CN115648887A - Control method and device for heat distribution of electric vehicle, storage medium and equipment - Google Patents
Control method and device for heat distribution of electric vehicle, storage medium and equipment Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
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Abstract
The invention discloses a control method, a control device, a storage medium and equipment for heat distribution of an electric vehicle. Wherein, the method comprises the following steps: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil way; determining the rotating speed of the electric oil pump based on the oil temperature value; based on the control mode and the rotation speed, the heat distribution is completed. The invention solves the technical problems that the overall efficiency of the existing electric automobile power assembly heat distribution system is low, the power consumption is high, and the low-temperature endurance mileage of the vehicle is influenced.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a method, a device, a storage medium and equipment for controlling heat distribution of an electric vehicle.
Background
In the prior art in the industry at present, a water cooling scheme is generally adopted for a motor, cooling water flows through a motor system to form a loop independently, a part of gears of a speed reducer are soaked in lubricating oil for cooling, oil stirring is carried out when the gears of the speed reducer rotate, and the oil splashes to lubricate and cool the gears of the speed reducer; the motor system and the speed reducer are cooled separately and used as two independent systems, the heat of the motor cannot be recycled for the speed reducer, the viscosity of lubricating oil of the speed reducer is high in resistance at low temperature, the oil stirring loss of the speed reducer increases the transmission efficiency and reduces, and the low-temperature endurance mileage is influenced.
In addition, the battery is usually heated by using a PTC, and the heating energy of the PTC comes from the battery itself and consumes a part of electric energy; for battery cooling, a radiator or an air conditioner is usually adopted for cooling, and the cooling is not divided into large and small cycles; aiming at the speed reducer, passive heat dissipation is mainly carried out by a speed reducer shell, active heat dissipation measures are not adopted, when the oil temperature rises to a certain degree, an alarm is given to prompt a driver to avoid violent driving or directly limit the output capacity of a motor, the load of the speed reducer is reduced, and the phenomenon that lubricating oil with overhigh temperature is deteriorated to influence the lubricating effect of the speed reducer and further influence the service life of the speed reducer is avoided; the low-temperature passenger compartment is heated mainly by absorbing heat from air by a heat pump air conditioner, the air conditioning medium is subjected to phase change conversion by a compressor, then the low-temperature passenger compartment is heated by a condenser and blown to the passenger compartment by a warm air core body or heated by PTC heating, the overall efficiency is low, the power consumption is high, and the driving mileage of a vehicle at low temperature is influenced.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a control method, a control device, a storage medium and control equipment for heat distribution of an electric automobile, and at least solves the technical problems that the overall efficiency of an existing heat distribution system of an electric automobile power assembly is low, the power consumption is high, and the low-temperature endurance mileage of a vehicle is influenced.
According to an aspect of an embodiment of the present invention, there is provided a method for controlling heat distribution of an electric vehicle, including: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; determining the rotating speed of the electric oil pump based on the oil temperature value; and completing heat distribution based on the control mode and the rotating speed.
Optionally, the determining a control mode based on the oil temperature value and the battery temperature value includes: if the first oil temperature value and the second oil temperature value are both smaller than the battery temperature value and the battery temperature value is greater than a first preset temperature value, determining that the control mode is a first control mode, wherein the first control mode is an oil temperature raising mode; if the first oil temperature value and the second oil temperature value are both greater than the battery temperature value and the battery temperature value is less than a second preset temperature value, determining that the control mode is a second control mode, wherein the second control mode is a battery cooling mode; and if an air conditioner starting instruction sent by a target vehicle is received, and the first oil temperature value and the second oil temperature value are both greater than a third preset temperature value, determining that the control mode is a third control mode, wherein the third control mode is an oil cooling mode.
Optionally, after determining the control mode based on the oil temperature value and the battery temperature value, the method further includes: when the control mode is a first control mode, controlling the three-way valve to adjust the valve core to a first preset position; when the control mode is a second control mode, controlling the three-way valve to adjust the valve core to a second preset position; and controlling the three-way valve to adjust the valve core to a third preset position when the control mode is a third control mode.
Optionally, the determining the rotation speed of the electric oil pump based on the oil temperature value includes: respectively comparing the first oil temperature value with a first preset temperature value and a second preset temperature value; if the first oil temperature value is lower than the first preset temperature value, determining that the rotating speed of the first electric oil pump is a low rotating speed; if the first oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a medium rotating speed; and if the first oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a high rotating speed.
Optionally, the above-mentioned rotational speed of determining the electric oil pump based on the above-mentioned oil temperature value includes: respectively comparing the second oil temperature value with a first preset temperature value and a second preset temperature value; if the second oil temperature value is lower than the first preset temperature value, determining that the rotating speed of the second electric oil pump is a low rotating speed; if the second oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining the rotating speed of the second electric oil pump to be a middle rotating speed; and if the second oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the second electric oil pump is a high rotating speed.
Optionally, before the heat distribution is completed based on the control mode and the rotation speed, the method further includes: acquiring a speed reducer rotating speed transmitted by a speed reducer output shaft, wherein the speed reducer output shaft comprises a first speed reducer output shaft and a second speed reducer output shaft, the speed reducer output shaft is installed on a first electric oil injection pump, and the second speed reducer output shaft is installed on a second electric oil injection pump; and determining the load of the fuel injection pump based on the rotating speed of the speed reducer by adopting a linear interpolation method, wherein the load of the fuel injection pump is used for controlling the electric fuel injection pump to operate according to the load of the fuel injection pump.
Optionally, the completing heat distribution based on the control mode and the rotation speed includes: adjusting the oil passage of the target vehicle based on the control mode; controlling the electric oil pump to operate according to the rotating speed under the oil path; and controlling the electric fuel injection pump to operate under the oil circuit according to the load of the fuel injection pump.
According to another aspect of the embodiments of the present invention, there is also provided a control apparatus for heat distribution of an electric vehicle, including: the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; the first determination module is used for determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; the second determination module is used for determining the rotating speed of the electric oil pump based on the oil temperature value; and the control module is used for finishing heat distribution based on the control mode and the rotating speed.
According to another aspect of the embodiments of the present invention, there is also provided a non-volatile storage medium, wherein the non-volatile storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing any one of the above control methods for electric vehicle heat distribution.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including a memory and a processor, where the memory stores therein a computer program, and the processor is configured to run the computer program to execute any one of the above control methods for heat distribution of an electric vehicle.
In the embodiment of the invention, the oil temperature value uploaded by an oil temperature sensor and the battery temperature value uploaded by a battery management device are obtained, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor arranged on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor arranged on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; determining the rotating speed of the electric oil pump based on the oil temperature value; based on the control mode and the rotating speed, heat distribution is completed, the aim of indirectly prolonging the low-temperature endurance mileage of the pure electric vehicle by adopting an oil cooling mode is fulfilled, so that the technical effects of preventing the temperature of the battery from being increased, increasing the charging and discharging power of the battery in a low-temperature environment, reducing the low-temperature energy attenuation rate of the battery, and improving the dynamic property and the endurance mileage of the whole vehicle are achieved, and the technical problems that the overall efficiency of the heat distribution system of the existing electric vehicle power assembly is low, the power consumption is high, and the endurance mileage of the vehicle at low temperature is influenced are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method for controlling heat distribution of an electric vehicle according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an alternative low temperature heat distribution system for a pure electric vehicle powertrain, according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an alternative low temperature heat distribution system oil circuit of a pure electric vehicle powertrain according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of an oil circuit of an alternative low-temperature heat distribution system of a pure electric vehicle powertrain according to an embodiment of the invention;
FIG. 5 is a schematic diagram of an alternative low temperature heat distribution system oil circuit of a pure electric vehicle powertrain according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of an alternative control mode transition structure according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an alternative vehicle control unit configuration according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an alternative three-way valve control configuration according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a control device for heat distribution of an electric vehicle according to an embodiment of the invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
In accordance with an embodiment of the present invention, there is provided an embodiment of a method for controlling heat distribution of an electric vehicle, where the steps illustrated in the flowchart of the drawings may be implemented in a computer system, such as a set of computer executable instructions, and where a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than that illustrated or described herein.
Fig. 1 is a flowchart of a method for controlling heat distribution of an electric vehicle according to an embodiment of the present invention, as shown in fig. 1, the method includes the following steps:
step S102, acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by a first oil temperature sensor arranged on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by a second oil temperature sensor arranged on a second electric oil pump;
step S104, determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path;
step S106, determining the rotating speed of the electric oil pump based on the oil temperature value;
and step S108, finishing heat distribution based on the control mode and the rotating speed.
In an embodiment of the present invention, the execution main body of the control of the electric vehicle heat distribution provided in the steps S102 to S108 is a heat distribution system running on the electric vehicle, and the control mode is determined based on the oil temperature value and the battery temperature value by acquiring the oil temperature value uploaded by the oil temperature sensor and the battery temperature value uploaded by the battery management device, and the rotation speed of the electric oil pump is determined based on the oil temperature value; and adjusting the oil path of the target vehicle based on the control mode, and controlling the electric oil pump to operate under the oil path according to the rotating speed, so as to complete heat distribution through oil.
It should be noted that the oil temperature values include a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by a first oil temperature sensor installed on a first electric oil pump, the second oil temperature value is an oil temperature value measured by a second oil temperature sensor installed on a second electric oil pump, and the control mode is used for determining a spool position of a three-way valve in a target vehicle oil path.
As an optional embodiment, as shown in fig. 2, the schematic diagram of an oil path of a low-temperature heat distribution system of a power assembly of a pure electric vehicle mainly includes a thermal management subsystem and a control subsystem, where the thermal management subsystem includes a first motor system, a second motor system, a first oil injection pump, a second oil injection pump, a first speed reducer, a second speed reducer, a brake disc, a brake caliper, an electric oil pump 1, an electric oil pump 2, an electric water pump 1, a three-way valve 2, a three-way valve 3, a warm air core, a blower, an expansion oil tank, an expansion water tank, and a power battery system. The first motor system, the second motor system, the first oil injection pump, the second oil injection pump, the electric oil pump 1, the electric oil pump 2, the three-way valve 1, the three-way valve 2, the brake disc, the brake caliper and the expansion oil tank are connected through a lubricating oil pipeline to form a closed cooling oil circuit, the three-way valve 1 and the three-way valve 2 are completely the same and are provided with three oil ports, and 12 oil ports or 13 oil ports can be controlled; the first oil injection pump and the second oil injection pump are both provided with oil injection nozzles (not shown), the load of the oil injection pumps can be controlled through PWM or other modes to realize the control of oil injection amount per unit time, the first oil injection pump injects oil to the first speed reducer gear, and the second oil injection pump injects oil to the second speed reducer gear; the rotating speeds of the electric oil pump 1 and the electric oil pump 2 determine the oil flow rate in the oil circuit. The electric oil pump 1 is provided with a first oil temperature sensor for detecting the oil temperature of oil, the electric oil pump 2 is provided with a second oil temperature sensor for detecting the oil temperature of the oil, and the electric water pump 1 is internally provided with a water temperature sensor for detecting the temperature of cooling water and reporting the temperature to the VCU; the cooling system comprises a power battery system, a warm air core body, an electric water pump 1, a three-way valve 3, an expansion water tank and the like, wherein the cooling circuit is formed, cooling liquid is filled in the cooling circuit, the cooling liquid flows in the cooling circuit through the operation of the electric water pump 1, the speed of the flow of the cooling liquid is determined by the rotating speed of the electric water pump 1, and the heat exchange between a cooling oil circuit and a cooling water circuit is realized through a heat exchanger.
Optionally, as shown in a structural schematic diagram of the vehicle controller shown in fig. 7, the control subsystem includes a Vehicle Controller Unit (VCU), a first motor controller unit (MCU, hereinafter abbreviated to MCU 1), a second motor controller unit (MCU 2), a Battery Management System (BMS), a first speed sensor and a second speed sensor, a first oil temperature sensor and a second oil temperature sensor, an electric oil pump 1, an electric oil pump 2, a three-way valve 1, a three-way valve 2, a three-way valve 3, a first oil injection pump, a second oil injection pump, an electric water pump 1, an air conditioner controller, an air blower, a compressor, and the like. The first oil temperature sensor and the second oil temperature sensor are used for transmitting detected oil temperatures to the VCU, the first rotating speed sensor is used for detecting the rotating speed of the corresponding output shaft of the first speed reducer and feeding the rotating speed signal back to the VCU, the second rotating speed sensor is used for detecting the rotating speed of the corresponding output shaft of the second speed reducer and feeding the rotating speed signal back to the VCU, the MCU is used for executing a motor torque command sent by the VCU and controlling the corresponding motor to achieve target torque output, the MCU can also be used for sending the corresponding motor rotating speed, torque, motor temperature and motor inverter temperature to the VCU, the BMS transmits signals such as battery power and battery temperature to the VCU, the VCU can control the communication state of the three-way valve 1, the three-way valve 2 and the three-way valve 3, control the rotating speeds of the electric oil pump 1 and the electric oil pump 2, control the rotating speed of the electric water pump 1, control the loads of the first oil injection pump and the second oil injection pump, and the gear of the compressor are controlled by the air conditioner controller.
As an alternative embodiment, as shown in fig. 3, a schematic diagram of an oil path of a low-temperature heat distribution system of a power assembly of a pure electric vehicle is shown, and a heat exchanger, an electric water pump and an expansion water tank are eliminated on the basis of fig. 2; the power battery, the warm air core body and the three-way valve 3 form a closed cooling oil path, and the cooling oil is the same as a motor cooling loop. The scheme has higher heat exchange efficiency, but has certain requirements on the batteries and the oil circuit design in the warm air core body.
As an alternative embodiment, as shown in fig. 4, an air conditioning system (including an evaporator, a condenser, a compressor, etc.) is added to the schematic diagram of an oil path of a low-temperature heat distribution system of a pure electric vehicle powertrain, based on fig. 2, an air conditioning controller is added to the control subsystem, and control of the compressor is added.
As an alternative embodiment, as shown in fig. 5, an air-conditioning system (including an evaporator, a condenser, a compressor, etc.) is added to the schematic diagram of an oil path of a low-temperature heat distribution system of a pure electric vehicle powertrain, based on fig. 3, an air-conditioning controller is added to the control subsystem, and control of the compressor is added.
According to the embodiment of the invention, the problem that the oil stirring loss is increased due to the increase of the oil stirring resistance of the speed reducer at low temperature can be solved, the intelligent oil injection is carried out on the speed reducer gear and the bearing by using the electric oil injection pump in an oil cooling mode, the speed reducer gear is prevented from being soaked in oil, the oil stirring resistance of the speed reducer is greatly reduced, the transmission efficiency of the speed reducer is improved, and the low-temperature endurance mileage of the pure electric vehicle is indirectly prolonged; meanwhile, a closed-loop cooling oil path is adopted to connect the motor system and the oil injection pump, heat emitted by the motor during operation is utilized to quickly heat oil, and the heated oil is sprayed to the speed reducer, so that the low-temperature transmission efficiency of the speed reducer is improved, the waste heat utilization rate of the motor is increased, and the problem of energy waste is solved; a bypass branch is added in a cooling oil loop through a three-way valve, when the temperature of oil is low, the oil does not flow through a heat exchanger, and the oil circulates in the motor and the oil injection pump (called as 'small circulation' for short), so that the temperature of the oil is rapidly increased; when the temperature of the oil rises to a certain degree, the oil flows through the heat exchanger or the battery (called as 'large circulation' for short) by controlling the opening and closing of the three-way valve, heat is brought to a battery loop to heat the battery, and the oil is cooled, so that on one hand, the temperature of the cooling oil of the motor is prevented from being too high, the motor and the speed reducer are enabled to work in a reasonable temperature range, on the other hand, the temperature of the battery can be prevented from being increased, the charging and discharging power of the battery in a low-temperature environment is increased, the low-temperature energy attenuation rate of the battery is reduced, and the dynamic property and the endurance mileage of the whole vehicle are improved; when the cooling fluid temperature reached certain degree, make heat flow through warm braw core or evaporimeter through three-way valve 1 and three-way valve 3, for passenger's cabin provides the heat, promote air conditioning system and heat efficiency, reduce the air conditioner energy consumption, the extension low temperature continuation of the journey mileage.
The heat distribution of the vehicle is completed through the thermal management subsystem, the control subsystem, corresponding conditional logics for switching different modes and a control strategy of a component.
In an embodiment of the present invention, as shown in a schematic diagram of a control mode conversion structure shown in fig. 6, if a first oil temperature value and a second oil temperature value are both less than the battery temperature value, and the battery temperature value is greater than a first preset temperature value, it is determined that the control mode is a first control mode, where the first control mode is an oil temperature increasing mode; if the first oil temperature value and the second oil temperature value are both greater than the battery temperature value and the battery temperature value is less than a second preset temperature value, determining that the control mode is a second control mode, wherein the second control mode is a battery cooling mode; and if an air conditioner starting instruction sent by the target vehicle is received, and the first oil temperature value and the second oil temperature value are both greater than a third preset temperature value, determining that the control mode is a third control mode, wherein the third control mode is an oil cooling mode.
In an optional embodiment, after determining the control mode based on the oil temperature value and the battery temperature value, the method further includes: when the control mode is a first control mode, controlling the three-way valve to adjust the valve core to a first preset position; when the control mode is a second control mode, controlling the three-way valve to adjust the valve core to a second preset position; and controlling the three-way valve to adjust the valve core to a third preset position when the control mode is a third control mode.
As an alternative embodiment, in the first control mode, the three-way valve 1 is switched on 12 and switched off 13, and the motor cooling oil flows through the bypass branch without flowing through the heat exchanger or the power battery, which is called as a small circulation; the purpose of the small circulation is to transmit heat generated by a motor body and an inverter when the motor operates to oil, the temperature of the oil is rapidly increased at low temperature by the heat generated by a brake disc and a brake caliper, and the increased oil is sprayed to a speed reducer to lubricate the speed reducer, so that the heat of the system is reasonably utilized and distributed.
As an alternative embodiment, in the second control mode, 12 of the three-way valve 1 is closed, 13 is communicated, the cooling oil does not flow through the bypass branch, the cooling oil flows through the heat exchanger or the cooling water flows through the power battery; the three-way valve 3 is communicated by 12, the three-way valve is closed by 13, and the cooling liquid does not flow through a warm air core or an evaporator, and the large circulation 1 is called. The purpose of the circulation is to prevent the temperature of the cooling oil from being too high, ensure the heating of the motor and the speed reducer to be timely and rapidly dissipated, avoid influencing the performance of the motor and the service life of the speed reducer; utilize the heat that motor, reduction gear produced and the heat that the braking produced simultaneously, exchange back or direct transmission for power battery through the heat exchanger for the battery temperature is unlikely to be low excessively, guarantees that the battery heaies up rapidly at low temperature, guarantees the discharge power of battery on the one hand, guarantees whole car dynamic property, guarantees on the one hand that battery energy is unlikely to the decay too much, reduces the decay of low temperature continuation of the journey mileage.
As an alternative embodiment, in the third control mode, 12 of the three-way valve 1 is closed and 13 is communicated, 12 of the three-way valve 3 is closed and 13 is communicated, the cooling oil does not flow through the bypass branch of the motor circuit, the cooling oil/cooling water does not flow through the power battery, and the cooling liquid flows through the warm air core or the evaporator. Referred to as major loop 2. The purpose of this circulation is the heat that the unnecessary heat that utilizes motor, reduction gear to produce simultaneously and the braking produced, exchanges the back through the heat exchanger or directly transmits for warm braw core or evaporimeter, for passenger cabin heat supply, guarantees low temperature driver and crew's comfort level, improves air conditioning efficiency simultaneously, reduces the energy consumption, indirectly promotes low temperature continuation of the journey mileage.
In an optional embodiment, the determining the rotation speed of the electric oil pump based on the oil temperature value includes: respectively comparing the first oil temperature value with a first preset temperature value and a second preset temperature value; if the first oil temperature value is lower than the first preset temperature value, determining that the rotating speed of the first electric oil pump is a low rotating speed; if the first oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a medium rotating speed; and if the first oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a high rotating speed.
In the embodiment of the invention, when the oil temperature measured by the first oil temperature sensor is less than a certain value T1_ oil1 (such as minus 10 ℃), the electric oil pump works at the highest rotating speed (80-100%); when the oil temperature measured by the first oil temperature sensor is more than or equal to a certain value minus 10 ℃ and less than 10 ℃, the electric oil pump works at a medium rotating speed (50-80 percent of the maximum rotating speed); when the oil temperature measured by the first oil temperature sensor is more than or equal to a certain value of 10 ℃, the electric oil pump works at a low rotating speed (30-50% of the maximum rotating speed).
In an optional embodiment, the determining the rotation speed of the electric oil pump based on the oil temperature value includes: respectively comparing the temperature value of the second oil with a first preset temperature value and a second preset temperature value; if the second oil temperature value is lower than the first preset temperature value, determining that the rotating speed of the second electric oil pump is a low rotating speed; if the second oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining the rotating speed of the second electric oil pump to be a middle rotating speed; and if the second oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the second electric oil pump is a high rotating speed.
In the embodiment of the invention, when the oil temperature measured by the second oil temperature sensor is less than a certain value (for example-10 ℃), the electric oil pump works at a high rotating speed (80-100% of the maximum rotating speed); when the oil temperature measured by the second oil temperature sensor is more than or equal to a certain value of minus 10 ℃ and less than 10 ℃, the electric oil pump works at a medium rotating speed (50-80 percent of the maximum rotating speed); when the oil temperature measured by the second oil temperature sensor is more than or equal to a certain value of 10 ℃, the electric oil pump works at a low rotating speed (30-50% of the maximum rotating speed).
In an optional embodiment, before completing the heat distribution based on the control mode and the rotation speed, the method further comprises: acquiring a speed reducer rotating speed transmitted by a speed reducer output shaft, wherein the speed reducer output shaft comprises a first speed reducer output shaft and a second speed reducer output shaft, the speed reducer output shaft is installed on a first electric oil injection pump, and the second speed reducer output shaft is installed on a second electric oil injection pump; and determining the load of the fuel injection pump based on the rotating speed of the speed reducer by adopting a linear interpolation method, wherein the load of the fuel injection pump is used for controlling the electric fuel injection pump to operate according to the load of the fuel injection pump.
In the embodiment of the invention, table look-up is carried out according to the rotating speed of the output shaft of the first speed reducer to output the corresponding load, specifically, as shown in the following table, when the rotating speed is between the numerical values of the following table, the load of the fuel injection pump is determined by adopting a linear interpolation method; and (3) performing table lookup according to the rotating speed of the output shaft of the second speed reducer to output corresponding load, specifically, as shown in the following table, and determining the load of the fuel injection pump by adopting a linear interpolation method when the rotating speed is between the numerical values of the following table.
It should be noted that the corresponding relationship between the load of the electric fuel injection pump and the rotating speed of the output shaft of the speed reducer is shown in the following table:
TABLE 1
It should be noted that the fuel injection pump load may be 30% when the retarder output shaft speed is 750 rpm.
In an optional embodiment, said performing heat distribution based on said control mode and said rotation speed comprises: adjusting the oil passage of the target vehicle based on the control mode; controlling the electric oil pump to operate according to the rotating speed under the oil path; and controlling the electric fuel injection pump to operate under the oil circuit according to the load of the fuel injection pump.
In the embodiment of the present invention, for the oil paths shown in fig. 2 to 5, the control strategies corresponding to the small cycles are the same, and the controlled components are the electric oil pump 1, the electric oil pump 2, the three-way valve 1, the three-way valve 2, the first oil injection pump, and the second oil injection pump, which are specifically shown in the following table. The above temperature thresholds are all exemplified as optimal values but not unique values. The electric water pump 1 and the air conditioning system do not work, and the three-way valve 3 maintains a default state (12 is communicated, and 13 is closed).
TABLE 2
In the embodiment of the present invention, for the oil circuit shown in fig. 2 to 5, the control strategy of the mode 2 (large cycle 1) is as follows, and for the system shown in fig. 2 and 4, the controlled components are the electric oil pump 1, the electric oil pump 2, the three-way valve 1, the three-way valve 2, the first oil injection pump, the second oil injection pump, the electric water pump 1 and the three-way valve 3; the blower and the compressor do not work; for the systems shown in fig. 3 and 5, the controlled components are an electric oil pump 1, an electric oil pump 2, a three-way valve 1, a three-way valve 2, a first oil injection pump, a second oil injection pump and a three-way valve 3; the blower and the compressor do not work; for the systems shown in fig. 2 to 5, the control methods corresponding to the same components in this mode are the same, and the following table specifically shows. The temperature threshold values are all exemplified, and are optimal values but not unique values.
TABLE 3
In the embodiment of the present invention, for the oil passages shown in fig. 2 to 5, the control strategy of mode 3 (large cycle 2): for the system shown in fig. 2, the controlled components are an electric oil pump 1, an electric oil pump 2, a three-way valve 1, a three-way valve 2, a first oil injection pump, a second oil injection pump, an electric water pump 1, a three-way valve 3, and a blower. Referring to fig. 3, the controlled elements are an electric oil pump 1, an electric oil pump 2, a three-way valve 1, a three-way valve 2, a first oil injection pump, a second oil injection pump, a three-way valve 3 and a blower. For the system shown in fig. 4, the controlled components are an electric oil pump 1, an electric oil pump 2, a three-way valve 1, a three-way valve 2, a first oil injection pump, a second oil injection pump, an electric water pump 1, a three-way valve 3, a blower and a compressor. For the system shown in fig. 5, the controlled components are an electric oil pump 1, an electric oil pump 2, a three-way valve 1, a three-way valve 2, a first oil injection pump, a second oil injection pump, a three-way valve 3, a blower and a compressor. The control strategy for a particular component is shown in the table below. The temperature threshold values are all exemplified as optimal values but not unique values.
TABLE 4
Through the steps, the oil temperature value uploaded by the oil temperature sensor and the battery temperature value uploaded by the battery management equipment can be obtained, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor arranged on the first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor arranged on the second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil way; determining the rotating speed of the electric oil pump based on the oil temperature value; based on the control mode and the rotating speed, heat distribution is completed, the aim of indirectly prolonging the low-temperature endurance mileage of the pure electric vehicle by adopting an oil cooling mode is fulfilled, so that the technical effects of preventing the temperature of the battery from being increased, increasing the charging and discharging power of the battery in a low-temperature environment, reducing the low-temperature energy attenuation rate of the battery, and improving the dynamic property and the endurance mileage of the whole vehicle are achieved, and the technical problems that the overall efficiency of the heat distribution system of the existing electric vehicle power assembly is low, the power consumption is high, and the endurance mileage of the vehicle at low temperature is influenced are solved.
Example 2
According to an embodiment of the present invention, there is further provided an embodiment of an apparatus for implementing the control method for heat distribution of an electric vehicle, and fig. 9 is a schematic structural diagram of the control apparatus for heat distribution of an electric vehicle according to the embodiment of the present invention, and as shown in fig. 9, the apparatus includes: an acquisition module 90, a first determination module 92, a second determination module 94, and a control module 96, wherein:
an acquisition module 90, configured to acquire an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by a battery management device, where the oil temperature value includes a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by a first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by a second oil temperature sensor installed on a second electric oil pump;
a first determining module 92, configured to determine a control mode based on the oil temperature value and the battery temperature value, where the control mode is used to determine a spool position of a three-way valve in a target vehicle oil path;
a second determining module 94, configured to determine a rotation speed of the electric oil pump based on the oil temperature value;
and a control module 96 for performing heat distribution based on the control mode and the rotational speed.
It should be noted here that the obtaining module 90, the first determining module 92, the second determining module 94 and the control module 96 correspond to steps S102 to S108 in the embodiment, and the four modules are the same as the corresponding steps in the implementation example and the application scenario, but are not limited to the disclosure in the embodiment.
It should be noted that, for the preferred implementation of this embodiment, reference may be made to the relevant description in the embodiment, and details are not described here.
Embodiments of a computer-readable storage medium are also provided according to embodiments of the present invention. Optionally, in this embodiment, the computer-readable storage medium may be configured to store program codes executed by the control method for heat distribution of an electric vehicle provided in the above embodiment.
Optionally, in this embodiment, the computer-readable storage medium may be located in any one of computer terminals in a computer terminal group in a computer network, or in any one of mobile terminals in a mobile terminal group.
Optionally, in this embodiment, the computer readable storage medium is configured to store program codes for performing the following steps: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; determining the rotating speed of the electric oil pump based on the oil temperature value; and completing heat distribution based on the control mode and the rotating speed.
Optionally, the computer-readable storage medium is configured to store program codes for performing the following steps: if the first oil temperature value and the second oil temperature value are both smaller than the battery temperature value and the battery temperature value is greater than a first preset temperature value, determining that the control mode is a first control mode, wherein the first control mode is an oil temperature raising mode; if the first oil temperature value and the second oil temperature value are both greater than the battery temperature value and the battery temperature value is less than a second preset temperature value, determining that the control mode is a second control mode, wherein the second control mode is a battery cooling mode; and if an air conditioner starting instruction sent by the target vehicle is received, and the first oil temperature value and the second oil temperature value are both greater than a third preset temperature value, determining that the control mode is a third control mode, wherein the third control mode is an oil cooling mode.
Optionally, the computer-readable storage medium is configured to store program codes for performing the following steps: when the control mode is a first control mode, controlling the three-way valve to adjust the valve core to a first preset position; when the control mode is a second control mode, controlling the three-way valve to adjust the valve core to a second preset position; and controlling the three-way valve to adjust the valve core to a third preset position when the control mode is a third control mode.
Optionally, the computer-readable storage medium is configured to store program codes for performing the following steps: respectively comparing the first oil temperature value with a first preset temperature value and a second preset temperature value; if the first oil temperature value is smaller than the first preset temperature value, determining that the rotating speed of the first electric oil pump is a low rotating speed; if the first oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a medium rotating speed; and if the first oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a high rotating speed.
Optionally, the computer-readable storage medium is configured to store program codes for performing the following steps: respectively comparing the temperature value of the second oil with a first preset temperature value and a second preset temperature value; if the second oil temperature value is lower than the first preset temperature value, determining that the rotating speed of the second electric oil pump is a low rotating speed; if the second oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining the rotating speed of the second electric oil pump to be a middle rotating speed; and if the second oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the second electric oil pump is a high rotating speed.
Optionally, the computer-readable storage medium is configured to store program codes for performing the following steps: acquiring the rotating speed of a speed reducer transmitted by an output shaft of the speed reducer, wherein the output shaft of the speed reducer comprises a first output shaft of the speed reducer and a second output shaft of the speed reducer, the output shaft of the speed reducer is arranged on a first electric oil injection pump, and the output shaft of the second speed reducer is arranged on a second electric oil injection pump; and determining the load of the fuel injection pump based on the rotating speed of the speed reducer by adopting a linear interpolation method, wherein the load of the fuel injection pump is used for controlling the electric fuel injection pump to operate according to the load of the fuel injection pump.
Optionally, the computer-readable storage medium is configured to store program codes for performing the following steps: adjusting the oil passage of the target vehicle based on the control mode; controlling the electric oil pump to operate according to the rotating speed under the oil path; and controlling the electric fuel injection pump to operate under the oil circuit according to the load of the fuel injection pump.
Embodiments of a processor are also provided according to embodiments of the present invention. Optionally, in this embodiment, the computer-readable storage medium may be configured to store the program code executed by the control method for heat distribution of an electric vehicle provided in embodiment 1.
The embodiment of the application provides an electronic device, the device comprises a processor, a memory and a program which is stored on the memory and can be run on the processor, and the processor executes the program and realizes the following steps: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; determining the rotating speed of the electric oil pump based on the oil temperature value; and completing heat distribution based on the control mode and the rotating speed.
The embodiment of the application provides an electronic device, the device comprises a processor, a memory and a program which is stored on the memory and can be run on the processor, and the processor executes the program and realizes the following steps: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil way; determining the rotating speed of the electric oil pump based on the oil temperature value; and completing heat distribution based on the control mode and the rotating speed.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; determining the rotating speed of the electric oil pump based on the oil temperature value; and completing heat distribution based on the control mode and the rotating speed.
The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device: acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump; determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path; determining the rotating speed of the electric oil pump based on the oil temperature value; and completing heat distribution based on the control mode and the rotating speed.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other manners. The above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A control method for heat distribution of an electric vehicle is characterized by comprising the following steps:
acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, wherein the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump;
determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining a valve core position of a three-way valve in a target vehicle oil path;
determining a rotational speed of an electric oil pump based on the oil temperature value;
based on the control mode and the rotational speed, heat distribution is accomplished.
2. The method of claim 1, wherein determining a control mode based on the oil temperature value and the battery temperature value comprises:
if the first oil temperature value and the second oil temperature value are both smaller than the battery temperature value and the battery temperature value is greater than a first preset temperature value, determining that the control mode is a first control mode, wherein the first control mode is an oil temperature rising mode;
if the first oil temperature value and the second oil temperature value are both greater than the battery temperature value and the battery temperature value is less than a second preset temperature value, determining that the control mode is a second control mode, wherein the second control mode is a battery cooling mode;
and if an air conditioner starting instruction sent by a target vehicle is received, and the first oil temperature value and the second oil temperature value are both greater than a third preset temperature value, determining that the control mode is a third control mode, wherein the third control mode is an oil cooling mode.
3. The method of claim 2, wherein after the determining a control mode based on the oil temperature value and the battery temperature value, the method further comprises:
under the condition that the control mode is a first control mode, controlling the three-way valve to adjust the valve core to a first preset position;
under the condition that the control mode is a second control mode, controlling the three-way valve to adjust the valve core to a second preset position;
and under the condition that the control mode is a third control mode, controlling the three-way valve to adjust the valve core to a third preset position.
4. The method of claim 3, wherein determining a rotational speed of an electric oil pump based on the oil temperature value comprises:
respectively comparing the first oil temperature value with the first preset temperature value and the second preset temperature value;
if the first oil temperature value is smaller than the first preset temperature value, determining that the rotating speed of the first electric oil pump is a low rotating speed;
if the first oil temperature value is greater than the first preset temperature value and less than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a medium rotating speed;
and if the first oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the first electric oil pump is a high rotating speed.
5. The method of claim 3, wherein determining a rotational speed of an electric oil pump based on the oil temperature value comprises:
respectively comparing the second oil temperature value with the first preset temperature value and the second preset temperature value;
if the second oil temperature value is smaller than the first preset temperature value, determining that the rotating speed of the second electric oil pump is a low rotating speed;
if the second oil temperature value is greater than the first preset temperature value and less than a second preset temperature value, determining the rotating speed of the second electric oil pump as a middle rotating speed;
and if the second oil temperature value is greater than the second preset temperature value, determining that the rotating speed of the second electric oil pump is a high rotating speed.
6. The method of claim 1, wherein prior to said completing heat distribution based on said control mode and said rotational speed, said method further comprises:
acquiring a speed reducer rotating speed transmitted by a speed reducer output shaft, wherein the speed reducer output shaft comprises a first speed reducer output shaft and a second speed reducer output shaft, the speed reducer output shaft is arranged on a first electric oil injection pump, and the second speed reducer output shaft is arranged on a second electric oil injection pump;
and determining the load of the fuel injection pump based on the rotating speed of the speed reducer by adopting a linear interpolation method, wherein the load of the fuel injection pump is used for controlling the electric fuel injection pump to operate according to the load of the fuel injection pump.
7. The method of claim 6, wherein said performing heat distribution based on said control mode and said rotational speed comprises:
adjusting the oil circuit of the target vehicle based on the control mode;
controlling the electric oil pump to operate according to the rotating speed under the oil path;
and controlling the electric fuel injection pump to operate under the oil circuit according to the load of the fuel injection pump.
8. A control apparatus for heat distribution of an electric vehicle, comprising:
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring an oil temperature value uploaded by an oil temperature sensor and a battery temperature value uploaded by battery management equipment, the oil temperature value comprises a first oil temperature value and a second oil temperature value, the first oil temperature value is an oil temperature value measured by the first oil temperature sensor installed on a first electric oil pump, and the second oil temperature value is an oil temperature value measured by the second oil temperature sensor installed on a second electric oil pump;
the first determination module is used for determining a control mode based on the oil temperature value and the battery temperature value, wherein the control mode is used for determining the valve core position of a three-way valve in a target vehicle oil path;
the second determination module is used for determining the rotating speed of the electric oil pump based on the oil temperature value;
and the control module is used for completing heat distribution based on the control mode and the rotating speed.
9. A non-volatile storage medium, characterized in that the non-volatile storage medium stores a plurality of instructions, the instructions are suitable for being loaded by a processor and executing the control method for electric vehicle heat distribution according to any one of claims 1 to 7.
10. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the control method of electric vehicle heat distribution according to any one of claims 1 to 7.
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| PCT/CN2023/092312 WO2024066359A1 (en) | 2022-09-30 | 2023-05-05 | Method and apparatus for controlling heat distribution of electric vehicle, storage medium, and device |
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| CN202211230442.6A CN115648887A (en) | 2022-09-30 | 2022-09-30 | Control method and device for heat distribution of electric vehicle, storage medium and equipment |
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| WO2024066359A1 (en) * | 2022-09-30 | 2024-04-04 | 中国第一汽车股份有限公司 | Method and apparatus for controlling heat distribution of electric vehicle, storage medium, and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024066359A1 (en) * | 2022-09-30 | 2024-04-04 | 中国第一汽车股份有限公司 | Method and apparatus for controlling heat distribution of electric vehicle, storage medium, and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024066359A1 (en) | 2024-04-04 |
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