CN110293953B - Vehicle working mode control method, device, equipment and readable storage medium - Google Patents
Vehicle working mode control method, device, equipment and readable storage medium Download PDFInfo
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- CN110293953B CN110293953B CN201910579179.3A CN201910579179A CN110293953B CN 110293953 B CN110293953 B CN 110293953B CN 201910579179 A CN201910579179 A CN 201910579179A CN 110293953 B CN110293953 B CN 110293953B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The embodiment of the invention provides a vehicle working mode control method, a device, equipment and a readable storage medium, wherein the method comprises the following steps: acquiring current power demand information of a vehicle, wherein the vehicle is a hybrid vehicle; comparing the power demand information with a first preset threshold; and if the power demand information is less than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode, and if the power demand information is greater than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode. According to the embodiment of the invention, when the current power demand of the vehicle is determined to be low, the storage battery provides power for the vehicle, the use of the low-speed area of the engine is reduced, energy conservation and consumption reduction are realized, and when the current power demand of the vehicle is determined to be high, the engine provides power for the vehicle, so that sufficient power is provided for the vehicle.
Description
Technical Field
The embodiment of the invention relates to the field of automobiles, in particular to a vehicle working mode control method, device and equipment and a readable storage medium.
Background
With the increasing pressure of energy exhaustion and environmental protection, hybrid vehicles have appeared, wherein a series hybrid vehicle is composed of three power assemblies, i.e. an engine, a generator and a motor, which are connected in series.
In the prior art, the power energy of the series hybrid electric vehicle comes from the motor, and the engine can only drive the generator to provide power for the motor and can not directly drive the vehicle to run.
However, the series hybrid vehicle has the following disadvantages: the engine is always in a working running state, when the vehicle runs at a low speed, the fuel consumption of the engine is high, the energy of the engine needs to be converted in multiple stages to provide electric energy for the motor, and the energy loss is serious.
Disclosure of Invention
The embodiment of the invention provides a vehicle working mode control method, a vehicle working mode control device, vehicle working mode control equipment and a readable storage medium, and aims to solve the problem that an existing series type hybrid electric vehicle is large in energy consumption.
In a first aspect, an embodiment of the present invention provides a vehicle operating mode control method, including:
acquiring current power demand information of a vehicle, wherein the vehicle is a hybrid vehicle;
comparing the power demand information with a first preset threshold;
if the power demand information is smaller than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode, wherein the storage battery working mode is a working mode in which a storage battery supplies power to the vehicle;
and if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which the engine provides power for the vehicle.
In one possible embodiment, the method further comprises:
if the power demand information is smaller than the first preset threshold value, acquiring first electric quantity information of a storage battery of the vehicle;
and determining whether to control an engine to charge the storage battery or not according to the first electric quantity information and a preset control strategy.
In one possible embodiment, the determining whether to control the engine to charge the storage battery according to the first electric quantity information and a preset control strategy comprises:
comparing the first electric quantity information with a second preset threshold value;
when the first electric quantity information is smaller than the second preset threshold value, sending a charging instruction to an engine controller to control the engine to charge the storage battery; monitoring second electric quantity information of the storage battery when the storage battery is charged by the engine;
and when the second electric quantity information is larger than a third preset threshold value, sending a stop instruction to an engine controller so as to stop the engine from charging the storage battery.
In one possible embodiment, the power demand information is a ratio of a current power demand value to a rated power value; the first electric quantity information and the second electric quantity information are both the state of charge SOC of the storage battery; the first preset threshold is 50%, the second preset threshold is 0.5, and the third preset threshold is 0.8.
In one possible embodiment, the engine operating modes include a first operating mode and a second operating mode, wherein the first operating mode is for powering the vehicle by the engine and the second operating mode is for powering the vehicle by both the engine and the battery;
the method further comprises the following steps:
when the power demand information is larger than the first preset threshold and smaller than a fourth preset threshold, controlling the working mode of the vehicle to be in the first working mode;
and when the power demand information is larger than the fourth preset threshold value, controlling the working mode of the vehicle to be in the second working mode.
In a second aspect, an embodiment of the present invention provides a vehicle operation mode control apparatus, including:
the system comprises an acquisition module, a power supply module and a power supply module, wherein the acquisition module is used for acquiring the current power demand information of a vehicle, and the vehicle is a hybrid vehicle;
the comparison module is used for comparing the power demand information with a first preset threshold;
the processing module is used for controlling the working mode of the vehicle to be in a storage battery working mode if the power demand information is smaller than the first preset threshold, wherein the storage battery working mode is a working mode in which a storage battery provides power for the vehicle;
and if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which the engine provides power for the vehicle.
In a possible implementation manner, the obtaining module is configured to obtain first electric quantity information of a storage battery of the vehicle if the power demand information is smaller than the first preset threshold;
and the processing module is used for determining whether to control the engine to charge the storage battery or not according to the first electric quantity information and a preset control strategy.
In a possible implementation manner, the comparison module is configured to compare the first power information with a second preset threshold;
the processing module is configured to:
when the first electric quantity information is smaller than the second preset threshold value, sending a charging instruction to an engine controller to control the engine to charge the storage battery; monitoring second electric quantity information of the storage battery when the storage battery is charged by the engine;
and when the second electric quantity information is larger than a third preset threshold value, sending a stop instruction to an engine controller so as to stop the engine from charging the storage battery.
In one possible embodiment, the power demand information is a ratio of a current power demand value to a rated power value; the first electric quantity information and the second electric quantity information are both the state of charge SOC of the storage battery; the first preset threshold is 50%, the second preset threshold is 0.5, and the third preset threshold is 0.8.
In one possible embodiment, the engine operating modes include a first operating mode and a second operating mode, wherein the first operating mode is for powering the vehicle by the engine and the second operating mode is for powering the vehicle by both the engine and the battery;
the processing module is configured to:
when the power demand information is larger than the first preset threshold and smaller than a fourth preset threshold, controlling the working mode of the vehicle to be in the first working mode;
and when the power demand information is larger than the fourth preset threshold value, controlling the working mode of the vehicle to be in the second working mode.
In a third aspect, an embodiment of the present invention provides a vehicle operation mode control apparatus including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform the vehicle operating mode control method as described above in the first aspect and various possible implementations of the first aspect.
In a fourth aspect, an embodiment of the present invention provides a readable storage medium, where a computer executes instructions, and when a processor executes the computer to execute the instructions, a vehicle operation mode control method according to the first aspect and various possible implementation manners of the first aspect is implemented.
According to the vehicle working mode control method, the vehicle working mode control device, the vehicle working mode control equipment and the readable storage medium, the current power demand information of the hybrid vehicle is obtained, and the power demand information is compared with a first preset threshold value; if the power demand information is smaller than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode, wherein the storage battery working mode is a working mode in which a storage battery supplies power to the vehicle; and if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which the engine provides power for the vehicle. According to the embodiment of the invention, when the power demand of the vehicle is determined to be low, the storage battery provides power for the vehicle, the use of the low-speed area of the engine is reduced, energy conservation and consumption reduction are realized, and when the power demand of the vehicle is determined to be high, the engine provides power for the vehicle, so that sufficient power is provided for the vehicle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle operation mode control system according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for controlling a vehicle operating mode according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart illustrating a method for controlling a vehicle operating mode according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating a method for controlling a vehicle operating mode according to another embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for controlling a vehicle operating mode according to still another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a vehicle operation mode control device according to an embodiment of the present invention;
fig. 7 is a schematic hardware configuration diagram of a vehicle operation mode control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
Fig. 1 is a schematic structural diagram of a vehicle operating mode according to an embodiment of the present invention. Taking a series hybrid electric vehicle as an example, as shown in fig. 1, a series hybrid system 1 includes an engine 11, a generator 12, a power conversion unit 13, a motor 14, and a battery pack 15, which are connected in series in sequence. The engine 11 directly drives the generator 12 to generate electricity, and the electric energy is transmitted to the battery pack 15 or the electric motor 14 through the power conversion unit 13, and the vehicle is driven by the electric motor 14.
However, in a vehicle adopting such a series hybrid system, the engine needs to be kept in a working operation state all the time, and according to the fuel characteristics of the engine, when the rotation speed of the engine is low, the fuel consumption is larger, and the power of the engine needs to be converted through a generator, a power conversion unit and other multi-stage conversion to provide electric energy for the motor, so that the energy loss is serious.
The invention provides a vehicle working mode control method, and aims to solve the technical problems in the prior art.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Fig. 2 is a schematic flow chart of a vehicle operation mode control method according to an embodiment of the present invention. As shown in fig. 2, the method includes:
s201, obtaining the current power demand information of the vehicle.
Wherein the vehicle is a hybrid vehicle.
In the present embodiment, the power demand information is information demanded by the vehicle, and may be a ratio of the current power demand value to the rated power value of the engine.
S202, comparing the power demand information with a first preset threshold value.
In this embodiment, when the power demand information is a ratio of the current power demand value to the rated power value, optionally, the first preset threshold may be set to 50%. The change curve of the fuel consumption rate of the engine along with the rotating speed of the engine is as follows: the middle part is low, the two ends are high, and the change trend of the fuel consumption rate in the interval with lower rotating speed is greater than that in the interval with higher rotating speed. According to the change curve, when the engine outputs medium power or the engine is in a medium load state, the fuel consumption is the lowest, so that the first preset threshold value is set to be 50%, whether the current power demand information of the vehicle can reach half of the rated power of the engine is determined, and the lowest fuel consumption is achieved.
S203, if the power demand information is smaller than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode.
Wherein the battery operating mode is an operating mode in which the vehicle is powered by the battery.
And S204, if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode.
Wherein the engine operating mode is an operating mode in which the vehicle is powered by the engine.
In the embodiment, taking the first preset threshold as 50% as an example, if the current power demand information of the vehicle is less than 50%, that is, the current power demand of the vehicle is less than half of the rated power of the engine, if the engine is started at this time, the fuel consumption is relatively large, so the embodiment controls the vehicle to be powered by the storage battery; if the current power demand information of the vehicle is greater than 50%, that is, the current power demand of the vehicle reaches more than half of the rated power of the engine, in order to provide sufficient power for the vehicle, the present embodiment controls the vehicle to be powered by the engine.
According to the vehicle working mode control method provided by the embodiment of the invention, the current power demand information of the hybrid vehicle is obtained, and the power demand information is compared with a first preset threshold value; if the power demand information is smaller than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode, wherein the storage battery working mode is a working mode in which a storage battery supplies power to the vehicle; and if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which the engine provides power for the vehicle. According to the embodiment of the invention, when the power demand of the vehicle is determined to be low, the storage battery provides power for the vehicle, the use of the low-speed area of the engine is reduced, energy conservation and consumption reduction are realized, and when the power demand of the vehicle is determined to be high, the engine provides power for the vehicle, so that sufficient power is provided for the vehicle.
Fig. 3 is a schematic flow chart of a vehicle operation mode control method according to another embodiment of the present invention. On the basis of the embodiment shown in fig. 2, as shown in fig. 3, the method further includes:
s205, if the power demand information is smaller than the first preset threshold value, acquiring first electric quantity information of a storage battery of the vehicle.
In the embodiment, when the power demand information is smaller than a first preset threshold, the vehicle is powered by the storage battery, and meanwhile, first electric quantity information of the storage battery is acquired. The first Charge information may be a State of Charge (SOC), where the SOC indicates a ratio of a remaining capacity of the battery after the battery is used for a certain period of time or left unused for a long time to a capacity of a fully charged State of the battery, and is indicated by 0-1, where the SOC is 0, indicating that the battery is completely discharged, and the SOC is 1, indicating that the battery is completely charged.
And S206, determining whether to control the engine to charge the storage battery or not according to the first electric quantity information and a preset control strategy.
In the present embodiment, whether to control the engine to charge the battery may be determined based on the SOC of the battery.
According to the vehicle working mode control method provided by the embodiment of the invention, the current power demand information of the hybrid vehicle is obtained, and the power demand information is compared with a first preset threshold value; and if the power demand information is smaller than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode, simultaneously acquiring the electric quantity information of a storage battery of the vehicle, and determining whether to control the engine to charge the storage battery according to the first electric quantity information and a preset control strategy. According to the embodiment of the invention, when the power demand of the vehicle is low, the storage battery is adopted to provide power for the vehicle, further, the electric quantity information of the storage battery is obtained, whether the storage battery is charged or not is determined according to the electric quantity information, and the reliability of providing power for the vehicle by the storage battery when the power demand of the vehicle is low is improved.
Fig. 4 is a schematic flow chart of a vehicle operation mode control method according to another embodiment of the present invention. On the basis of the embodiment shown in fig. 3, the specific implementation process of step S206 in this embodiment is described in detail. As shown in fig. 4, one way to implement step S206 is as follows:
s2061, comparing the first electric quantity information with a second preset threshold value.
In this embodiment, when the SOC of the first quantity of electricity information storage battery is, optionally, the second preset threshold may be set to 0.5, and the SOC value cannot be too low to ensure that the storage battery can provide power for the vehicle. In this embodiment, it is determined whether the SOC reaches 0.5, and whether the battery is in a proper state of charge.
S2062, when the first electric quantity information is smaller than the second preset threshold value, sending a charging instruction to an engine controller to control the engine to charge the storage battery; and monitoring second electric quantity information of the storage battery when the storage battery is charged by the engine.
In this embodiment, taking the second preset threshold as 0.5 as an example, when the current SOC of the battery is less than 0.5, it is described that the SOC of the battery is relatively low at this time, so in this embodiment, the engine is controlled to charge the battery, and the SOC of the battery is monitored in real time and recorded as the second electric quantity information.
And S2063, when the second electric quantity information is larger than a third preset threshold value, sending a stop instruction to an engine controller so as to stop the engine from charging the storage battery.
In this embodiment, optionally, the third preset threshold may be set to 0.8, and in order to recover energy as much as possible when the vehicle is braked, the SOC value cannot be too large, so that when the SOC of the charged storage battery monitored in real time is greater than 0.8, charging of the storage battery may be stopped, so that the SOC of the storage battery is in a suitable interval, and energy saving and emission reduction are achieved.
In the embodiment of the invention, the storage battery provides power for the vehicle after the demand information of the vehicle is smaller than the first preset threshold value, and further, the embodiment of the invention compares the electric quantity information of the storage battery with the preset threshold value to realize the timely charging of the storage battery, thereby improving the reliability of providing power for the vehicle by the storage battery when the power demand of the vehicle is low.
Fig. 5 is a schematic flow chart of a vehicle operation mode control method according to another embodiment of the present invention. On the basis of the embodiment shown in any one of fig. 2-4, the engine operation modes include a first operation mode and a second operation mode, wherein the first operation mode is that the engine provides power for the vehicle, and the second operation mode is that the engine and the storage battery provide power for the vehicle together.
Accordingly, one implementation of step S204 is as follows:
s2041, when the power demand information is larger than the first preset threshold and smaller than a fourth preset threshold, controlling the working mode of the vehicle to be in the first working mode.
In this embodiment, optionally, the fourth preset threshold may be set to 90%, for example, the first preset threshold is 50%, the fourth preset threshold is 90%, and when the power demand information is greater than 50% and less than 90%, that is, the current power demand of the vehicle is between 50% and 90% of the rated power of the engine, the engine provides power for the vehicle.
S2042, when the power demand information is larger than the fourth preset threshold value, controlling the working mode of the vehicle to be in the second working mode.
In this embodiment, taking the fourth preset threshold as 90% as an example, when the power demand information is greater than 90%, that is, when the current power demand of the vehicle is between 90% and 100% of the rated power of the engine, that is, the load of the vehicle is large, in order to ensure the normal operation of the vehicle, the engine and the battery jointly provide power for the vehicle.
According to the embodiment of the invention, by acquiring the current power demand information of the hybrid vehicle, when the power demand information is greater than the first preset threshold and less than a fourth preset threshold, the working mode of the vehicle is controlled to provide power for the vehicle for the engine, and when the power demand information is greater than the fourth preset threshold, the working mode of the vehicle is controlled to provide power for the vehicle for the engine and the storage battery together. According to the embodiment of the invention, the power required by the vehicle is judged to be in a certain interval of the rated power, and the power provided by the engine or the power provided by the engine and the storage battery together is reasonably controlled, so that the power requirement of the vehicle is met while the energy is saved and the consumption is reduced.
In addition, in the invention, the power demand information can be decomposed and converted into an engine rotating speed control instruction through a control algorithm, and the running state of the engine is adjusted at the highest response speed on the premise of ensuring the stability of the system, so that the output power of the engine can quickly track the power consumption demand of the electric drive system. For example, when the power demand information is 0% -50%, the engine does not rotate; when the power demand information is 50% -70%, the rotating speed of the engine is controlled to be 65% -75% of the rated rotating speed; when the power demand information is 70% -80%, the rotating speed of the engine is controlled to be 75% -85% of the rated rotating speed; when the power demand information is 80% -90%, the rotating speed of the engine is controlled to be 85% -95% of the rated rotating speed; when the power demand information is 90% -100%, the engine speed is controlled to be 95% -100% of the rated speed.
Fig. 6 is a schematic structural diagram of a vehicle operation mode control device according to an embodiment of the present invention. As shown in fig. 6, the vehicle operation mode control device 60 includes: an acquisition module 601, a comparison module 602, and a processing module 603.
The obtaining module 601 is configured to obtain current power demand information of a vehicle, where the vehicle is a hybrid vehicle.
A comparing module 602, configured to compare the power requirement information with a first preset threshold.
A processing module 603, configured to control an operating mode of the vehicle to be a battery operating mode if the power demand information is smaller than the first preset threshold, where the battery operating mode is an operating mode in which a battery provides power for the vehicle;
and if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which the engine provides power for the vehicle.
According to the vehicle working mode control device provided by the embodiment of the invention, the acquisition module is used for acquiring the current power demand information of the hybrid vehicle, and the comparison module is used for comparing the power demand information with a first preset threshold value; the processing module is used for controlling the working mode of the vehicle to be in a storage battery working mode if the power demand information is smaller than the first preset threshold, wherein the storage battery working mode is a working mode in which a storage battery provides power for the vehicle; and if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which the engine provides power for the vehicle. According to the embodiment of the invention, when the power demand of the vehicle is determined to be low, the storage battery provides power for the vehicle, the use of the low-speed area of the engine is reduced, energy conservation and consumption reduction are realized, and when the power demand of the vehicle is determined to be high, the engine provides power for the vehicle, so that sufficient power is provided for the vehicle.
Continuing to refer to fig. 6, optionally, the obtaining module 601 is configured to:
if the power demand information is smaller than the first preset threshold value, acquiring first electric quantity information of a storage battery of the vehicle;
the processing module 603 is configured to determine whether to control the engine to charge the storage battery according to the first electric quantity information and a preset control strategy.
Optionally, the comparing module 602 is configured to compare the first electric quantity information with a second preset threshold;
the processing module 603 is configured to:
when the first electric quantity information is smaller than the second preset threshold value, sending a charging instruction to an engine controller to control the engine to charge the storage battery; monitoring second electric quantity information of the storage battery when the storage battery is charged by the engine;
and when the second electric quantity information is larger than a third preset threshold value, sending a stop instruction to an engine controller so as to stop the engine from charging the storage battery.
Optionally, the power demand information is a ratio of a current power demand value to a rated power value; the first electric quantity information and the second electric quantity information are both the state of charge SOC of the storage battery; the first preset threshold is 50%, the second preset threshold is 0.5, and the third preset threshold is 0.8.
Optionally, the engine operating mode includes a first operating mode and a second operating mode, wherein the first operating mode is that the engine provides power for the vehicle, and the second operating mode is that the engine and the storage battery provide power for the vehicle together;
accordingly, the processing module 603 is configured to:
when the power demand information is larger than the first preset threshold and smaller than a fourth preset threshold, controlling the working mode of the vehicle to be in the first working mode;
and when the power demand information is larger than the fourth preset threshold value, controlling the working mode of the vehicle to be in the second working mode.
The vehicle working mode control device provided by the embodiment of the invention can be used for executing the method embodiment, the implementation principle and the technical effect are similar, and the detailed description is omitted here.
Fig. 7 is a schematic hardware configuration diagram of a vehicle operation mode control device according to an embodiment of the present invention. As shown in fig. 7, the present embodiment provides a vehicle operation mode control device 70 including: at least one processor 701 and a memory 702. The vehicle operation mode control device 70 further includes a communication section 703. The processor 701, the memory 702, and the communication section 703 are connected by a bus 704.
In a specific implementation, the at least one processor 701 executes computer-executable instructions stored in the memory 702 to cause the at least one processor 701 to perform the vehicle operation mode control method as described above.
For a specific implementation process of the processor 701, reference may be made to the above method embodiments, which implement principles and technical effects similar to each other, and details of this embodiment are not described herein again.
In the embodiment shown in fig. 7, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The application also provides a readable storage medium, wherein the readable storage medium stores computer-executable instructions, and when a processor executes the computer-executable instructions, the vehicle working mode control method is realized.
The readable storage medium described above may be implemented by any type of volatile or non-volatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A vehicle operation mode control method characterized by comprising:
acquiring current power demand information of a vehicle, wherein the vehicle is a hybrid vehicle, and the power demand information is the ratio of the current power demand value to a rated power value of an engine;
comparing the power demand information with a first preset threshold;
if the power demand information is smaller than the first preset threshold value, controlling the working mode of the vehicle to be in a storage battery working mode, wherein the storage battery working mode is a working mode in which a storage battery supplies power to the vehicle;
if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which an engine provides power for the vehicle;
the method further comprises the following steps:
if the power demand information is smaller than the first preset threshold value, acquiring first electric quantity information of a storage battery of the vehicle;
and determining whether to control an engine to charge the storage battery or not according to the first electric quantity information and a preset control strategy.
2. The method of claim 1, wherein determining whether to control an engine to charge the battery based on the first charge information and a preset control strategy comprises:
comparing the first electric quantity information with a second preset threshold value;
when the first electric quantity information is smaller than the second preset threshold value, sending a charging instruction to an engine controller to control the engine to charge the storage battery; monitoring second electric quantity information of the storage battery when the storage battery is charged by the engine;
and when the second electric quantity information is larger than a third preset threshold value, sending a stop instruction to an engine controller so as to stop the engine from charging the storage battery.
3. The method of claim 2, wherein the power demand information is a ratio of a current power demand value to a rated power value; the first electric quantity information and the second electric quantity information are both the state of charge SOC of the storage battery; the first preset threshold is 50%, the second preset threshold is 0.5, and the third preset threshold is 0.8.
4. The method of any of claims 1-3, wherein the engine operating modes include a first operating mode and a second operating mode, wherein the first operating mode is to power the vehicle from the engine and the second operating mode is to power the vehicle from both the engine and the battery;
the method further comprises the following steps:
when the power demand information is larger than the first preset threshold and smaller than a fourth preset threshold, controlling the working mode of the vehicle to be in the first working mode;
and when the power demand information is larger than the fourth preset threshold value, controlling the working mode of the vehicle to be in the second working mode.
5. A vehicle operation mode control device characterized by comprising:
the system comprises an acquisition module, a power control module and a power control module, wherein the acquisition module is used for acquiring current power demand information of a vehicle, the vehicle is a hybrid vehicle, and the power demand information is the ratio of a current power demand value to a rated power value of an engine;
the comparison module is used for comparing the power demand information with a first preset threshold;
the processing module is used for controlling the working mode of the vehicle to be in a storage battery working mode if the power demand information is smaller than the first preset threshold, wherein the storage battery working mode is a working mode in which a storage battery provides power for the vehicle;
if the power demand information is larger than the first preset threshold value, controlling the working mode of the vehicle to be in an engine working mode, wherein the engine working mode is a working mode in which an engine provides power for the vehicle;
the obtaining module is configured to obtain first electric quantity information of a storage battery of the vehicle if the power demand information is smaller than the first preset threshold;
and the processing module is used for determining whether to control the engine to charge the storage battery or not according to the first electric quantity information and a preset control strategy.
6. The apparatus of claim 5, wherein the comparing module is configured to compare the first power information with a second preset threshold;
the processing module is configured to:
when the first electric quantity information is smaller than the second preset threshold value, sending a charging instruction to an engine controller to control the engine to charge the storage battery; monitoring second electric quantity information of the storage battery when the storage battery is charged by the engine;
and when the second electric quantity information is larger than a third preset threshold value, sending a stop instruction to an engine controller so as to stop the engine from charging the storage battery.
7. The apparatus of claim 6, wherein the power demand information is a ratio of a current power demand value to a rated power value; the first electric quantity information and the second electric quantity information are both the state of charge SOC of the storage battery; the first preset threshold is 50%, the second preset threshold is 0.5, and the third preset threshold is 0.8.
8. The apparatus of any of claims 5 to 7, wherein the engine operating modes include a first operating mode and a second operating mode, wherein the first operating mode is for powering the vehicle by the engine and the second operating mode is for powering the vehicle by both the engine and the battery;
the processing module is configured to:
when the power demand information is larger than the first preset threshold and smaller than a fourth preset threshold, controlling the working mode of the vehicle to be in the first working mode;
and when the power demand information is larger than the fourth preset threshold value, controlling the working mode of the vehicle to be in the second working mode.
9. A vehicle operation mode control apparatus characterized by comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the vehicle operating mode control method of any of claims 1 to 4.
10. A readable storage medium, wherein the readable storage medium stores therein computer-executable instructions, which when executed by a processor, implement the vehicle operation mode control method according to any one of claims 1 to 4.
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| CN110682926B (en) * | 2019-11-05 | 2020-11-13 | 中车株洲电力机车有限公司 | Control method and device for internal electric hybrid power locomotive |
| CN111591280B (en) * | 2020-05-25 | 2021-10-29 | 潍柴动力股份有限公司 | Tandem type hybrid power output control method and device and vehicle |
| CN111663580A (en) * | 2020-06-30 | 2020-09-15 | 上海三一重机股份有限公司 | Oil-electricity power control method and device, excavator and readable storage medium |
| CN112498335A (en) * | 2020-12-15 | 2021-03-16 | 济南公共交通集团有限公司 | Plug-in hybrid power energy-saving emission-reducing operation method |
| CN114132302B (en) * | 2021-12-29 | 2024-04-16 | 潍柴动力股份有限公司 | Vehicle control method, device, system and storage medium |
| CN115539232A (en) * | 2022-09-27 | 2022-12-30 | 上汽通用五菱汽车股份有限公司 | Engine control method, engine control device, engine control equipment and storage medium |
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