CN115506879A

CN115506879A - Thermal management system of vehicle and vehicle

Info

Publication number: CN115506879A
Application number: CN202210907800.6A
Authority: CN
Inventors: 余远菊; 王翀; 李小莉
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2022-12-23
Anticipated expiration: 2042-07-29
Also published as: CN115506879B

Abstract

The application relates to the technical field of vehicles, in particular to a thermal management system of a vehicle and the vehicle, wherein the system comprises: water pump for circulating coolant: the water inlet of the engine assembly is connected with the water outlet of the water pump; and the heat management assembly comprises a main cavity rotary ball valve and an auxiliary cavity rotary ball valve, the heat management assembly is respectively connected with a water outlet of the water pump and a water outlet of the engine assembly, and the heat management assembly adjusts a first opening angle of the main cavity rotary ball valve, a second opening angle of the auxiliary cavity rotary ball valve and the rotating speed of the electronic water pump according to the water temperature of the water outlet of the water pump and the water temperature of the water outlet of the engine assembly so as to cool or heat one or more of a passenger compartment, the water temperature of the engine, the oil temperature of the engine and the oil temperature of the transmission. Therefore, the problem that energy is wasted because a traditional engine cooling system cannot meet requirements under various working conditions is solved, the heat of the engine is accurately managed, cooling on demand is realized, and heat loss is avoided.

Description

Thermal management system of vehicle and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a thermal management system of a vehicle and the vehicle.

Background

During cold start, because the temperature of an air inlet system and an air cylinder is low, gasoline is difficult to atomize completely, incomplete combustion is caused, and the emission of hydrocarbon is increased. Meanwhile, the fuel evaporation is difficult, the combustion condition is poor, and the fuel quantity is unnecessarily increased and wasted. During cold starting, the temperature of cooling water and a machine body is low, heat taken away by the cooling water of the engine is increased, heat loss is increased, the engine is slowly warmed up, the temperature of a cylinder body is low, a water condensation phenomenon is easy to occur in the cylinder body, and after water and lubricating oil drops are mixed, an engine oil emulsification phenomenon (engine oil loses functions due to the fact that the cooling liquid enters the engine oil) is caused, so that the performance of the lubricating oil is reduced, the friction of internal moving components of the engine is large, and in addition, under the working conditions of medium and high speed and large load, the temperature and the pressure in a combustion chamber are high, the emission of nitrogen oxides is increased, and the problems of emission and oil consumption increase are further aggravated.

In the related art, an ECU (Electronic Control Unit) controls the coolant flowing through a coolant thermal insulation box to a Control valve to rapidly heat the engine coolant when the engine is just started, so as to shorten the engine warm-up time. The partially hot coolant of the engine is stored and used for the next cold start, the coolant temperature when the engine is cold started is improved, the vehicle warming-up time is shortened, and the engine emission and the oil consumption are reduced. The other is that through arranging a water temperature sensor and a rotary ball valve for controlling each flow path or circulation, an engine thermal management system can comprehensively consider the combustion, the pressurization, the air intake and exhaust, the cooling system and the heat transfer of an engine cabin from the whole system to control each flow path or circulation, thereby improving the thermal circulation efficiency, reducing the thermal load, controlling the limit temperature and the temperature distribution change rule of engine components and keeping the better dynamic property, the economical efficiency, the reliability and the emission performance of the engine.

However, the first solution does not involve flow distribution of coolant to multiple cooling system branches, and the second solution involves higher cost and does not consider exhaust gas recirculation.

Disclosure of Invention

The application provides a thermal management system and vehicle of vehicle to solve traditional engine cooling system and can not satisfy the requirement under each operating mode, cause the extravagant problem of energy, carry out accurate management to the engine heat, realize cooling as required, avoid calorific loss.

A first aspect of the present application provides a thermal management system for a vehicle, comprising:

a water pump for circulating the coolant; the water inlet of the engine assembly is connected with the water outlet of the water pump; and the heat management assembly comprises a main cavity rotary ball valve and an auxiliary cavity rotary ball valve, the heat management assembly is respectively connected with the water outlet of the water pump and the water outlet of the engine assembly, and the heat management assembly adjusts the first opening angle of the main cavity rotary ball valve, the second opening angle of the auxiliary cavity rotary ball valve and the rotating speed of the water pump according to the water temperature of the water outlet of the water pump and the water temperature of the water outlet of the engine assembly so as to cool or heat one or more of a passenger compartment, the water temperature of the engine, the oil temperature of the engine and the oil temperature of the transmission.

According to the technical means, the problem that a traditional engine cooling system cannot meet requirements under various working conditions and energy waste is caused can be solved, multiple active control modes can be set as required under the coupling matching of an engine water pump and a multi-runner electric control rotary ball valve, the engine is comprehensively balanced and rapidly warmed up to the maximum extent, friction is reduced, combustion is improved, heat efficiency is improved, and the optimal strategies of the purposes of reducing emission, driving comfort and the like are realized; under the working condition of a small load area, the temperature of the engine body is as high as possible so as to reduce heat transfer loss in the combustion process, thereby improving the heat efficiency and improving the energy utilization rate to the maximum extent, and the waste heat of the engine is provided for the passenger compartment to be heated through the heat exchanger so as to meet the heating use requirement of a user.

Further, the engine assembly includes: the water inlet of the cylinder body is connected with the water outlet of the water pump; the cylinder head and IEM (Integrated Exhaust Manifold), the water inlet of cylinder head and the water inlet of IEM all link to each other with the cylinder body.

According to the technical means, the active control system can set multiple active control modes as required, and improves the combustion efficiency.

Further, the thermal management assembly comprises: the main cavity shell is arranged outside the main cavity rotary ball valve, a first water inlet of the main cavity shell is connected with a water outlet of the cylinder cover, and a second water inlet of the main cavity shell is connected with a water outlet of the IEM; the auxiliary cavity shell is arranged outside the auxiliary cavity rotary ball valve, and a first water inlet of the auxiliary cavity shell is connected with a water outlet of the IEM; the actuator is integrated on the shell of the main cavity, an output shaft of the actuator is in transmission connection with the rotary ball valve of the main cavity and the rotary ball valve of the auxiliary cavity respectively, and the actuator drives the rotary ball valve of the main cavity and the rotary ball valve of the auxiliary cavity to rotate so as to adjust the flow of cooling liquid of the water return pipe of the thermal management system.

According to the technical means, the engine water pump and the multi-runner electric control rotary ball valve can be controlled as required under the coupling matching of the engine water pump and the multi-runner electric control rotary ball valve, and the emission is reduced.

Further, the thermal management assembly, further comprising: the thermostat seat is integrated in the main cavity shell and is connected with the water outlet of the cylinder body; and the temperature regulator is arranged in the temperature regulator seat and is used for regulating the flow of the cooling liquid at the water outlet of the cylinder body.

According to the technical means, the system can comprehensively balance and quickly warm up to the maximum extent, reduce friction and improve efficiency.

Further, the thermal management system of the vehicle further includes: the water pump comprises a bypass pipe and a supercharger, wherein one end of the bypass pipe and the supercharger are both connected with a water outlet of the water pump, and the other end of the bypass pipe is connected with a second water inlet of the auxiliary cavity shell; the transmission oil cooler and the engine oil cooler, wherein a water inlet of the transmission oil cooler and a water inlet of the engine oil cooler are both connected with a water outlet of the auxiliary cavity shell, and a water outlet of the engine oil cooler are both connected with a water inlet of the water pump.

According to the technical means, multiple active control modes can be set according to needs, the rapid warming-up is comprehensively balanced, and the emission is reduced.

Further, the thermal management system of the vehicle further includes:

an EGR (Exhaust Gas recirculation) cooler, wherein a water inlet of the EGR cooler is connected with a water outlet of the IEM;

the water inlet of the heating and ventilation device is connected with the water outlet of the EGR cooler, and the water outlet of the heating and ventilation device is connected with the water inlet of the water pump.

According to the technical means, multiple active control modes can be set according to needs, the rapid warming-up is comprehensively balanced, the emission is reduced, and the efficiency is improved.

Further, the thermal management system for a vehicle described above further includes: a water inlet of the radiator is connected with the first water outlet of the main shell cavity, and a water outlet of the radiator is connected with a water inlet of the water pump; and the water inlet of the circulating assembly is connected with the second water outlet of the main shell cavity, and the water outlet of the circulating assembly is connected with the water inlet of the water pump.

According to the technical means, the active control system can set multiple active control modes as required, improves the combustion efficiency and reduces the emission.

Further, wherein: the main cavity rotary ball valve comprises a first spherical valve core, wherein a main valve core water inlet butted with a main cavity shell water inlet, a main valve core water outlet butted with a main cavity shell water outlet, a main valve core bypass valve port connected with the bypass pipe, a main valve core circulation valve port connected with the circulation assembly and a main valve core radiator valve port connected with the radiator are arranged on the first spherical valve core; the auxiliary cavity rotary ball valve comprises a second spherical valve core, wherein an auxiliary valve core water inlet in butt joint with the auxiliary cavity shell water inlet, an auxiliary valve core water outlet in butt joint with the auxiliary cavity shell water outlet, an auxiliary valve core bypass valve port connected with the bypass pipe, an auxiliary valve core circulation valve port connected with the circulation assembly and an auxiliary valve core radiator valve port connected with the radiator are formed in the second spherical valve core.

Further, the thermal management system for a vehicle described above further includes: and the gas overflow port of the liquid supplementing kettle is connected with the first water inlet of the auxiliary cavity shell, and the water return pipe of the liquid supplementing kettle is connected with the water inlet of the water pump.

In a second aspect of the present application, a vehicle is provided, which includes the thermal management system of the vehicle described above.

From this, through water pump circulating cooling liquid, the water inlet of engine subassembly links to each other with the delivery port of water pump, and the thermal management subassembly includes the rotatory ball valve of main cavity and vice chamber, links to each other with the delivery port of water pump and the delivery port of engine subassembly respectively to according to the temperature of the delivery port of water pump and the temperature of the delivery port of engine subassembly, adjust the first opening angle of the rotatory ball valve of main cavity, the second opening angle of vice chamber rotatory ball valve and the rotational speed of water pump, in order to cool off or heat passenger cabin, engine water temperature, engine oil temperature and one or more in the derailleur oil temperature. Therefore, the problem that the traditional engine cooling system cannot meet the requirements under various working conditions and causes energy waste is solved, the heat of the engine is accurately managed, cooling according to needs is realized, heat loss is avoided, redundant heat in the engine is taken away through forced circulation flow of cooling liquid under the working conditions of a heavy load area, the temperature of an engine body reaches a lower level than that of a conventional cooling system, key parts of the engine are prevented from being damaged due to overheating, the knocking tendency is reduced, the heat efficiency is improved, and temperature exhaust, thickening and emission are reduced; under the working condition of a small load area, the temperature of the engine body is as high as possible so as to reduce heat transfer loss in the combustion process, thereby improving the heat efficiency and improving the energy utilization rate to the maximum extent, and the waste heat of the engine is provided for the passenger compartment to be heated through the heat exchanger so as to meet the heating use requirement of a user.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block schematic diagram of a thermal management system of a vehicle provided in accordance with an embodiment of the present application;

FIG. 2 is a schematic illustration of a thermal management system of a vehicle provided in accordance with an embodiment of the present application;

FIG. 3 is a schematic illustration of a thermal management system of a vehicle in a zero flow mode provided in accordance with an embodiment of the present application;

FIG. 4 is a schematic illustration of a thermal management system of a vehicle in a heating mode provided in accordance with an embodiment of the present application;

FIG. 5 is a schematic illustration of a thermal management system of a vehicle in a bypass pre-heat mode provided in accordance with an embodiment of the present application;

FIG. 6 is a schematic view of a thermal management system of a vehicle in an oil heating mode provided in accordance with an embodiment of the present application;

FIG. 7 is a schematic illustration of a thermal management system of a vehicle in a normal operating interval mode provided in accordance with an embodiment of the present application;

FIG. 8 is a schematic illustration of a thermal management system of a vehicle in an oil cooling mode provided in accordance with an embodiment of the present application;

FIG. 9 is a schematic illustration of a thermal management system of a vehicle in a maximum cooling mode provided in accordance with an embodiment of the present application.

Description of the reference numerals: 10-a vehicle thermal management system, 100-a water pump, 200-an engine component, 300-a thermal management component, 3-a bypass pipe, 4-a supercharger, 5-a cylinder body water jacket, 6-a cylinder cover water jacket, 7-an IEM, 8-a thermostat, 9-a thermostat seat, 10-a thermal management module main cavity shell, 11-a thermal management module auxiliary cavity shell, 12-a thermal management module, 13-an actuator, 14-an auxiliary cavity rotary ball valve, 15-a main cavity rotary ball valve, 16-a transmission oil cooler, 17-an oil cooler, 18-an EGR cooler, 19-a heating and ventilation device, 20-a radiator, 21-a small circulation rubber pipe, 22-a liquid supplement kettle, 23-a cylinder body runway, 10-1-a cylinder cover valve port, 10-2-an IEM main cavity valve port, 10-3-a radiator valve port, 10-4-a small circulation valve port, 11-1-an IEM auxiliary cavity valve port, 11-2-a bypass pipe and 11-3-an oil cooler valve port.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

A thermal management system of a vehicle of an embodiment of the present application is described below with reference to the drawings. In the system, coolant is circulated through a water pump, a water inlet of an engine assembly is connected with a water outlet of the water pump, the heat management assembly comprises a main cavity rotary ball valve and an auxiliary cavity rotary ball valve which are respectively connected with the water outlet of the water pump and the water outlet of the engine assembly, and a first opening angle of the main cavity rotary ball valve, a second opening angle of the auxiliary cavity rotary ball valve and the rotating speed of the electronic water pump are adjusted according to the water temperature of the water outlet of the water pump and the water temperature of the water outlet of the engine assembly so as to cool or heat one or more of a passenger compartment, the water temperature of the engine, the oil temperature of the engine and the oil temperature of a transmission. Therefore, the problem that the traditional engine cooling system cannot meet the requirements under various working conditions and causes energy waste is solved, the heat of the engine is accurately managed, cooling according to needs is realized, heat loss is avoided, redundant heat in the engine is taken away through forced circulation flow of cooling liquid under the working conditions of a heavy load area, the temperature of an engine body reaches a lower level than that of a conventional cooling system, key parts of the engine are prevented from being damaged due to overheating, the knocking tendency is reduced, the heat efficiency is improved, and temperature exhaust, thickening and emission are reduced; under the working condition of a small load area, the temperature of the engine body is as high as possible so as to reduce heat transfer loss in the combustion process, thereby improving the heat efficiency and improving the energy utilization rate to the maximum extent, and the waste heat of the engine is provided for a passenger compartment for heating through a heat exchanger so as to meet the heating use requirement of a user.

Specifically, fig. 1 is a schematic block diagram of a thermal management system of a vehicle according to an embodiment of the present disclosure.

As shown in fig. 1, the thermal management system 10 of the vehicle includes: water pump 100, engine assembly 200, and thermal management assembly 300.

Wherein, the water pump 100 is used for circulating cooling liquid, and the water inlet of the engine assembly 200 is connected with the water outlet of the water pump; the thermal management assembly 300 comprises a main cavity rotary ball valve and an auxiliary cavity rotary ball valve which are respectively connected with a water outlet of the water pump and a water outlet of the engine assembly 200, and a first opening angle of the main cavity rotary ball valve, a second opening angle of the auxiliary cavity rotary ball valve and the rotating speed of the water pump 100 are adjusted according to the water temperature of the water outlet of the water pump 100 and the water temperature of the water outlet of the engine assembly 200, so that one or more of a passenger compartment, the water temperature of the engine, the oil temperature of the engine and the oil temperature of the transmission can be cooled or heated.

Further, in some embodiments, as shown in fig. 2, the transmitter assembly 200 includes: a cylinder body 5, a cylinder cover 6 and an IEM7, wherein, the water inlet of the cylinder body 5 is connected with the water pump 100, the cylinder cover 6 and the IEM7 guide water from the cylinder body 5

Further, in some embodiments, as shown in FIG. 2, thermal management assembly 300 includes: a main chamber housing 10, a sub-chamber housing 11 and an actuator 13. The main cavity shell 10 is arranged outside the main cavity rotary ball valve 15, a first water inlet 10-1 of the main cavity shell 10 is connected with a water outlet of the cylinder cover 6, and a second water inlet 10-2 of the main cavity shell 10 is connected with a water outlet of the IEM 7; the auxiliary cavity shell 11 is arranged outside the auxiliary cavity rotary ball valve 14, and a first water inlet 11-1 of the auxiliary cavity shell 11 is connected with a water outlet of the IEM 7; actuator 13 is integrated on main cavity casing 10, and actuator 13's output shaft is connected with the rotatory ball valve 15 of main cavity and the rotatory ball valve 14 transmission in vice chamber respectively, and actuator 13 drives the rotatory ball valve 15 of main cavity and the rotatory ball valve 14 rotation in vice chamber to the coolant flow of adjusting thermal management subassembly 10 wet return.

Further, in some embodiments, as shown in fig. 2, the thermal management system 10 of the vehicle further includes: the oil cooler comprises a bypass pipe 3, a supercharger 4, a transmission oil cooler 18 and an engine oil cooler 17, wherein one end of the bypass pipe 3 and the supercharger 4 are both connected with a water outlet of the water pump 100, the other end of the bypass pipe 3 is connected with a second water inlet 11-2 of the auxiliary cavity shell, a water inlet of the transmission oil cooler 18 and a water inlet of the engine oil cooler 17 are both connected with a water outlet of the auxiliary cavity shell 11, and a water outlet of the engine oil cooler 17 is both connected with a water inlet of the water pump 100.

Further, in some embodiments, as shown in fig. 2, the thermal management system 10 of the vehicle further includes: the water pump comprises a radiator 20 and a circulating assembly 21, wherein a water inlet of the radiator 20 is connected with a first water outlet 10-3 of the main shell cavity, and a water outlet of the radiator 20 is connected with a water inlet of the water pump 100; the water inlet of the circulation component 21 is connected with the second water outlet of the main shell cavity by 10-4, and the water outlet of the circulation component 21 is connected with the water inlet of the water pump 100.

Further, in some embodiments, as shown in fig. 2, the thermal management system 10 of the vehicle described above, wherein: the main cavity rotary ball valve 15 comprises a first spherical valve core, the first spherical valve core is provided with a main valve core water inlet butted with a water inlet of the main cavity shell 10, a main valve core water outlet butted with a water outlet of the main cavity shell 10, a main valve core bypass valve port connected with the bypass pipe 3, a main valve core circulation valve port connected with the circulation component 21 and a main valve core radiator valve port connected with the radiator 20; the auxiliary chamber rotary ball valve 14 includes a second spherical valve core, and the second spherical valve core is provided with an auxiliary valve core water inlet butted with the auxiliary chamber shell 11 water inlet, an auxiliary valve core water outlet butted with the auxiliary chamber shell 11 water outlet, an auxiliary valve core bypass valve port connected with the bypass pipe 3, an auxiliary valve core circulation valve port connected with the circulation component 21, and an auxiliary valve core radiator valve port connected with the radiator 20.

Further, in some embodiments, as shown in FIG. 2, thermal management assembly 300, further comprises: the temperature regulator comprises a temperature regulator seat 9 and a temperature regulator 8, wherein the temperature regulator seat 9 is integrated in a main cavity shell 10, and the temperature regulator seat 9 is connected with a water outlet of the cylinder body 5; the temperature regulator 8 is arranged in the temperature regulator seat 9, and the temperature regulator 8 is used for regulating the flow of the cooling liquid at the water outlet of the cylinder body 5.

Further, in some embodiments, as shown in fig. 2, the thermal management system 10 of the vehicle further includes: an EGR cooler 18 and a warm air channel 19, wherein the water inlet of the EGR cooler 18 is connected with the water outlet of the IEM 7; the inlet of the heating and ventilating device 19 is connected with the outlet of the EGR cooler 18, and the outlet of the heating and ventilating device 19 is connected with the inlet of the water pump 100.

Further, in some embodiments, as shown in fig. 2, the thermal management system 10 for a vehicle further includes: and the air overflow port of the liquid supplementing pot 22 is connected with the first water inlet 11-1 of the auxiliary cavity shell, and the water return pipe of the liquid supplementing pot 22 is connected with the water inlet of the water pump 100.

Specifically, the engine thermal management system comprises a water pump 100, an engine assembly 200 (a cylinder body 5, a cylinder cover 6 and an IEM 7), a thermal management assembly 300 (a main cavity shell 10, a secondary cavity shell 11, a main cavity rotary ball valve 15 and a secondary cavity rotary ball valve 14), a mechanical thermostat 8, a thermostat seat 9, an oil cooler 17, a transmission oil cooler 18, a circulating assembly 21, a radiator 20, a bypass pipe 3, a supercharger 4, an EGR cooler 18, a heating and ventilation unit 19 and a liquid supplementing pot 22.

The water outlet of the water pump 100 is connected with the water inlet of the cylinder 2 of the engine 200, the inlet of the supercharger 4 and the bypass pipe 3, and the water inlet of the water pump 100 is respectively connected with the water return pipe of the branch of the heating and ventilation 19 and the branch of the speed changer oil cooler 16 after being connected through a tee joint, connected with the cold water outlet of the engine oil, connected with the circulating component pipe, connected with the water outlet of the radiator and connected with the water return pipe of the liquid supplementing pot 22.

The engine assembly 200 includes a block 5, a head 6, an IEM7. A water inlet of a cylinder body 5 is connected with a water pump 100, a cylinder cover 6 and an IEM7 guide water from the cylinder body 5, an outlet of the cylinder body 5 is connected with an electronic thermostat base 9, an outlet of the cylinder cover 6 is connected with an inlet 10-1 of a main cavity 10 of a thermal management assembly, and an outlet of the IEM7 is respectively connected with a water outlet pipe of a supercharger 4, an EGR cooler 18, an inlet 10-2 of the main cavity of the thermal management assembly, an inlet 11-1 of an auxiliary cavity of the thermal management assembly and an air overflow port of a liquid supplementing kettle 22.

The water outlet of the water pump 100 is respectively communicated with the water inlet of the engine assembly 200 and the TMM, the water outlet of the engine assembly 200 is communicated with the heat management assembly and the water inlet of the thermostat seat, the thermostat seat is integrated on the heat management assembly, the thermostat seat is communicated with the main cavity of the heat management assembly,

the heat management assembly 300 comprises a main cavity shell 10, an auxiliary cavity shell 11, a main cavity rotary ball valve 15, an auxiliary cavity rotary ball valve 14, an actuator 13, a thermostat seat 9 and a thermostat 8. The actuator 13 is integrated on the thermal management assembly housing 10, and the main and auxiliary chamber rotary ball valves are mounted in the main and auxiliary chamber housings and are in transmission connection with an output shaft of the actuator 13. A thermostat seat 9 is integrally mounted within the thermal management assembly main chamber housing 10. The shell is provided with a shell water inlet 10-1 used for being communicated with a water outlet of a water jacket of an engine cylinder cover 6, an auxiliary cavity shell 11 water inlet 11-2 used for being communicated with a bypass pipe 3, a main shell 10 water inlet 10-2 used for being communicated with a water outlet of an engine IEM7 water jacket, an auxiliary cavity shell water inlet 11-1, a main cavity shell 10 water outlet 10-3 used for being communicated with an inlet of a radiator 20, a main cavity shell 10 water outlet 10-4 used for being communicated with a circulation assembly 13, and a water outlet 11-3 used for being communicated with an engine oil cooler 17 and a transmission oil cooler 16, wherein the main cavity ball valve and the auxiliary cavity ball valve comprise spherical valve cores, and the spherical valve cores are provided with water inlets butted with the shell water inlet, a water outlet butted with the shell water outlet, a bypass valve port butted with the bypass pipe 3, a circulation assembly valve port butted with the circulation assembly pipe and a radiator valve port butted with the radiator; the actuator 13 can drive the ball valves of the main cavity and the auxiliary cavity to rotate, so that the butt joint area of a valve port of the radiator and a water inlet pipe of the radiator, the butt joint area of a valve port of a water inlet of the IEM and a water pipe of the IEM, the butt joint area of a valve port of the circulating assembly and a pipe of the circulating assembly and the butt joint area of a valve port of the bypass pipe and the bypass pipe are changed, and further the flow of cooling liquid of a bypass branch, a branch of the circulating assembly, a branch of an IEM water outlet and a water channel of the radiator is changed; the thermostat is arranged in a thermostat seat, the thermostat seat is connected with a water outlet of a water jacket of the engine cylinder body 5, and the thermostat is opened and closed according to the water temperature so as to control the flow of cooling liquid at an outlet of the cylinder body 5. In order to further understand the thermal management system of the vehicle according to the embodiment of the present application, the following detailed description is provided with reference to specific embodiments.

The electronic water pump and the engine are decoupled, multiple active control modes can be set as required under the coupling matching of the electronic water pump and the multi-runner electronic control rotary ball valve of the engine, the engine is comprehensively balanced and rapidly warmed up to the maximum extent, friction is reduced, combustion heat efficiency is improved, and emission, driving comfort and other purposes are reduced. The active control modes can be classified into the following:

1. the "0 flow" mode, as shown in FIG. 3, in which the electronic water pump is not running in the zero flow mode and the TMM is fully off.

Specifically, in a zero flow mode, the rotating speed of an electronic water pump of the engine is set to be 0, and the thermal management module rotates the ball valve assembly to set all channels in a fully closed state; in this mode, no flow occurs, and therefore, no convective heat exchange of fluid is performed, in order to raise the water temperature to the target point as quickly as possible.

2. The "heating" mode, as shown in fig. 4, in which the water pump is rotated at a low speed while ensuring that the heating flux is sufficient for heating the passenger compartment.

Specifically, in the heating mode, two conditions exist, one is that in the engine warm-up and warm air mode, in order to meet the warm air requirement, the rotating speed of an electronic water pump of the engine is determined by the heat exchange quantity and the water temperature required by the system, and a rotary ball valve of the thermal management module is set to be in a fully closed state of all channels; one mode is that in an engine stop and warm air mode, the engine stops working, the rotating speed of the electronic water pump is determined by specific warm air heat exchange requirements, the opening lift of the cylinder body temperature regulator is determined by water temperature, and the angle position of a rotary ball valve of the thermal management module is closed.

3. The "bypass preheating" mode, as shown in fig. 5, in which the engine water temperature needs to continue to rise but the cylinder head needs to cool, and when the oil temperature is not sufficient to heat the oil, the main chamber is opened to a small circulation, ensuring cooling of the cylinder head, and the water temperature continues to rise.

Specifically, in the bypass preheating mode, the rotating speed of the electronic water pump of the engine is determined by the heat exchange quantity and the water temperature required by the system and the temperature difference of water at the inlet and the outlet of the engine, the opening lift of the cylinder thermostat is determined by the water temperature of the cylinder, and the angle setting of the rotary ball valve of the thermal management module is determined by the heat exchange quantity and the water temperatures of the system.

4. The "warm oil" mode, as shown in FIG. 6, in which the water temperature reaches a certain temperature when the body warms up to a certain stage, a portion of the hot water is used to heat the transmission oil and the engine oil.

Specifically, in the oil heating mode, the temperatures of engine oil and transmission oil are mainly heated, the rotating speed of an electronic water pump of the engine is determined by the temperature difference of water at the inlet and the outlet of the engine, the opening lift of a cylinder thermostat is determined by the water temperature of a cylinder, and the angle setting of a rotary ball valve of the thermal management module is determined by the heat exchange quantity of the system and the water temperatures.

5. "Normal run Interval" mode, as shown in FIG. 7, in which the thermal management module will adjust the flow of coolant through the radiator back and forth so that the engine is always operating at an optimal water temperature.

Specifically, in a normal operation interval mode, the rotating speed of an electronic water pump of the engine is determined by the temperature difference of water at the inlet and the outlet of the engine, the opening lift of a cylinder body temperature regulator is determined by the water temperature of the cylinder body, and the angle setting of a rotary ball valve of the thermal management module is determined by the heat exchange quantity of the system and the water temperatures.

6. The "cooling oil" mode, as shown in fig. 8, switches the oil-cooled intake water to the radiator after-cooling liquid when the oil temperature is too high.

Specifically, in the oil cooling mode, the rotating speed of an electronic water pump of the engine is determined by the temperature difference of water at the inlet and the outlet of the engine, the opening lift of a cylinder thermostat is determined by the water temperature of the cylinder, and the angle setting of a rotary ball valve of the thermal management module is determined by the heat exchange amount of the system and the water temperatures.

7. In this mode, when the water temperature is too high, the ball valve of the thermal management module is switched to the angle at which the opening degree of the radiator is maximum, the cylinder thermostat is also fully opened, the water pump rotates at the maximum speed during maximum cooling, and the water pump rotates at a lower speed during shutdown cooling, so that the water temperature of the engine does not exceed the maximum limit value, as shown in fig. 9.

Specifically, in the mode of 'maximum cooling and shutdown cooling', when the electronic water pump is in the maximum cooling mode, the rotating speed of the electronic water pump of the engine is determined by the temperature difference of inlet and outlet water of the system engine, the large circulation is completely opened, the small circulation is closed, the opening lift of the cylinder body temperature regulator is determined by the water temperature of the cylinder body, and the angle setting of the rotary ball valve of the thermal management module is determined by the heat exchange amount of the system and the water temperatures. When the engine is in a 'shutdown cooling' mode, the engine stops working, the rotating speed of the electronic water pump is determined by the heat exchange quantity of the system and the water temperatures, the opening lift of the cylinder body temperature regulator is determined by the water temperatures of the cylinder body, and the angle setting of the rotary ball valve of the thermal management module is determined by the heat exchange quantity of the system and the water temperatures.

According to the thermal management system of the vehicle provided by the embodiment of the application, the cooling liquid is circulated through the water pump, the water inlet of the engine assembly is connected with the water outlet of the water pump, the thermal management assembly comprises a main cavity rotary ball valve and an auxiliary cavity rotary ball valve which are respectively connected with the water outlet of the water pump and the water outlet of the engine assembly, and the first opening angle of the main cavity rotary ball valve, the second opening angle of the auxiliary cavity rotary ball valve and the rotating speed of the electronic water pump are adjusted according to the water temperature of the water outlet of the water pump and the water temperature of the water outlet of the engine assembly, so that one or more of a passenger compartment, the water temperature of the engine, the oil temperature of the engine and the oil temperature of a transmission are cooled or heated. Therefore, the problem that the traditional engine cooling system cannot meet the requirements under various working conditions and causes energy waste is solved, the heat of the engine is accurately managed, cooling according to needs is realized, heat loss is avoided, redundant heat in the engine is taken away through forced circulation flow of cooling liquid under the working conditions of a heavy load area, the temperature of an engine body reaches a lower level than that of a conventional cooling system, key parts of the engine are prevented from being damaged due to overheating, the knocking tendency is reduced, the heat efficiency is improved, and temperature exhaust, thickening and emission are reduced; under the working condition of a small load area, the temperature of the engine body is as high as possible so as to reduce heat transfer loss in the combustion process, thereby improving the heat efficiency and improving the energy utilization rate to the maximum extent, and the waste heat of the engine is provided for the passenger compartment to be heated through the heat exchanger so as to meet the heating use requirement of a user.

In addition, the embodiment of the application also provides a vehicle, and the vehicle comprises the thermal management system of the vehicle.

According to the vehicle provided by the embodiment of the application, through the thermal management system of the vehicle, the problem that a traditional engine cooling system cannot meet requirements under various working conditions and energy is wasted is solved, the heat of the engine is accurately managed, cooling on demand is realized, and heat loss is avoided.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of implementing the embodiments of the present application.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or N wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims

1. A thermal management system for a vehicle, comprising:

a water pump for circulating the coolant;

the water inlet of the engine assembly is connected with the water outlet of the water pump; and

the heat management assembly comprises a main cavity rotary ball valve and an auxiliary cavity rotary ball valve, the heat management assembly is respectively connected with the water outlet of the water pump and the water outlet of the engine assembly, and the heat management assembly adjusts the first opening angle of the main cavity rotary ball valve, the second opening angle of the auxiliary cavity rotary ball valve and the rotating speed of the water pump according to the water temperature of the water outlet of the water pump and the water temperature of the water outlet of the engine assembly so as to cool or heat one or more of a passenger compartment, the water temperature of the engine, the oil temperature of the engine and the oil temperature of the transmission.

2. The system of claim 1, wherein the transmitter component comprises:

the water inlet of the cylinder body is connected with the water outlet of the water pump;

the cylinder cover and the exhaust manifold IEM are connected with the cylinder body.

3. The system of claim 2, wherein the thermal management assembly comprises:

the main cavity shell is arranged outside the main cavity rotary ball valve, a first water inlet of the main cavity shell is connected with a water outlet of the cylinder cover, and a second water inlet of the main cavity shell is connected with a water outlet of the IEM;

the auxiliary cavity shell is arranged outside the auxiliary cavity rotary ball valve, and a first water inlet of the auxiliary cavity shell is connected with a water outlet of the IEM;

the actuator is integrated on the shell of the main cavity, an output shaft of the actuator is in transmission connection with the rotary ball valve of the main cavity and the rotary ball valve of the auxiliary cavity respectively, and the actuator drives the rotary ball valve of the main cavity and the rotary ball valve of the auxiliary cavity to rotate so as to adjust the flow of cooling liquid of the water return pipe of the thermal management system.

4. The system of claim 3, wherein the thermal management assembly further comprises:

the thermostat seat is integrated in the main cavity shell and is connected with the water outlet of the cylinder body;

and the temperature regulator is arranged in the temperature regulator seat and used for regulating the flow of the cooling liquid at the water outlet of the cylinder body.

5. The system of claim 3, further comprising:

the water pump comprises a bypass pipe and a supercharger, wherein one end of the bypass pipe and the supercharger are both connected with a water outlet of the water pump, and the other end of the bypass pipe is connected with a second water inlet of the auxiliary cavity shell;

the transmission oil cooler and the engine oil cooler, wherein a water inlet of the transmission oil cooler and a water inlet of the engine oil cooler are both connected with a water outlet of the auxiliary cavity shell, and a water outlet of the engine oil cooler are both connected with a water inlet of the water pump.

6. The system of claim 5, further comprising:

the water inlet of the EGR cooler is connected with the water outlet of the IEM;

the heating and ventilation device comprises a heating and ventilation device, wherein a water inlet of the heating and ventilation device is connected with a water outlet of the EGR cooler, and a water outlet of the heating and ventilation device is connected with a water inlet of the water pump.

7. The system of claim 6, further comprising:

a water inlet of the radiator is connected with a first water outlet of the main shell cavity, and a water outlet of the radiator is connected with a water inlet of the water pump;

and the water inlet of the circulating assembly is connected with the second water outlet of the main shell cavity, and the water outlet of the circulating assembly is connected with the water inlet of the water pump.

8. The system of claim 7, wherein,

the main cavity rotary ball valve comprises a first spherical valve core, wherein a main valve core water inlet butted with a main cavity shell water inlet, a main valve core water outlet butted with a main cavity shell water outlet, a main valve core bypass valve port connected with the bypass pipe, a main valve core circulation valve port connected with the circulation assembly and a main valve core radiator valve port connected with the radiator are arranged on the first spherical valve core;

the auxiliary cavity rotary ball valve comprises a second spherical valve core, wherein an auxiliary valve core water inlet in butt joint with the auxiliary cavity shell water inlet, an auxiliary valve core water outlet in butt joint with the auxiliary cavity shell water outlet, an auxiliary valve core bypass valve port connected with the bypass pipe, an auxiliary valve core circulation valve port connected with the circulation assembly and an auxiliary valve core radiator valve port connected with the radiator are arranged on the second spherical valve core.

9. The system of claim 7, further comprising:

and the gas overflow port of the liquid supplementing kettle is connected with the first water inlet of the auxiliary cavity shell, and the water return pipe of the liquid supplementing kettle is connected with the water inlet of the water pump.

10. A vehicle, characterized by comprising: a thermal management system for a vehicle according to any one of claims 1 to 9.