CN211995079U - Hybrid vehicle thermal management system and vehicle - Google Patents

Hybrid vehicle thermal management system and vehicle Download PDF

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Publication number
CN211995079U
CN211995079U CN202020725477.7U CN202020725477U CN211995079U CN 211995079 U CN211995079 U CN 211995079U CN 202020725477 U CN202020725477 U CN 202020725477U CN 211995079 U CN211995079 U CN 211995079U
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valve
engine
loop
management system
thermal management
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CN202020725477.7U
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Chinese (zh)
Inventor
吴桐
范皓龙
蔡小刚
孙明
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Abstract

The utility model provides a hybrid vehicle thermal management system and vehicle belongs to vehicle thermal management system field, including the little circulation circuit of engine, electric heating return circuit and on-off control subassembly, the little circulation circuit of engine is connected with the engine, and the on-off control subassembly is connected respectively in little circulation circuit of engine and electric heating return circuit, and the on-off control subassembly is used for making the little circulation circuit of engine and the operation of electric heating return circuit series connection, perhaps the on-off control subassembly is used for making the little circulation circuit of engine and the parallel operation of electric heating return circuit. The utility model provides a hybrid vehicle thermal management system and vehicle for the cooling of engine can form solitary little circulation system under electricelectric moves electric heating mode, when electricelectric moves mode switches to the engine start, the temperature of engine coolant liquid can not rise, and then the phenomenon that appears engine cylinder body overtemperature after avoiding switching.

Description

Hybrid vehicle thermal management system and vehicle
Technical Field
The utility model belongs to the technical field of vehicle thermal management system, more specifically say, relate to a hybrid vehicle thermal management system and vehicle.
Background
A hybrid vehicle is a vehicle in which a vehicle drive system is combined from two or more individual drive systems that can be operated simultaneously, and the vehicle drive power is provided by the individual drive systems individually or together depending on the actual vehicle driving state. In a hybrid electric vehicle, the positions of a power battery, an engine, a passenger cabin and the like all need to control the temperature, and according to the actual use condition, a thermal management system of the hybrid electric vehicle is generally divided into a traditional power system thermal management subsystem, a low-temperature loop thermal management subsystem, a battery thermal management subsystem, a cab and a battery coordination subsystem.
The traditional power system heat management subsystem is generally divided into a large circulation and a small circulation, the whole system improves the pressure of cooling liquid through a water pump so as to enable the cooling liquid to flow in a circulating manner, a pipeline of the small circulation is generally connected with a warm air loop in series, the cooling liquid in the small circulation directly circulates in the warm air loop before the large circulation starts to work, a thermostat valve on the large circulation is gradually opened along with the rise of the temperature of an engine, the small circulation is gradually closed, and the large circulation starts to cool the engine; meanwhile, in the cab thermal management subsystem, the heating requirement of the passenger compartment is generally met by the electric heater, and the air conditioner controller adjusts the power of the PTC according to the temperature value set by the passenger compartment.
The inventor finds that in the heat management system with the conventional structure, when the automobile is in a pure electric working state, the liquid in the small circulation pipelines of the cab heat management subsystem and the conventional power system heat management subsystem is at a high temperature in a state that the electric heater is turned on, and if the temperature is switched to the engine starting state, the engine cylinder body is over-heated due to the fact that the temperature of the engine coolant is high, and the safety of the engine is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hybrid vehicle thermal management system and vehicle aims at solving.
In order to achieve the above object, the utility model adopts the following technical scheme: a hybrid vehicle thermal management system is provided, comprising:
the engine small circulation loop is connected with the engine;
an electric heating loop; and
the on-off control assembly is respectively connected with the small circulation loop of the engine and the electric heating loop;
the on-off control assembly is used for enabling the small engine circulation loop and the electric heating loop to operate in series, or the on-off control assembly is used for enabling the small engine circulation loop and the electric heating loop to operate in parallel.
As another embodiment of the application, the thermal management system of the hybrid vehicle further comprises a large engine circulation loop, the large engine circulation loop is connected with the small engine circulation loop in parallel, and the large engine circulation loop comprises a high-temperature radiator.
As another embodiment of the present application, the on-off control assembly includes a first valve, an outlet of the small engine circulation loop is communicated with a first end of the first valve, an inlet of the small engine circulation loop is communicated with a second end of the first valve, an inlet of the electric heating loop is communicated with a third end of the first valve, and an outlet of the electric heating loop is communicated with a fourth end of the first valve;
when the first end of the first valve is communicated with the second end of the first valve, the third end of the first valve is communicated with the fourth end of the first valve;
when the first end of the first valve is in communication with the third end of the first valve, the second end of the first valve is in communication with the fourth end of the first valve.
As another embodiment of the present application, the hybrid vehicle thermal management system further includes:
a battery circulation loop; and
the first inlet of the battery circulation loop is communicated with the first outlet of the heat exchanger, and the first outlet of the battery circulation loop is communicated with the first inlet of the heat exchanger;
the electric heating loop comprises an electric heater, a passenger compartment air heating device and a second valve which are sequentially connected in series, wherein the third end of the first valve is communicated with the liquid inlet of the electric heater, the second end of the second valve is communicated with the second inlet of the heat exchanger, and the third end of the second valve and the second outlet of the heat exchanger are respectively communicated with the fourth end of the first valve.
As another embodiment of the application, the hybrid vehicle thermal management system further comprises an air conditioner cooling loop and a cooler;
the air-conditioning cooling loop comprises a compressor, a condenser and an evaporator which are sequentially connected in series;
the first import of cooler with battery circulation loop's second export intercommunication, the first export of cooler with battery circulation loop's second import intercommunication, the import of compressor respectively with the export of evaporimeter with the second export intercommunication of cooler, the import of evaporimeter with the second import of cooler respectively through the control valve group with the export intercommunication of condenser.
As another embodiment of the present application, the control valve assembly includes:
a third valve disposed between the evaporator and the condenser; and
a fourth valve disposed between the cooler and the condenser.
As another embodiment of the present application, the third valve is an expansion valve and stop valve integrated valve, and the fourth valve is an electronic expansion valve.
As another embodiment of the present application, the heat exchanger and the cooler are disposed in series on the battery circulation loop.
As another embodiment of the present application, the battery circulation loop includes a water overflow tank and a power battery connected in series in sequence, an inlet of the water overflow tank is communicated with the first outlet of the cooler, and a liquid outlet of the power battery is communicated with the first inlet of the heat exchanger.
The utility model provides a hybrid vehicle thermal management system's beneficial effect lies in: compared with the prior art, the hybrid vehicle heat management system of the utility model is provided with the on-off control component between the small engine circulation loop and the electric heating loop, when the electric heating is carried out in the pure electric mode, the small engine circulation loop is controlled by the on-off control component to be independent of the electric heating loop, and the small engine circulation loop and the electric heating loop run in parallel; when the engine is required to participate in heating, the small circulation loop of the engine is controlled to be connected with the electric heating loop in series through the on-off control assembly, and the small circulation loop of the engine and the electric heating loop are connected in series to run. The utility model provides a hybrid vehicle thermal management system for the cooling of engine can form solitary little circulation system under electricelectric moves electric heating mode, when electricelectric moves the mode and switches to the engine start, the temperature of engine coolant liquid can not rise, and then avoids appearing the phenomenon that the engine cylinder body overtemperature after switching.
The utility model also provides a vehicle, including foretell hybrid vehicle thermal management system.
The utility model provides a beneficial effect of vehicle lies in: compared with the prior art, the utility model discloses the vehicle is through adopting foretell hybrid vehicle thermal management system, avoids appearing the phenomenon that the engine cylinder body overtemperature when pure electric mode switches to the engine start, improves the security of using.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a first usage state of a thermal management system of a hybrid vehicle according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a second usage state of the thermal management system of the hybrid vehicle according to the embodiment of the present invention;
fig. 3 is a schematic view showing a third usage state of the thermal management system of the hybrid vehicle according to the embodiment of the present invention;
fig. 4 is a schematic view illustrating a fourth usage state of the thermal management system of the hybrid vehicle according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a fifth usage state of the thermal management system of the hybrid vehicle according to the embodiment of the present invention;
fig. 6 is a schematic view six of a usage state of the thermal management system of the hybrid vehicle according to the embodiment of the present invention.
In the figure: 1. an engine; 2. an engine small circulation loop; 3. an engine large circulation loop; 301. a thermostat; 302. a high temperature heat sink; 4. a first water pump; 5. a first valve; 6. an electric heating loop; 601. a PTC heater; 602. a passenger compartment heater; 603. a second valve; 604. a second water pump; 7. a battery circulation loop; 701. a water overflow tank; 702. a power battery; 703. a third water pump; 8. a heat exchanger; 9. an air conditioner cooling loop; 901. a compressor; 902. a condenser; 903. an evaporator; 10. a cooler; 11. a third valve; 12. a fourth valve; 13. an electrical component heat dissipation loop; 1301. a fourth water pump; 1302. high voltage components; 1303. a drive motor; 1304. a low temperature heat sink.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6 together, a hybrid vehicle thermal management system according to the present invention will now be described. The hybrid vehicle thermal management system comprises an engine small circulation loop 2, an electric heating loop 6 and an on-off control component; the small engine circulation loop 2 is connected with the engine 1 and is mainly used for heat storage of the engine 1; the on-off control component is respectively connected with the small circulation loop 2 of the engine and the electric heating loop 6.
When the electric heating is carried out in the pure electric mode, the small engine circulation loop 2 is controlled to be independent of the electric heating loop 6 through the on-off control assembly, and the small engine circulation loop 2 and the electric heating loop 6 run in parallel; when the engine is required to participate in heating, the small engine circulation loop 2 and the electric heating loop 6 are controlled to be connected in series through the on-off control assembly, and the small engine circulation loop 2 and the electric heating loop 6 are connected in series to operate.
The utility model provides a hybrid vehicle thermal management system, at first, make the cooling of engine can form solitary little circulation system under pure electric heating mode, when pure electric mode switches to the engine start, the temperature of engine coolant liquid can not rise, and then avoids appearing the phenomenon that the engine cylinder body overtemperature after the switching; secondly, the hybrid vehicle heat management system can also enable heat generated by the engine to participate in heating circulation selection, and when the power of electric heating is insufficient, the engine is used for auxiliary heating, so that the energy consumption of electric heating is reduced, and the heating effect is optimized; and thirdly, under a low-temperature environment, by isolating the small engine circulation loop 2 and the electric heating loop 6, the heat storage function can be realized through the small circulation of the engine 1, and the working performance of the engine 1 under the low-temperature environment is improved.
As a specific implementation manner of the hybrid vehicle thermal management system, please refer to fig. 1 to 6, the on-off control assembly includes the first valve 5, the outlet of the small engine circulation loop 2 communicates with the first end V1 of the first valve 5, the inlet of the small engine circulation loop 2 communicates with the second end V2 of the first valve 5, the inlet of the electric heating loop 6 communicates with the third end V3 of the first valve 5, and the outlet of the electric heating loop 6 communicates with the fourth end V4 of the first valve 5.
In this embodiment, the hybrid vehicle thermal management system sets the first valve between the small circulation loop of the engine and the electric heating loop, and when the electric heating is performed in the pure electric mode (the engine is not started), the first end V1 of the first valve 5 is communicated with the second end V2 of the first valve, and the third end V3 of the first valve 5 is communicated with the fourth end V4 of the first valve 5, so that the small circulation loop of the engine can be independent of the electric heating loop, as shown in fig. 1 and 2.
In the hybrid state, when the engine is required to participate in heating, the first end V1 of the first valve 5 is communicated with the third end V3 of the first valve 5, and the second end V2 of the first valve 5 is communicated with the fourth end V4 of the first valve 5, as shown in fig. 3.
The on-off control assembly mainly comprises a first valve 5, the whole assembly is simple in structure, small in occupied space in the vehicle, convenient and flexible to control, and the use reliability is improved.
As a specific implementation manner of the hybrid vehicle thermal management system provided by the utility model, please refer to fig. 1 to 6, the hybrid vehicle thermal management system further includes the engine major loop 3, the engine major loop 3 is connected in parallel to the engine minor loop 2, the engine major loop 3 includes the high temperature radiator 301 for dispel the heat to the engine 1.
Specifically, a first water pump 4 is arranged at a coolant outlet of the engine 1 to provide power for a large circulation and a small circulation, and an outlet of the first water pump 4 and a coolant inlet of the engine 1 are respectively connected to the large engine circulation loop 3 and the small engine circulation loop 2 through a tee joint.
Specifically, the engine large circulation loop 3 further comprises a thermostat 301, the thermostat 301 and the high-temperature radiator 301 are sequentially connected in series, and when the engine 1 is just started and operates within a certain temperature range, the engine 1 is in a small circulation state, so that the engine can be heated as soon as possible; when the engine 1 is raised to a certain temperature, the thermostat 301 is opened, and a part of the coolant enters the large engine circulation loop 3 and a part of the coolant still stays in the small engine circulation loop 2.
As a specific embodiment of the hybrid vehicle thermal management system provided in the present invention, please refer to fig. 1 to 6, the hybrid vehicle thermal management system further includes a battery circulation loop 7 and a heat exchanger 8; a first inlet of the battery circulation loop 7 is communicated with a first outlet of the heat exchanger 8, and a first outlet of the battery circulation loop 7 is communicated with a first inlet of the heat exchanger 8; the electric heating loop 6 comprises an electric heater 601, a passenger compartment heater 602 and a second valve which are sequentially connected in series, wherein a third end V3 of the first valve 5 is communicated with a liquid inlet of the electric heater 601, a second end D2 of the second valve 603 is communicated with a second inlet of the heat exchanger 8, and a third end D3 of the second valve 603 and a second outlet of the heat exchanger 8 are respectively communicated with a fourth end V4 of the first valve 5. Wherein, the electric heater 601 is a PTC heater (positive temperature coefficient thermistor heater); a second water pump 604 is arranged between the third end V3 of the first valve 5 and the electric heater 601 to provide circulating power for the electric heating loop 6. In particular, the heat exchanger 8 is a plate heat exchanger.
By arranging the second valve 603, when the vehicle needs heating in the hybrid mode (the electric heater 601 can be opened or closed), if the engine needs to be intervened for heating, the first end V1 of the first valve 5 is controlled to be communicated with the third end V3, the second end V2 is controlled to be communicated with the fourth end V4, the cooling liquid heated by the engine 1 can pass through the first end V1 to the third end V3 of the first valve 5, heat is supplied to the passenger compartment air warming device 602 through the electric heater 601, then the cooling liquid passes through the first end D1 to the third end D3 of the second valve 603, and then flows back to the engine through the fourth end V4 to the second end V2 of the first valve 5 to complete the closed cycle, as shown in fig. 3.
If the engine is not needed to be intervened, and the power battery 702 has no heating demand, the coolant in the small engine circulation loop 2 sequentially flows through the first water pump 4, the first end V1 and the second end V2, and finally flows back to the engine 1 to form a closed circulation, and the coolant in the electric heating loop 6 sequentially flows through the second water pump 604, the electric heater 601, the passenger compartment air warming device 602, the first end D1, the third end D3, the fourth end V4 and the third end V3 to form a closed circulation.
If the power battery 702 needs heating, the second end D2 of the second valve 603 is controlled to be opened, the coolant flowing into the first end D1 of the second valve 603 flows out from the second end D2 and the third end D3 respectively, and the coolant flowing out from the second end D2 can supply heat to the battery circulation loop 7 through the heat exchanger 8, as shown in fig. 2.
Under the condition that the power battery 702 needs heating, if the power of the electric heater 601 is insufficient, the engine can be heated in an intervening manner, the coolant flows from the first end V1 to the third end V3, then flows through the second water pump 604, the electric heater 601, the passenger compartment heater 602 and the first end D1 in sequence, then flows to the second end D2 and the third end D3, the coolant flowing through the third end D3 directly flows back to the fourth end V4, then flows back to the engine 1 through the second end V2, a closed loop is formed, the coolant flowing through the second end D2 flows back to the fourth end V4 through the heat exchanger 8, and then flows back to the engine 1 through the second end V2, and a closed loop is formed, as shown in fig. 3.
In this embodiment, heat generated by the engine 1 can be used to supply heat to the passenger compartment heater 602 alone, or to supply heat to the passenger compartment heater 602 and the power battery 702 simultaneously, so that the power battery 702 can be in an optimal temperature range, the electric quantity consumption of the power battery in the working process is reduced, the pure electric endurance mileage and the discharge power of the power battery 702 can be increased in a low-temperature environment, the overall power performance of the vehicle can be improved, the quick charging characteristic of the power battery 702 at a low temperature can be improved, and the user can charge more quickly.
As a specific implementation of the embodiment of the utility model, second valve 603 is the electromagnetism proportional valve, and its use cost is low, and anti pollution performance is good, can accurately proportional control flow through the proportion of the liquid of second end D2 and third end D3, and opening and close accessible BMS control of second valve 603.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 6, the hybrid vehicle thermal management system further includes an air conditioner cooling loop 9 and a cooler 10; the air-conditioning cooling loop 9 comprises a compressor 901, a condenser 902 and an evaporator 903 which are sequentially connected in series; a first inlet of the cooler 10 is communicated with a second outlet of the battery circulation loop 7, a first outlet of the cooler 10 is communicated with a second inlet of the battery circulation loop 7, an inlet of the compressor 901 is communicated with an outlet of the evaporator 903 and a second outlet of the cooler 10 respectively, and an inlet of the evaporator 903 and a second inlet of the cooler 10 are communicated with an outlet of the condenser 902 through a control valve group respectively to form a closed circulation.
In the current motorcycle type, the position of arranging of warm braw core and evaporimeter is more close, and in the engine 1 operation process, the higher coolant liquid of temperature can flow through warm braw return circuit circulation in the microcirculation, and this has just caused the warm braw core to have higher temperature, and the heat radiation of warm braw core can lead to evaporimeter air-out temperature to rise, influences passenger cabin cooling effect, often need set up lower temperature and just can reach required cooling effect, and this has caused the increase of whole car energy consumption. In this embodiment, through isolated engine 1 of first valve 5 and electric heating loop (make first end V1 and second end V2 intercommunication of first valve 5, and third end V3 and fourth end V4 intercommunication), the thermal radiation influence of electric heater 601 and passenger cabin warm braw device 602 to the evaporimeter reduces by a wide margin, has improved the cooling effect of air conditioner, has reduced the energy consumption of vehicle simultaneously.
In addition, in this embodiment, the air-conditioning cooling circuit 9 is connected with the battery circulation circuit 7 through the cooler 10, the refrigerant can respectively flow to the evaporator 903 and the cooler 10 through the condenser 902, the evaporator 903 cools the passenger compartment, the cooler 10 is used for cooling the coolant in the power battery 702, and the control of the control valve group can select to independently cool the passenger compartment, independently cool the power battery 702, and simultaneously cool the passenger compartment and the power battery 702, so that the use flexibility is higher.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 6, the control valve set includes a third valve 11 and a fourth valve 12; a third valve 11 is provided between the evaporator 903 and the condenser 903, and a fourth valve 12 is provided between the cooler 10 and the condenser 902. By separately controlling the opening and closing of the third valve 11 and the fourth valve 12, it is possible to control whether the coolant enters the evaporator 903 or the cooler 10, and thus whether the passenger compartment or the power battery 702 is cooled. The control valve group has the advantages of simple structure distribution, convenient control, lower use cost and convenient maintenance and replacement.
As a specific implementation manner of the embodiment of the present invention, in order to adapt to the control of the flow direction of the cooling liquid, the third valve 11 is an expansion valve and stop valve integrated valve, and the fourth valve 12 is an electronic expansion valve.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 6, in order to simplify the configuration of the circulation pipeline, the heat exchanger 8 and the cooler 10 are serially connected to the battery circulation loop 7, and the heating or cooling function has more practical use and needs to be selectively opened without mutual interference.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 6, the battery circulation loop 7 includes an overflow tank 701 and a power battery 702 connected in series in sequence, an inlet of the overflow tank 701 is communicated with the first outlet of the cooler 10, and a liquid outlet of the power battery 702 is communicated with the first inlet of the heat exchanger 8. Wherein a third water pump 703 is arranged between the power battery 702 and the heat exchanger 8. Specifically, the overflow tank 701, the power battery 702, the third water pump 703, the heat exchanger 8, and the cooler 10 are connected in series in this order to form a cycle. The third water pump 703 provides circulating power for the battery circulation loop 7, and the battery circulation loop 7 has a simple structure and runs stably and reliably.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 6, the hybrid vehicle thermal management system further includes an electrical component heat dissipation loop 13, an inlet of the electrical component heat dissipation loop 13 is communicated with an outlet of the overflow tank 701, and an outlet of the electrical component heat dissipation loop 13 is communicated with an inlet of the overflow tank 701. In the embodiment, the hybrid electric vehicle thermal management system not only regulates and controls the temperature of the power battery 702, but also cools and dissipates other electrical components, so that the stability of the overall operation of the vehicle is ensured.
Specifically, the electrical component heat dissipation circuit 13 includes a high-voltage component 1302, a driving motor 1303, and a low-temperature radiator 1304, which are connected in series in sequence, wherein a liquid inlet of the high-voltage component 1302 is communicated with an outlet of the overflow tank 701, an outlet of the low-temperature radiator 1304 is communicated with an inlet of the overflow tank 701, and a fourth water pump 1301 is further disposed between the high-voltage component 1302 and the overflow tank 701. The overflow tank 701, the fourth water pump 1301, the high-voltage component 1302, the driving motor 1303 and the low-temperature radiator 1304 are connected in series in sequence to form a cycle.
Description of the operating conditions:
1) as shown in fig. 1, the large cycle and the small cycle of the engine are normally operated to form a closed cycle, respectively, the small cycle is isolated from the electric heating circuit 6, the electric heating circuit 6 forms a closed cycle, the electric heater 601 is only used as a heat source of the passenger compartment heater 602, and the battery circulation circuit 7 and the electrical component heat dissipation circuit 13 are operated to form a closed cycle, respectively.
2) As shown in fig. 2, this operation mode is similar to that of 1), and the main difference is that the electric heater 601 serves as a heat source for both the passenger compartment heater 602 and the power battery 702, and the electric heating circuit 6 forms a closed loop having parallel branches.
3) As shown in fig. 3, this operating mode is similar to that of 2), the main difference being that the small cycle of the engine is in communication with the electric heating circuit 6, and the heat generated by the engine is involved in heating the passenger compartment and the power cell 702.
4) As shown in fig. 4, the large cycle and the small cycle of the engine are normally operated to form closed cycles respectively, the small cycle is isolated from the electric heating circuit 6, the air-conditioning cooling circuit 9 is operated, the third valve 11 is opened, the fourth valve 12 is closed, the passenger compartment is cooled only by the evaporator 903, and the battery circulation circuit 7 and the electrical component heat dissipation circuit 13 are operated to form closed cycles respectively.
5) As shown in fig. 5, this operation mode is similar to the operation mode of fig. 4), and the main difference is that the third valve 11 is closed, the fourth valve 12 is opened, and the power battery 702 is cooled only by the cooler 10.
6) As shown in fig. 6, this operation mode is similar to that of 5), and the main difference is that the third valve 11 and the fourth valve 12 are simultaneously opened, and the passenger compartment is cooled by the evaporator 903, and the power battery 702 is simultaneously cooled by the cooler 10.
The utility model also provides a vehicle. The vehicle comprises the hybrid vehicle thermal management system.
The utility model provides a vehicle, through adopting foretell hybrid vehicle thermal management system, avoid appearing the phenomenon that the engine cylinder body overtemperature when pure electric mode switches to the engine start, improve the security of using.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. Hybrid vehicle thermal management system, characterized by comprising:
the engine small circulation loop is connected with the engine;
an electric heating loop; and
the on-off control assembly is respectively connected with the small circulation loop of the engine and the electric heating loop;
the on-off control assembly is used for enabling the small engine circulation loop and the electric heating loop to operate in series, or the on-off control assembly is used for enabling the small engine circulation loop and the electric heating loop to operate in parallel.
2. The hybrid vehicle thermal management system of claim 1, further comprising a large engine loop connected in parallel with the small engine loop, the large engine loop including a high temperature radiator.
3. The hybrid vehicle thermal management system of claim 1 or 2, wherein the on-off control assembly comprises a first valve, an outlet of the small engine circulation loop is communicated with a first end of the first valve, an inlet of the small engine circulation loop is communicated with a second end of the first valve, an inlet of the electric heating loop is communicated with a third end of the first valve, and an outlet of the electric heating loop is communicated with a fourth end of the first valve;
when the first end of the first valve is communicated with the second end of the first valve, the third end of the first valve is communicated with the fourth end of the first valve;
when the first end of the first valve is in communication with the third end of the first valve, the second end of the first valve is in communication with the fourth end of the first valve.
4. The hybrid vehicle thermal management system of claim 3, further comprising:
a battery circulation loop; and
the first inlet of the battery circulation loop is communicated with the first outlet of the heat exchanger, and the first outlet of the battery circulation loop is communicated with the first inlet of the heat exchanger;
the electric heating loop comprises an electric heater, a passenger compartment air heating device and a second valve which are sequentially connected in series, wherein the third end of the first valve is communicated with the liquid inlet of the electric heater, the second end of the second valve is communicated with the second inlet of the heat exchanger, and the third end of the second valve and the second outlet of the heat exchanger are respectively communicated with the fourth end of the first valve.
5. The hybrid vehicle thermal management system of claim 4, further comprising an air conditioning cooling circuit and a chiller;
the air-conditioning cooling loop comprises a compressor, a condenser and an evaporator which are sequentially connected in series;
the first import of cooler with battery circulation loop's second export intercommunication, the first export of cooler with battery circulation loop's second import intercommunication, the import of compressor respectively with the export of evaporimeter with the second export intercommunication of cooler, the import of evaporimeter with the second import of cooler respectively through the control valve group with the export intercommunication of condenser.
6. The hybrid vehicle thermal management system of claim 5, wherein the set of control valves comprises:
a third valve disposed between the evaporator and the condenser; and
a fourth valve disposed between the cooler and the condenser.
7. The hybrid vehicle thermal management system of claim 6, wherein the third valve is an expansion valve shut-off valve integral valve and the fourth valve is an electronic expansion valve.
8. The hybrid vehicle thermal management system of claim 5, wherein the heat exchanger and the cooler are disposed in series on the battery circulation loop.
9. The hybrid vehicle thermal management system of claim 5, wherein the battery circulation loop comprises a flash tank and a power battery connected in series, an inlet of the flash tank being in communication with the first outlet of the cooler, and a outlet of the power battery being in communication with the first inlet of the heat exchanger.
10. A vehicle comprising a hybrid vehicle thermal management system as set forth in any of claims 1-9.
CN202020725477.7U 2020-05-06 2020-05-06 Hybrid vehicle thermal management system and vehicle Active CN211995079U (en)

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Publication number Priority date Publication date Assignee Title
CN112519562A (en) * 2020-12-14 2021-03-19 吉林大学 Integrated thermal management system of hybrid electric vehicle
CN113119688A (en) * 2021-05-17 2021-07-16 中国第一汽车股份有限公司 Whole vehicle thermal management system of plug-in hybrid electric vehicle and control method thereof
CN113135081A (en) * 2021-05-28 2021-07-20 奇瑞汽车股份有限公司 Thermal management system, method and device for automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112519562A (en) * 2020-12-14 2021-03-19 吉林大学 Integrated thermal management system of hybrid electric vehicle
CN113119688A (en) * 2021-05-17 2021-07-16 中国第一汽车股份有限公司 Whole vehicle thermal management system of plug-in hybrid electric vehicle and control method thereof
CN113135081A (en) * 2021-05-28 2021-07-20 奇瑞汽车股份有限公司 Thermal management system, method and device for automobile

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