CN113352839B - Pure electric vehicle type thermal management system and pure electric vehicle - Google Patents

Pure electric vehicle type thermal management system and pure electric vehicle Download PDF

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Publication number
CN113352839B
CN113352839B CN202010364098.4A CN202010364098A CN113352839B CN 113352839 B CN113352839 B CN 113352839B CN 202010364098 A CN202010364098 A CN 202010364098A CN 113352839 B CN113352839 B CN 113352839B
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antifreeze
way valve
communicated
battery
outlet
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CN113352839A (en
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刘志
游典
黄国平
康华东
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/143—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention provides a pure electric vehicle type heat management system and a pure electric vehicle.A heating system, a strong electric system cooling system, a battery cooling system and an air conditioning system are integrated into a high-efficiency system, so that the cooling requirements of all parts are met, and when a passenger cabin has heating and defogging requirements or a battery has heating requirements, the waste heat of the strong electric system and the waste heat of the air conditioning system can be fully utilized. The system comprises a thermal management controller, a heating system, a battery cooling system, an air conditioning system and a strong electric system cooling system, wherein a condenser in the air conditioning system adopts a water-cooled condenser, the strong electric system cooling system is used for cooling the air conditioning system, and the water-cooled condenser is adopted to enable a front end cooling module to be more compact and efficient. The system also comprises a four-way valve, a first three-way valve and a second three-way valve, and the heat management controller controls the working modes of the four-way valve and the first three-way valve and the second three-way valve to connect or disconnect the systems according to the collected cooling and heating requirements so as to exert the functions of the system components to the maximum extent.

Description

Pure electric vehicle type heat management system and pure electric vehicle
Technical Field
The invention belongs to the field of electric vehicle thermal management, and particularly relates to a pure electric vehicle type thermal management system and a pure electric vehicle.
Background
Due to the promotion of national strategy, new energy vehicles, especially pure electric vehicles, develop at a high speed in recent years, and various traditional vehicle enterprises and novel vehicle enterprises join in competition ranks. However, for the development of the heat management system of a pure electric vehicle, most vehicle types only start from meeting the requirements, but do not well enough for the waste heat utilization and energy management of the whole vehicle.
The heat management system of the new energy automobile generally comprises heat generating components such as a power battery, a driving motor, a motor controller and the like, wherein the maximum cooling liquid temperature of the components such as the driving motor, the motor controller and the like is below 65 ℃, and the optimal working temperature of the power battery is 25-45 ℃, so that the heat management system needs to meet the cooling or heating requirements of the components, and on the basis, if the system waste heat can be effectively utilized, the system power consumption can be greatly reduced.
Patent document 1[ CN 106379184 a ] discloses a cooling system for a pure electric vehicle. The thermal management system of the invention comprises an electrically driven cooling circuit and a battery cooling circuit. Although the invention can meet the cooling requirement of each heating component, the electric drive radiator and the battery radiator share the same layered radiator, thereby saving space. The circuits of the invention are completely independent, the system design has no waste heat utilization, and the design details are slightly insufficient.
Patent document 2[ CN 107298001 a ] discloses a pure electric entire vehicle thermal management system and a control method. The heat management system comprises an electric drive cooling loop, a passenger compartment refrigerating loop, a battery coolant cooling loop, a passenger compartment heating loop and a battery heating loop. The invention has the advantages that the battery loop and the heating loop can share the same PTC, but the electric drive cooling loop adopts a completely independent design, and the waste heat of the electric drive system can not be effectively utilized.
All systems of the current pure electric vehicle are mutually independent basically, when a battery needs to be heated or a passenger cabin needs to be heated, system waste heat cannot be effectively utilized, energy waste and system power consumption increase are caused, and therefore a more optimized technical scheme needs to be provided to solve the problems existing in the current pure electric vehicle type heat management system.
Disclosure of Invention
The invention provides a pure electric vehicle type heat management system and a pure electric vehicle, wherein a heating system, a strong electric system cooling system, a battery cooling system and an air conditioning system are integrated into a more efficient system, so that the maximum cooling requirement of each part can be met, and the waste heat of the strong electric system cooling system can be utilized to the maximum extent under the conditions that the battery needs to be heated and the passenger compartment has the heating requirement, so that the purposes of high efficiency and energy saving are achieved.
The technical scheme of the invention is as follows:
the invention provides a pure electric vehicle type heat management system, which comprises: the system comprises a thermal management controller, a heating system, a strong electric system cooling system, a battery cooling system and an air conditioning system, wherein a four-way valve is arranged between the strong electric system cooling system and the heating system and is used for connecting or disconnecting the strong electric system cooling system and the heating system;
a battery Heater is arranged in the battery cooling system, a first cooling liquid channel of the battery Heater is arranged in the battery cooling system, a second cooling liquid channel of the battery Heater is communicated with the heating system, and the battery Heater is used for realizing heat exchange between the battery cooling system and the heating system;
the heating system is internally provided with a first three-way valve which is arranged at the front end of the battery Heater, the rear end of the battery Heater is provided with a first three-way valve, and the first three-way valve and the battery Heater are respectively communicated with the four-way valve through the first three-way valve;
a water-cooled condenser W-cond is arranged in the air-conditioning system, a refrigerant channel of the water-cooled condenser W-cond is arranged in the air-conditioning system, a cooling liquid channel of the water-cooled condenser W-cond is communicated with the strong electric system cooling system, and the water-cooled condenser W-cond is used for realizing heat exchange between the air-conditioning system and the strong electric system cooling system; the air conditioning system is also provided with a battery cooler, a refrigerant channel of the battery cooler is arranged in the air conditioning system, a cooling liquid channel is communicated with the battery cooling system, and the battery cooler is used for realizing heat exchange between the air conditioning system and the battery cooling system; the strong electric system cooling system is also provided with a second three-way valve, and the second three-way valve is arranged on the water outlet side of a cooling liquid channel of the water-cooled condenser W-cond;
the four-way valve has two working modes: mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; and (3) mode B: the first interface is communicated with the second interface, the third interface is communicated with the fourth interface, and the four-way valve can only work in one mode in one period;
the first three-way valve and the second three-way valve are provided with one inlet and two outlets A, B, and the first three-way valve and the second three-way valve can only realize the connection of one channel in one time period;
the heat management controller connects or disconnects each system by controlling the working modes of the four-way valve, the first three-way valve and the second three-way valve, so that the functions of each part of the system are exerted to the maximum extent, and the power consumption of the system is reduced.
Preferably, the heating system includes: the system comprises a first electronic water pump, a high-voltage electric heater HVH, a first temperature sensor and a warm air core body;
the first electronic water pump, the high-voltage electric heater HVH and the first temperature sensor are in signal interaction with the thermal management controller;
an antifreeze inlet of the first electronic water pump is communicated with an antifreeze interface 3 of the four-way valve, and an antifreeze outlet of the first electronic water pump is communicated with an antifreeze inlet of the high-voltage electric heater HVH; an antifreeze outlet of the high-voltage electric heater HVH is communicated with an antifreeze inlet of the warm air core; an antifreeze liquid outlet of the warm air core body is communicated with an antifreeze liquid inlet of the first three-way valve; the antifreeze liquid outlet B of the first three-way valve is communicated with the antifreeze liquid inlet of the second cooling liquid channel of the battery Heater, and the antifreeze liquid outlet A of the first three-way valve and the antifreeze liquid outlet of the second cooling liquid channel of the battery Heater are communicated with the antifreeze liquid interface 2 of the four-way valve through the first three-way valve; the first temperature sensor is arranged at an antifreeze liquid inlet of the warm air core body and used for monitoring the temperature of antifreeze liquid in a loop formed in the battery cooling system and feeding back the temperature to the thermal management controller.
Preferably, the electric system cooling system includes: the system comprises a third electronic water pump, a strong current radiator, a motor controller, a third temperature sensor, a driving motor, a charger and a second tee joint;
the third electronic water pump, the second three-way valve and the third temperature sensor are in signal interaction with the thermal management controller;
an antifreeze liquid outlet of the third electronic water pump is communicated with an antifreeze liquid inlet of the water-cooled condenser W-cond, an antifreeze solution outlet of the water-cooled condenser W-cond is communicated with an antifreeze solution inlet of the second three-way valve, an antifreeze outlet A of the second three-way valve is communicated with an antifreeze inlet of the motor controller through the second three-way valve, an antifreeze liquid outlet B of the second three-way valve is communicated with an antifreeze liquid inlet of the strong electric radiator, an antifreeze outlet of the strong electric radiator is communicated with an antifreeze inlet of the motor controller through the second tee joint, an antifreeze outlet of the motor controller is communicated with an antifreeze inlet of the driving motor, an antifreeze outlet of the driving motor is communicated with an antifreeze inlet of the charger, and an antifreeze outlet of the charger is communicated with an antifreeze interface 4 of the four-way valve; the third temperature sensor is arranged at an antifreeze liquid inlet of the driving motor and used for monitoring the temperature of antifreeze liquid in the loop and feeding back the temperature to the thermal management controller.
Preferably, the battery cooling system includes: the second electronic water pump, the second temperature sensor, the power battery, the battery water storage bottle and the battery Heater;
the second electronic water pump and the second temperature sensor are in signal interaction with the thermal management controller;
an antifreeze solution outlet of the second electronic water pump is communicated with an antifreeze solution inlet of the power battery, an antifreeze solution outlet of the power battery is communicated with an antifreeze solution inlet of the battery cooler Chiller, an antifreeze solution outlet of the battery cooler Chiller is communicated with an antifreeze solution inlet of a first cooling solution channel of the battery Heater, an antifreeze solution outlet of the first cooling solution channel of the battery Heater is communicated with an antifreeze solution inlet of the battery water storage bottle, and an antifreeze solution outlet of the battery water storage bottle is communicated with an antifreeze solution inlet of the second electronic water pump; the second temperature sensor is arranged at an antifreeze liquid inlet of the power battery and used for monitoring the temperature of antifreeze liquid in the loop and feeding back the temperature to the thermal management controller.
Preferably, the air conditioning system includes: the system comprises an electric compressor, a first expansion valve, a second expansion valve, an evaporator, a water-cooled condenser W-cond and a battery cooler Chiller;
the first expansion valve, the second expansion valve and the electric compressor are in signal interaction with the thermal management controller;
the refrigerant outlet of the electric compressor is communicated with the refrigerant inlet of the water-cooled condenser W-cond, the refrigerant outlet of the water-cooled condenser W-cond is respectively communicated with the refrigerant inlet of the first expansion valve and the refrigerant inlet of the second expansion valve, the refrigerant outlet of the first expansion valve is communicated with the refrigerant inlet of the evaporator, the refrigerant outlet of the second expansion valve is communicated with the refrigerant inlet of the battery cooler Chiller, and the refrigerant outlets of the evaporator and the battery cooler Chiller are communicated with the refrigerant inlet of the electric compressor.
Preferably, the system further comprises: and an antifreeze inlet of the water storage bottle is respectively communicated with an antifreeze outlet of the strong current radiator and an antifreeze outlet of the heating system, and an antifreeze outlet of the water storage bottle is respectively communicated with an antifreeze inlet of the first electronic water pump of the heating system and an antifreeze inlet of the third electronic water pump of the strong current cooling system.
Preferably, the system has at least the following modes of operation:
in the first mode, under the low-temperature condition, when the whole vehicle is in a running mode, the power battery has a heating demand and the passenger compartment has a heating demand, the high-voltage electric heater HVH is used for heating the power battery and heating the passenger compartment: the heat management controller controls the first electronic water pump and the second electronic water pump to be started; controlling the starting of a high-voltage electric heater HVH; controlling the first three-way valve to be communicated with the outlet B; controlling the four-way valve to be in a mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; controlling the second expansion valve to close;
and in a second mode, under the low-temperature condition, the whole vehicle is in a running mode, when the power battery has a heating demand and the passenger cabin has a heating demand, the waste heat of the strong electric system cooling system is utilized to heat the power battery and heat the passenger cabin: the thermal management controller controls the first electronic water pump, the second electronic water pump and the third electronic water pump to be started; controlling the first three-way valve to be communicated with an outlet B; controlling the four-way valve to be in a mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve to be communicated with an outlet A; controlling the second expansion valve to close;
and in a third mode, under the low-temperature condition, when the whole vehicle is in a running mode, the power battery has a heating demand and the passenger cabin has a heating demand, the waste heat of the strong electric system cooling system and the HVH (high voltage electric heater) are jointly used for heating the power battery and heating the passenger cabin: the thermal management controller controls the first electronic water pump, the second electronic water pump and the third electronic water pump to be started; controlling the high-voltage electric heater HVH to start; controlling the first three-way valve to be communicated with an outlet B; controlling the four-way valve to be in a mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve to be communicated with an outlet A; controlling the second expansion valve to close;
and in a fourth mode, when the whole vehicle is in a running mode, the passenger compartment has heating or defogging requirements, and the air conditioning system works, the waste heat generated by the air conditioning system is utilized for heating or defogging the passenger compartment: the thermal management controller controls the first electronic water pump and the third electronic water pump to be started, and controls the first three-way valve to be communicated with an outlet A; controlling the four-way valve to be in a mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve to be communicated with an outlet A;
and a fifth mode, when the whole vehicle is in a running mode, the power battery has a cooling demand and the strong electric system cooling system has a cooling demand, the strong electric radiator is used for cooling the strong electric system cooling system and the air conditioning system is used for cooling the power battery: the thermal management controller controls the second electronic pump and the third electronic pump to start; controlling the first three-way valve to be communicated with an outlet A; controlling the four-way valve to be in a mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; controlling the second three-way valve to be communicated with an outlet B; controlling the second expansion valve to open;
and in a sixth mode, when the whole vehicle is in a charging mode and the charger needs to be cooled, the strong electric radiator is utilized for cooling the charger: the thermal management controller controls the third electronic water pump to start; controlling the four-way valve to be in a mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; and controlling the second three-way valve to be communicated with the outlet B.
Preferably, the system further comprises:
the battery radiator, the third three-way valve and the third three-way valve are used for cooling the power battery;
the third three-way valve is provided with a water inlet and two outlets A, B, and only one channel can be communicated by the third three-way valve in one time period;
an antifreeze liquid outlet B of the third three-way valve is communicated with an antifreeze liquid inlet of the battery radiator;
an antifreeze solution inlet of the third three-way valve is communicated with an antifreeze solution outlet of the power battery, an antifreeze solution outlet A of the third three-way valve is communicated with an antifreeze solution inlet of the battery radiator, an antifreeze solution outlet B of the third three-way valve is communicated with an antifreeze solution inlet of the battery cooler Chiller, and the antifreeze solution outlet of the battery radiator and the antifreeze solution outlet of the battery cooler Chiller are both communicated with the antifreeze solution inlet of the battery Heater through the third three-way valve;
the third three-way valve is in signal interaction with the thermal management controller.
The invention also provides a pure electric vehicle which comprises the pure electric vehicle type heat management system.
The invention has the beneficial effects that:
according to the invention, a heating system, a strong electric system cooling system, a battery cooling system and an air conditioning system are integrated into a more efficient heat management system by adopting the four-way valve, the battery Heater and the battery cooler, and the design is carried out according to the cooling requirements of different parts, so that the maximum cooling requirement of each part can be met, and the waste heat of the strong electric system cooling system can be utilized to the maximum extent under the conditions that the battery needs to be heated and the passenger compartment needs to be heated; the condenser in the air-conditioning system adopts a water-cooled condenser W-cond, the cold side of the water-cooled condenser is arranged in a strong electric system cooling system, the strong electric system cooling system can be used for cooling the air-conditioning system, waste heat of the air-conditioning system is recovered for defogging or battery heating, and a front-end cooling module behind the water-cooled condenser is more compact and efficient. According to the cooling requirement of the power battery, the pure electric vehicle type thermal management system can cool the battery by using an air conditioning system and can also cool the air conditioning system by using a strong electric system cooling system; when the passenger compartment has heating and defogging requirements or the battery has heating requirements, the circuit can be switched by the four-way valve, the waste heat of the heavy-current system cooling system, the waste heat of the air conditioning system or the HVH (high voltage electric heater) can be fully utilized for heating, defogging or battery heating of the passenger compartment, the functions of system components can be exerted to the maximum extent, the waste heat of the system can be effectively utilized, the power consumption of the system is reduced, and the driving range is increased.
The pure electric vehicle type heat management system can adapt to different pure electric vehicle types through adjustment, but no matter how the pure electric vehicle type heat management system evolves, the core of the system is to maximize the utilization of system waste heat and maximize the efficiency of parts, and the purposes of improving the efficiency and reducing the power consumption are achieved.
Drawings
FIG. 1 is a schematic diagram of a thermal management system in a first embodiment;
FIG. 2 is a schematic diagram of a thermal management system in a second embodiment;
FIG. 3 is a schematic front end module diagram of the first embodiment;
fig. 4 is a schematic diagram of a front-end module of a second embodiment.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Referring to fig. 1 and 3, a first embodiment of the present invention provides a pure electric vehicle type thermal management system, where the system includes a thermal management controller, a heating system, a battery cooling system, an air conditioning system, and a strong electric system cooling system, and a four-way valve V2 is disposed between the strong electric system cooling system and the heating system, and is used for connecting or disconnecting the strong electric system cooling system and the heating system; a battery Heater4 is arranged in the battery cooling system, a first cooling liquid channel of the battery Heater4 is arranged in the battery cooling system, a second cooling liquid channel is communicated with the heating system, and the battery Heater4 is used for realizing heat exchange between the battery cooling system and the heating system so as to heat the power battery 6; a first three-way valve V1 is arranged in the heating system, the first three-way valve V1 is arranged at the front end of the battery Heater4, a first three-way valve 20 is arranged at the rear end of the battery Heater4, and the first three-way valve V1 and the battery Heater4 are respectively communicated with the four-way valve V2 through the first three-way valve 20; the air conditioning system is internally provided with a water-cooled condenser W-cond10, a refrigerant channel of the water-cooled condenser W-cond10 is communicated with the strong electric system cooling system in the air conditioning system, and the water-cooled condenser W-cond10 is used for realizing heat exchange between the air conditioning system and the strong electric system cooling system; the air conditioning system is also provided with a battery cooler Chiller7, a refrigerant channel of the battery cooler Chiller7 is arranged in the air conditioning system, a cooling liquid channel is communicated with the battery cooling system, and the battery cooler Chiller7 is used for realizing heat exchange between the air conditioning system and the battery cooling system; the strong electric system cooling system is also provided with a second three-way valve V3, and the second three-way valve V3 is arranged on the water outlet side of a cooling liquid channel of the water-cooled condenser W-cond 10;
the four-way valve V2 has two working modes: mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; and (3) mode B: the first interface is communicated with the second interface, the third interface is communicated with the fourth interface, and the four-way valve V2 can only work in one mode in one time period; the first three-way valve V1 and the second three-way valve V3 both have one inlet and two outlets A, B, and the first three-way valve V1 and the second three-way valve V3 can only realize one channel connection in one period; the thermal management controller connects or disconnects each system by controlling the working modes of the four-way valve V2, the first three-way valve V1 and the second three-way valve V2, thereby exerting the functions of each part of the system to the maximum extent and reducing the power consumption of the system.
The requirements of battery cooling and heating are met through two plate heat exchangers of a battery cooler Chiller7 and a battery Heater 4; the condenser in the air-conditioning system adopts a water-cooled condenser W-cond10, a cooling liquid channel of the water-cooled condenser W-cond10 is communicated with a strong electric system cooling system, the strong electric system cooling system can be used for cooling the water-cooled condenser W-cond10 of the air-conditioning system, or waste heat of the air-conditioning system is recovered for demisting or heating a power battery, and a front-end cooling module after the water-cooled condenser W-cond10 is adopted is more compact and efficient.
According to the cooling requirement of the power battery 6, the pure electric vehicle type thermal management system can utilize an air-conditioning system to cool the battery and also can utilize a strong electric system cooling system to cool the air-conditioning system; when the passenger compartment has heating and defogging requirements or the battery has heating requirements, a loop can be switched by the four-way valve V2, the waste heat of a strong electric system cooling system, the waste heat of an air conditioning system or the HVH1 is fully utilized for heating, defogging or battery heating of the passenger compartment, the functions of system components can be exerted to the maximum extent, the waste heat of the system is effectively utilized, the power consumption of the system is reduced, and the driving range is increased.
In the embodiment, the working states of the first three-way valve V1, the four-way valve V2 and the second three-way valve V3 are controlled, so that the battery cooling system, the heating system, the air conditioning system and the high-voltage system cooling system in the embodiment form a loop meeting different specific requirements, the power battery 6 is heated by using waste heat generated by the high-voltage system cooling system and heat generated by heating of the high-voltage electric heater HVH1, and the hot air core 3 is heated by using waste heat generated by the air conditioning system, waste heat generated by the high-voltage system cooling system and heat generated by heating of the high-voltage electric heater HVH 1; wherein, the specific means for supplying heat by using the above waste heat, waste heat or heat generated by heating is described in detail later; meanwhile, in the present embodiment, the power battery 6 may also be cooled by an air conditioning system, and a cooling manner may also be provided for the air conditioning system with a cooling requirement according to the strong electric radiator 14 in the strong electric cooling system, and a cooling means for implementing the power battery 6 and the air conditioning system will also be described in detail later.
As shown in fig. 1, for the heating system in this embodiment, it specifically includes:
the system comprises a first electronic water pump P1, a high-voltage electric heater HVH1, a first temperature sensor 2 and a warm air core body 3;
the first electronic water pump P1, the high-voltage electric heater HVH1 and the first temperature sensor 2 are in signal interaction with the thermal management controller;
an antifreeze liquid inlet of the first electronic water pump P1 is communicated with an antifreeze liquid interface III of the four-way valve V2, and an antifreeze liquid outlet of the first electronic water pump P1 is communicated with an antifreeze liquid inlet of the high-voltage electric heater HVH 1; the antifreeze liquid outlet of the high-voltage electric heater HVH1 is communicated with the antifreeze liquid inlet of the warm air core body 3; the antifreeze liquid outlet of the warm air core body 3 is communicated with the antifreeze liquid inlet of the first three-way valve V1; an antifreeze liquid outlet B of the first three-way valve V1 is communicated with an antifreeze liquid inlet of a second cooling liquid channel of the battery Heater4, and an antifreeze liquid outlet A of the first three-way valve V1 and an antifreeze liquid outlet of a second cooling liquid channel of the battery Heater4 are communicated with an antifreeze liquid interface II of the four-way valve V2 through the first three-way valve 20; the first temperature sensor 2 is arranged at an antifreeze liquid inlet of the warm air core body 3 and used for monitoring the temperature of antifreeze liquid in a loop formed in a battery cooling system and feeding back the temperature to the thermal management controller.
As shown in fig. 1, the first temperature sensor 2 is provided between the high voltage electric heater HVH1 and the heater core 3, and measures the temperature of the antifreeze passing through the high voltage electric heater HVH1 and feeds back the temperature to the thermal management controller. The antifreeze enters a loop of the heating system from a tee joint arranged in front of the first electronic water pump P1 and is pumped into the high-voltage electric heater HVH1 by the first electronic water pump P1. And the thermal management controller selectively enables the high-voltage electric heater HVH1 to start heating the antifreeze solution or enables the high-voltage electric heater HVH1 to be switched off according to requirements. For the thermal management controller, when a user inputs a heating demand in the passenger compartment, the air door corresponding to the warm air core body 3 is opened (warm air can flow into the passenger compartment from the position of the air door).
The starting condition of the high-voltage electric heater HVH1 is that the current temperature (such as below 0 ℃) of the power battery 6 is smaller than the optimal working temperature range (such as 25 ℃ -45 ℃) of the power battery, and the difference value between the minimum value (25 ℃) of the optimal working temperature range (25 ℃ -45 ℃) of the power battery 6 and the current temperature (such as 0 ℃) of the power battery 6 is smaller than the set first difference value (such as 25 ℃), and then the thermal management controller controls the high-voltage electric heater HVH1 to start.
As shown in fig. 1, the battery cooling system includes: the second electronic water pump P2, the second temperature sensor 5, the power battery 6, the battery water storage bottle 8 and the battery Heater 4;
the second electronic water pump P2 and the second temperature sensor 5 are in signal interaction with the thermal management controller;
an antifreeze solution outlet of the second electronic water pump P2 is communicated with an antifreeze solution inlet of the power battery 6, an antifreeze solution outlet of the power battery 6 is communicated with an antifreeze solution inlet of the battery cooler Chiller7, an antifreeze solution outlet of the battery cooler Chiller7 is communicated with an antifreeze solution inlet of a first cooling solution channel of the battery Heater4, an antifreeze solution outlet of a first cooling solution channel of the battery Heater4 is communicated with an antifreeze solution inlet of the battery water bottle 8, and an antifreeze solution outlet of the battery water bottle 8 is communicated with an antifreeze solution inlet of the second electronic water pump P2; the second temperature sensor 5 is arranged at an antifreeze liquid inlet of the power battery 6 and used for monitoring the temperature of antifreeze liquid in a loop and feeding back the temperature to the thermal management controller.
For the power battery 6, the following heat sources are used for heating the power battery: the heating requirement is met by utilizing waste heat generated when the air conditioning system is started, the waste heat of a strong electric system cooling system is utilized for heating, the heating requirement is met by utilizing the high-voltage electric heater HVH1 for heating, and two or more heating modes in the heating modes can be utilized for mixed heating based on the requirement. The selection of the heating method for the power battery 6 is determined according to the current temperature range of the power battery 6. The first condition is that: when the temperature (such as below 0 ℃) of the power battery 6 is much lower than the optimal working temperature range (such as 25 ℃ -45 ℃), a high-voltage electric heater HVH1 is adopted to heat the power battery; after the high-voltage electric heater HVH1 is heated for a period of time, if the temperature of the antifreeze collected by the second temperature sensor 5 rises to a certain temperature, the power of the high-voltage electric heater HVH1 is reduced, and the residual heat of the strong electric system cooling system is combined to heat the power battery 6. The second condition is: if the temperature of the power battery 6 (such as between 0 ℃ and 25 ℃) is not much lower than the optimal working temperature range (such as between 25 ℃ and 40 ℃), the power battery 6 is heated by using the waste heat of the electric system cooling system.
When the power battery 6 has a cooling requirement, the cooling method comprises the following steps: the antifreeze flowing into the battery cooler Chiller7 is cooled by the refrigerant flowing into the refrigerant channel of the battery cooler Chiller7 when the air conditioning system is started, and the power battery 6 is cooled.
For the battery cooling system, because the difference between the optimal operating temperature of the power battery 6 and the optimal operating temperature of the electric drive module in other strong electric system cooling systems is large (for example, the highest cooling liquid temperature of the components such as the drive motor 17 and the motor controller 15 is below 65 ℃, and the optimal operating temperature of the power battery 6 is 25-45 ℃), the antifreeze solution initially flowing to the power battery 6 is stored separately by the battery water storage bottle 8 storing the antifreeze solution.
As shown in fig. 1, the air conditioning system includes: the electric compressor 9, the water-cooled condenser W-cond10, the first expansion valve 11, the second expansion valve 12, the evaporator 13, the water-cooled condenser W-cond10 and the battery cooler Chiller 7; the first expansion valve 11, the second expansion valve 12 and the electric compressor 9 are in signal interaction with the thermal management controller;
the refrigerant outlet of the electric compressor 9 is communicated with the refrigerant inlet of the water-cooled condenser W-cond10, the refrigerant outlet of the water-cooled condenser W-cond10 is communicated with the refrigerant inlet of the first expansion valve 11 and the refrigerant inlet of the second expansion valve 12, the refrigerant outlet of the first expansion valve 11 is communicated with the refrigerant inlet of the evaporator 13, the refrigerant outlet of the second expansion valve 12 is communicated with the refrigerant inlet of the battery cooler Chiller7, and the refrigerant outlets of the evaporator 13 and the battery cooler Chiller7 are communicated with the refrigerant inlet of the electric compressor 9.
For the air conditioning system in the present embodiment, the power battery 6 or the warm air core 3 may be heated by waste heat generated when the air conditioning system operates, or the power battery 6 may be cooled by a cooling effect in the air conditioning system.
When the air conditioning system is used for cooling the power battery 6, the flow of the refrigerant flowing to the battery cooler Chiller7 is increased by adjusting the second expansion valve 12 connected with the battery cooler Chiller7, so that the battery cooler Chiller7 has a good heat exchange effect, and the power battery 6 is cooled by the air conditioning system.
As shown in fig. 1, the electric system cooling system includes: a third electronic water pump P3, a strong electric radiator 14, a motor controller 15, a third temperature sensor 16, a driving motor 17, a charger 18 and a second tee joint 21;
the third electronic water pump P3, the second three-way valve V3 and the third temperature sensor 16 are in signal interaction with the thermal management controller;
an antifreeze liquid outlet of the third electronic water pump P3 is communicated with an antifreeze liquid inlet of the water-cooled condenser W-cond10, the antifreeze liquid outlet of the water-cooled condenser W-cond10 is communicated with the antifreeze liquid inlet of the second three-way valve V3, the antifreeze outlet a of the second three-way valve V3 is communicated with the antifreeze inlet of the motor controller 15 through the second three-way valve 21, the antifreeze outlet B of the second three-way valve V3 is communicated with the antifreeze inlet of the strong electric radiator 14, the antifreeze outlet of the strong electric radiator 14 is communicated with the antifreeze inlet of the motor controller 15 through the second tee joint 21, the antifreeze outlet of the motor controller 15 is communicated with the antifreeze inlet of the driving motor 17, an antifreeze outlet of the driving motor 17 is communicated with an antifreeze inlet of the charger 18, an antifreeze outlet of the charger 18 is communicated with an antifreeze interface IV of the four-way valve V2; the third temperature sensor 16 is arranged at an antifreeze inlet of the driving motor 17, and is used for monitoring the temperature of antifreeze in a loop and feeding back the temperature to the thermal management controller.
As in fig. 1, the system further comprises: and an antifreeze inlet of the water storage bottle 19 is respectively communicated with the antifreeze outlet of the strong electric radiator 14 and the antifreeze inlet of the heating system, and an antifreeze outlet of the water storage bottle 19 is respectively communicated with the antifreeze inlet of the first electronic water pump P1 of the heating system and the antifreeze inlet of the third electronic water pump P3 of the strong electric cooling system.
The four-way valve V2, the first three-way valve V1, the second three-way valve V3, the battery Heater4 and the battery cooler Chiller7 are adopted to integrate a heating system, a strong electric system cooling system, a battery cooling system and an air conditioning system into a more efficient heat management system, the design is carried out according to the cooling requirements of different parts, the maximum cooling requirement of each part can be met, and the waste heat of each part can be utilized to the maximum extent under the conditions that the battery needs to be heated and the passenger compartment needs to be heated; the condenser in the air-conditioning system adopts a water-cooled condenser W-cond10, the cold side of the water-cooled condenser W-cond10 is in a strong electric system cooling system, the strong electric system cooling system can be used for cooling the air-conditioning system, waste heat of the air-conditioning system is recovered for defogging or battery heating, and a front end cooling module after the water-cooled condenser W-cond10 is adopted is more compact and efficient. The pure electric vehicle type heat management system can utilize an air conditioning system to cool a power battery according to the cooling requirement of a battery cooling system; when the passenger compartment has heating and defogging requirements or the power battery 6 has heating requirements, a loop can be switched by the four-way valve V2, the waste heat of a strong electric system cooling system, the waste heat of an air conditioning system or the HVH1 is fully utilized to heat the passenger compartment, defogging or power battery 6, the functions of system components can be exerted to the maximum extent, the waste heat of the system is effectively utilized, the power consumption of the system is reduced, and the driving range is increased.
Specifically, the thermal management controller controls the connection and disconnection of each loop by controlling the first three-way valve V1, the second three-way valve V3 and the four-way valve V2, so as to exert the functions of parts and utilize the waste heat of the system to the maximum extent, reduce the power consumption of the system, and simultaneously, each control valve feeds back signals to the thermal management controller, so as to realize real-time control. The first three-way valve V1 and the second three-way valve V3 both have a water inlet and two outlets A, B, and the three-way valves can only realize the connection of one channel, namely V-A or V-B in one period; the four-way valve V2 has two modes, one mode is that the first interface is connected with the 4, 2 and 3, the second mode is that the first interface is connected with the 2, 3 and 4, and the four-way valve can only work in a fixed mode for a period of time.
For the thermal management system in the embodiment of the present invention, at least six operation modes are provided.
Next, with reference to table 1 above, the operation mode of the thermal management system in this embodiment is described, where the system at least includes the following operation modes:
in the first working mode, when the whole vehicle is in a running mode, the power battery 6 needs heating and the passenger compartment needs heating under a low temperature condition, the high-voltage electric heater HVH1 is used for heating the power battery 6 and heating the passenger compartment: the thermal management controller controls the first electronic water pump P1 and the second electronic water pump P2 to be started; controlling the high-voltage electric heater HVH1 to start; controlling a first three-way valve V1 to be communicated with the outlet B; controlling the four-way valve V2 to be in a mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; the second expansion valve 12 is controlled to close.
In the operating mode, when the heat demand of the power battery 6 is a high priority demand, that is, the temperature of the power battery 6 (e.g., below 0 ℃) is much lower than the optimum operating temperature range (e.g., 25 ℃ -45 ℃), in order to enable the power battery 6 to be rapidly heated to the normal operating mode, rapid heating is performed by the high voltage electric heater HVH 1.
When the passenger cabin has heat supply or heating demand, the passenger enters a heating mode by performing related key operation in the passenger cabin. The antifreeze is pumped into a high-voltage electric heater HVH1 under the action of a first electronic water pump P1, the heated antifreeze flows to a warm air core body 3, and air enters a passenger cabin after being heated by the warm air core body 3 to heat the passenger cabin; meanwhile, the antifreeze flows out of the battery water storage bottle 8, flows in the power battery cooling system through the suction of the second electronic water pump P2, flows to the first cooling liquid channel of the battery Heater4, flows to the second cooling liquid channel of the battery Heater4 together with the antifreeze in the heating system, exchanges heat through the battery Heater4, and further heats the antifreeze in a loop in the battery cooling system, so that the effect of heating the power battery 6 is achieved. That is, in the first mode, the antifreeze solution heated by the high voltage Heater HVH1 can supply heat to the heating system and the battery cooling system at the same time by the heat exchange action of the warm air core 3 and the battery Heater 4.
In the first operation mode, for the high electric system cooling system, the thermal management controller may control the operation state of the second three-way valve V3 according to the presence or absence of the cooling demand of the high electric system cooling system. Specifically, when the strong electric system cooling system has a cooling demand, the thermal management controller starts the third electronic water pump P3, controls the second three-way valve V3 to be communicated with the antifreeze liquid outlet B, cools the antifreeze liquid entering the strong electric radiator 14 through the suction inlet loop of the third electronic water pump P3, further flows to the motor controller 15, the driving motor 17 and the charger 18 to cool the electric driving modules, and finally flows back to the third electronic water pump P3 through the four-way valve V2 to form an antifreeze liquid cooling loop in the strong electric system cooling system. The thermal management controller can judge the cooling effect on the high-power system cooling system by combining the temperature detected by the third temperature sensor 16, and reasonably control the cooling time.
When the thermal management controller does not detect the cooling demand of the strong electric system cooling system, the thermal management controller controls the third electronic water pump P3 to be closed.
Wherein, under the operating mode, the return circuit that forms in the heating system specifically is: an antifreeze outlet of the first electronic water pump P1 is communicated with an antifreeze inlet of a high-voltage electric Heater HVH1, an antifreeze outlet of a high-voltage electric Heater HVH1 is communicated with an antifreeze inlet of the warm air core 3, an antifreeze outlet of the warm air core 3 is communicated with an antifreeze inlet of a first three-way valve V1, a first three-way valve V1 is communicated with an outlet B, an antifreeze outlet B of a first three-way valve V1 is communicated with an antifreeze inlet of a battery Heater4, an antifreeze outlet of the battery Heater4 is communicated with a first three-way valve 20 and is communicated with a second interface of a four-way valve V2 through the first three-way valve 20, a second interface of the four-way valve V2 is communicated with a third interface, and a third interface of the four-way valve V2 is communicated with an antifreeze inlet of an electronic water pump P1.
The circuit formed in the battery cooling system is: an antifreeze outlet of the second electronic water pump P2 is communicated with an antifreeze inlet of the power battery 6, an antifreeze outlet of the power battery 6 is communicated with an antifreeze inlet of a cooling liquid channel of the battery cooler Chiller7, an antifreeze outlet of the cooling liquid channel of the battery cooler Chiller7 is communicated with an antifreeze inlet of a first cooling liquid channel of the battery Heater4, an antifreeze outlet of the first cooling liquid channel of the battery Heater4 is communicated with an antifreeze inlet of the battery water bottle 8, and an antifreeze outlet of the battery water bottle 8 is communicated with an antifreeze inlet of the second electronic water pump P2.
Whether a loop is formed in the high-power system or not is operated according to the requirement, and at the moment, the third three-way valve V3 is connected with the outlet A or B according to the requirement.
Working mode two, under the low temperature condition, whole car be in the mode of traveling power battery 6 has the heating demand and when passenger cabin has the heating demand, utilizes the waste heat of heavy current system cooling system does power battery 6 heats and for passenger cabin heating: the thermal management controller controls the first electronic water pump P1, the second electronic water pump P2 and the third electronic water pump P3 to be started; controlling the first three-way valve V1 to switch on the outlet B; controlling the four-way valve V2 to be in a mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve V3 to switch on the outlet A; the second expansion valve 12 is controlled to close.
In the second operation mode, the thermal demand of the power battery 6 is a demand with a relatively low priority, that is, the temperature of the power battery 6 (e.g. between 0 ℃ and 25 ℃) is not much lower than the optimal operation temperature range (e.g. 25 ℃ to 45 ℃), and in order to heat the power battery 6, the power battery 6 is heated by using the waste heat generated when the electric driving modules (e.g. the motor controller 15, the driving motor 17 and the charger 18) in the cooling system of the strong electric system operate.
When the passenger cabin has heat supply or heating demand, the passengers enter a heating mode through relevant operation in the passenger cabin. The antifreeze is pumped into an antifreeze pipeline under the action of a third electronic water pump P3, then flows through a cooling liquid channel of a water-cooled condenser W-cond10 and a second three-way valve V3 to reach the motor controller 15, the driving motor 17 and the charger 18, is heated by heat generated by the electric drive modules of the motor controller 15, the driving motor 17 and the charger 18 during working, and finally flows into the front end of a first electronic water pump P1; the flow direction and the working mode of the antifreeze solution after reaching the first electronic water pump P1 are the same, and the detailed description is omitted here. In the second mode, the antifreeze is heated by using waste heat or waste heat generated when each electric drive module in the strong electric system cooling system works, and an antifreeze circulation loop is formed between the heating system and the strong electric system cooling system; meanwhile, an antifreeze liquid loop is formed in the battery cooling system.
In this mode, the antifreeze outlet of the first electronic water pump P1 is communicated with the antifreeze inlet of the high-voltage electric Heater HVH1, the antifreeze outlet of the high-voltage electric Heater HVH1 is communicated with the antifreeze inlet of the warm air core 3, the antifreeze outlet of the warm air core 3 is communicated with the antifreeze inlet of the first three-way valve V1, the switch-on outlet B of the first three-way valve V1, the antifreeze outlet B of the first three-way valve V1 is communicated with the antifreeze inlet of the second coolant passage of the battery Heater4, the antifreeze outlet of the second coolant passage of the battery Heater4 is communicated with the second interface of the four-way valve V2 through a three-way valve, the second interface of the four-way valve V2 is communicated with the first interface, the interface of the four-way valve V2 is communicated with the antifreeze inlet of the third electronic water pump P3 through a three-way valve, the antifreeze outlet of the electronic water pump P3 is communicated with the antifreeze inlet of the coolant passage of the water-cooled condenser W-cond10, an antifreeze solution outlet of a cooling liquid channel of the water-cooled condenser W-cond10 is communicated with an antifreeze solution inlet of a second three-way valve V3, a second three-way valve V3 is communicated with an outlet A, an antifreeze solution outlet A of a second three-way valve V3 is communicated with an antifreeze solution inlet of a motor controller 15 through a second three-way valve 21, an antifreeze solution outlet of the motor controller 15 is communicated with an antifreeze solution inlet of a driving motor 17, an antifreeze solution outlet of the driving motor 17 is communicated with an antifreeze solution inlet of a charger 18, an antifreeze solution outlet of the charger 18 is communicated with an antifreeze solution inlet 4 of a four-way valve V2, a fourth interface of a four-way valve V2 is communicated with a third interface, and an antifreeze solution outlet 3 of a four-way valve V2 is communicated with an antifreeze solution inlet of a third electronic water pump P1. The circuit formed in the battery cooling system is connected in the same manner as the first operation mode, and will not be described herein.
And in a third working mode, under the low-temperature condition, when the whole vehicle is in a running mode, the power battery 6 has a heating requirement and the passenger compartment has a heating requirement, the waste heat of the strong electric system cooling system and the HVH1 are jointly used for heating the power battery 6 and heating the passenger compartment: the thermal management controller controls the first electronic water pump P1, the second electronic water pump P2 and the third electronic water pump P3 to be started; controlling the high-voltage electric heater HVH1 to be started; controlling the first three-way valve V1 to switch on the outlet B; controlling the four-way valve V2 to be in a mode B, wherein a first interface is communicated with a second interface, and a third interface is communicated with a fourth interface; controlling the second three-way valve V3 to switch on the outlet A; the second expansion valve 12 is controlled to close.
The operating condition in the third operating mode is that the temperature of the antifreeze detected by the second temperature sensor 5 reaches a certain temperature after being heated by the high voltage heater HVH1 in the first operating mode, and at this time, the power of the high voltage heater HVH1 is reduced, and the residual heat of the electric power system cooling system is used to supply heat to the power battery 6 and the passenger compartment.
In the third operation mode, the antifreeze solution circulation loop formed between the heating system and the high-power cooling system is the same as the antifreeze solution circulation loop formed in the battery cooling system. The difference is that in the third working mode, the high-voltage electric heater HVH1 heats the antifreeze under the control of the thermal management controller; and the high-voltage electric heater HVH1 in the second working mode is not started under the control of the thermal management controller, namely the high-voltage electric heater HVH1 does not heat the antifreeze solution.
When the passenger cabin has heat supply or heating demand, the passengers enter a heating mode through relevant operation in the passenger cabin. Antifreeze enters from the front end of a third electronic water pump P3 and is pumped into an antifreeze pipeline under the action of a third electronic water pump P3, then flows through a cooling liquid channel of a water-cooled condenser W-cond10 and a second three-way valve V3 to reach a motor controller 15, a driving motor 17 and a charger 18, is heated by heat generated by the electric driving modules of the motor controller 15, the driving motor 17 and the charger 18 during working, and finally flows into a tee joint at the front end of a first electronic water pump P1; the flow direction and the working mode of the antifreeze solution after reaching the first electronic water pump P1 are the same, and the detailed description is omitted here. The loops of the antifreeze solution in the battery cooling system are the same as the first working mode and the second working mode 2, and the detailed description is omitted.
For the first to 3 operation modes, because all the operation modes are the requirements for supplying heat to the power battery 6 and the passenger compartment, when the thermal management controller receives the requirements, the following logic is implemented for selecting any one of the three operation modes: when the heating demand of the power battery 6 is high demand, the first working mode is preferentially adopted, and the high-voltage heater HVH is used for quickly heating so as to quickly enable the temperature of the power battery 6 and the temperature of the passenger compartment to reach the target temperature; after a period of time for rapid heating, the temperature of the antifreeze collected by the second temperature sensor 5 rises to a certain degree, and then the operating mode of the thermal management system is switched to the third operating mode, wherein in the third operating mode, the output power of the high voltage heater HVH1 is lower than that of the high voltage heater HVH1 in the second operating mode. And when the heating requirement of the power battery 6 is a low heating requirement, the thermal management system adopts a second working mode.
And a fourth working mode, wherein the whole vehicle is in a running mode, the passenger cabin has heating or defogging requirements, and the air conditioning system works, and the waste heat generated by the air conditioning system is utilized for heating or defogging the passenger cabin: the thermal management controller controls the first electronic water pump P1 and the third electronic water pump P3 to be started, and controls the first three-way valve V1 to be communicated with an outlet A; controlling the four-way valve V2 to be in a mode B, wherein a first interface is communicated with a second interface, and a third interface is communicated with a fourth interface; the second three-way valve V3 is controlled to switch on the outlet a.
In the fourth operation mode, the air conditioning system is in an operation state for cooling the power battery 6 or demisting the passenger compartment, and heat is supplied to the passenger compartment by using the water-cooled condenser W-cond10 in the air conditioning system during the operation of the air conditioning system. In this mode, when the air conditioning system is operated, the refrigerant outlet of the electric compressor 9 is communicated with the inlet of the refrigerant passage of the water-cooled condenser W-cond10, the outlets of the refrigerant passage of the water-cooled condenser W-cond10 are respectively communicated with the refrigerant inlets of the first expansion valve 11 and the second expansion valve 12, the refrigerant outlet of the first expansion valve 11 is communicated with the refrigerant inlet of the evaporator 13, the refrigerant outlet of the second expansion valve 12 is communicated with the inlet of the refrigerant passage of the battery cooler Chiller7, and the outlets of the refrigerant passages of the evaporator 13 and the battery cooler Chiller7 are both communicated with the refrigerant inlet of the electric compressor 9.
In this mode, the antifreeze outlet of the first electronic water pump P1 is communicated with the antifreeze inlet of the high-voltage electric heater HVH1, the antifreeze outlet of the high-voltage electric heater HVH1 is communicated with the antifreeze inlet of the warm air core 3, the antifreeze outlet of the warm air core 3 is communicated with the antifreeze inlet of the first three-way valve V1 through a three-way valve, the first three-way valve V1 is communicated with the outlet A, the antifreeze outlet A of the first three-way valve V1 is communicated with the antifreeze inlet of the four-way valve V2 through the first three-way valve 20, the antifreeze inlet of the four-way valve V2 is communicated with the antifreeze inlet, the first inlet of the four-way valve V2 is communicated with the antifreeze inlet of the electronic water pump P3, the antifreeze outlet of the third electronic water pump P3 is communicated with the antifreeze inlet of the water-cooled condenser W-cond10, the antifreeze outlet of the water-cooled condenser W-cond10 is communicated with the antifreeze inlet of the second three-way valve V3, the antifreeze outlet A of the third three-way valve 3 is communicated with the antifreeze inlet of the second three-way valve V21, an antifreeze solution outlet of the motor controller 15 is communicated with an antifreeze solution inlet of the driving motor 17, an antifreeze solution outlet of the driving motor 17 is communicated with an antifreeze solution inlet of the charger 18, an antifreeze solution outlet of the charger 18 is communicated with an antifreeze solution interface IV of the four-way valve V2, an antifreeze solution interface IV of the four-way valve V2 is communicated with an antifreeze solution interface III, and an antifreeze solution interface III of the four-way valve V2 is communicated with an antifreeze solution inlet of the first electronic water pump P1. The circuit in the battery cooling system is operated according to the requirements of the power battery 6 (in the same way as the circuit of the battery cooling system in the first operation mode).
The working mode is five, when the whole vehicle is in a running mode, the power battery 6 has a cooling demand and the strong electric system cooling system has a cooling demand, the strong electric radiator 14 is used for cooling the strong electric system cooling system and the air conditioning system is used for cooling the power battery 6: the thermal management controller controls the second electronic pump P2 and the third electronic pump P3 to start; controlling the first three-way valve V1 to switch on the outlet A; controlling the four-way valve V2 to be in a mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; controlling the second three-way valve V3 to switch on the outlet B; the second expansion valve 12 is controlled to open.
In this mode, the antifreeze outlet of the third electronic water pump P3 is communicated with the antifreeze inlet of the cooling liquid channel of the water-cooled condenser W-cond10, the antifreeze outlet of the cooling liquid channel of the water-cooled condenser W-cond10 is communicated with the antifreeze inlet of the second three-way valve V3, the second three-way valve V3 is communicated with the outlet B as required, the antifreeze outlet of the strong electric radiator 14 is communicated with the second three-way valve 21, the antifreeze outlet of the second three-way valve 21 is communicated with the antifreeze inlet of the motor controller 15, the antifreeze outlet of the motor controller 15 is communicated with the antifreeze inlet of the driving motor 17, the antifreeze outlet of the driving motor 17 is communicated with the antifreeze inlet of the charger 18, and the antifreeze outlet of the charger 18 is communicated with the antifreeze inlet of the third electronic water pump P3 through the four-way valve V2. The cooling circuit in the battery cooling system is described as the first operation mode, and the circuit of the air conditioning system is described as the fourth operation mode, which are not described herein again. The heating system determines whether to operate according to the heating requirement.
And a sixth working mode, when the whole vehicle is in a charging mode and the charger needs to be cooled, the strong electric radiator 14 is utilized to cool the charger 18: the thermal management controller controls the third electronic water pump P3 to start; controlling the four-way valve V2 to be in a mode A, wherein a first interface is communicated with a fourth interface, and a second interface is communicated with a third interface; the second three-way valve V3 is controlled to switch on the outlet B.
In this mode, as shown in fig. 1, only the cooling circuit of the charger 18 operates (the circuit formed in the high electric system cooling system is the same as the circuit formed in the high electric system cooling system in the first operation mode), and the description thereof is omitted.
The power battery 6, the motor controller 15, the driving motor 17 and the charger 18 all adopt a liquid cooling mode.
Other modes of operation exist for the system of the present application, for example, when the passenger compartment is only in need of heating, it is heated by means of the high voltage heater HVH1, and the first three-way valve V1 is connected to the antifreeze outlet a, while the four-way valve V2 is in mode B; or, the passenger compartment is heated by the residual heat of the strong electric system cooling system, at the moment, the first three-way valve V1 is communicated with the antifreeze solution outlet A, and the four-way valve V2 is in the mode A. For another example, when there is a low cooling requirement for the power battery 6, the battery radiator 21 additionally arranged in the battery cooling system may be used to provide heat dissipation for the power battery (where the solution of providing heat dissipation for the power battery by using the battery radiator 21 is described in another embodiment). Of course, in the present embodiment, the water-cooled condenser W-cond10 may be cooled by the strong electric radiator 14 in the strong electric cooling system.
For the system in the above embodiment, as shown in fig. 2 and 4, further includes: a battery radiator 23, a third three-way valve V4, and a third three-way valve 22 for cooling the power battery 6; the third three-way valve V4 has a water inlet and two outlets A, B, and the third three-way valve V4 can only realize the connection of one channel in one time period; the antifreeze outlet a of the third three-way valve V4 is communicated with the antifreeze inlet of the battery radiator 23; an antifreeze inlet of the third three-way valve V4 is communicated with an antifreeze outlet of the power battery 6, an antifreeze outlet A of the third three-way valve V4 is communicated with an antifreeze inlet of the battery radiator 23, an antifreeze outlet B of the third three-way valve V4 is communicated with an antifreeze inlet of the battery cooler Chiller7, and an antifreeze outlet of the battery radiator 23 and an antifreeze outlet of the battery cooler Chiller7 are communicated with an antifreeze inlet of the battery Heater riser 4 through the third tee 22; the third three-way valve V4 is in signal communication with the thermal management controller.
Fig. 2 provides this embodiment with a difference compared to the embodiment of fig. 1 in that in the thermal management system of fig. 2, the power battery 6 can also be cooled by the addition of this battery radiator 23. When the battery radiator 21 is not needed to cool the power battery, the third three-way valve V4 is controlled to be communicated with the antifreeze liquid outlet A, and when the battery radiator 21 is not needed to cool the power battery, the third three-way valve V4 is controlled to be communicated with the antifreeze liquid outlet B.
The pure electric vehicle type heat management system can adapt to different pure electric vehicle types through adjustment, but no matter how the pure electric vehicle type heat management system evolves, the core of the system is to utilize the waste heat of the system to the maximum extent and maximize the efficiency of parts, and the purposes of improving the efficiency and reducing the power consumption are achieved.
The invention also provides a pure electric vehicle which comprises the pure electric vehicle type heat management system.
The embodiments described above describe only some of the one or more embodiments of the present invention, but those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. Accordingly, the present examples and embodiments are to be considered as illustrative and not restrictive, and various modifications and substitutions may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (8)

1. A full electric vehicle type thermal management system comprising: the system comprises a thermal management controller, a heating system, a strong electric system cooling system, a battery cooling system and an air conditioning system, and is characterized in that a four-way valve (V2) is arranged between the strong electric system cooling system and the heating system and is used for connecting or disconnecting the strong electric system cooling system and the heating system;
a battery Heater (4) is arranged in the battery cooling system, a first cooling liquid channel of the battery Heater (4) is arranged in the battery cooling system, a second cooling liquid channel of the battery Heater (4) is communicated with the heating system, and the battery Heater (4) is used for realizing heat exchange between the battery cooling system and the heating system;
a first three-way valve (V1) is arranged in the heating system, the first three-way valve (V1) is arranged at the front end of the battery Heater (4), a first three-way valve (20) is arranged at the rear end of the battery Heater (4), and the first three-way valve (V1) and the battery Heater (4) are respectively communicated with the four-way valve (V2) through the first three-way valve (20);
a water-cooled condenser W-cond (10) is arranged in the air-conditioning system, a refrigerant channel of the water-cooled condenser W-cond (10) is arranged in the air-conditioning system, a cooling liquid channel of the water-cooled condenser W-cond (10) is communicated with the strong electric system cooling system, and the water-cooled condenser W-cond (10) is used for realizing heat exchange between the air-conditioning system and the strong electric system cooling system; the air conditioning system is also provided with a battery cooler Chiller (7), a refrigerant channel of the battery cooler Chiller (7) is arranged in the air conditioning system, a cooling liquid channel is communicated with the battery cooling system, and the battery cooler Chiller (7) is used for realizing heat exchange between the air conditioning system and the battery cooling system; a second three-way valve (V3) is further arranged in the strong electric system cooling system, and the second three-way valve (V3) is arranged on the water outlet side of a cooling liquid channel of the water-cooled condenser W-cond (10);
the four-way valve (V2) has two working modes: mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; and (3) mode B: the first interface is communicated with the second interface, the third interface is communicated with the fourth interface, and the four-way valve (V2) can only work in one mode in one period;
the first three-way valve (V1) and the second three-way valve (V3) are provided with one inlet and two outlets A, B, and the first three-way valve (V1) and the second three-way valve (V3) can only realize one channel connection in one period;
the thermal management controller connects or disconnects each system by controlling the working modes of the four-way valve (V2), the first three-way valve (V1) and the second three-way valve (V3), thereby exerting the functions of each part of the system to the maximum extent and reducing the power consumption of the system;
the heating system includes: the anti-freezing system comprises a first electronic water pump (P1), a high-voltage electric heater (HVH (1) and a warm air core body (3) which are sequentially communicated, wherein an anti-freezing solution inlet of the first electronic water pump (P1) is communicated with an anti-freezing solution interface 3 of a four-way valve (V2), and an anti-freezing solution outlet of the warm air core body (3) is communicated with an anti-freezing solution inlet of a first three-way valve (V1); the antifreeze liquid outlet B of the first three-way valve (V1) is communicated with the antifreeze liquid inlet of the second cooling liquid channel of the battery Heater (4), and the antifreeze liquid outlet A of the first three-way valve (V1) and the antifreeze liquid outlet of the second cooling liquid channel of the battery Heater (4) are communicated with the antifreeze liquid interface 2 of the four-way valve (V2) through the first three-way valve (20);
the high electric system cooling system includes: a third electronic water pump (P3), a strong electric radiator (14), a motor controller (15), a driving motor (17), a charger (18) and a second tee joint (21), wherein an antifreeze inlet of the third electronic water pump (P3) is communicated with an antifreeze interface 1 of the four-way valve (V2), an antifreeze outlet of the third electronic water pump (P3) is communicated with an antifreeze inlet of the water-cooled condenser W-cond (10), an antifreeze outlet of the water-cooled condenser W-cond (10) is communicated with an antifreeze inlet of the second three-way valve (V3), an antifreeze outlet A of the second three-way valve (V3) is communicated with an antifreeze inlet of the motor controller (15) through the second tee joint (21), an antifreeze outlet B of the second three-way valve (V3) is communicated with an antifreeze inlet of the strong electric radiator (14), and an antifreeze outlet of the strong electric radiator (14) is communicated with the antifreeze inlet of the motor controller (14) through the second tee joint (21) An antifreeze inlet of the device (15) is communicated, an antifreeze outlet of the motor controller (15) is communicated with an antifreeze inlet of the driving motor (17), an antifreeze outlet of the driving motor (17) is communicated with an antifreeze inlet of the charger (18), and an antifreeze outlet of the charger (18) is communicated with an antifreeze interface 4 of the four-way valve (V2);
the battery cooling system includes: a second electronic water pump (P2), a power battery (6) and a battery Heater (4), wherein an antifreeze inlet of the second electronic water pump (P2) is communicated with an antifreeze inlet and an antifreeze outlet of a first cooling liquid channel of the battery Heater (4), an antifreeze outlet of the second electronic water pump (P2) is communicated with an antifreeze inlet of the power battery (6), an antifreeze outlet of the power battery (6) is communicated with an antifreeze inlet of the battery cooler Chiller (7), and an antifreeze outlet of the battery cooler Chiller (7) is communicated with an antifreeze inlet of the first cooling liquid channel of the battery Heater (4);
the air conditioning system includes: the cooling system comprises an electric compressor (9), a second expansion valve (12), a water-cooled condenser W-cond (10) and a battery cooler Chiller (7), wherein a refrigerant outlet of the electric compressor (9) is communicated with a refrigerant inlet of the water-cooled condenser W-cond (10), a refrigerant outlet of the water-cooled condenser W-cond (10) is communicated with a refrigerant inlet of the second expansion valve (12), a refrigerant outlet of the second expansion valve (12) is communicated with a refrigerant inlet of the battery cooler Chiller (7), and a refrigerant outlet of the battery cooler Chiller (7) is communicated with a refrigerant inlet of the electric compressor (9);
the first electronic water pump (P1), the high-voltage electric heater HVH (1), the third electronic water pump (P3), the second three-way valve (V3), the second electronic water pump (P2), the second expansion valve (12) and the electric compressor (9) are in signal interaction with the thermal management controller;
the system has at least the following modes of operation:
in the first mode, when the whole vehicle is in a running mode, the power battery (6) has a heating demand and the passenger compartment has a heating demand under a low temperature condition, the high-voltage electric heater HVH (1) is used for heating the power battery (6) and heating the passenger compartment: the thermal management controller controls a first electronic water pump (P1) and a second electronic water pump (P2) to be started; controlling the high-voltage electric heater HVH (1) to start; controlling a first three-way valve (V1) to switch on the outlet B; controlling the four-way valve (V2) in mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; controlling the second expansion valve (12) to close;
and in a second mode, under the low-temperature condition, the whole vehicle is in a running mode, when the power battery (6) has a heating demand and the passenger cabin has a heating demand, the waste heat of the strong electric system cooling system is utilized to heat the power battery (6) and heat the passenger cabin: the thermal management controller controls the first electronic water pump (P1), the second electronic water pump (P2) and the third electronic water pump (P3) to be started; controlling the first three-way valve (V1) to switch on the outlet B; controlling the four-way valve (V2) in mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve (V3) to switch on the outlet A; controlling the second expansion valve (12) to close;
and in a third mode, under the low-temperature condition, when the whole vehicle is in a running mode, the power battery (6) has a heating demand and the passenger cabin has a heating demand, the waste heat of the strong electric system cooling system and the high-voltage electric heater HVH (1) are jointly used for heating the power battery (6) and heating the passenger cabin: the thermal management controller controls the first electronic water pump (P1), the second electronic water pump (P2) and the third electronic water pump (P3) to be started; controlling the high-voltage electric heater HVH (1) to start; controlling the first three-way valve (V1) to switch on the outlet B; controlling the four-way valve (V2) in mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve (V3) to switch on the outlet A; controlling the second expansion valve (12) to close;
and in a fourth mode, when the whole vehicle is in a running mode, the passenger cabin has heating or defogging requirements, and the air conditioning system works, the waste heat generated by the air conditioning system is utilized for heating or defogging the passenger cabin: the thermal management controller controls the first electronic water pump (P1) and the third electronic water pump (P3) to be started, and controls the first three-way valve (V1) to be communicated with an outlet A; controlling the four-way valve (V2) in mode B: the first interface is communicated with the second interface, and the third interface is communicated with the fourth interface; controlling the second three-way valve (V3) to switch on the outlet A;
and a fifth mode, when the whole vehicle is in a running mode, the power battery has a cooling demand and the strong electric system cooling system has a cooling demand, the strong electric radiator (14) is used for cooling the strong electric system cooling system and the air conditioning system is used for cooling the power battery (6): the thermal management controller controls the second electronic water pump (P2) and the third electronic water pump (P3) to start; controlling the first three-way valve (V1) to switch on the outlet A; controlling the four-way valve (V2) in mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; controlling the second three-way valve (V3) to switch on the outlet B; controlling the second expansion valve (12) to open;
and in a sixth mode, when the whole vehicle is in a charging mode and the charger needs cooling, the strong electric radiator (14) is utilized to cool the charger (18): the thermal management controller controls the third electronic water pump (P3) to start; controlling the four-way valve (V2) in mode A: the first interface is communicated with the fourth interface, and the second interface is communicated with the third interface; controlling the second three-way valve (V3) to switch on the outlet B.
2. The pure electric vehicle type thermal management system of claim 1, wherein the heating system further comprises: a first temperature sensor (2);
a first temperature sensor (2) is in signal interaction with the thermal management controller;
the first temperature sensor (2) is arranged at an antifreeze liquid inlet of the warm air core body (3) and used for monitoring the temperature of antifreeze liquid in a loop formed in a battery cooling system and feeding back the temperature to the thermal management controller.
3. The full electric vehicle type thermal management system of claim 1, wherein the high electric system cooling system further comprises: a third temperature sensor (16);
the third temperature sensor (16) is in signal interaction with the thermal management controller;
and the third temperature sensor (16) is arranged at an antifreeze liquid inlet of the driving motor (17) and used for monitoring the temperature of antifreeze liquid in the loop and feeding back the temperature to the thermal management controller.
4. The pure electric vehicle type thermal management system of claim 1, wherein the battery cooling system further comprises: a second temperature sensor (5) and a battery water storage bottle (8);
the second temperature sensor (5) is in signal interaction with the thermal management controller;
the antifreeze liquid outlet of the first cooling liquid channel of the battery Heater (4) is communicated with the antifreeze liquid inlet of the battery water storage bottle (8), and the antifreeze liquid outlet of the battery water storage bottle (8) is communicated with the antifreeze liquid inlet of the second electronic water pump (P2); and the second temperature sensor (5) is arranged at an antifreeze liquid inlet of the power battery (6) and used for monitoring the temperature of antifreeze liquid in the loop and feeding back the temperature to the thermal management controller.
5. The pure electric vehicle type thermal management system according to any one of claims 1 to 4, wherein the air conditioning system further comprises: a first expansion valve (11) and an evaporator (13);
the first expansion valve (11) is in signal interaction with the thermal management controller;
the refrigerant outlet of the water-cooled condenser W-cond (10) is communicated with the refrigerant inlet of the first expansion valve (11), the refrigerant outlet of the first expansion valve (11) is communicated with the refrigerant inlet of the evaporator (13), and the refrigerant outlet of the evaporator (13) is communicated with the refrigerant inlet of the electric compressor (9).
6. The pure electric vehicle type thermal management system of claim 5, further comprising: and an antifreeze inlet of the water storage bottle (19) is respectively communicated with an antifreeze outlet of the strong electric radiator (14) and an antifreeze outlet of the heating system, and an antifreeze outlet of the water storage bottle (19) is respectively communicated with an antifreeze inlet of a first electronic water pump (P1) of the heating system and an antifreeze inlet of a third electronic water pump (P3) of the strong electric cooling system.
7. The pure electric vehicle type thermal management system of claim 1, further comprising:
a battery radiator (23), a third three-way valve (V4) and a third three-way valve (22) for cooling the power battery (6);
the third three-way valve (V4) has a water inlet and two outlets A, B, and the third three-way valve (V4) can only realize the connection of one channel in one time period;
an antifreeze outlet B of the third three-way valve (V4) is communicated with an antifreeze inlet of the battery radiator (23);
an antifreeze inlet of the third three-way valve (V4) is communicated with an antifreeze outlet of the power battery (6), an antifreeze outlet A of the third three-way valve (V4) is communicated with an antifreeze inlet of the battery radiator (23), an antifreeze outlet B of the third three-way valve (V4) is communicated with an antifreeze inlet of the battery cooler Chiller (7), and the antifreeze outlet of the battery radiator (23) and the antifreeze outlet of the battery cooler Chiller (7) are communicated with the antifreeze inlet of the battery Heater Heater (4) through the third three-way valve (22);
the third three-way valve (V4) is in signal communication with the thermal management controller.
8. A pure electric vehicle comprising a pure electric vehicle type thermal management system according to claim 7.
CN202010364098.4A 2020-04-30 2020-04-30 Pure electric vehicle type thermal management system and pure electric vehicle Active CN113352839B (en)

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