CN113954599B - Hybrid vehicle cooling method, apparatus, and readable storage medium - Google Patents

Hybrid vehicle cooling method, apparatus, and readable storage medium Download PDF

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Publication number
CN113954599B
CN113954599B CN202111371836.9A CN202111371836A CN113954599B CN 113954599 B CN113954599 B CN 113954599B CN 202111371836 A CN202111371836 A CN 202111371836A CN 113954599 B CN113954599 B CN 113954599B
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motor
battery
cooling module
temperature
module
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CN113954599A (en
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王丹丹
孟国栋
柯炯
周建刚
普刚
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Dongfeng Commercial Vehicle Co Ltd
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Dongfeng Commercial Vehicle 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
    • B60H1/00271—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
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • 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
    • B60H1/004—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for vehicles having a combustion engine and electric drive means, e.g. hybrid electric vehicles
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00828—Ventilators, e.g. speed control
    • 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
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899—Controlling the flow of liquid in a heat pump system
    • 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
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • 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
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • 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
    • B60H2001/003—Component temperature regulation using an air flow
    • 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
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • 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
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • 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
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • 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
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/327—Cooling devices output of a control signal related to a compressing unit

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The application relates to a hybrid electric vehicle cooling method, equipment and a readable storage medium, and relates to the technical field of automobile cooling, and the hybrid electric vehicle cooling method comprises an engine cooling module, a motor cooling module, a battery temperature control module and an air conditioner cooling module, wherein a motor radiator in the motor cooling module and a condenser in the air conditioner cooling module are arranged on the engine cooling module side by side and are positioned at the side of an engine fan, air blown by the engine fan blows to the motor radiator and the condenser, and the motor cooling module and the battery temperature control module are in a serial state or a non-serial state by controlling the steering of a four-way reversing valve. The motor cooling module in this application need not the newly-increased fan, has not only improved the occupancy rate in whole car space, still can not produce extra consumption, and makes battery temperature control module give motor and battery cooling simultaneously through the steering of control four-way reversing valve, has realized not adding independent fan, also can satisfy the heat dissipation demand of motor when pure electric driving operating mode.

Description

Hybrid vehicle cooling method, apparatus, and readable storage medium
Technical Field
The present disclosure relates to the field of automotive cooling technologies, and in particular, to a method and apparatus for cooling a hybrid vehicle, and a readable storage medium.
Background
With the increasingly strict fuel consumption and emission regulations, new energy automobiles gradually become hot-door automobiles. The hybrid electric vehicle is a main vehicle type in the current new energy vehicle because the hybrid electric vehicle has no mileage anxiety of the pure electric vehicle and has lower oil consumption than the fuel oil vehicle. However, the hybrid electric vehicle has the traditional internal combustion engine and parts such as a power battery, a driving motor, a controller and the like which are special for the pure electric vehicle, so that the space arrangement is relatively tension; meanwhile, the requirements of the power battery, the driving motor and the controller on temperature are different from those of the traditional fuel oil vehicle, a temperature control system is newly added, and the vehicle temperature control system is complex, so that the space arrangement tension of the hybrid power vehicle is further increased. Therefore, the design of the power battery and the motor electric control temperature control system in the hybrid electric vehicle not only needs to meet the temperature requirements of battery and motor electric control, but also needs to enable occupied space and power consumption to be as small as possible.
Because of high water cooling efficiency and good radiator effect, most of motor cooling systems of existing hybrid vehicles adopt a water cooling technology. In the related art, generally, a set of independent cooling systems are respectively provided for an engine, a driving motor and a power battery to meet the temperature requirements of the battery and the electric control of the motor, for example, as shown in fig. 1, the motor cooling system generally comprises a motor water pump 25, a motor radiator 21, an electronic fan 27, a cooled motor 22 and a motor controller 23, the motor water pump 25 drives cooling liquid to circulate in the system and take away heat of the motor 22 and the motor controller 23, and the electronic fan enables wind to pass through the motor radiator 21 and takes away heat of the cooling liquid.
Disclosure of Invention
The application provides a cooling method, cooling equipment and a readable storage medium for a hybrid electric vehicle, which are used for solving the problems of large space occupation rate and large power consumption of the whole vehicle caused by the addition of an electronic fan in the related technology.
In a first aspect, there is provided a hybrid vehicle cooling system comprising:
an engine cooling module including an engine fan;
the motor cooling module comprises a motor radiator, a motor controller, a four-way reversing valve, a motor water pump and a motor expansion water tank which are sequentially connected end to end;
the battery temperature control module comprises a battery refrigerator, a battery heater, a battery pack, a battery expansion water tank and a battery water pump which are sequentially connected end to end, and the battery water pump is connected with the battery refrigerator through a four-way reversing valve;
the air conditioner cooling module comprises a condenser, a compressor and a vehicle body air conditioner which are connected end to end in sequence, and the battery refrigerator is connected between the condenser and the compressor in a bridging way;
the motor radiator and the condenser are arranged on the engine cooling module side by side and are positioned at the side of the engine fan, and air blown by the engine fan is blown to the motor radiator and the condenser, so that the motor cooling module and the battery temperature control module are in a serial state or a non-serial state by controlling the steering of the four-way reversing valve.
In a second aspect, a cooling method for a hybrid vehicle using the cooling system for a hybrid vehicle is provided, including the steps of:
detecting a vehicle working mode;
if the vehicle working mode is a pure electric mode, controlling the steering of the four-way reversing valve according to the ambient temperature, the temperature of the motor controller and the temperature of the motor to enable the motor cooling module and the battery temperature control module to be in a serial state or a non-serial state;
when the motor cooling module and the battery temperature control module are in a serial state, respectively controlling the working state of the compressor, the working state of the motor water pump and the working state of the battery water pump so as to enable the air conditioner cooling module, the motor cooling module and the battery temperature control module to cool the battery pack and the motor simultaneously;
when the motor cooling module and the battery temperature control module are in a non-series connection state, the working state of the motor water pump is controlled, so that the motor cooling module cools the motor or the motor naturally dissipates heat.
In some embodiments, the controlling the steering of the four-way reversing valve according to the ambient temperature, the motor controller temperature, and the motor temperature to place the motor cooling module and the battery temperature control module in a series state or a non-series state includes:
when the ambient temperature is greater than the ambient temperature threshold and the motor controller temperature is greater than the first motor controller temperature threshold or the motor temperature is greater than the first motor temperature threshold, controlling the motor cooling module and the battery temperature control module to be in a serial state;
And when the ambient temperature is less than or equal to the ambient temperature threshold, controlling the motor cooling module and the battery temperature control module to be in a non-series state.
In some embodiments, the controlling the working state of the motor water pump to cool the motor or naturally dissipate heat of the motor cooling module includes:
when the temperature of the motor controller is smaller than or equal to the first motor controller temperature threshold and the temperature of the motor is smaller than or equal to the first motor temperature threshold, the motor water pump is kept in a closed state, so that the motor radiates heat naturally.
In some embodiments, after the step of detecting the vehicle operation mode, the method further includes:
if the vehicle working mode is a pure fuel mode, controlling the steering of the four-way reversing valve to enable the motor cooling module and the battery temperature control module to be in a non-series state, and respectively controlling the working states of the motor water pump and the engine fan according to the temperature of the motor controller and the temperature of the motor so as to enable the motor cooling module and the engine cooling module to cool the motor simultaneously.
In some embodiments, after the step of detecting the vehicle operation mode, the method further includes:
if the vehicle working mode is a hybrid power mode, controlling the steering of the four-way reversing valve according to the water outlet temperature of the motor radiator and whether the battery pack has an additional refrigeration request so as to enable the motor cooling module and the battery temperature control module to be in a serial state or a non-serial state;
When the motor cooling module and the battery temperature control module are in a serial state, respectively controlling the working states of the motor water pump and the battery water pump so as to enable the motor cooling module and the battery temperature control module to cool the battery pack and the motor simultaneously;
when the motor cooling module and the battery temperature control module are in a non-series state, the working state of the motor water pump and the working state of the engine fan are controlled respectively, so that the motor cooling module and the engine cooling module cool the motor simultaneously.
In some embodiments, the controlling the steering of the four-way reversing valve according to the outlet water temperature of the motor radiator and whether the battery pack has an additional refrigeration request to enable the motor cooling module and the battery temperature control module to be in a serial state or a non-serial state comprises:
when the water outlet temperature of the motor radiator is smaller than or equal to the water outlet temperature threshold value and the battery pack has an additional refrigeration request, controlling the steering of the four-way reversing valve to enable the motor cooling module and the battery temperature control module to be in a serial state;
when the outlet water temperature of the motor radiator is smaller than or equal to the outlet water temperature threshold value and the battery pack has no additional refrigeration request or the outlet water temperature of the motor radiator is larger than the outlet water temperature threshold value, the steering of the four-way reversing valve is controlled to enable the motor cooling module and the battery temperature control module to be in a non-series state.
In some embodiments, the controlling the operation state of the motor water pump and the operation state of the engine fan to enable the motor cooling module and the engine cooling module to cool the motor simultaneously includes:
and respectively starting the motor water pump and the engine fan, and controlling the rotating speed of the engine fan according to the temperature of the motor controller and the temperature of the motor so as to enable the motor cooling module and the engine cooling module to cool the motor simultaneously.
In a third aspect, there is provided a hybrid vehicle cooling apparatus comprising: the cooling system comprises a memory and a processor, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor so as to realize the cooling method of the hybrid electric vehicle.
In a fourth aspect, a computer-readable storage medium is provided, the computer storage medium storing computer instructions that, when executed by a computer, cause the computer to perform the aforementioned hybrid vehicle cooling method.
The beneficial effects that technical scheme that this application provided brought include: the novel fan is not needed, so that the occupancy rate of the whole vehicle space is improved, the additional power consumption is reduced, and the heat dissipation requirement of the motor in the pure electric driving working condition can be met.
The application provides a hybrid electric vehicle cooling method, equipment and readable storage medium, including engine cooling module, motor cooling module, battery temperature control module and air conditioner cooling module, engine cooling module includes the engine fan, the motor cooling module includes motor radiator, the motor controller, the four-way reversing valve, motor water pump and motor expansion tank that connects gradually end to end, battery temperature control module includes the battery refrigerator that connects gradually end to end, the battery heater, the battery package, battery expansion tank and battery water pump, the battery water pump passes through the four-way reversing valve and is connected with the battery refrigerator, the air conditioner cooling module includes the condenser that connects gradually end to end, compressor and automobile body air conditioner, battery refrigerator cross-over connection is between condenser and compressor; the motor radiator and the condenser are arranged on the engine cooling module side by side and are positioned at the side of the engine fan, and air blown by the engine fan is blown to the motor radiator and the condenser, so that the motor cooling module and the battery temperature control module are in a serial state or a non-serial state by controlling the steering of the four-way reversing valve. According to the motor cooling module, the motor radiator is integrated on the engine cooling module and shares the engine fan, so that the motor cooling module does not need to be additionally provided with the fan, the occupancy rate of the whole vehicle space is improved, and extra power consumption is avoided; in addition, because the motor cooling module shares the engine fan with the engine cooling module, when the whole vehicle is in a pure electric driving working condition, the engine does not work, and the engine fan does not operate, at this moment, if the motor has a heat dissipation requirement, the steering of the four-way reversing valve can be controlled to enable the motor cooling module and the battery temperature control module to be in a serial connection position, and then the motor and the battery pack are cooled simultaneously through the battery temperature control module, so that the heat dissipation requirement of the motor in the pure electric driving working condition can be met without adding an independent fan.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art motor cooling system;
fig. 2 is a schematic structural diagram of a cooling system of a hybrid vehicle according to an embodiment of the present application;
fig. 3 is a schematic diagram of a cooling system of a hybrid vehicle according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of a cooling method of a hybrid vehicle according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a cooling apparatus for a hybrid vehicle according to an embodiment of the present application.
In the figure: the cooling system comprises a 1-engine cooling module, a 11-engine fan, a 2-motor cooling module, a 21-motor radiator, a 22-motor, a 23-motor controller, a 24-four-way reversing valve, a 25-motor water pump, a 26-motor expansion water tank, a 27-electronic fan, a 3-battery temperature control module, a 31-battery refrigerator, a 32-battery heater, a 33-battery pack, a 34-battery expansion water tank, a 35-battery water pump, a 4-air conditioner cooling module, a 41-condenser, a 42-compressor and a 43-vehicle body air conditioner.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The embodiment of the application provides a cooling method, cooling equipment and a readable storage medium for a hybrid electric vehicle, which can solve the problems of large space occupation rate and large power consumption of the whole vehicle caused by adding an electronic fan in the related technology.
Fig. 2 is a schematic diagram of a cooling system for a hybrid vehicle according to an embodiment of the present application, including:
an engine cooling module 1, the engine cooling module 1 including an engine fan 11;
the motor cooling module 2, the motor cooling module 2 comprises a motor radiator 21, a motor 22, a motor controller 23, a four-way reversing valve 24, a motor water pump 25 and a motor expansion water tank 26 which are connected end to end in sequence;
the battery temperature control module 3, the battery temperature control module 3 comprises a battery refrigerator 31, a battery heater 32, a battery pack 33, a battery expansion water tank 34 and a battery water pump 35 which are connected end to end in sequence, and the battery water pump 35 is connected with the battery refrigerator 31 through a four-way reversing valve 24;
The air conditioner cooling module 4, the air conditioner cooling module 4 comprises a condenser 41, a compressor 42 and a vehicle body air conditioner 43 which are connected end to end in sequence, and the battery refrigerator 31 is connected between the condenser 41 and the compressor 42 in a bridging way;
the motor radiator 21 and the condenser 41 are arranged on the engine cooling module 1 side by side and are located at the side of the engine fan 11, and air blown by the engine fan 11 is blown to the motor radiator 21 and the condenser 41, so that the motor cooling module 2 and the engine cooling module 1 share the engine fan 11, and further the motor radiator 21 does not need to be newly added with a fan. The four-way reversing valve 24 can regulate reversing, and the motor cooling module 2 and the battery temperature control module 3 can be in a serial state or a non-serial state by controlling the reversing of the four-way reversing valve 24, namely, the motor cooling module 2 and the battery temperature control module 3 are mutually independent or are connected in series in one loop.
Illustratively, in the embodiment of the present application, referring to fig. 3, the motor cooling module 2 includes a motor radiator 21, a motor water pump 25, a four-way reversing valve 24, a cooled motor controller 23, and a motor 22, and the motor 22 includes a motor water jacket, a motor expansion tank 26 for supplementing water and degassing, a pipeline for communicating with each component, and the like (referring to a motor cooling circulation water path in fig. 3). Wherein, the water outlet of motor radiator 21 connects the water inlet of motor water pump 25, and the four-way reversing valve 24 is connected to the water outlet of motor water pump 25, and the water inlet of motor controller 23 is connected to four-way reversing valve 24, and the water inlet of motor 22 is connected to the water outlet of motor controller 23, and the water inlet of motor radiator 21 is connected to the water outlet of motor 22, and the moisturizing mouth of motor expansion tank 26 is connected on the pipeline between the water outlet of motor radiator 21 and the water inlet of motor water pump 25, and the removal mouth of motor radiator 21 is connected to the removal mouth of motor expansion tank 26.
The battery temperature control module 3 includes a battery expansion tank 34, a battery water pump 35, a battery refrigerator 31, a battery heater 32, a battery pack 33 water path, a pipe line connecting the components, and the like (see a battery temperature control circulation water path in fig. 3). Wherein, the water outlet of the battery pack 33 is connected with the water inlet of the battery water pump 35, the water outlet of the battery water pump 35 is connected with the four-way reversing valve 24, the four-way reversing valve 24 is connected with the water inlet of the battery refrigerator 31, the water outlet of the battery refrigerator 31 is connected with the water inlet of the battery heater 32, the water outlet of the battery heater 32 is connected with the water inlet of the battery pack 33, the water supplementing port of the battery expansion water tank 34 is connected on a pipeline between the water outlet of the battery pack 33 and the water inlet of the battery water pump 35, the degassing port of the battery pack 33 is connected with the degassing port of the battery expansion water tank 34, and the refrigerant inlet and outlet of the battery refrigerator 31 is connected with the air conditioner cooling module 4 (see the air conditioner cooling circulation waterway in fig. 3) in parallel and is provided with a refrigerant stop valve. In the battery refrigerator 31, the air-conditioning refrigerant can take away the heat of the battery cooling liquid to achieve the cooling effect; in the battery heater 32, the engine hot water may transfer heat to the battery coolant to achieve a warming effect.
The motor radiator 21 may preferably adopt an ultrathin heat dissipation core, and the heat dissipation core is thin and has small temperature rise after wind flows through the motor radiator 21, so that the heat dissipation effect of the engine cooling module 1 is slightly affected.
Specifically, when the vehicle working mode is in the pure fuel mode, the motor cooling module 2 and the battery temperature control module 3 are in mutually independent states through the reversing of the four-way reversing valve 24, and the engine fan 11 can radiate heat for the motor radiator 21; when the vehicle is in the hybrid power mode, the motor cooling circulation waterway can be connected with the battery temperature control circulation waterway through the four-way reversing valve 24, that is, the motor cooling module 2 and the battery temperature control module 3 can be mutually independent or connected in series to form a temperature control system through the four-way reversing valve 24 in a reversing manner, for example, when the outlet water temperature of the motor radiator is less than or equal to the outlet water temperature threshold value and the battery pack 33 has additional refrigeration requirement, the four-way reversing valve 24 can be rotated to the serial connection position of the motor cooling module 2 and the battery temperature control module 3, at the moment, the compressor 42 is not required to be started, the refrigerant in the condenser 41 does not flow through the battery cooler 31, and the motor radiator 21 is directly utilized for cooling the power battery, so that the energy consumption of the compressor 42 can be reduced.
Because the motor cooling module 2 is not additionally provided with a fan and shares the engine fan 11 with the engine cooling module 1, when the whole vehicle is in a pure electric driving condition, the engine does not work, and the engine fan 11 does not operate either, so that the motor cooling module 2 cannot normally dissipate heat, and the motor 22 has a heat dissipation requirement; at this time, the four-way reversing valve 24 can be turned to the serial connection position of the motor cooling module 2 and the battery temperature control module 3, and the battery refrigerator 31 in the battery temperature control module 3 can cool the motor 22 and the power battery at the same time, so that the heat dissipation requirement of the motor 22 in the pure electric driving working condition can be met without adding an independent fan.
Therefore, the motor radiator 21 is integrated on the engine cooling module 1 and shares the engine fan 11, so that the motor cooling module 2 does not need to be additionally provided with a fan, the occupancy rate of the whole vehicle space is improved, no extra power consumption is generated, and the economy is high; in addition, because the motor cooling module 2 and the engine cooling module 1 share the engine fan 11, when the whole vehicle is in a pure electric driving working condition, the engine does not work, and the engine fan 11 does not operate, at this time, if the motor 22 has a heat dissipation requirement, the steering of the four-way reversing valve 24 is controlled to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial connection position, and then the battery temperature control module 3 is used for simultaneously cooling the motor 22 and the battery pack 33, so that the heat dissipation requirement of the motor 22 in the pure electric driving working condition can be met without adding an independent fan, the motor cooling module 2 and the battery temperature control module 3 are integrated to a certain extent, the heat transfer process is controlled and optimized from the whole angle, and the energy utilization rate is higher.
Referring to fig. 4, the embodiment of the application further provides a hybrid vehicle cooling method adopting the foregoing hybrid vehicle cooling system, which includes the following steps:
step S10: detecting a vehicle working mode;
step S20: if the vehicle working mode is a pure electric mode, controlling the steering of the four-way reversing valve 24 according to the ambient temperature, the motor controller temperature and the motor temperature to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial state or a non-serial state;
step S30: when the motor cooling module 2 and the battery temperature control module 3 are in a serial state, the operating state of the compressor 42, the operating state of the motor water pump 25 and the operating state of the battery water pump 35 are controlled respectively, so that the air conditioner cooling module 4, the motor cooling module 2 and the battery temperature control module 3 cool the battery pack 33 and the motor 22 simultaneously;
step S40: when the motor cooling module 2 and the battery temperature control module 3 are in a non-series state, the working state of the motor water pump 25 is controlled so that the motor cooling module 2 cools the motor 22 or the motor 22 naturally dissipates heat.
When the whole vehicle is in a pure electric driving working condition, the engine does not work, the engine fan 11 does not operate, at this moment, if the motor 22 has heat dissipation requirements, the steering of the four-way reversing valve 24 is controlled, so that the motor cooling module 2 and the battery temperature control module 3 are in a serial connection position, and then the motor 22 and the battery pack 33 are cooled through the battery temperature control module 3 at the same time, the heat dissipation requirements of the motor 22 can be met when the pure electric driving working condition is also realized without adding an independent fan, the motor cooling module 2 and the battery temperature control module 3 are integrated to a certain extent, the heat transfer process is controlled and optimized from the whole angle, and the energy utilization rate is higher.
Still further, in the embodiment of the present application, the controlling the four-way reversing valve 24 according to the ambient temperature, the motor controller temperature, and the motor temperature to place the motor cooling module 2 and the battery temperature control module 3 in a serial state or a non-serial state includes:
when the ambient temperature is greater than the ambient temperature threshold and the motor controller temperature is greater than the first motor controller temperature threshold or the motor temperature is greater than the first motor temperature threshold, controlling the motor cooling module 2 and the battery temperature control module 3 to be in a serial state;
when the ambient temperature is less than or equal to the ambient temperature threshold, the motor cooling module 2 and the battery temperature control module 3 are controlled to be in a non-series state.
Further, in the embodiment of the present application, the controlling the working state of the motor water pump 25 to make the motor cooling module 2 cool the motor 22 or naturally dissipate heat of the motor 22 includes:
when the motor controller temperature is less than or equal to the first motor controller temperature threshold and the motor temperature is less than or equal to the first motor temperature threshold, the motor water pump 25 is kept in the off state so as to naturally dissipate heat of the motor 22.
Further, in an embodiment of the present application, after the step of detecting the vehicle operation mode, the method further includes:
If the vehicle working mode is the pure fuel mode, the four-way reversing valve 24 is controlled to turn to enable the motor cooling module 2 and the battery temperature control module 3 to be in a non-series state, and the working states of the motor water pump 25 and the engine fan 11 are respectively controlled according to the temperature of the motor controller and the temperature of the motor, so that the motor cooling module 2 and the engine cooling module 1 can cool the motor 22 simultaneously.
Further, in an embodiment of the present application, after the step of detecting the vehicle operation mode, the method further includes:
if the vehicle working mode is a hybrid power mode, controlling the steering of the four-way reversing valve 24 according to the outlet water temperature of the motor radiator and whether the battery pack 33 has an additional refrigeration request to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial state or a non-serial state;
when the motor cooling module 2 and the battery temperature control module 3 are in a serial state, respectively controlling the working states of the motor water pump 25 and the battery water pump 35 so that the motor cooling module 2 and the battery temperature control module 3 simultaneously cool the battery pack 33 and the motor 22;
when the motor cooling module 2 and the battery temperature control module 3 are in the non-series state, the operation state of the motor water pump 25 and the operation state of the engine fan 11 are controlled so that the motor cooling module 2 and the engine cooling module 1 simultaneously cool the motor 22.
Further, in the embodiment of the present application, the controlling the four-way reversing valve 24 to turn according to the outlet water temperature of the motor radiator and whether the battery pack 33 has an additional cooling request to place the motor cooling module 2 and the battery temperature control module 3 in a serial state or a non-serial state includes:
when the water outlet temperature of the motor radiator is smaller than or equal to the water outlet temperature threshold value and the battery pack 33 has an additional refrigeration request, controlling the steering of the four-way reversing valve 24 to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial state;
when the motor radiator outlet water temperature is less than or equal to the outlet water temperature threshold value and the battery pack 33 has no additional refrigeration request or the motor radiator outlet water temperature is greater than the outlet water temperature threshold value, the four-way reversing valve 24 is controlled to turn so that the motor cooling module 2 and the battery temperature control module 3 are in a non-series connection state.
Further, in the embodiment of the present application, the controlling the operation state of the motor water pump 25 and the operation state of the engine fan 11 so that the motor cooling module 2 and the engine cooling module 1 simultaneously cool the motor 22 includes:
the motor water pump 25 and the engine fan 11 are started, respectively, and the rotation speed of the engine fan 11 is controlled according to the motor controller temperature and the motor temperature, so that the motor cooling module 2 and the engine cooling module 1 cool the motor 22 at the same time.
The following embodiments of the present application further illustrate the workflow and principles of a cooling method for a vehicle in different modes of operation.
When the vehicle is in a pure electric mode and the ambient temperature is lower than the ambient temperature threshold, the four-way reversing valve 24 is positioned at the independent positions of the motor cooling module 2 and the battery temperature control module 3, and the starting and stopping of the water pump can be controlled according to a preset first motor controller temperature threshold and a preset first motor temperature threshold; when the ambient temperature is higher than the ambient temperature threshold, the temperature of the motor controller is higher than the first ambient temperature threshold or the temperature of the motor is higher than the first ambient temperature threshold, the four-way reversing valve 24 is controlled to be switched to the serial connection position of the motor cooling module 2 and the battery temperature control module 3, and the battery refrigerator 31 simultaneously cools the power battery and the motor 22, so that the vehicle can run under the pure electric working condition without additionally adding a motor cooling fan.
Specifically, the judgment control process of the pure electric mode is as follows:
step N1: judging whether the ambient temperature is greater than an ambient temperature threshold and whether the motor controller temperature is greater than a first motor controller temperature threshold or whether the motor temperature is greater than a first motor temperature threshold, if so, turning to a step N2, otherwise turning to a step N3;
Step N2: controlling the steering of the four-way reversing valve 24 to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial state, and turning to the step N4;
step N3: controlling the steering of the four-way reversing valve 24 to enable the motor cooling module 2 and the battery temperature control module 3 to be in a non-series state, and turning to a step N5;
step N4: starting the compressor 42, the motor water pump 25 and the battery water pump 35, and controlling the motor water pump 25 and the battery water pump 35 to operate at a rotation speed of a preset duty ratio, wherein the refrigerant flows through the battery refrigerator 31, so that the air conditioner cooling module 4, the motor cooling module 2 and the battery temperature control module 3 simultaneously cool the battery pack 33 and the motor 22, and the process goes to step N7;
step N5: judging whether the temperature of the motor controller is less than or equal to a first motor controller temperature threshold value and whether the temperature of the motor is less than or equal to a first motor temperature threshold value, if so, turning to a step N6, otherwise, turning to a step N4;
step N6: keeping the motor water pump 25 in a closed state so as to naturally dissipate heat of the motor 22, and turning to the step N7;
step N7: judging whether the temperature of the motor controller is less than or equal to the difference between the first motor controller temperature threshold and the preset temperature difference (the cooling system is prevented from being frequently started and stopped by the setting of the preset temperature difference) and whether the temperature of the motor is less than or equal to the difference between the first motor temperature threshold and the preset temperature difference, if yes, turning to the step N8, otherwise, enabling the compressor 42, the motor water pump 25 and the battery water pump 35 to keep the current working state;
Step N8: the motor cooling module 2 exits the cooling process.
When the vehicle is in the pure fuel mode, only the motor cooling module 2 is in need of cooling, so the motor cooling module 2 and the battery temperature control module 3 can be in a non-series state by controlling the steering of the four-way reversing valve 24. Since the temperature rise of the motor controller 23 and the motor 22 is slow, the working states of the motor water pump 25 and the engine fan 11, i.e. the start and stop and the rotation speed of the motor water pump 25 and the engine fan 11 can be controlled according to the temperature of the motor controller and the temperature threshold of the second motor controller and the temperature of the motor temperature and the temperature threshold of the second motor, so that the motor cooling module 2 and the engine cooling module 1 can cool the motor 22 at the same time. Wherein the second motor controller temperature threshold is greater than the first motor controller temperature threshold, and the second motor temperature threshold is greater than the first motor temperature threshold.
Specifically, the judging and controlling process of the pure fuel mode is as follows:
step M1: judging whether the temperature of the motor controller is greater than a second motor controller temperature threshold or whether the temperature of the motor is greater than a second motor temperature threshold, if so, turning to a step M2, otherwise, the motor cooling module 2 exits the cooling program, and at the moment, the motor water pump 25 does not run, no rotation speed request of the engine fan 11 exists, and further no power consumption is generated;
Step M2: starting the motor water pump 25, controlling the motor water pump 25 to operate at a rotating speed with a preset duty ratio, and operating the engine fan 11 at a preset first rotating speed to enable the motor cooling module 2 and the engine cooling module 1 to simultaneously cool the motor 22 and the motor controller 23, and turning to the step M3;
step M3: judging whether the temperature of the motor controller is less than or equal to the difference value between the first motor controller temperature threshold value and the preset temperature difference and whether the temperature of the motor is less than or equal to the difference value between the first motor temperature threshold value and the preset temperature difference, if yes, turning to a step M4, otherwise, enabling the motor water pump 25 and the engine fan 11 to keep the current working state;
step M4: the motor cooling module 2 exits the cooling process.
When the vehicle is in the hybrid mode, the water outlet temperature of the motor radiator is less than or equal to the water outlet temperature threshold value, and the battery pack 33 sends out an additional refrigeration request, and the steering of the four-way reversing valve 24 is controlled to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial state; at this time, the battery temperature control module 3 does not need to start the compressor 42, the refrigerant does not flow through the battery refrigerator 31, and the motor radiator 21 can simultaneously refrigerate the power battery and the motor 22, so that no additional power consumption is generated; if the battery pack 33 has no additional cooling request, the four-way reversing valve 24 is controlled to turn to make the motor cooling module 2 and the battery temperature control module 3 in a non-series state, and the motor controller 23 and the motor 22 are quickly heated in the mixed mode, so that the start-stop and the rotation speed of the motor water pump 25 and the engine fan 11 can be controlled according to the preset first motor controller temperature threshold and the first motor temperature threshold, and no rotation speed request of the engine fan 11 is caused because the temperature of the cooling liquid is low at the moment.
In addition, when the motor radiator outlet water temperature is less than or equal to the outlet water temperature threshold and the battery pack 33 does not send an additional refrigeration request or the motor radiator outlet water temperature is higher than the outlet water temperature threshold, the four-way reversing valve 24 is controlled to be positioned independently of the motor cooling module 2 and the battery temperature control module 3, the battery temperature control module 3 is controlled to cool the battery pack 33 according to the actual requirement of the battery temperature control circulating waterway, and the motor water pump 25 and the engine fan 11 are controlled to start and stop and rotate speed according to the preset first motor controller temperature threshold, second motor controller temperature threshold and first motor temperature threshold and second motor temperature threshold, so that the motor cooling module 2 and the engine cooling module 1 cool the motor 22 simultaneously.
Specifically, the judgment control process of the hybrid mode is as follows:
step P1: judging whether the water outlet temperature of the motor radiator is smaller than or equal to a water outlet temperature threshold value, if so, turning to a step P2, otherwise, turning to a step P4;
step P2: judging whether the battery pack 33 sends out an additional refrigeration request, if so, turning to the step P3, otherwise, turning to the step P4;
step P3: controlling the steering of the four-way reversing valve 24 to enable the motor cooling module 2 and the battery temperature control module 3 to be in a serial state, and turning to a step P9;
Step P4: controlling the steering of the four-way reversing valve 24 to enable the motor cooling module 2 and the battery temperature control module 3 to be in a non-series state, and turning to the step P5;
step P5: judging whether the temperature of the motor controller is less than or equal to a first motor controller temperature threshold value and whether the temperature of the motor is less than or equal to a first motor temperature threshold value, if yes, turning to step P12, otherwise turning to step P6 (namely step P2→step P4→step P5→step P6) or step P7 (namely step P1→step P4→step P5→step P7);
step P6: starting the motor water pump 25 and enabling the motor water pump to run at a high speed, keeping the original working state of the engine fan 11, and turning to a step P10;
step P7: judging whether the temperature of the motor controller is less than or equal to a second motor controller temperature threshold value and whether the temperature of the motor is less than or equal to a second motor temperature threshold value, if so, turning to a step P8, otherwise, turning to a step P9;
step P8: starting the motor water pump 25 and operating at a high speed, starting the engine fan 11 and operating at a low speed, and proceeding to step P10;
step P9: starting the motor water pump 25 and operating it at high speed, starting the engine fan 11 and operating it at high speed, turning to step P2 (i.e. step p2→p3→p9→p2) or step P11 (i.e. step p1→p4→p5→p7→p9→p11);
Step P10: judging whether the temperature of the motor controller is less than or equal to the difference value between the first motor controller temperature threshold and the preset temperature difference and whether the temperature of the motor is less than or equal to the difference value between the first motor temperature threshold and the preset temperature difference, if yes, turning to a step P12, otherwise, enabling the compressor 42, the motor water pump 25 and the battery water pump 35 to keep the current working state;
step P11: judging whether the temperature of the motor controller is less than or equal to the difference value between the temperature threshold value of the second motor controller and the preset temperature difference and whether the temperature of the motor is less than or equal to the difference value between the temperature threshold value of the second motor and the preset temperature difference, if yes, turning to a step P5, otherwise, enabling the compressor 42, the motor water pump 25 and the battery water pump 35 to keep the current working state;
step P12: the motor cooling module 2 exits the cooling process.
Therefore, according to the embodiment of the application, different control methods are adopted to realize the cooling methods of the motor 22, the motor controller 23 and the battery pack 33 in the hybrid electric vehicle according to the working characteristics of the driving motor 22 in different working modes of the whole vehicle, so that the control is more refined and the energy is saved.
The hybrid vehicle cooling method provided by the above-described embodiment may be implemented in the form of a computer program that can be run on the hybrid vehicle cooling apparatus as shown in fig. 5.
The embodiment of the application also provides a cooling device of the hybrid vehicle, which comprises the following components: the system comprises a memory, a processor and a network interface which are connected through a system bus, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor so as to realize all or part of the steps of the cooling method of the hybrid electric vehicle.
Wherein the network interface is used for network communication, such as sending assigned tasks, etc. It will be appreciated by those skilled in the art that the structure shown in fig. 5 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
The processor may be a CPU, but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (FieldProgrammable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic device discrete hardware components, or the like. A general purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like, that is a control center of a computer device, with various interfaces and lines connecting various parts of the entire computer device.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the computer device by running or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for at least one function (such as a video playing function, an image playing function, etc.), and the like; the storage data area may store data (such as video data, image data, etc.) created according to the use of the cellular phone, etc. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid state storage device.
The embodiments of the present application also provide a computer readable storage medium having a computer program stored thereon, which when executed by a processor, implements all or part of the steps of the aforementioned hybrid vehicle cooling method.
The embodiments of the present application implement all or part of the above-described procedures, or may be implemented by a computer program that instructs related hardware to perform the steps of the above-described methods when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, record medium, USB flash disk, removable hard disk, magnetic disk, optical disk, computer memory, read-Only memory (ROM), random access memory (Random Access memory, RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing numbers in the embodiments of the present application are merely for description, and do not represent advantages or disadvantages of the embodiments.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A hybrid vehicle cooling method using a hybrid vehicle cooling system, comprising the steps of:
detecting a vehicle working mode;
if the vehicle working mode is a pure electric mode, controlling the steering of the four-way reversing valve (24) according to the ambient temperature, the motor controller temperature and the motor temperature to enable the motor cooling module (2) and the battery temperature control module (3) to be in a serial state or a non-serial state;
when the motor cooling module (2) and the battery temperature control module (3) are in a serial state, the working state of the compressor (42), the working state of the motor water pump (25) and the working state of the battery water pump (35) are respectively controlled, so that the air conditioner cooling module (4), the motor cooling module (2) and the battery temperature control module (3) can cool the battery pack (33) and the motor (22) simultaneously;
when the motor cooling module (2) and the battery temperature control module (3) are in a non-series state, the working state of the motor water pump (25) is controlled so that the motor cooling module (2) cools the motor (22) or the motor (22) naturally dissipates heat;
if the vehicle working mode is a hybrid power mode, controlling the steering of the four-way reversing valve (24) according to the water outlet temperature of the motor radiator and whether the battery pack (33) has an additional refrigeration request to enable the motor cooling module (2) and the battery temperature control module (3) to be in a serial state or a non-serial state;
When the motor cooling module (2) and the battery temperature control module (3) are in a serial state, respectively controlling the working states of the motor water pump (25) and the battery water pump (35) so as to enable the motor cooling module (2) and the battery temperature control module (3) to simultaneously cool the battery pack (33) and the motor (22);
when the motor cooling module (2) and the battery temperature control module (3) are in a non-series state, respectively controlling the working state of the motor water pump (25) and the working state of the engine fan (11) so as to enable the motor cooling module (2) and the engine cooling module (1) to cool the motor (22) simultaneously;
the hybrid vehicle cooling system includes:
an engine cooling module (1), the engine cooling module (1) comprising an engine fan (11);
the motor cooling module (2), the motor cooling module (2) comprises a motor radiator (21), a motor (22), a motor controller (23), a four-way reversing valve (24), a motor water pump (25) and a motor expansion water tank (26) which are connected end to end in sequence;
the battery temperature control module (3), the battery temperature control module (3) comprises a battery refrigerator (31), a battery heater (32), a battery pack (33), a battery expansion water tank (34) and a battery water pump (35) which are connected end to end in sequence, and the battery water pump (35) is connected with the battery refrigerator (31) through a four-way reversing valve (24);
The air conditioner cooling module (4), the air conditioner cooling module (4) comprises a condenser (41), a compressor (42) and a vehicle body air conditioner (43) which are connected end to end in sequence, and the battery refrigerator (31) is connected between the condenser (41) and the compressor (42) in a bridging way;
the motor radiator (21) and the condenser (41) are arranged on the engine cooling module (1) side by side and are positioned at the side of the engine fan (11), air blown by the engine fan (11) is blown to the motor radiator (21) and the condenser (41), and the motor cooling module (2) and the battery temperature control module (3) are in a serial state or a non-serial state by controlling the steering of the four-way reversing valve (24).
2. The hybrid vehicle cooling method according to claim 1, wherein controlling the steering of the four-way reversing valve (24) in accordance with the ambient temperature, the motor controller temperature, and the motor temperature places the motor cooling module (2) and the battery temperature control module (3) in a series state or a non-series state, includes:
when the ambient temperature is greater than the ambient temperature threshold and the motor controller temperature is greater than the first motor controller temperature threshold or the motor temperature is greater than the first motor temperature threshold, controlling the motor cooling module (2) and the battery temperature control module (3) to be in a serial state;
when the ambient temperature is less than or equal to the ambient temperature threshold, the motor cooling module (2) and the battery temperature control module (3) are controlled to be in a non-series state.
3. The hybrid vehicle cooling method according to claim 2, wherein controlling the operation state of the motor water pump (25) to cool the motor (22) or naturally dissipate heat of the motor (22) by the motor cooling module (2) includes:
when the motor controller temperature is less than or equal to the first motor controller temperature threshold and the motor temperature is less than or equal to the first motor temperature threshold, the motor water pump (25) is kept in a closed state so as to enable the motor (22) to naturally dissipate heat.
4. The hybrid vehicle cooling method according to claim 1, characterized by further comprising, after the step of detecting the vehicle operation mode:
if the vehicle working mode is a pure fuel mode, the steering of the four-way reversing valve (24) is controlled to enable the motor cooling module (2) and the battery temperature control module (3) to be in a non-series state, and the working states of the motor water pump (25) and the engine fan (11) are respectively controlled according to the temperature of the motor controller and the temperature of the motor, so that the motor cooling module (2) and the engine cooling module (1) can cool the motor (22) simultaneously.
5. The hybrid vehicle cooling method according to claim 1, wherein controlling the steering of the four-way reversing valve (24) in accordance with the motor radiator outlet water temperature and whether or not there is an additional cooling request of the battery pack (33) places the motor cooling module (2) and the battery temperature control module (3) in a series state or a non-series state, includes:
When the water outlet temperature of the motor radiator is smaller than or equal to the water outlet temperature threshold value and the battery pack (33) has an additional refrigeration request, controlling the steering of the four-way reversing valve (24) to enable the motor cooling module (2) and the battery temperature control module (3) to be in a serial state;
when the outlet water temperature of the motor radiator is smaller than or equal to the outlet water temperature threshold value and the battery pack (33) has no additional refrigeration request or the outlet water temperature of the motor radiator is larger than the outlet water temperature threshold value, the steering of the four-way reversing valve (24) is controlled to enable the motor cooling module (2) and the battery temperature control module (3) to be in a non-series state.
6. The hybrid vehicle cooling method according to claim 5, wherein the controlling of the operation state of the motor water pump (25) and the operation state of the engine fan (11) to simultaneously cool the motor (22) by the motor cooling module (2) and the engine cooling module (1) includes:
the motor water pump (25) and the engine fan (11) are respectively started, and the rotating speed of the engine fan (11) is controlled according to the temperature of the motor controller and the temperature of the motor, so that the motor cooling module (2) and the engine cooling module (1) cool the motor (22) simultaneously.
7. A hybrid vehicle cooling apparatus, characterized by comprising: a memory and a processor, the memory having stored therein at least one instruction that is loaded and executed by the processor to implement the hybrid vehicle cooling method of any one of claims 1 to 6.
8. A computer-readable storage medium, characterized by: the computer storage medium stores computer instructions that, when executed by a computer, cause the computer to perform the hybrid vehicle cooling method of any one of claims 1 to 6.
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DE102010046028A1 (en) * 2009-09-22 2011-04-07 Denso Corporation, Kariya-City Air conditioning system for e.g. series-type hybrid car, has controller differentiating output condition from another condition such that frequency outputting request signal is lower than that in other air outlet operating mode
CN106585414B (en) * 2016-12-27 2018-01-19 上海思致汽车工程技术有限公司 A kind of intelligent multiloop electric automobile cooling system
CN110722966B (en) * 2018-12-28 2021-06-22 长城汽车股份有限公司 Vehicle heat dissipation control method and system
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