CN116890596A

CN116890596A - Vehicle cooling system, vehicle thermal management system, vehicle, control method and product

Info

Publication number: CN116890596A
Application number: CN202310761201.2A
Authority: CN
Inventors: 赵文畅; 于维东; 裴国权; 于小峰; 朱天浩; 穆俊达; 孔令建; 赵鹤宇
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2023-06-26
Filing date: 2023-06-26
Publication date: 2023-10-17

Abstract

The application relates to a vehicle cooling system, a vehicle thermal management system, a vehicle, a control method of the vehicle cooling system and related products. The vehicle cooling system comprises a cooling module, a first water return tee joint, a second water return tee joint, a degassing tee joint, an expansion tank, a first water pump and a module to be cooled; the water return port of the expansion tank is connected with the inlet of the first water return tee joint, the degassing port of the expansion tank is connected with the outlet of the degassing tee joint, and the expansion tank is used for buffering the volume change of the cooling liquid; the first outlet of the first water return tee joint is connected with the first inlet of the second water return tee joint, and the second outlet of the first water return tee joint is used for being connected with a heating loop of the vehicle warm air system; the second inlet of the second return water tee is connected with the water outlet of the cooling module, and the outlet of the second return water tee is connected with the inlet of the first water pump. The system can realize the dual-system sharing of the expansion tank, reduce the number of parts, save space and reduce production cost.

Description

Vehicle cooling system, vehicle thermal management system, vehicle, control method and product

Technical Field

The present application relates to the field of vehicle technology, and in particular, to a vehicle cooling system, a vehicle thermal management system, a vehicle, a method, an apparatus, a computer device, a storage medium, and a computer program product for controlling a vehicle cooling system.

Background

With the increasing development of new energy automobiles, the functional requirements of the thermal management system are complicated, diversified and refined, so that the number of parts of the whole automobile thermal management system is increased in an explosive manner. The increase of parts leads to the increase of the number of pipeline joints, thereby leading to the increase of the installation and maintenance cost, and the commercial vehicle has complex working condition, high power consumption requirement and stricter reliability requirement and control method of the system. Meanwhile, the scattered arrangement of parts also brings about the increase of vibration and noise, and challenges to the noise, vibration and harshness (Noise, vibration, harshness, NVH) of the whole vehicle; the addition of parts of the thermal management system also increases the difficulty in the whole vehicle arrangement. Therefore, with the rapid development of new energy commercial vehicles, the structural integration of the system and the optimization of the control method are not slow under the pressure of the whole vehicle energy consumption and the arrangement space.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a vehicle cooling system, a vehicle thermal management system, a vehicle, a control method of the vehicle cooling system, an apparatus, a computer device, a storage medium, and a computer program product that can share an expansion tank with a vehicle warm air system.

In a first aspect, the application provides a vehicle cooling system, which comprises a cooling module, a first return water tee joint, a second return water tee joint, a degassing tee joint, an expansion tank, a first water pump and a module to be cooled; the water return port of the expansion tank is connected with the inlet of the first water return tee joint, the degassing port of the expansion tank is connected with the outlet of the degassing tee joint, and the expansion tank is used for buffering the volume change of the cooling liquid; the first outlet of the first water return tee joint is connected with the first inlet of the second water return tee joint, the second outlet of the first water return tee joint is used for being connected with a heating loop of a vehicle warm air system, and the first water return tee joint is used for shunting the cooling liquid flowing out of the expansion tank; the second inlet of the second water return tee joint is connected with the water outlet of the cooling module, the outlet of the second water return tee joint is connected with the inlet of the first water pump, and the second water return tee joint is used for collecting the cooling liquid flowing out of the cooling module and the expansion tank; the outlet of the first water pump is connected with the inlet of the module to be cooled, and the first water pump is used for driving the cooling liquid; the outlet of the module to be cooled is connected with the water inlet of the cooling module, and the module to be cooled is used for cooling through the cooling liquid; the cooling module is used for radiating the cooling liquid; the first inlet of the degassing tee joint is connected with a degassing port of the outlet of the module to be cooled, the second inlet of the degassing tee joint is used for being connected with a degassing loop of the vehicle warm air system, and the degassing tee joint is used for collecting cooling liquid flowing out of the vehicle cooling system and the vehicle warm air system.

In one embodiment, the vehicle cooling system further comprises a first deaeration throttle and a second deaeration throttle; the first degassing throttle valve is arranged on a first degassing path between a first inlet of the degassing tee joint and a degassing port of an outlet of the module to be radiated, and is used for adjusting the flow of the cooling liquid in the first degassing path and the pressure in the first degassing path; the second degassing throttle valve is arranged on a second degassing path between a second inlet of the degassing tee joint and a degassing port of a heating loop of the vehicle warm air system, and is used for adjusting the flow of the cooling liquid in the second degassing path and the pressure in the second degassing path.

In one embodiment, the vehicle cooling system further includes a temperature detection module, the temperature detection module is respectively connected with the water outlet of the cooling module and the second inlet of the second return water tee, and the temperature detection module is used for obtaining the fluid temperature of the cooling liquid flowing out of the cooling module.

In one embodiment, the vehicle cooling system further comprises a three-way proportional valve and a confluence three-way, and the module to be cooled comprises a first unit to be cooled and a second unit to be cooled; the inlet of the three-way proportional valve is connected with the outlet of the first water pump, the first outlet of the three-way proportional valve is connected with the inlet of the first unit to be cooled, the second outlet of the three-way proportional valve is connected with the inlet of the second unit to be cooled, and the three-way proportional valve is used for adjusting the flow rate of the cooling liquid flowing out of the first water pump to the first unit to be cooled and the second unit to be cooled; the first inlet of the confluence tee is connected with the outlet of the first unit to be cooled, the second inlet of the confluence tee is connected with the outlet of the second unit to be cooled, the outlet of the confluence tee is connected with the water inlet of the cooling module, and the confluence tee is used for collecting cooling liquid flowing out of the first unit to be cooled and the second unit to be cooled.

In one embodiment, the cooling module comprises a radiator and a fan, wherein a water inlet of the radiator is connected with an outlet of the module to be cooled, a water outlet of the radiator is connected with a second inlet of the second return water tee, and the radiator is used for cooling the cooling liquid; the fan is positioned at the first side of the radiator and is used for radiating the heat of the radiator;

the vehicle cooling system further includes a condenser located on a second side of the radiator, the condenser configured to dissipate heat from the vehicle; the first side and the second side are two sides of the radiator which are oppositely arranged.

In a second aspect, the present application also provides a vehicle thermal management system, comprising:

the vehicle cooling system provided in the first aspect described above;

the system comprises a vehicle warm air system, wherein a heating loop of the vehicle warm air system is connected with a water return port of an expansion tank in the vehicle cooling system through a first water return tee joint in the vehicle cooling system, a degassing loop of the vehicle warm air system is connected with a degassing port of the expansion tank through a degassing tee joint in the vehicle cooling system, and the vehicle warm air system is used for heating the vehicle.

In one embodiment, the vehicle warm air system comprises a second water pump, a heater and a warm air core, wherein an inlet of the second water pump is connected with a second outlet of the degassing tee joint, an outlet of the second water pump is connected with an inlet of the heater, the second water pump is used for driving cooling liquid to flow in the heating loop, an inlet of the heater is connected with a second inlet of the degassing tee joint, an outlet of the heater is connected with the warm air core, the heater is used for heating the cooling liquid, an outlet of the warm air core is connected with the second water pump, and the warm air core is used for heating the cooling liquid.

In a third aspect, the present application also provides a vehicle comprising the vehicle cooling system provided in the first aspect or the vehicle thermal management system provided in the second aspect.

In a fourth aspect, the present application further provides a control method of a vehicle cooling system, applied to the vehicle cooling system provided in the first aspect, the method including:

under the condition that the temperature signal of the module to be cooled in the vehicle cooling system fails to be received, controlling a first water pump of the vehicle cooling system to work at the maximum rotation speed, and generating fault information;

And under the condition that the temperature signal is successfully received, judging whether the body temperature of the module to be radiated carried by the temperature signal exceeds a preset temperature threshold, and controlling the first water pump to work under the condition that the body temperature exceeds the preset temperature threshold.

In one embodiment, in case of successful reception of the temperature signal, the method further comprises:

respectively acquiring working states of the first water pump and a temperature detection module of the vehicle cooling system; wherein, when the body temperature exceeds the preset temperature threshold, controlling the first water pump to work comprises:

controlling a fan of a cooling module in the vehicle cooling system to work under the condition that the temperature of the body exceeds the preset temperature threshold value, the first water pump fails and the temperature detection module is normal;

controlling the first water pump to work at the maximum rotating speed and controlling the fan to work under the condition that the temperature of the body exceeds the preset temperature threshold value, the first water pump is normal and the temperature detection module fails;

generating alarm information under the condition that the temperature of the body exceeds the preset temperature threshold value and the first water pump and the temperature detection module are both failed;

And under the condition that the temperature of the body exceeds the preset temperature threshold and the first water pump and the temperature detection module are normal, controlling the first water pump to work.

In one embodiment, when the body temperature exceeds the preset temperature threshold and the first water pump and the temperature detection module are both normal, the controlling the first water pump to work includes:

obtaining the output power of the module to be cooled, and obtaining the fluid temperature of the cooling fluid flowing out of the cooling module by using the temperature detection module;

and controlling the first water pump to work according to the output power and the fluid temperature.

In one embodiment, the obtaining the output power of the module to be cooled includes: acquiring first power output by a first unit to be cooled of the module to be cooled and second power output by a second unit to be cooled of the module to be cooled;

said controlling said first water pump to operate based on said output power and said fluid temperature comprises: controlling the first water pump to work according to the first power, the second power and the fluid temperature;

the method further comprises the steps of: controlling the opening degree of a three-way proportional valve of the vehicle cooling system according to the first power, the second power and the fluid temperature; the opening comprises a first opening and a second opening, the first opening corresponds to a first heat radiation branch of the first unit to be radiated, and the second opening corresponds to a second heat radiation branch of the second unit to be radiated.

In one embodiment, the controlling the first water pump to work and the opening of the three-way proportional valve according to the first power, the second power and the fluid temperature includes:

controlling the first water pump to work at a minimum rotation speed and controlling the three-way proportional valve to open a first heat dissipation branch according to a first preset proportion and to open a second heat dissipation branch according to a second preset proportion under the condition that the output power is smaller than the preset power threshold, the first duration is smaller than a first time threshold and the fluid temperature is smaller than a first preset temperature; wherein the first duration is a duration in which the output power is less than the preset power threshold;

when the output power is smaller than the preset power threshold value, the first duration is smaller than the first time threshold value, and the fluid temperature is larger than the first preset temperature and smaller than the second preset temperature, the rotating speed of the first water pump is linearly regulated according to the preset hysteresis temperature, and the three-way proportional valve is controlled to open a first heat dissipation branch according to a first preset proportion and to open a second heat dissipation branch according to a second preset proportion; wherein the second preset temperature is less than the first preset temperature;

When the first power is larger than the preset power threshold value, the second duration is larger than the second time threshold value, and the fluid temperature is larger than a third preset temperature and smaller than a fourth preset temperature, the rotating speed of the first water pump is linearly regulated according to the preset hysteresis temperature, and the three-way proportional valve is controlled to open the first radiating branch according to a third preset proportion and the second radiating branch according to a fourth preset proportion; wherein the second duration refers to a duration that the first power is greater than the preset power threshold; the third preset temperature is smaller than the fourth preset temperature, the third preset proportion is larger than the first preset proportion, and the fourth preset proportion is smaller than the second preset proportion;

when the second power is larger than the preset power threshold value, the third duration is larger than the third time threshold value, and the fluid temperature is larger than the fifth preset temperature and smaller than the sixth preset temperature, the rotating speed of the first water pump is linearly regulated according to the preset hysteresis temperature, and the three-way proportional valve is controlled to open the first heat dissipation branch according to a fifth preset proportion and open the second heat dissipation branch according to a sixth preset proportion; wherein the third duration refers to a duration that the second sub-output power is greater than the preset power threshold; the fifth preset proportion is smaller than the first preset proportion, and the sixth preset proportion is larger than the second preset proportion.

In one embodiment, the method further comprises:

acquiring the working state of a condenser of the vehicle cooling system;

controlling a fan of a cooling module in the vehicle cooling system to operate at a first rotational speed under the condition that the first water pump is not operated and the condenser is operated;

under the condition that the first water pump works and the condenser does not work, the rotating speed of the fan is controlled in a closed loop mode according to the fluid temperature so that the fluid temperature is in a preset temperature range;

controlling the fan to work according to a target rotating speed under the condition that the first water pump works and the condenser works; the target rotating speed is the maximum value of the first rotating speed and a fan rotating speed required value, and the fan required value corresponds to the heat dissipation requirement of the vehicle cooling system.

In a fifth aspect, the present application also provides a control device for a vehicle cooling system, the device being applied to the vehicle cooling system provided in the first aspect, the device comprising:

the first control module is used for controlling the first water pump of the vehicle cooling system to work at the maximum rotation speed and generating fault information under the condition that the temperature signal of the module to be cooled in the vehicle cooling system fails to be received;

And the second control module is used for judging whether the body temperature of the module to be radiated carried by the temperature signal exceeds a preset temperature threshold value under the condition that the temperature signal is successfully received, and controlling the first water pump to work under the condition that the body temperature exceeds the preset temperature threshold value.

In a sixth aspect, the present application also provides a computer device. The computer device includes a memory storing a computer program and a processor that when executing the computer program implements the steps of the control method of the vehicle cooling system described in the fourth aspect.

In a seventh aspect, the present application also provides a computer-readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the control method of the vehicle cooling system described in the fourth aspect described above.

In an eighth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of the control method of the vehicle cooling system according to the fourth aspect described above.

The vehicle cooling system comprises a cooling module, a first water return tee joint, a second water return tee joint, a degassing tee joint, an expansion tank, a first water pump and a module to be cooled, wherein the first water return tee joint and the degassing tee joint are arranged nearby the expansion tank, and the first water return tee joint is connected to a first water pump inlet and a water return joint is reserved for a vehicle warm air system; the degassing port of the expansion tank is connected with the degassing port of the outlet of the module to be cooled through the degassing tee joint, and the degassing port is reserved for the vehicle warm air system, so that the expansion tank is shared by two systems, the number of parts is reduced, the space is saved, and the production cost is reduced.

Drawings

FIG. 1 is a block diagram of a vehicle cooling system and a vehicle warm air system in one embodiment;

FIG. 2 is one of the flow diagrams of a method of controlling a vehicle cooling system in one embodiment;

FIG. 3 is a flow chart of step S204 of a control method of a vehicle cooling system in one embodiment;

FIG. 4 is a flow chart of step S308 of a control method of a vehicle cooling system in one embodiment;

FIG. 5 is a second flow chart of a method of controlling a cooling system of a vehicle according to one embodiment;

FIG. 6 is a third flow chart of a method of controlling a cooling system of a vehicle in one embodiment;

FIG. 7 is a flow chart of a method of controlling a vehicle cooling system in one embodiment;

FIG. 8 is a block diagram of a control device of a vehicle cooling system in one embodiment;

fig. 9 is an internal structural diagram of a computer device in one embodiment.

Reference numerals illustrate:

the system comprises a 1-vehicle cooling system, 11-cooling modules, 111-radiators, 112-fans, 121-a first return water tee joint, 122-a second return water tee joint, 123-a degassing tee joint, 124-a converging tee joint, 13-an expansion tank, 14-a first water pump, 15-a module to be cooled, 151-an all-in-one controller, 152-a power motor, 153-other parts needing cooling, 161-a first degassing throttle valve, 162-a second degassing throttle valve, 17-a temperature detection module, 18-a tee joint proportional valve, 19-a condenser, 2-a vehicle warm air system, 21-a second water pump, 22-a heater and 23-a warm air core.

Detailed Description

The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.

As described in the background art, with the diversification of functional requirements, the number of parts of the vehicle thermal management system is increased in an explosive manner, thereby causing a plurality of problems. For this, the application provides a vehicle cooling system, a control method, a control device, a computer readable storage medium and a computer program product thereof, which realize that the vehicle cooling system and a vehicle warm air system share an expansion tank, save space, reduce the number of parts and reduce production cost.

The following describes a vehicle cooling system, a vehicle thermal management system and a vehicle according to an embodiment of the present application with reference to fig. 1.

Referring to FIG. 1, in one embodiment, a vehicle cooling system is provided. As shown in fig. 1, the vehicle cooling system 1 includes a cooling module 11, a first return water tee 121, a second return water tee 122, a degassing tee 123, an expansion tank 13, a first water pump 14, and a module to be cooled 15.

The water return port of the expansion tank 13 is connected with the inlet of the first water return tee 121, the air removal port of the expansion tank 13 is connected with the outlet of the air removal tee 123, and the expansion tank 13 is used for buffering the volume change of the cooling liquid. The first outlet of the first water return tee 121 is connected with the first inlet of the second water return tee 122, the second outlet of the first water return tee 121 is used for being connected with a heating loop of the vehicle warm air system 2, and the first water return tee 121 is used for shunting the cooling liquid flowing out of the expansion tank 13. The second inlet of the second return water tee 122 is connected with the water outlet of the cooling module 11, the outlet of the second return water tee 122 is connected with the inlet of the first water pump 14, and the second return water tee 122 is used for collecting the cooling liquid flowing out of the cooling module 11 and the expansion tank 13. The outlet of the first water pump 14 is connected with the inlet of the module to be cooled 15, and the first water pump 14 is used for driving cooling liquid. The first water pump 60 may be an electric water pump, for example. The outlet of the module to be cooled 15 is connected with the water inlet of the cooling module 11, and the module to be cooled 15 is used for cooling by cooling liquid. In the present embodiment, the module to be heat-dissipated 15 refers to a component in the vehicle that needs heat dissipation. For example, the module to be cooled 15 may include an all-in-one controller, a power motor and other components (such as a battery, a vehicle controller, etc.) to be cooled, and the module to be cooled 15 is not limited in any way. The cooling module 11 is used for radiating heat from the cooling liquid. The first inlet of the degassing tee joint 123 is connected with a degassing port of the outlet of the module to be radiated 15, the second inlet of the degassing tee joint 123 is used for being connected with a degassing loop of the vehicle warm air system 2, and the degassing tee joint 123 is used for collecting cooling liquid flowing out of the vehicle cooling system 1 and the vehicle warm air system 2.

In the vehicle cooling system 1, a first water return tee joint 121 and a degassing tee joint 123 are arranged near the expansion tank 13, wherein the first water return tee joint 121 is connected to an inlet of a first water pump 14, and a water return joint is reserved for the vehicle warm air system 2; the degassing port of the expansion tank 13 is connected with the degassing port of the outlet (system high point) of the module 15 to be cooled through the degassing tee joint 123, and the degassing port is reserved for the vehicle warm air system 2, so that the expansion tank 13 is shared by two systems, the number of parts is reduced, the space is saved, and the production cost is reduced.

With continued reference to FIG. 1, in one embodiment, the vehicle cooling system 1 further includes a first deaeration throttle 161 and a second deaeration throttle 162. The first degassing throttle valve 161 is disposed on the first degassing path between the first inlet of the degassing tee 123 and the degassing port of the outlet of the module to be cooled 15, and the first degassing throttle valve 161 is used for adjusting the flow rate of the cooling liquid in the first degassing path and the pressure in the first degassing path. The second degassing throttle valve 162 is disposed on the second degassing path between the second inlet of the degassing tee 123 and the degassing port of the heating circuit of the vehicle warm air system 2, and the second degassing throttle valve 162 is used for adjusting the flow rate of the cooling liquid in the second degassing path and the pressure in the second degassing path. Based on the structure, a throttle valve is additionally arranged in the degassing channel between the vehicle cooling system 1 and the vehicle warm air system 2, so that the defect of insufficient flow of a main loop caused by gas-removing channel diversion is avoided, the influence of unbalanced pressure on the exhaust effect caused by pipeline design and the like is reduced, the mutual influence of the two systems is reduced, and the stability and the reliability of the double systems are ensured.

Alternatively, the first and second degassing throttles 161 and 162 may be disposed inside degassing hoses of the first and second degassing circuits to maintain pressure balance and flow balance. The specific design process comprises the following steps: firstly, through the past experience conclusion, the flow of a common degassing circuit accounts for 5-10% of the total flow, at the moment, the degassing effect can be ensured, and the flow of the main circuit is not greatly divided by the degassing circuit; secondly, the degassing tee joint 123 is as close to the expansion tank 13 as possible, and the tee joint is a Y-shaped tee joint, so that the mutual influence of two degassing loops of the two systems is reduced; again, by simulation and calculation, the structures of the first deaeration throttle valve 161 and the second deaeration throttle valve 162 are designed; and finally, verifying on the real vehicle, and optimizing the structure of the throttling element according to the real vehicle test structure.

With continued reference to fig. 1, in one embodiment, the vehicle cooling system 1 further includes a temperature detection module 17, where the temperature detection module 17 is respectively connected to the water outlet of the cooling module 11 and the second inlet of the second return water tee 122, and the temperature detection module 17 is configured to obtain the fluid temperature of the cooling fluid flowing out of the cooling module 11. The temperature detection module 17 may be a water temperature sensor, for example. Based on this, the temperature detection module 17 can acquire the temperature of the coolant from the cooling module 11 in real time, so as to effectively monitor the cooling module 11 in real time, and ensure the reliability of the vehicle cooling system 1.

With continued reference to FIG. 1, in one embodiment, the vehicle cooling system 1 further includes a three-way proportional valve 18 and a converging three-way valve 124. The module to be heat-dissipated 15 includes a first unit to be heat-dissipated and a second unit to be heat-dissipated. For example, the first unit to be cooled includes the integrated controller 151 and the power motor 152, and the second unit to be cooled may include other components 153 on the vehicle that need to be cooled, such as a battery, a vehicle controller, and the like.

The inlet of the three-way proportional valve 18 is connected with the outlet of the first water pump 14, the first outlet of the three-way proportional valve 18 is connected with the inlet of the first unit to be cooled, the second outlet of the three-way proportional valve 18 is connected with the inlet of the second unit to be cooled, and the three-way proportional valve 18 is used for adjusting the flow of the cooling liquid flowing out of the first water pump 14 to the first unit to be cooled and the second unit to be cooled. The first inlet of the converging tee 124 is connected with the outlet of the first unit to be cooled, the second inlet of the converging tee 124 is connected with the outlet of the second unit to be cooled, the outlet of the converging tee 124 is connected with the water inlet of the cooling module 11, and the converging tee 124 is used for converging the cooling liquid flowing out of the first unit to be cooled and the second unit to be cooled.

According to the vehicle cooling system 1, the independent heat dissipation of the two branches of the first unit to be dissipated and the second unit to be dissipated in the module to be dissipated 15 is realized through the three-way proportional valve 18 and the confluence tee 124, so that the heat dissipation efficiency of the system is improved.

With continued reference to FIG. 1, in one embodiment, the cooling module 11 includes a heat sink 111 and a fan 112. The water inlet of the radiator 111 is connected with the outlet of the module 15 to be cooled, the water outlet of the radiator 111 is connected with the second inlet of the second return water tee 122, and the radiator 111 is used for cooling the coolant. The fan 112 is located at a first side of the heat sink 111, and the fan 112 is used for radiating heat from the heat sink. Furthermore, the vehicle cooling system 1 further comprises a condenser 19, the condenser 19 being located at the second side of the radiator 111, the condenser 19 being adapted to dissipate heat from the vehicle. The first side and the second side are two sides of the radiator 111 opposite to each other. Based on this, the vehicle cooling system 1 is able to radiate heat from the vehicle using the radiator 111, the fan 112, and the condenser 19 to satisfy the heat radiation requirement of the vehicle.

With continued reference to FIG. 1, in one embodiment, a vehicle thermal management system is also provided. As shown in fig. 1, the vehicle thermal management system includes the vehicle cooling system 1 provided in any of the above embodiments, and further includes a vehicle warm air system 2. The heating loop of the vehicle warm air system 2 is connected with the water return port of the expansion tank 13 in the vehicle cooling system 1 through a first water return tee joint 121 in the vehicle cooling system 1, the degassing loop of the vehicle warm air system 2 is connected with the degassing port of the expansion tank 13 through a degassing tee joint 123 in the vehicle cooling system 1, and the vehicle warm air system 2 is used for heating the vehicle.

The vehicle thermal management system, the vehicle cooling system 1 and the vehicle warm air system 2 are connected with the expansion tank 13 through the first water return tee joint 121 and the degassing tee joint 123, so that the expansion tank 13 is shared by two systems, the space is saved, the number of parts is reduced, and the production cost is reduced.

With continued reference to FIG. 1, in one embodiment, another vehicle thermal management system is provided wherein a vehicle warm air system 2 includes a second water pump 21, a heater 22, and a warm air core 23. The inlet of the second water pump 21 is connected with the second outlet of the degassing tee 123, the outlet of the second water pump 21 is connected with the inlet of the heater 22, the second water pump 21 is used for driving cooling liquid to flow in the heating loop, the inlet of the heater 22 is connected with the second inlet of the degassing tee 123, the outlet of the heater 22 is connected with the warm air core 23, the heater 22 is used for heating the cooling liquid, the outlet of the warm air core 23 is connected with the second water pump 21, and the warm air core 23 is used for heating the cooling liquid. Based on the above, the expansion tank 13 is shared by the two systems, so that the space is saved, the number of parts is reduced, and the production cost is reduced.

Based on the vehicle cooling system or the vehicle thermal management system provided in the foregoing embodiments, the embodiment of the present application further provides a vehicle, which may include the vehicle cooling system provided in any one of the foregoing embodiments or the vehicle thermal management system provided in any one of the foregoing embodiments. Therefore, the expansion tank shared by the two systems is realized, the space is saved, the number of parts is reduced, and the production cost is reduced.

Aiming at the vehicle cooling system provided by the embodiment, the application also provides a control method of the vehicle cooling system, and a corresponding system control strategy is provided according to the actual vehicle use condition so as to reduce the complexity of the system, improve the control accuracy of the system, reduce the energy consumption of the system and improve the endurance mileage.

In one embodiment, as shown in fig. 2, a method for controlling a vehicle cooling system is provided, where the method is applied to the vehicle cooling system provided in any of the foregoing embodiments, and this embodiment is applied to a vehicle controller for illustration, and it will be understood that the method may also be applied to other products having a control function, such as an electronic control unit (Electronic Control Unit, ECU), a programmable gate array, and the like. In this embodiment, the method includes the following S202 and S204.

S202: and under the condition that the temperature signal of the module to be cooled in the vehicle cooling system fails to be received, controlling the first water pump of the vehicle cooling system to work at the maximum rotation speed, and generating fault information.

S204: and under the condition that the temperature signal is successfully received, judging whether the body temperature of the module to be cooled carried by the temperature signal exceeds a preset temperature threshold, and controlling the first water pump to work under the condition that the body temperature exceeds the preset temperature threshold.

Taking the vehicle cooling system shown in fig. 1 as an example, the module to be cooled 15 may include an all-in-one controller 151, a power motor 152, and other components 153 to be cooled. Illustratively, the terminal attempts to receive the first temperature signal of the all-in-one controller 151, the second temperature signal of the power motor 152, and the third temperature signal of the other heat dissipating component 153, respectively.

If any one of the first temperature signal, the second temperature signal and the third temperature signal is lost, fault information is generated to indicate a component fault corresponding to the lost signal, and the first water pump 14 is controlled to operate at the maximum rotation speed Nmax. For example, if the first temperature signal is not received, the terminal generates a fault message to prompt the integrated controller 151 to fail and controls the first water pump 14 to operate at the maximum rotation speed Nmax.

If the first temperature signal, the second temperature signal and the third temperature signal are successfully received, judging whether the first body temperature Ta carried by the first temperature signal exceeds a first preset temperature threshold Tx1, whether the second body temperature Tb carried by the second temperature signal exceeds a second preset temperature threshold Tx2 and whether the third body temperature Tc carried by the third temperature signal exceeds a third preset temperature threshold Tx3. If any one of the first body temperature Ta, the second body temperature Tb, and the third body temperature Tc exceeds the corresponding preset temperature threshold Txn (n=1, 2, 3), the first water pump 14 is controlled to operate. If the temperature of each body does not exceed the corresponding preset temperature threshold, the first water pump 14 does not operate. The preset temperature thresholds Txn are preset, may be set according to a test, and are not limited herein.

It should be noted that the foregoing is merely illustrative, and in practical application, the arrangement may be correspondingly performed according to the specific structure of the vehicle cooling system, which is not limited in any way.

According to the control method of the vehicle cooling system, fault removal is carried out according to the temperature signals, reliability of the vehicle cooling system is improved, the first water pump can be controlled to work according to the body temperature carried by the temperature signals of the module to be cooled, control accuracy of the system is improved, and therefore energy consumption of the system is reduced, and endurance mileage is improved.

In one embodiment, the method for controlling the vehicle cooling system may further include, in a case where the terminal receives the temperature signal successfully: and respectively acquiring the working states of the first water pump and the temperature detection module of the vehicle cooling system. In the present embodiment, the operation states include both a failure and a non-failure, i.e., normal operation state. Based on this, as shown in fig. 3, S204 described above: controlling the first water pump to operate in the case that the body temperature exceeds the preset temperature threshold may include steps S302 to S308 as follows.

S302: and under the conditions that the temperature of the body exceeds a preset temperature threshold value, the first water pump fails and the temperature detection module is normal, controlling a fan of a cooling module in the vehicle cooling system to work.

S304: under the conditions that the temperature of the body exceeds a preset temperature threshold value, the first water pump is normal and the temperature detection module fails, the first water pump is controlled to work at the maximum rotating speed, and the fan is controlled to work.

S306: and generating alarm information under the condition that the body temperature exceeds a preset temperature threshold value and the first water pump and the temperature detection module are failed.

S308: and under the condition that the temperature of the body exceeds a preset temperature threshold value and the first water pump and the temperature detection module are normal, controlling the first water pump to work.

It can be understood that after the temperature signal of the module to be cooled is successfully received, if the temperature of any component body in the module to be cooled reaches the preset temperature threshold, in this case, whether the first water pump and the temperature detection module in the vehicle cooling system have faults or not can be judged. If the fault exists, the terminal can report related faults, and the first water pump and the fan are controlled to enter a fault mode according to the fault type.

Specifically, if only the first water pump fails, the fan operates according to the normal control strategy. And if only the temperature detection module has a fault, controlling the first water pump and the fan to work at the maximum rotation speed. If the first water pump and the temperature detection module have faults, the first water pump and the fan are controlled to be correspondingly controlled according to serious treatment measures. If the first water pump and the temperature control module have no faults, the first water pump can be triggered to work at the lowest rotation speed Nmin.

Optionally, it may also be determined whether a fan of the cooling module in the vehicle cooling system is malfunctioning, in which case a malfunction information is generated to indicate a malfunction of the fan. In case the fan does not fail, the control is performed accordingly as described above with respect to fig. 3.

According to the control method of the vehicle cooling system, under the condition that the body temperature of the module to be cooled exceeds the preset temperature threshold, the first water pump and the fan in the cooling module in the vehicle cooling system can be correspondingly controlled according to the working states of the first water pump and the temperature detection module, and the vehicle power consumption is reduced as much as possible while the vehicle cooling requirement is met, so that the vehicle endurance mileage is improved.

In one embodiment, as shown in fig. 4, step S308 described above: controlling the first water pump to operate under the condition that the body temperature exceeds the preset temperature threshold and the first water pump and the temperature detection module are both normal may include the following steps S402 and S404.

S402: and obtaining the output power of the module to be cooled and obtaining the fluid temperature of the cooling liquid flowing out of the cooling module by using the temperature detection module.

S404: and controlling the first water pump to work according to the output power and the fluid temperature.

According to the control method of the vehicle cooling system, comprehensive judgment is performed according to the output power of the module to be cooled and the fluid temperature fed back by the temperature detection module, so that the rotating speed of the first water pump is controlled, the vehicle cooling system can meet the vehicle cooling requirement, and the system cooling efficiency is guaranteed.

In one embodiment, step S402 is described above: the obtaining the output power of the module to be cooled may include: and obtaining the first power output by the first unit to be cooled of the module to be cooled and the second power output by the second unit to be cooled of the module to be cooled. Taking the module to be cooled shown in fig. 1 as an example, the first unit to be cooled includes an all-in-one controller and a power motor, the second unit to be cooled is another component to be cooled, and the first power is the power output by the all-in-one controller and the power motor. The second power refers to the power output by other components needing heat dissipation. Based on this, S404 described above: controlling operation of the first water pump based on the output power and the fluid temperature may include: and controlling the first water pump to work according to the first power, the second power and the fluid temperature.

The control method of the vehicle cooling system may further include: and controlling the opening degree of the three-way proportional valve of the vehicle cooling system according to the first power, the second power and the fluid temperature. The opening comprises a first opening and a second opening, wherein the first opening corresponds to a first heat radiation branch of the first unit to be radiated, and the second opening corresponds to a second heat radiation branch of the second unit to be radiated. That is, the terminal can control the flow of each branch through controlling the opening degree of the three-way proportional valve to each branch according to the output power of each branch and the fluid temperature fed back in real time by the temperature detection module, so that the power consumption of the first water pump is reduced, the water flow distribution of the two branches is more reasonable, and the cooling efficiency of the system is improved.

In one embodiment, as shown in FIG. 5, the steps described above: controlling the first water pump to operate and the opening degree of the three-way proportional valve according to the first power, the second power and the fluid temperature may include the following steps S502 to S508.

S502: and under the conditions that the output power is smaller than a preset power threshold value, the first duration time is smaller than a first time threshold value and the fluid temperature is smaller than a first preset temperature, controlling the first water pump to work at the minimum rotating speed, and controlling the three-way proportional valve to open the first heat dissipation branch according to a first preset proportion and open the second heat dissipation branch according to a second preset proportion.

The output power refers to the total output power of the all-in-one controller, the power motor and other components needing heat dissipation, namely the sum of the first power and the second power. The first duration is a duration in which the output power is less than a preset power threshold. The preset power threshold, the first time threshold, the first preset temperature, the first preset ratio and the second preset ratio are all preset, can be determined according to experiments, and are not limited in any way. The output power is smaller than a preset power threshold value, and the first duration is smaller than a preset time threshold value, so that the vehicle working condition is in a common working mode. In this embodiment, the fluid temperature is designated Thw, and the first preset temperature is designated Thw1. In the normal working mode, if Thw < Thw1, under the condition, the first water pump is controlled to work at the minimum rotation speed Nmin, the three-way proportional valve is controlled to open according to the preset proportion, and the flow of the two branches is controlled.

S504: and under the conditions that the output power is smaller than a preset power threshold value, the first duration time is smaller than a first time threshold value, the fluid temperature is larger than a first preset temperature and smaller than a second preset temperature, the rotating speed of the first water pump is linearly regulated according to the preset hysteresis temperature, and the three-way proportional valve is controlled to open the first heat dissipation branch according to a first preset proportion and open the second heat dissipation branch according to a second preset proportion.

Wherein the second preset temperature is smaller than the first preset temperature, in this embodiment, the second preset temperature is referred to as Thw2. The second preset temperature and the preset hysteresis temperature are preset and can be determined according to experiments, and are not limited in any way. The preset hysteresis temperature may be set to 1 ℃, 2 ℃, 3 ℃, 5 ℃ or any other value. In the normal working mode, if Thw1 is less than Thw2, the rotation speed of the first water pump can be linearly adjusted and is lagged by 3 ℃ (to be calibrated), and the three-way proportional valve is controlled to control the flow of the two branches according to the opening of the preset proportion.

S506: and under the condition that the first power is larger than a preset power threshold value, the second duration time is larger than a second time threshold value, the fluid temperature is larger than a third preset temperature and smaller than a fourth preset temperature, the rotating speed of the first water pump is linearly regulated according to the preset hysteresis temperature, and the three-way proportional valve is controlled to open the first heat dissipation branch according to the third preset proportion and the second heat dissipation branch according to the fourth preset proportion.

The second duration refers to a duration that the first power is greater than a preset power threshold. The third preset temperature is less than the fourth preset temperature, the third preset proportion is greater than the first preset proportion, and the fourth preset proportion is less than the second preset proportion. The second time threshold, the third preset temperature, the fourth preset temperature, the third preset ratio and the fourth preset ratio are all preset, can be determined according to experiments, and are not limited in any way. In this embodiment, the third preset temperature is designated Thw3, and the fourth preset temperature is designated Thw4. If the first power output by the all-in-one controller and the power motor is larger than a preset power threshold value and the duration is larger than the threshold value, the vehicle is in a motor high-power output working mode, in this case, the opening degree of the three-way proportional valve is adjusted, the opening degree of a first heat dissipation branch where the all-in-one controller and the power motor are located is increased, the opening degree of a second heat dissipation branch where other heat dissipation components are located is reduced, the rotating speed of the first water pump is correspondingly reduced, and meanwhile, the temperature threshold value of the temperature detection module is controlled to be within a range from Thw3 to Thw4. Illustratively, in this case, the first water pump speed is linearly adjusted and hysteresis is 3 ℃ (calibration is required).

Under the working condition, the heat dissipation capacity of the branch where the all-in-one controller and the power motor are located is large, the heat dissipation capacity of other parts needing heat dissipation is small even no heat dissipation capacity, the opening degree of the three-way proportional valve is adjusted, the water flow of the branch where the all-in-one controller and the power motor are located is increased, meanwhile, the rotating speed of the water pump can be correspondingly reduced, and the energy consumption of the water pump is reduced.

S508: and under the condition that the second power is larger than a preset power threshold value, the third duration is larger than a third time threshold value and the fluid temperature is larger than a fifth preset temperature and smaller than a sixth preset temperature, the rotating speed of the first water pump is linearly regulated according to the preset hysteresis temperature, and the three-way proportional valve is controlled to open the first heat dissipation branch according to the fifth preset proportion and the second heat dissipation branch according to the sixth preset proportion.

The third duration refers to a duration that the second sub-output power is greater than a preset power threshold. The fifth preset proportion is smaller than the first preset proportion, and the sixth preset proportion is larger than the second preset proportion. The third time threshold, the fifth preset temperature, the sixth preset temperature, the fifth preset proportion and the sixth preset proportion are all preset, can be determined according to experiments, and are not limited in any way. In this embodiment, the fifth preset temperature is designated Thw5, and the sixth preset temperature is designated Thw6. If the second power output by other parts needing to be cooled is larger than the preset power threshold value and the duration is larger than the threshold value, the vehicle is in a high-power output working mode of the other parts needing to be cooled, in this case, the opening degree of the three-way proportional valve is adjusted, the opening degree of the first cooling branch where the all-in-one controller and the power motor are arranged is reduced, the opening degree of the second cooling branch where the other parts needing to be cooled are arranged is increased, the rotating speed of the first water pump is correspondingly reduced, and meanwhile, the temperature threshold value of the temperature detection module is controlled to be within the range from Thw5 to Thw6. Illustratively, in this case, the first water pump speed is linearly adjusted and hysteresis is 3 ℃ (calibration is required).

Under the working condition, the heat dissipation capacity of other parts needing to be dissipated is large, the heat dissipation capacity of the all-in-one controller and the power motor branch is small, the opening degree of the three-way proportional valve is adjusted, the water flow of the branch where the other parts needing to be dissipated are located is increased, meanwhile, the rotating speed of the water pump can be correspondingly reduced, and the energy consumption of the water pump is reduced.

According to the control method of the vehicle cooling system, the actual use working conditions of the vehicle are considered, under different working conditions, the power consumption of the water pump can be reduced through the flow adjustment of the three-way proportional valve, the water flow distribution is more reasonable, the complexity of the system is reduced, the control accuracy of the system is improved, the energy consumption of the system is reduced, and the endurance mileage is improved. The whole model and the control principle are clear, the structure is simple and compact, and the operation is reliable.

In one embodiment, as shown in fig. 6, the control method of the vehicle cooling system may further include the following steps S602 to S608.

S602: the operating state of a condenser of a vehicle cooling system is acquired.

S604: the fan of the cooling module in the vehicle cooling system is controlled to operate at a first rotational speed with the first water pump inactive and the condenser active. The condenser belongs to a vehicle air conditioning system, and under the condition that only the condenser works, the rotating speed of the fan can work according to the rotating speed N1 required by the air conditioning system so as to meet the working requirement of the air conditioning system.

S606: under the condition that the first water pump works and the condenser does not work, the rotating speed of the fan is controlled in a closed loop mode according to the fluid temperature so that the fluid temperature is within a preset temperature range. The preset temperature range is preset, can be determined according to experiments, and is not limited herein. Illustratively, the fluid temperature Thw obtained by the temperature detection module is maintained at tf±2 ℃, where Tf is a preset temperature.

S608: when the first water pump is operated and the condenser is operated, the fan is controlled to operate at a target rotation speed. The target rotating speed is the maximum value of the first rotating speed and a fan rotating speed demand value, and the fan demand value corresponds to the heat dissipation demand of the vehicle cooling system.

According to the control method of the vehicle cooling system, the fans of the cooling module are controlled according to the working states of the first water pump and the condenser in the cooling system, so that the cooling system and the air conditioning system, namely the condenser, share the fans, and the number of parts is further reduced on the premise of meeting the vehicle heat dissipation requirement, thereby reducing the cost and saving the space.

For better understanding, a control method of the vehicle cooling system provided in the above embodiment will be described below with reference to fig. 7 by taking the vehicle cooling system provided in fig. 1 as an example.

First, a body temperature signal of each heat sink is received. Specifically, a first temperature signal of the all-in-one controller, a second temperature signal of the power motor and a third temperature signal of other parts needing heat dissipation are received. If any temperature signal is lost, the electric water pump is controlled to run at the maximum rotation speed Nmax and related faults are reported, and the electric fan works according to a normal control strategy. If all the signals are received, the process advances to step S704.

Then, it is determined whether the body temperature of each component reaches the trigger temperature. Specifically, it is determined whether the body temperature Ta of the all-in-one controller reaches the trigger temperature Tx1, the power motor body temperature Tb reaches the trigger temperature Tx2, and the body temperature Tc of the other heat dissipation required component reaches the trigger temperature Tx3. If the trigger temperature Tx is not reached, the first water pump, namely the electric water pump, does not work. If any component body temperature reaches the trigger temperature Tx, the process proceeds to step S706.

Then, it is determined whether or not the electric water pump and the water temperature sensor have a failure. If the fault exists, the controller needs to report related faults, and the electric water pump and the electric fan enter a fault mode according to the fault type. Specifically, if only the electric water pump fails, the electric fan works according to a normal control strategy; if only the water temperature sensor has a fault, controlling the electric water pump and the electric fan to work at the maximum rotation speed Nmax; when the faults occur at the same time, the electric water pump and the electric fan are controlled according to serious treatment measures. If no fault exists, the electric water pump is triggered to operate at the lowest rotation speed Nmin, and the process proceeds to step S708.

And thirdly, comprehensively judging according to the body temperature of each part and the temperature Thw of the water temperature sensor, and controlling the working rotating speed of the electric water pump and the opening of the three-way proportional valve. There are several cases:

in the normal operation mode, that is, the output power and duration of the power motor, the all-in-one controller and other heat dissipation components are lower than the threshold value, the temperature of the component body is verified. If Thw is less than Thw1, the electric water pump works at the minimum rotation speed Nmin, and the three-way proportional valve is opened according to a default proportion; if hw is more than Thw1, linearly adjusting and hysteresis the rotation speed of the water pump to 3 ℃ (to be calibrated) according to the temperature Thw of the water temperature sensor at the temperatures Thw 1-Thw 2, and opening the three-way proportional valve according to a default proportion;

and under the working mode of high power output of the motor, namely the output power and duration of the power motor and the all-in-one controller are higher than the threshold value, the temperature of the part body is verified. At this time, the three-way proportional valve adjusts the opening degree, increases the opening degree of the motor and the opening degree of the multiple-in-one branch, correspondingly reduces the rotating speed of the electric water pump, controls the temperature threshold value and correspondingly adjusts the rotating speed of the corresponding water pump (the temperature of the water temperature sensor Thw is between the temperatures Thw3 and Thw4, and the rotating speed of the water pump is linearly adjusted and is lagged to 3 ℃ (the calibration is needed).

And in the high-power output working mode of other heat dissipation components, namely, the output power and the duration time of the other heat dissipation components are higher than the threshold value, the temperature of the component body is verified. At this time, the three-way proportional valve adjusts the opening degree, increases the opening degree of the branch of other heat dissipation components, correspondingly reduces the rotating speed of the electric water pump, controls the temperature threshold and correspondingly adjusts the rotating speed of the water pump (the temperature of the water temperature sensor Thw is between the temperatures Thw5 and Thw6, and the rotating speed of the water pump is linearly adjusted and is lagged back to 3 ℃ (the calibration is needed).

And finally, controlling the fan according to the working condition of the electric water pump and the working state of the air conditioning system. The electric water pump starts to work or the air conditioning system works, and the fan is triggered to work; the working speed of the fan is closed-loop controlled according to the sensor temperature Thw: if only the air conditioning system works, the fan rotating speed is according to the fan rotating speed N1 for air conditioning; if the air conditioning system does not work, only the electric water pump works, and the electric fan speed carries out synchronous closed-loop control on the fan speed according to the water temperature sensor temperature Thw, so that the first water temperature sensor temperature Thw is kept at Tf+/-2 ℃; if the air conditioning system and the electric water pump work simultaneously, the control is performed according to the larger value of the fan rotating speed N1 and the fan rotating speed requirement of the air conditioning system.

According to the vehicle cooling system and the control method thereof, the actual use working conditions of the vehicle are considered, under different working conditions, the power consumption of the water pump can be reduced through the flow adjustment of the proportional valve, the water flow distribution is more reasonable, the complexity of the system is reduced, the control accuracy of the system is improved, the energy consumption of the system is reduced, and the endurance mileage is improved. The whole model and the control principle are clear, the structure is simple and compact, and the operation is reliable; the water return and degassing interfaces are reserved for the warm air system in the vehicle cooling system, so that the number of parts can be reduced, the space is saved, and the production cost is reduced. And by the design of the system scheme, the performance balance of the two systems is realized, and the mutual influence is reduced.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiment of the application also provides a control device of the vehicle cooling system for realizing the control method of the vehicle cooling system. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the control device of the one or more vehicle cooling systems provided below may be referred to the limitation of the control method of the vehicle cooling system hereinabove, and will not be repeated here.

In one embodiment, as shown in fig. 8, there is provided a control device 800 of a vehicle cooling system, which is applied to the vehicle cooling system provided in any one of the above embodiments, and the control device 800 of the vehicle cooling system includes a first control module 801 and a second control module 802. The first control module 801 is configured to control a first water pump of the vehicle cooling system to operate at a maximum rotation speed and generate fault information when receiving a temperature signal of a module to be cooled in the vehicle cooling system fails. The second control module 802 is configured to determine whether the body temperature of the module to be cooled carried by the temperature signal exceeds a preset temperature threshold when the temperature signal is successfully received, and control the first water pump to operate when the body temperature exceeds the preset temperature threshold.

In one embodiment, the control device of the vehicle cooling system further includes an acquisition module, where the acquisition module is configured to acquire the working states of the first water pump and the temperature detection module of the vehicle cooling system, respectively, when the temperature signal is received successfully. The second control module is further used for controlling a fan of the cooling module to work in the vehicle cooling system under the conditions that the temperature of the body exceeds the preset temperature threshold value, the first water pump fails and the temperature detection module is normal; controlling the first water pump to work at the maximum rotating speed and controlling the fan to work under the condition that the temperature of the body exceeds the preset temperature threshold value, the first water pump is normal and the temperature detection module fails; generating alarm information under the condition that the temperature of the body exceeds the preset temperature threshold value and the first water pump and the temperature detection module are both failed; and under the condition that the temperature of the body exceeds the preset temperature threshold and the first water pump and the temperature detection module are normal, controlling the first water pump to work.

In one embodiment, the second control module is further configured to obtain an output power of the module to be cooled, and obtain a fluid temperature of the cooling fluid flowing out of the cooling module by using the temperature detection module; and controlling the first water pump to work according to the output power and the fluid temperature.

In one embodiment, the second control module is further configured to obtain a first power output by a first unit to be cooled of the module to be cooled and a second power output by a second unit to be cooled of the module to be cooled; controlling the first water pump to work according to the first power, the second power and the fluid temperature; controlling the opening degree of a three-way proportional valve of the vehicle cooling system according to the first power, the second power and the fluid temperature; the opening comprises a first opening and a second opening, the first opening corresponds to a first heat radiation branch of the first unit to be radiated, and the second opening corresponds to a second heat radiation branch of the second unit to be radiated.

In one embodiment, the second control module is further configured to: controlling the first water pump to work at a minimum rotation speed and controlling the three-way proportional valve to open a first heat dissipation branch according to a first preset proportion and to open a second heat dissipation branch according to a second preset proportion under the condition that the output power is smaller than the preset power threshold, the first duration is smaller than a first time threshold and the fluid temperature is smaller than a first preset temperature; wherein the first duration is a duration in which the output power is less than the preset power threshold;

In one embodiment, the control device of the vehicle cooling system further comprises an acquisition module for acquiring an operating state of a condenser of the vehicle cooling system. The second control module is further used for controlling a fan of the cooling module in the vehicle cooling system to work at a first rotation speed under the condition that the first water pump is not working and the condenser is working; under the condition that the first water pump works and the condenser does not work, the rotating speed of the fan is controlled in a closed loop mode according to the fluid temperature so that the fluid temperature is in a preset temperature range; controlling the fan to work according to a target rotating speed under the condition that the first water pump works and the condenser works; the target rotating speed is the maximum value of the first rotating speed and a fan rotating speed required value, and the fan required value corresponds to the heat dissipation requirement of the vehicle cooling system.

The respective modules in the control device of the vehicle cooling system described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 9. The computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used for storing temperature signals, output power, etc. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method of controlling a vehicle cooling system.

It will be appreciated by persons skilled in the art that the architecture shown in fig. 9 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting as to the computer device to which the present inventive arrangements are applicable, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory storing a computer program, the processor implementing the steps of the method for controlling a vehicle cooling system provided in any of the embodiments described above when the computer program is executed.

In one embodiment, a computer readable storage medium is provided, on which a computer program is stored which, when executed by a processor, implements the steps of the control method of the vehicle cooling system provided by any of the above embodiments.

In one embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the control method of the vehicle cooling system provided by any of the above embodiments.

The data (including, but not limited to, data for analysis, data stored, data displayed, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.

Claims

1. The vehicle cooling system is characterized by comprising a cooling module, a first water return tee joint, a second water return tee joint, a degassing tee joint, an expansion tank, a first water pump and a module to be cooled; the water return port of the expansion tank is connected with the inlet of the first water return tee joint, the degassing port of the expansion tank is connected with the outlet of the degassing tee joint, and the expansion tank is used for buffering the volume change of the cooling liquid; the first outlet of the first water return tee joint is connected with the first inlet of the second water return tee joint, the second outlet of the first water return tee joint is used for being connected with a heating loop of a vehicle warm air system, and the first water return tee joint is used for shunting the cooling liquid flowing out of the expansion tank; the second inlet of the second water return tee joint is connected with the water outlet of the cooling module, the outlet of the second water return tee joint is connected with the inlet of the first water pump, and the second water return tee joint is used for collecting the cooling liquid flowing out of the cooling module and the expansion tank; the outlet of the first water pump is connected with the inlet of the module to be cooled, and the first water pump is used for driving the cooling liquid; the outlet of the module to be cooled is connected with the water inlet of the cooling module, and the module to be cooled is used for cooling through the cooling liquid; the cooling module is used for radiating the cooling liquid; the first inlet of the degassing tee joint is connected with a degassing port of the outlet of the module to be cooled, the second inlet of the degassing tee joint is used for being connected with a degassing loop of the vehicle warm air system, and the degassing tee joint is used for collecting cooling liquid flowing out of the vehicle cooling system and the vehicle warm air system.

2. The vehicle cooling system of claim 1, further comprising a first deaeration throttle and a second deaeration throttle; the first degassing throttle valve is arranged on a first degassing path between a first inlet of the degassing tee joint and a degassing port of an outlet of the module to be radiated, and is used for adjusting the flow of the cooling liquid in the first degassing path and the pressure in the first degassing path; the second degassing throttle valve is arranged on a second degassing path between a second inlet of the degassing tee joint and a degassing port of a heating loop of the vehicle warm air system, and is used for adjusting the flow of the cooling liquid in the second degassing path and the pressure in the second degassing path.

3. The vehicle cooling system of claim 1, further comprising a temperature detection module connected to the water outlet of the cooling module and the second inlet of the second return tee, respectively, the temperature detection module configured to obtain a fluid temperature of the cooling fluid flowing out of the cooling module.

4. The vehicle cooling system of claim 1, further comprising a three-way proportional valve and a converging three-way joint, the module to be cooled comprising a first unit to be cooled and a second unit to be cooled; the inlet of the three-way proportional valve is connected with the outlet of the first water pump, the first outlet of the three-way proportional valve is connected with the inlet of the first unit to be cooled, the second outlet of the three-way proportional valve is connected with the inlet of the second unit to be cooled, and the three-way proportional valve is used for adjusting the flow rate of the cooling liquid flowing out of the first water pump to the first unit to be cooled and the second unit to be cooled; the first inlet of the confluence tee is connected with the outlet of the first unit to be cooled, the second inlet of the confluence tee is connected with the outlet of the second unit to be cooled, the outlet of the confluence tee is connected with the water inlet of the cooling module, and the confluence tee is used for collecting cooling liquid flowing out of the first unit to be cooled and the second unit to be cooled.

5. The vehicle cooling system of claim 1, wherein the cooling module comprises a radiator and a fan, wherein a water inlet of the radiator is connected with an outlet of the module to be cooled, a water outlet of the radiator is connected with a second inlet of the second return water tee, and the radiator is used for cooling the cooling liquid; the fan is positioned at the first side of the radiator and is used for radiating the heat of the radiator;

6. A vehicle thermal management system, the vehicle thermal management system comprising:

the vehicle cooling system according to any one of claims 1 to 5;

7. The vehicle thermal management system of claim 6, wherein the vehicle warm air system comprises the second water pump, a heater, and a warm air core, wherein an inlet of the second water pump is connected to a second outlet of the deaeration tee, an outlet of the second water pump is connected to an inlet of the heater, the second water pump is used to drive cooling fluid to flow in the heating circuit, an inlet of the heater is connected to a second inlet of the deaeration tee, an outlet of the heater is connected to the warm air core, the heater is used to heat the cooling fluid, an outlet of the warm air core is connected to the second water pump, and the warm air core is used to heat the cooling fluid.

8. A vehicle, characterized in that it comprises a vehicle cooling system according to any one of claims 1 to 5 or a vehicle thermal management system according to claim 6 or 7.

9. A control method of a vehicle cooling system, characterized by being applied to the vehicle cooling system according to any one of claims 1 to 5, the method comprising:

10. The method of claim 9, wherein in the event of successful receipt of the temperature signal, the method further comprises:

11. The method of claim 10, wherein controlling the first water pump to operate if the body temperature exceeds the preset temperature threshold and the first water pump and the temperature detection module are both normal comprises:

12. The method of claim 11, wherein the obtaining the output power of the module to be heat-dissipated comprises: acquiring first power output by a first unit to be cooled of the module to be cooled and second power output by a second unit to be cooled of the module to be cooled;

13. The method of claim 12, wherein controlling the opening of the three-way proportional valve in response to the first power, the second power, and the fluid temperature comprises:

14. The method according to any one of claims 11-13, further comprising:

acquiring the working state of a condenser of the vehicle cooling system;

15. A control device of a vehicle cooling system, characterized in that the device is applied to a vehicle cooling system according to any one of claims 1 to 5, the device comprising:

16. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 6 to 14 when the computer program is executed.

17. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 6 to 14.

18. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the method of any of claims 6 to 14.