Control system, method, storage medium and program product for a vehicle cooling system

Abstract

The application discloses a control system, a method, a storage medium and a program product of a vehicle cooling system. The system comprises a power equipment cooling circuit, a warm air heating circuit, a cooling liquid heat exchange device and a controller. The power equipment cooling circuit is used for cooling the power equipment by the first cooling liquid based on the equipment cooling parameter sent by the controller. The warm air heating circuit is used for heating the vehicle-mounted equipment by the second cooling liquid based on the warm air heating parameter sent by the controller. The cooling liquid heat exchange device is used for heat exchanging the first cooling liquid and the second cooling liquid based on the heat exchange parameter sent by the controller. The controller is used for determining at least one working mode of the cooling system based on the equipment temperature of the power equipment and the control instruction input by the user on the vehicle, and constructing a system control strategy based on the working mode and the operation parameter of the vehicle-mounted equipment.

Description

Technical Field

[0001] This invention relates to the field of vehicle control, and more specifically, to a control system, method, storage medium, and program product for a vehicle cooling system. Background Technology

[0002] In common vehicle cooling systems, direct cooling devices, such as fans and radiators, are usually connected to power devices that require heat dissipation, such as batteries and motors, to cool the power devices. However, this method usually cannot reuse the heat generated by the power devices, such as using this heat to heat other devices that have heat requirements, thus wasting a lot of heat resources.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This invention provides a control system, method, storage medium, and program product for a vehicle cooling system, to at least solve the technical problem in the related art of low reuse rate of heat generated by the cooling system, which leads to waste of heat resources.

[0005] According to one aspect of the present invention, a control system for a vehicle cooling system is provided, comprising: a power equipment cooling circuit connected to a controller and a power equipment on the vehicle, for controlling a first coolant to cool the power equipment based on equipment cooling parameters sent by the controller, wherein the first coolant flows in the power equipment cooling circuit, and the power equipment is used to characterize equipment that provides power to the vehicle; a heating circuit connected to the controller and at least one on-board device on the vehicle, for controlling a second coolant to heat the on-board device based on heating parameters sent by the controller, wherein the on-board device is used to characterize other equipment on the vehicle besides the power equipment; a coolant heat exchange device deployed between the power equipment and the heating circuit and connected to the controller, for exchanging heat between the first coolant and the second coolant based on heat exchange parameters sent by the controller; and a controller connected to the power equipment and the on-board device, for determining at least one operating mode of the cooling system based on the equipment temperature of the power equipment and control commands input by a user on the vehicle, and constructing a system control strategy based on the operating mode and the operating parameters of the on-board device, wherein the system control strategy includes parameters including at least: equipment cooling parameters, heating parameters, and heat exchange parameters.

[0006] In this embodiment, the heating parameters include at least: coolant heating parameters, heater pump operating parameters, and heat distribution parameters. The heating circuit includes: a water heater for heating the second coolant based on the coolant heating parameters; a heater connected to the water heater for controlling the flow of the second coolant in the heating circuit based on the heater operating parameters; and a heat distribution device connected to the water heater, the coolant heat exchanger, and the vehicle-mounted equipment for controlling the flow rate of the second coolant from the water heater into the coolant heat exchanger and the vehicle-mounted equipment based on the heat distribution parameters.

[0007] In this embodiment, the equipment cooling parameters include at least: coolant cooling parameters, first water pump operating parameters, second water pump operating parameters, and coolant distribution parameters. The power equipment cooling circuit includes: a coolant cooling device for cooling the first coolant based on the coolant cooling parameters; a first water pump connected to the coolant cooling device, the power equipment, and the coolant heat exchange device for drawing the first coolant to the power equipment or the coolant heat exchange device based on the first water pump operating parameters; a second water pump connected to the coolant heat exchange device and the power equipment for drawing the first coolant to the power equipment based on the second water pump operating parameters; and a coolant distribution device connected to the first water pump, the coolant cooling device, and the power equipment for controlling the flow rate of the first coolant flowing from the power equipment into the coolant cooling device and the first water pump based on the coolant distribution parameters.

[0008] In this embodiment, the power equipment cooling circuit includes at least a fuel cell stack cooling circuit and an electric drive cooling circuit. The coolant heat exchange device includes a three-layer flow water-to-water heat exchanger. The fuel cell stack cooling circuit is used to cool the vehicle fuel cell stack, and the electric drive cooling circuit is used to cool the electric drive equipment on the vehicle. The first layer of the three-layer flow water-to-water heat exchanger is connected to the fuel cell stack cooling circuit, the second layer of the three-layer flow water-to-water heat exchanger is connected to the heating circuit, and the third layer of the three-layer flow water-to-water heat exchanger is connected to the electric drive cooling circuit.

[0009] In this embodiment, the equipment cooling parameters include: electric water pump operating parameters, electric coolant distribution parameters, and electric heat dissipation parameters. The electric cooling circuit includes: an electric drive device connected to a controller, used to send the electric drive temperature of the electric drive device to the controller; an electric water pump connected to the controller, used to draw a third coolant to a three-layer flow water-to-water heat exchanger based on the electric water pump operating parameters sent by the controller, wherein the third coolant flows in the electric cooling circuit; an electric coolant distribution device connected to the controller, used to distribute the third coolant flowing out of the three-layer flow water-to-water heat exchanger to the electric heat dissipation device and the electric drive device based on the electric coolant distribution parameters sent by the controller; an electric heat dissipation device connected to the controller, used to perform heat dissipation treatment on the third coolant based on the electric heat dissipation parameters sent by the controller; and a controller used to construct the electric water pump operating parameters based on the electric drive temperature.

[0010] According to another aspect of the present invention, a control method for a vehicle cooling system is also provided, comprising: acquiring the device temperature of at least one power device on the vehicle, the operating parameters and control commands of at least one on-board device; determining at least one operating mode of the cooling system based on the device temperature and control commands; constructing a system control strategy for the cooling system based on the operating mode and operating parameters; and controlling the operation of the cooling system based on the system control strategy.

[0011] In this embodiment, a system control strategy for the cooling system is constructed based on the operating mode and operating parameters, including: obtaining a heat demand table matching the operating mode, and obtaining the heat demand quantity matching the device identifier and operating parameters of the on-board equipment from the heat demand table, wherein the heat demand table is used to store the mapping relationship between the device identifier, operating parameters and heat demand quantity; constructing system operating parameters for the cooling system under the operating mode based on the heat demand quantity; summarizing the system operating parameters based on the correlation between the operating modes to obtain the target operating parameters; and constructing a system control strategy based on the target operating parameters.

[0012] In this embodiment, the power equipment includes at least: a vehicle battery, a vehicle motor, a vehicle fuel cell stack, and an electric drive system. The operating modes include at least: a battery cooling mode, a motor cooling mode, a battery heating mode, a passenger compartment heating mode, a fuel cell stack cold start heating mode, a fuel cell stack waste heat utilization mode, and an electric drive waste heat utilization mode. Based on the equipment temperature and control commands, at least one operating mode of the cooling system is currently in is determined, including: determining the operating mode as a battery cooling mode in response to the vehicle battery temperature being greater than a first battery temperature; and determining the operating mode as a battery heating mode in response to the battery temperature being less than a second battery temperature, wherein the second battery temperature is less than the first battery temperature. The system is configured to: 1. Determine the operating mode as motor cooling mode if the vehicle motor temperature is higher than the first motor temperature; 2. Determine the operating mode as motor heating mode if the motor temperature is lower than the second motor temperature, where the second motor temperature is lower than the first motor temperature; 3. Determine the operating mode as fuel cell cold start heating mode if the control command is to start the vehicle fuel cell stack; 4. Determine the operating mode as fuel cell waste heat utilization mode if the vehicle fuel cell stack temperature is within a safe range and the vehicle fuel cell stack temperature is higher than a preset fuel cell stack temperature, where the preset fuel cell stack temperature is within a safe range; 5. Determine the operating mode as electric drive waste heat utilization mode if the electric drive equipment temperature is higher than a preset electric drive temperature.

[0013] In this embodiment, the cooling system includes at least: a water heater, a warm air pump, a heat distribution device, a fuel cell stack water-to-water heat exchanger, a second water pump, and a coolant distribution device. The system control strategy includes at least the following parameters: water heater heating parameters, warm air pump control parameters, heat distribution parameters, heat exchange parameters, second water pump operating parameters, and coolant distribution parameters. In response to the fuel cell stack cold start heating mode, the cooling system is controlled based on the system control strategy, including: controlling the water heater to heat the second coolant according to the water heater heating parameters, and controlling the warm air pump to heat the second coolant according to the warm air pump operating parameters. The system controls the heater pump to draw heated second coolant to the heat distribution device according to the parameters; controls the heat distribution device to distribute heated second coolant to the fuel cell stack water-to-water heat exchanger according to the heat distribution parameters; controls the fuel cell stack water-to-water heat exchanger to exchange heat between heated second coolant and first coolant according to the heat exchange parameters; controls the second water pump to draw heated first coolant to the vehicle fuel cell stack according to the second water pump operating parameters to heat the vehicle fuel cell stack; and controls the coolant distribution device to distribute the first coolant flowing out of the vehicle fuel cell stack to the fuel cell stack water-to-water heat exchanger according to the coolant distribution parameters.

[0014] In this embodiment, in response to the working mode being the fuel cell waste heat utilization mode, the cooling system is controlled to operate based on a system control strategy, including: controlling the coolant distribution device to distribute the first coolant flowing out of the fuel cell to the fuel cell water-to-water heat exchanger according to coolant distribution parameters; controlling the fuel cell water-to-water heat exchanger to exchange heat between the first coolant and the second coolant according to heat exchange parameters; controlling the water heater to heat the second coolant after heat exchange according to water heating parameters, so that the second temperature of the second coolant reaches a preset temperature; controlling the heater pump to draw the heated second coolant to the heat distribution device according to heater pump control parameters, and controlling the heat distribution device to distribute the heated second coolant to the on-board equipment according to heat distribution parameters.

[0015] In this embodiment, the cooling system further includes an electric water pump and an electric coolant distribution device. The system control strategy includes parameters such as electric water pump operating parameters and electric coolant distribution parameters. In response to the operating mode being electric drive waste heat utilization mode, the cooling system is controlled to operate based on the system control strategy, including: drawing a third coolant flowing from the electric drive equipment to a coolant heat exchange device according to the electric water pump operating parameters; controlling the coolant heat exchange device to exchange heat between the third coolant, the first coolant, and the second coolant according to the heat exchange parameters; and controlling the electric coolant distribution device to distribute the third coolant flowing from the coolant heat exchange device to the electric drive equipment according to the electric coolant distribution parameters.

[0016] According to another aspect of the present invention, a vehicle phase change energy storage material is also provided, comprising: a phase change energy storage device storing an executable program; and a controller for running the program, wherein the program executes the methods of various embodiments of the present invention during runtime.

[0017] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is executed, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of the present invention.

[0018] According to another aspect of the present invention, a computer program product is also provided, including a computer program that, when executed by a processor, implements the methods of various embodiments of the present invention.

[0019] According to another aspect of the present invention, a computer program product is also provided, including a non-volatile computer-readable storage medium storing a computer program that, when executed by a processor, implements the methods of various embodiments of the present invention.

[0020] According to another aspect of the present invention, a computer program is also provided, which, when executed by a processor, implements the methods of the various embodiments of the present invention.

[0021] In this embodiment of the invention, a control system for a vehicle cooling system is adopted, comprising a power equipment cooling circuit, a heating circuit, a coolant heat exchange device, and a controller. By determining at least one operating mode of the cooling system in real time based on the equipment temperature of the power equipment and the control commands input by the user, and formulating a system control strategy based on the operating mode and the heat demand of the on-board equipment, the system can control the operation of different devices in the cooling system. This can fully utilize the heat generated by the power equipment, improve the reuse rate of heat in the cooling system, and thus solve the technical problem of low reuse rate of heat generated by the cooling system in related technologies, which leads to waste of heat resources. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0023] Figure 1 This is a structural block diagram of a control system for a vehicle cooling system according to this application;

[0024] Figure 2 This is a schematic diagram of a conventional cooling system according to this application;

[0025] Figure 3 This is a schematic diagram of another conventional cooling system according to this application;

[0026] Figure 4 This is a schematic diagram of a novel cooling system according to this application;

[0027] Figure 5 This is a structural block diagram of another novel cooling system shown in this application;

[0028] Figure 6 This is a flowchart illustrating a control method for a vehicle cooling system according to this application. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] According to an embodiment of the present invention, a control system embodiment for a vehicle cooling system is provided. Figure 1 This is a structural block diagram of a vehicle cooling system control system according to this application, such as... Figure 1 As shown, the system may include:

[0032] The power equipment cooling circuit 102 is connected to the controller 104 and the power equipment 106 on the vehicle, and is used to control the first coolant to cool the power equipment 106 based on the equipment cooling parameters sent by the controller 104.

[0033] The first coolant flows in the power equipment cooling circuit, and the power equipment is used to characterize the equipment that provides power to the vehicle.

[0034] It should be noted that, considering that vehicles typically have many devices that require heat, such as vehicle fuel cells and vehicle batteries, as well as other onboard equipment besides the power units, such as the passenger compartment and air filters, this application utilizes the vehicle's cooling system to specifically adjust the temperature of these heat-requiring devices to ensure their normal operation. Based on this, it can be understood that the aforementioned cooling system is actually used to adjust the temperature of different devices on the vehicle. To avoid errors in the cooling system, such as adjusting the temperature of incorrect devices according to incorrect cooling parameters, which could lead to safety risks during operation, this application proposes a control system for controlling the vehicle's cooling system.

[0035] In one optional embodiment, to prevent the temperature of devices that provide power to the vehicle, such as vehicle fuel cell stacks, vehicle batteries, and vehicle motors, from becoming too high and posing a safety risk during vehicle operation, the cooling system can be configured with at least a power equipment cooling circuit for cooling the power equipment. A first coolant can flow in the power equipment cooling circuit, and the temperature of the first coolant is generally lower than a first preset threshold. The first preset threshold can refer to the maximum temperature that the power equipment can reach during normal operation. Correspondingly, the power equipment cooling circuit can be connected to the power equipment to cool the power equipment through the first coolant, thereby preventing the power equipment from overheating and causing a safety risk. Given that the temperature of the first coolant may gradually rise due to heat exchange with the power equipment when cooling the power equipment, leading to a decrease in the cooling effect of the power equipment cooling circuit, or even failure to cool the power equipment, at least one cooling device, such as a fan or radiator, can be configured in the power equipment cooling circuit to cool the first coolant. Furthermore, to avoid malfunctions caused by unreasonable parameters used when cooling the first coolant, such as excessively high parameters resulting in excessively low first coolant temperature affecting the performance of the cooled power equipment, or excessively low cooling parameters... If the temperature of the first coolant cannot be reduced in a timely and effective manner, resulting in the power equipment temperature remaining too high, the aforementioned controller can be configured in the control system, and the power equipment cooling circuit can be connected to the controller. The controller can send reasonable equipment cooling parameters to the power equipment cooling circuit according to the control commands input from the user manual or the real-time temperature of the power equipment. The corresponding power equipment cooling circuit can control the operation of the cooling equipment according to the equipment cooling parameters sent by the controller, so as to cool the first coolant reasonably and effectively, and use the cooled first coolant to cool the power equipment, thereby avoiding situations where the power equipment temperature is too low, affecting equipment performance, or the power equipment temperature is too high, posing safety risks.

[0036] In one optional embodiment, the aforementioned power equipment cooling circuit can be connected not only to the power equipment but also to other vehicle-mounted equipment. When the temperature of the vehicle-mounted equipment is too high and needs to be cooled, or when a control command is received from the user, such as when the user sends a control command to the control system to lower the temperature in a high-temperature summer scenario, the control system can directly cool the vehicle-mounted equipment using the aforementioned power equipment cooling circuit based on the corresponding equipment cooling parameters in the control command, so as to avoid the vehicle-mounted equipment from overheating and affecting the user's driving experience.

[0037] The heating circuit 108 is connected to the controller and at least one on-board device 110 in the vehicle, and is used to control the second coolant to heat the on-board device 110 based on the heating parameters sent by the controller 104.

[0038] Among them, on-board equipment is used to characterize other equipment on a vehicle besides the power equipment.

[0039] In one optional embodiment, to prevent vehicle-mounted equipment with heat requirements, such as the passenger compartment, braking system, and air filter, from becoming too cold, which could negatively impact the user's driving experience, a heating circuit for heating the vehicle-mounted equipment can be configured in the cooling system. A second coolant can flow in the heating circuit, and the temperature of the second coolant is generally greater than a second preset threshold. This second preset threshold can refer to the lowest temperature that the vehicle-mounted equipment can reach during normal operation. Correspondingly, the heating circuit can be connected to the vehicle-mounted equipment to heat it through the second coolant, thus preventing the vehicle-mounted equipment from becoming too cold, which could reduce its performance or negatively impact the user's driving experience. Given that the temperature of the secondary coolant may gradually decrease due to heat exchange with the vehicle's equipment when using it to heat the in-vehicle devices, leading to a deterioration in the heating effect of the warm air heating circuit, at least one heating device for heating the secondary coolant, such as a heater or air heater, can be configured in the warm air heating circuit. Furthermore, to avoid malfunctions caused by inappropriate parameters used when heating the secondary coolant, such as excessively high parameters leading to excessively high temperatures in the heated secondary coolant and consequently excessively high temperatures in the heated in-vehicle devices, thus affecting user experience, or excessively low parameters leading to insufficient heating... If the temperature of the second coolant is too low, resulting in unstable heating of the vehicle equipment, the aforementioned heating circuit can be connected to the aforementioned controller. The controller can send reasonable heating parameters to the heating circuit based on the user's input control commands or the real-time temperature of the vehicle equipment. The corresponding heating circuit can then control the operation of the heating equipment according to the heating parameters sent by the controller, so as to reasonably and effectively heat the second coolant and use the heated second coolant to heat the vehicle equipment. This avoids situations where the temperature of the vehicle equipment is too high, affecting the user experience, or the temperature of the vehicle equipment is too low, resulting in unstable heating of the vehicle equipment.

[0040] In one optional embodiment, the above-mentioned warm air heating circuit can be connected not only to the vehicle-mounted equipment but also to the power equipment. When the temperature of the power equipment is too low and needs to be heated, or when the system receives a user-input command to start the power equipment, the control system can directly heat the power equipment using the above-mentioned warm air heating circuit according to the corresponding warm air heating parameters in the control command, so as to ensure that the power equipment cannot operate normally due to low temperature.

[0041] Coolant heat exchange device 112 is deployed between power equipment 106 and heating circuit 108 and connected to controller 104 for heat exchange between first coolant and second coolant based on heat exchange parameters sent by controller 104.

[0042] In one optional embodiment, considering that in real-world scenarios there may be situations where the circuit and equipment are disconnected—for example, the connection between the heating circuit and the power equipment may be broken, preventing the heating circuit from directly heating the power equipment, or the connection between the power equipment cooling circuit and the vehicle equipment may be broken, preventing the power equipment cooling circuit from directly cooling the vehicle equipment—at least one coolant heat exchange device can be configured between the power equipment cooling circuit and the heating circuit to ensure the heating requirements of the power equipment or the cooling requirements of the vehicle equipment. The device exchanges the temperatures of the first and second coolants. Correspondingly, when the power equipment requires heating, the control system can first heat the second coolant through the heating circuit, then use the heated second coolant to heat the first coolant in the coolant heat exchanger, and finally use the heated first coolant to heat the power equipment. Alternatively, when the on-board equipment requires cooling, the control system can first cool the first coolant through the power equipment cooling circuit, then use the cooled first coolant to cool the second coolant in the coolant heat exchanger, and finally use the cooled second coolant to cool the on-board equipment. To ensure efficient heat exchange between the first and second coolants and avoid continuous heat exchange that prevents the use of the first coolant for cooling the power equipment or the second coolant for heating the on-board equipment, the coolant heat exchanger can be connected to a controller. The controller can then send corresponding heat exchange parameters to the coolant heat exchanger, allowing the device to selectively exchange heat between the first and second coolants based on the received parameters.

[0043] In one alternative embodiment, if the aforementioned coolant heat exchange device is configured between the power equipment cooling circuit and the heating circuit, the power equipment cooling circuit can be connected only to the power equipment, and the heating circuit can be connected to the vehicle equipment, thereby reducing the overall vehicle construction cost.

[0044] The controller 104, connected to the power unit 106 and the vehicle-mounted equipment 110, is used to determine at least one operating mode of the cooling system based on the equipment temperature of the power unit 106 and the control commands input by the user on the vehicle, and to construct a system control strategy based on the operating mode and the operating parameters of the vehicle-mounted equipment 110.

[0045] The system control strategy includes at least the following parameters: equipment cooling parameters, warm air heating parameters, and heat exchange parameters.

[0046] The aforementioned operating modes can refer to different devices in the cooling system operating in different ways to heat or cool the power equipment and on-board equipment. These modes may include, but are not limited to: battery cooling mode, motor cooling mode, battery heating mode, motor heating mode, passenger compartment heating mode, fuel cell stack cold start heating mode, fuel cell stack waste heat utilization mode, and electric drive waste heat utilization mode. Different operating modes can coexist. The battery cooling mode, motor cooling mode, battery heating mode, motor heating mode, and passenger compartment heating mode can be determined by the temperatures of the vehicle battery, vehicle motor, and passenger compartment, or by detecting user-input commands to control the temperatures of the battery, motor, and passenger compartment. The fuel cell stack cold start heating mode... The thermal mode can be determined when a cold start of the vehicle fuel cell is detected and the temperature of the fuel cell is low. The fuel cell waste heat utilization mode can be determined when a high temperature of the vehicle fuel cell is detected and other equipment on the vehicle has a heat demand. The fuel cell waste heat utilization mode reuses the extra heat generated by the vehicle fuel cell, for example, by applying the extra heat to heating the passenger compartment, thereby reducing the cost of heating the passenger compartment using the warm air heating circuit and the cost of cooling the vehicle fuel cell using the power equipment cooling circuit. Therefore, in this application, when adjusting the temperature of different equipment, coolant is used to store the excess flow generated in the cooling system, thereby improving the full utilization of heat in the cooling system.

[0047] In one optional embodiment, to accurately send the corresponding equipment cooling parameters, heating parameters, and heat exchange parameters to the power equipment cooling circuit, the heating circuit, and the coolant heat exchange device, the controller can be connected to the power equipment and the vehicle-mounted equipment to obtain the equipment temperature of the power equipment and the operating parameters of the vehicle-mounted equipment in real time. Simultaneously, the controller can also detect user-input control commands to determine the current operating mode of the cooling system based on the equipment temperature and control commands. Furthermore, it can determine the heat demand of different equipment based on the operating parameters of different vehicle-mounted devices. Finally, based on the determined operating mode and heat demand, a system control strategy for controlling the cooling system can be constructed to send the corresponding equipment cooling parameters, heating parameters, and heat exchange parameters to the power equipment cooling circuit, the heating circuit, and the coolant heat exchange device.

[0048] In this embodiment of the invention, a control system for a vehicle cooling system is adopted, comprising a power equipment cooling circuit, a heating circuit, a coolant heat exchange device, and a controller. By determining at least one operating mode of the cooling system in real time based on the equipment temperature of the power equipment and the control commands input by the user, and formulating a system control strategy based on the operating mode and the heat demand of the on-board equipment, the system can control the operation of different devices in the cooling system. This can fully utilize the heat generated by the power equipment, improve the reuse rate of heat in the cooling system, and thus solve the technical problem of low reuse rate of heat generated by the cooling system in related technologies, which leads to waste of heat resources.

[0049] In this embodiment, the heating parameters include at least: coolant heating parameters, heater pump operating parameters, and heat distribution parameters. The heating circuit includes: a water heater for heating the second coolant based on the coolant heating parameters; a heater connected to the water heater for controlling the flow of the second coolant in the heating circuit based on the heater operating parameters; and a heat distribution device connected to the water heater, the coolant heat exchanger, and the vehicle-mounted equipment for controlling the flow rate of the second coolant from the water heater into the coolant heat exchanger and the vehicle-mounted equipment based on the heat distribution parameters.

[0050] In one optional embodiment, to facilitate heating of the vehicle equipment using the second coolant or heat exchange with the first coolant, at least a water heater, a heater pump, and a heat distribution device can be configured in the heating circuit. Correspondingly, the heating parameters can include at least: coolant heating parameters, heater pump operating parameters, and heat distribution parameters. The coolant heating parameters, used to heat the first coolant, can include parameters such as the target temperature for heating the coolant, heating duration, heating power, and heating frequency. The heater pump operating parameters, used to control the flow rate of the first coolant, can include, but are not limited to, parameters such as pump flow rate, frequency, and cycle duration. The heat distribution device can be used to distribute heat... The flow rate of the first coolant is adjusted to accommodate different flow directions for different devices. Correspondingly, a water heater can be used to heat the second coolant according to the coolant heating parameters. A heater pump can be connected to the water heater to control the flow of the second coolant in the heating circuit according to the heater pump's operating parameters. A heat distribution device can be connected to the water heater, the coolant heat exchanger, and the vehicle-mounted equipment. Considering that different vehicle-mounted equipment has different heat requirements, the heat distribution device can be used to control the flow rate of the second coolant flowing from the water heater into the coolant heat exchanger and the vehicle-mounted equipment based on the heat distribution parameters, so as to achieve targeted distribution of the appropriate second coolant to different vehicle-mounted equipment and the first coolant.

[0051] In this embodiment, the equipment cooling parameters include at least: coolant cooling parameters, first water pump operating parameters, second water pump operating parameters, and coolant distribution parameters. The power equipment cooling circuit includes: a coolant cooling device for cooling the first coolant based on the coolant cooling parameters; a first water pump connected to the coolant cooling device, the power equipment, and the coolant heat exchange device for drawing the first coolant to the power equipment or the coolant heat exchange device based on the first water pump operating parameters; a second water pump connected to the coolant heat exchange device and the power equipment for drawing the first coolant to the power equipment based on the second water pump operating parameters; and a coolant distribution device connected to the first water pump, the coolant cooling device, and the power equipment for controlling the flow rate of the first coolant flowing from the power equipment into the coolant cooling device and the first water pump based on the coolant distribution parameters.

[0052] In one optional embodiment, to facilitate changing the temperature of the power equipment, a coolant cooling device, a first water pump, a second water pump, and a coolant distribution device can be configured in the power equipment cooling circuit. Correspondingly, the equipment cooling parameters can include at least: coolant cooling parameters, first water pump operating parameters, second water pump operating parameters, and coolant distribution parameters. The coolant cooling device can include, but is not limited to, a fan, a radiator, etc., and can be used to cool the first coolant according to the coolant cooling parameters. The power equipment cooling circuit can include two sub-circuits. The first sub-circuit is directly connected to the coolant cooling device and is used to transfer the cooled first coolant. The second sub-circuit is connected to the coolant heat exchange device and is used to transfer the cooled first coolant after heat exchange. Based on this, a first water pump can be installed in the first sub-circuit and connected to the coolant heat exchange device, the power equipment, and the coolant heat exchange device to draw the first coolant to the power equipment or the coolant heat exchange device according to the first water pump's operating parameters. Simultaneously, a second water pump can be installed in the second sub-circuit and connected to the coolant heat exchange device and the power equipment to draw the first coolant to the power equipment according to the second water pump's operating parameters. Considering that different power equipment or first coolants have different heat requirements, a coolant distribution device can also be configured in the power equipment and connected to the first water pump, the coolant cooling device, and the power equipment to control the flow rate of the first coolant flowing from the power equipment into the coolant cooling device and the first water pump according to the aforementioned coolant distribution parameters.

[0053] In this embodiment, the power equipment cooling circuit includes at least a fuel cell stack cooling circuit and an electric drive cooling circuit. The coolant heat exchange device includes a three-layer flow water-to-water heat exchanger. The fuel cell stack cooling circuit is used to cool the vehicle fuel cell stack, and the electric drive cooling circuit is used to cool the electric drive equipment on the vehicle. The first layer of the three-layer flow water-to-water heat exchanger is connected to the fuel cell stack cooling circuit, the second layer of the three-layer flow water-to-water heat exchanger is connected to the heating circuit, and the third layer of the three-layer flow water-to-water heat exchanger is connected to the electric drive cooling circuit.

[0054] In one optional embodiment, considering that the power equipment generates a certain amount of heat during operation, this heat can usually be absorbed by the cooled first coolant. If there are other devices in the vehicle that require heat, the excess heat generated by the power equipment can be applied to these other devices to reduce the operating costs of the power equipment cooling circuit and the heating circuit. Considering that the heat generated by the vehicle electric drive is generally larger among multiple power devices, and that the vehicle electric drive, vehicle fuel cell stack, and vehicle battery can operate independently, the aforementioned working mode can also include an electric drive waste heat utilization mode to use the extra heat generated by the vehicle electric drive to heat other devices that require heat, such as heating the vehicle fuel cell stack during cold start. Based on this, the coolant heat exchange device configured in the cooling system can be a three-layer flow water-to-water heat exchanger. Correspondingly, the first layer of the three-layer flow water-to-water heat exchanger can be connected to the fuel cell stack cooling circuit, the second layer to the heating circuit, and the third layer to the electric drive cooling circuit.

[0055] In this embodiment, the equipment cooling parameters include: electric water pump operating parameters, electric coolant distribution parameters, and electric heat dissipation parameters. The electric cooling circuit includes: an electric drive device connected to a controller, used to send the electric drive temperature of the electric drive device to the controller; an electric water pump connected to the controller, used to draw a third coolant to a three-layer flow water-to-water heat exchanger based on the electric water pump operating parameters sent by the controller, wherein the third coolant flows in the electric cooling circuit; an electric coolant distribution device connected to the controller, used to distribute the third coolant flowing out of the three-layer flow water-to-water heat exchanger to the electric heat dissipation device and the electric drive device based on the electric coolant distribution parameters sent by the controller; an electric heat dissipation device connected to the controller, used to perform heat dissipation treatment on the third coolant based on the electric heat dissipation parameters sent by the controller; and a controller used to construct the electric water pump operating parameters based on the electric drive temperature.

[0056] In one optional embodiment, to facilitate temperature control of the electric drive equipment in the vehicle, the electric drive cooling circuit may include at least: an electric drive unit, an electric drive water pump, and an electric drive coolant distribution device. Correspondingly, the equipment cooling parameters may include at least: electric drive water pump operating parameters, electric drive coolant distribution parameters, and electric drive heat dissipation parameters. The electric drive unit can send its temperature to a controller, which determines whether the temperature is too high. The controller can then construct electric drive water pump operating parameters based on this temperature. The electric drive water pump can be connected to the controller to draw a third coolant to a three-layer flow water-to-water heat exchanger according to the electric drive water pump operating parameters sent by the controller. The third coolant flows in the electric drive cooling circuit. The electric drive coolant distribution device can also be connected to the controller to... According to the electric drive coolant distribution parameters sent by the controller, the third coolant flowing from the three-layer flow water-to-water heat exchanger is distributed to the electric drive heat dissipation device and the electric drive equipment. For example, if the temperature of the third coolant after passing through the coolant heat exchange device is low and can continue to be used to cool the electric drive equipment, the electric drive coolant distribution device can be used to directly transfer the third coolant back to the electric drive equipment for cooling. If the temperature of the third coolant after passing through the cooling heat exchange device is high, the electric drive coolant distribution device can be used to transfer the third coolant to the electric drive heat dissipation device. The electric drive heat dissipation device can be connected to the controller to dissipate heat from the third coolant according to the electric drive heat dissipation parameters sent by the controller, and then transfer the dissipated third coolant back to the electric drive equipment to cool the electric drive equipment.

[0057] For ease of understanding, Figure 2 This is a schematic diagram of a conventional cooling system according to this application. In this diagram, 201 represents a cooling device, such as a fan or radiator, used to cool the coolant; 202 represents a water temperature sensor used to detect the coolant temperature; 203 represents a fuel cell stack water pump used to control the flow of coolant in the cooling system; 204 represents a deionizer tank used to reduce the content of conductive ions in the coolant; 205 represents a vehicle fuel cell stack used to provide power to the vehicle; 206 represents a controller used to control the operation of the cooling device, fuel cell stack water pump, deionizer tank, etc.; 207 represents a flow restrictor valve; and 208 represents an expansion tank. Figure 2 The cooling system shown can cool the coolant to a preset temperature to cool the fuel cell stack. However, this system cannot reuse the heat generated by the vehicle's fuel cell stack, resulting in insufficient heat utilization and wasted cooling resources. Furthermore, in low-temperature environments or with an inadequate fuel cell stack water management system, problems such as slow cold start and low reaction efficiency of the vehicle's fuel cell stack may occur. Regarding... Figure 2 The problems that exist in Figure 2Based on the cooling system shown, improvements can be made to obtain... Figure 3 Another conventional cooling system is shown. Figure 3 This is a schematic diagram of another conventional cooling system according to this application, wherein 301 represents a water heater for heating the coolant, and 302 represents a coolant distribution device for determining the flow direction and target of the coolant. Figure 3 The cooling system shown can effectively improve the efficiency of the vehicle's fuel cell stack during cold starts. However, if there are many circuits used to cool the power equipment, directly adding a heating circuit to the cooling circuit in this way, i.e., adding a water heater, will significantly increase the overall vehicle construction cost. Therefore, in order to reduce the overall vehicle construction cost while maintaining the temperature of the power equipment or on-board equipment, this application proposes that the heating circuit can be set up independently in the cooling system, and the second coolant flowing in the heating circuit can be exchanged with the first coolant flowing in the power equipment cooling circuit through a coolant heat exchange device. Figure 4This is a schematic diagram of a novel cooling system according to this application. In the diagram, 401 represents a coolant heat exchange device, 402 represents a heater pump, 403 represents a heat distribution device, 404 represents on-board equipment with heat demand, and 405 represents an auxiliary water pump used to extract coolant from the coolant heat exchange device. In the cooling system proposed in this application, the heater circuit and the power equipment cooling system can be connected via the coolant heat exchange device. When the power equipment has heat demand, the control system can first heat the second coolant in the heater circuit using a water heater. The heated second coolant can flow into the on-board equipment to heat it, or it can flow into the coolant heat exchange device. The coolant heat exchange device exchanges heat with the first coolant flowing in the power equipment cooling circuit to increase the temperature of the first coolant, thereby utilizing the heat exchanged first coolant... The coolant heats the power equipment, such as the vehicle fuel cell stack during cold starts, thereby improving the cold start efficiency of the vehicle fuel cell stack. Furthermore, when the temperature of the power equipment, such as the vehicle fuel cell stack, is high, the control system can also transfer the first coolant flowing from the power equipment to a coolant heat exchange device. This allows the first coolant, which stores excess heat from the power equipment, to exchange heat with the second coolant in the heating circuit, thereby increasing the temperature of the second coolant. This reduces the resources consumed by the water heater when heating the second coolant and improves the utilization rate of excess heat generated by the power equipment. Additionally, in this application, connecting different power equipment cooling circuits and heating circuits via a coolant heat exchange device, rather than adding an additional circuit for heating the coolant in the power equipment cooling circuit, can significantly reduce the construction cost of the cooling system and minimize the waste of vehicle construction resources. Furthermore, considering that a vehicle may simultaneously contain a primary power unit that generates excess heat over a prolonged period, such as an electric drive unit, and a secondary power unit with heat requirements, such as a vehicle fuel cell stack undergoing a cold start, or onboard equipment requiring heating, such as the passenger compartment, the coolant heat exchange device can be configured as a multi-layer flow-through water-to-water heat exchanger. This multi-layer flow-through water-to-water heat exchanger can be connected to multiple power unit cooling circuits and heating circuits to achieve simultaneous exchange of coolant in multiple circuits. Based on this, taking the cooling circuit of the electric drive unit as an example... Figure 5This is a structural block diagram of another novel cooling system shown in this application, wherein 501 represents an electric drive device, 502 represents an electric drive radiator, 503 represents an electric drive water pump, and 504 represents an electric drive coolant distribution device. When the temperature of the electric drive device is high, the third coolant in the cooling circuit where the electric drive water pump is located can be transferred to the coolant heat exchange device, i.e., a multi-layer flow water-to-water heat exchanger, through the electric drive water pump to exchange heat with the coolant in other circuits. After heat exchange, the third coolant can enter the electric drive radiator through the electric drive coolant distribution device for heat dissipation and then be transferred back to the electric drive device to continue cooling the electric drive device. Alternatively, if the temperature of the third coolant after heat exchange is low, it can be directly transferred to the electric drive device to cool the electric drive device.

[0058] According to an embodiment of the present invention, a control method for a vehicle cooling system is also provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0059] Figure 6 This is a flowchart illustrating a control method for a vehicle cooling system according to this application, such as... Figure 1 As shown, the method includes the following steps:

[0060] Step S602: Obtain the equipment temperature of at least one power device on the vehicle, and the operating parameters and control commands of at least one on-board device.

[0061] In one optional embodiment, in order to reasonably control the operation of the cooling system on the vehicle, reduce the operating cost of the cooling system, and make full use of the heat generated by the cooling system, the control system can first obtain the equipment temperature of at least one power device on the vehicle, as well as the operating parameters of at least one on-board device with heat demand. At the same time, it can detect the control command input by the user on the vehicle to determine whether the control command is used to adjust the temperature of different devices on the vehicle.

[0062] Step S604: Based on the equipment temperature and control commands, determine at least one operating mode currently in which the cooling system is operating.

[0063] In one optional embodiment, considering that different devices in the cooling system may operate differently under different working modes, and different working modes can coexist, in order to accurately control the operation of the cooling system, the control system can first determine at least one working mode of the cooling system based on the acquired device temperature and control commands.

[0064] Step S606: Based on the working mode and operating parameters, construct the system control strategy for the cooling system.

[0065] In one alternative embodiment, after determining the current operating mode of the cooling system, the control system can specify different equipment control strategies for different operating modes based on the current heat demand of different devices, i.e., the aforementioned operating parameters. Then, by summarizing the constructed equipment control strategies, the aforementioned system control strategy can be obtained.

[0066] Step S608: Control the operation of the cooling system based on the system control strategy.

[0067] After the system control strategy is established, the control system can control the operation of the cooling system according to the system control strategy.

[0068] In this embodiment, a system control strategy for the cooling system is constructed based on the operating mode and operating parameters, including: obtaining a heat demand table matching the operating mode, and obtaining the heat demand quantity matching the device identifier and operating parameters of the on-board equipment from the heat demand table, wherein the heat demand table is used to store the mapping relationship between the device identifier, operating parameters and heat demand quantity; constructing system operating parameters for the cooling system under the operating mode based on the heat demand quantity; summarizing the system operating parameters based on the correlation between the operating modes to obtain the target operating parameters; and constructing a system control strategy based on the target operating parameters.

[0069] In one optional embodiment, to ensure the accuracy of the constructed system control strategy, the control system can first obtain a heat demand table matching the currently determined operating mode, and then obtain the heat demand quantity matching the device identifier and operating parameters of the vehicle-mounted equipment from the heat demand table to determine the current heat demand of different vehicle-mounted equipment. Then, based on the heat demand quantity, the system operating parameters of the cooling system under the corresponding operating mode are constructed. Finally, the constructed system operating parameters are summarized according to the correlation between different operating modes to obtain the target operating parameters used to control the operation of the cooling system. Based on the target operating parameters, the control system can formulate a system control strategy for controlling the operation of the cooling system.

[0070] In this embodiment, the power equipment includes at least: a vehicle battery, a vehicle motor, a vehicle fuel cell stack, and an electric drive system. The operating modes include at least: a battery cooling mode, a motor cooling mode, a battery heating mode, a passenger compartment heating mode, a fuel cell stack cold start heating mode, a fuel cell stack waste heat utilization mode, and an electric drive waste heat utilization mode. Based on the equipment temperature and control commands, at least one operating mode of the cooling system is currently in is determined, including: determining the operating mode as a battery cooling mode in response to the vehicle battery temperature being greater than a first battery temperature; and determining the operating mode as a battery heating mode in response to the battery temperature being less than a second battery temperature, wherein the second battery temperature is less than the first battery temperature. The system is configured to: 1. Determine the operating mode as motor cooling mode if the vehicle motor temperature is higher than the first motor temperature; 2. Determine the operating mode as motor heating mode if the motor temperature is lower than the second motor temperature, where the second motor temperature is lower than the first motor temperature; 3. Determine the operating mode as fuel cell cold start heating mode if the control command is to start the vehicle fuel cell stack; 4. Determine the operating mode as fuel cell waste heat utilization mode if the vehicle fuel cell stack temperature is within a safe range and the vehicle fuel cell stack temperature is higher than a preset fuel cell stack temperature, where the preset fuel cell stack temperature is within a safe range; 5. Determine the operating mode as electric drive waste heat utilization mode if the electric drive equipment temperature is higher than a preset electric drive temperature.

[0071] In one optional embodiment, the power equipment on the vehicle may include, but is not limited to, a vehicle battery, a vehicle motor, a vehicle fuel cell stack, and an electric drive system. The operating modes of the cooling system may include, but are not limited to, a battery cooling mode, a motor cooling mode, a battery heating mode, a motor heating mode, a passenger compartment heating mode, a fuel cell stack cold start heating mode, a fuel cell stack waste heat utilization mode, and an electric drive waste heat utilization mode.

[0072] When determining the operating mode of the cooling system based on the equipment temperature of the power equipment and the control commands input by the user, if the detected battery temperature of the vehicle battery is higher than the first battery temperature, the operating mode can be determined as battery cooling mode; if the detected battery temperature is lower than the second battery temperature, the operating mode can be determined as battery heating mode. Here, the second battery temperature is lower than the first battery temperature, where the first battery temperature can refer to the maximum temperature the vehicle battery can reach during normal operation, and the second battery temperature can refer to the minimum temperature the vehicle battery can reach during normal operation. Similarly, if the detected motor temperature of the vehicle motor is higher than the first motor temperature, the operating mode can be determined as motor cooling mode; if the detected motor temperature is lower than the second motor temperature... If the second motor temperature is lower than the first motor temperature, the first motor temperature can refer to the maximum temperature that the vehicle motor can reach during normal operation, and the second motor temperature can refer to the minimum temperature that the vehicle motor can reach during normal operation. If the control command is detected to start the vehicle fuel cell stack, the operating mode can be determined as fuel cell stack cold start heating mode. If the vehicle fuel cell stack temperature is detected to be within a safe range and the vehicle fuel cell stack temperature is higher than the preset fuel cell stack temperature, the operating mode can be determined as fuel cell stack waste heat utilization mode, where the preset fuel cell stack temperature is within a safe range. If the temperature of the electric drive equipment is detected to be higher than the preset electric drive temperature, the operating mode can be determined as electric drive waste heat utilization mode.

[0073] In this embodiment, the cooling system includes at least: a water heater, a warm air pump, a heat distribution device, a fuel cell stack water-to-water heat exchanger, a second water pump, and a coolant distribution device. The system control strategy includes at least the following parameters: water heater heating parameters, warm air pump control parameters, heat distribution parameters, heat exchange parameters, second water pump operating parameters, and coolant distribution parameters. In response to the fuel cell stack cold start heating mode, the cooling system is controlled based on the system control strategy, including: controlling the water heater to heat the second coolant according to the water heater heating parameters, and controlling the warm air pump to heat the second coolant according to the warm air pump operating parameters. The system controls the heater pump to draw heated second coolant to the heat distribution device according to the parameters; controls the heat distribution device to distribute heated second coolant to the fuel cell stack water-to-water heat exchanger according to the heat distribution parameters; controls the fuel cell stack water-to-water heat exchanger to exchange heat between heated second coolant and first coolant according to the heat exchange parameters; controls the second water pump to draw heated first coolant to the vehicle fuel cell stack according to the second water pump operating parameters to heat the vehicle fuel cell stack; and controls the coolant distribution device to distribute the first coolant flowing out of the vehicle fuel cell stack to the fuel cell stack water-to-water heat exchanger according to the coolant distribution parameters.

[0074] In one optional embodiment, the cooling system may include at least: a water heater, a warm air pump, a heat distribution device, a fuel cell water-to-water heat exchanger, a second water pump, and a coolant distribution device. Correspondingly, the system control strategy may include at least: water heater parameters, warm air pump control parameters, heat distribution parameters, heat exchange parameters, second water pump operating parameters, and coolant distribution parameters. When the current operating mode of the cooling system is determined to be the fuel cell stack cold start heating mode, it indicates that the vehicle fuel cell stack needs to be preheated to ensure normal start-up. Based on this, the control system can first heat the second coolant according to the aforementioned water heating parameters. Considering that there may be other equipment on the vehicle that needs to be heated, after heating the second coolant, the control system can further control the heater pump to draw the heated second coolant into the heat distribution device according to the heater pump control parameters. Then, according to the heat distribution parameters, the heat distribution device distributes the heated second coolant into the fuel cell stack water-to-water heat exchanger. Through the fuel cell stack water-to-water heat exchanger, the heated second coolant and the first coolant exchange heat according to the aforementioned heat exchange parameters to increase the temperature of the first coolant. Finally, the control system can control the second water pump to draw the first coolant after heat exchange to the vehicle fuel cell stack according to the second water pump's operating parameters to heat the vehicle fuel cell stack. Considering that the heating of the vehicle fuel cell stack is continuous, when using the first coolant to heat the vehicle fuel cell stack, the coolant distribution device can be used to directly distribute the first coolant flowing out of the vehicle fuel cell stack to the fuel cell stack water-to-water heat exchanger according to the coolant distribution parameters, without having to distribute the first coolant to the cooling equipment for cooling, thereby reducing the cost of heating the first coolant and improving the efficiency of heating the vehicle fuel cell stack.

[0075] In this embodiment, in response to the working mode being the fuel cell waste heat utilization mode, the cooling system is controlled to operate based on a system control strategy, including: controlling the coolant distribution device to distribute the first coolant flowing out of the fuel cell to the fuel cell water-to-water heat exchanger according to coolant distribution parameters; controlling the fuel cell water-to-water heat exchanger to exchange heat between the first coolant and the second coolant according to heat exchange parameters; controlling the water heater to heat the second coolant after heat exchange according to water heating parameters, so that the second temperature of the second coolant reaches a preset temperature; controlling the heater pump to draw the heated second coolant to the heat distribution device according to heater pump control parameters, and controlling the heat distribution device to distribute the heated second coolant to the on-board equipment according to heat distribution parameters.

[0076] In one optional embodiment, if the vehicle's fuel cell stack temperature is high and other equipment on the vehicle has heat requirements, the heat generated by the vehicle's fuel cell stack can be distributed to these other devices to reduce the cost incurred by the heating circuit in generating heat. Based on this, when the cooling system's operating mode is detected as fuel cell waste heat utilization mode, the control system can control the coolant distribution device to distribute the first coolant flowing from the fuel cell stack to the fuel cell stack water-to-water heat exchanger according to coolant distribution parameters. At this time, the first coolant absorbs heat generated by the vehicle's fuel cell stack. In the fuel cell stack water-to-water heat exchanger, the control system can perform heat exchange between the first and second coolants according to heat exchange parameters to increase the temperature of the second coolant. Considering that the heat generated by the vehicle's fuel cell stack is limited, simply increasing the temperature of the second coolant through heat exchange may not be sufficient to meet the heat requirements of other devices. Therefore, while performing heat exchange on the second coolant, the control system can also control the water heater to heat the second coolant after heat exchange according to water heating parameters, so that the second coolant reaches a preset temperature, ensuring that the second coolant can meet the heat requirements of other devices. After the temperature of the second coolant reaches the preset temperature, the control system can further control the heater pump to draw the heated second coolant into the heat distribution device according to the heater pump control parameters, and control the heat distribution device to distribute the heated second coolant to the vehicle equipment according to the heat distribution parameters.

[0077] In this embodiment, the cooling system further includes an electric water pump and an electric coolant distribution device. The system control strategy includes parameters such as electric water pump operating parameters and electric coolant distribution parameters. In response to the operating mode being electric drive waste heat utilization mode, the cooling system is controlled to operate based on the system control strategy, including: drawing a third coolant flowing from the electric drive equipment to a coolant heat exchange device according to the electric water pump operating parameters; controlling the coolant heat exchange device to exchange heat between the third coolant, the first coolant, and the second coolant according to the heat exchange parameters; and controlling the electric coolant distribution device to distribute the third coolant flowing from the coolant heat exchange device to the electric drive equipment according to the electric coolant distribution parameters.

[0078] In one optional embodiment, considering that the electric drive equipment on the vehicle also generates a lot of heat during operation, the additional heat generated by the electric drive equipment can also be used to heat other on-board equipment or power equipment. Based on this, the cooling system can also include an electric drive water pump and an electric drive coolant distribution device. The parameters included in the system control strategy can also include electric drive water pump operating parameters and electric drive coolant distribution parameters. When the temperature of the electric drive equipment is detected to be high and other equipment has heat demand, that is, when the cooling system is in the electric drive waste heat utilization mode, the control system can first draw the third coolant flowing out of the electric drive equipment into the coolant heat exchange device according to the electric drive water pump operating parameters, and control the coolant heat exchange device to perform heat exchange between the third coolant, the first coolant and the second coolant according to the heat exchange parameters, so as to increase the temperature of the first coolant and the second coolant, while decreasing the temperature of the third coolant. After the heat exchange, the control system can then control the operation of the electric drive coolant distribution device according to the electric drive coolant distribution parameters to distribute the third coolant flowing out of the coolant heat exchange device to the electric drive equipment to reabsorb the heat generated by the electric drive equipment.

[0079] According to an embodiment of the present invention, a vehicle phase change energy storage material is also provided, comprising: a phase change energy storage device storing an executable program; and a controller for running the program, wherein the program executes the methods of various embodiments of the present invention during runtime.

[0080] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0081] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0082] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0083] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0084] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0085] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A control system for a vehicle cooling system, characterized in that, include: A power equipment cooling circuit, connected to a controller and a power equipment on a vehicle, is used to control a first coolant to cool the power equipment based on equipment cooling parameters sent by the controller, wherein the first coolant flows in the power equipment cooling circuit, and the power equipment is used to characterize the equipment that provides power to the vehicle; A heating circuit is connected to the controller and at least one on-board device on the vehicle, and is used to control the second coolant to heat the on-board device based on the heating parameters sent by the controller, wherein the on-board device is used to characterize other equipment on the vehicle besides the power equipment; A coolant heat exchange device is deployed between the power equipment and the warm air heating circuit and connected to the controller for heat exchange between the first coolant and the second coolant based on the heat exchange parameters sent by the controller. The controller, connected to the power equipment and the vehicle-mounted equipment, is used to determine at least one operating mode of the cooling system based on the equipment temperature of the power equipment and the control commands input by the user on the vehicle, and to construct a system control strategy based on the operating mode and the operating parameters of the vehicle-mounted equipment. The system control strategy includes at least the following parameters: the equipment cooling parameters, the heating parameters, and the heat exchange parameters. The controller is further configured to acquire a heat demand table matching the operating mode, and from the heat demand table, acquire the heat demand amount matching the device identifier and operating parameters of the on-board equipment, wherein the heat demand table is used to store the mapping relationship between the device identifier, the operating parameters and the heat demand amount; based on the heat demand amount, construct the system operating parameters of the cooling system under the operating mode; based on the correlation between the operating modes, summarize the system operating parameters to obtain target operating parameters; and construct the system control strategy based on the target operating parameters.

2. The control system for the vehicle cooling system according to claim 1, characterized in that, The warm air heating parameters include at least: coolant heating parameters, warm air pump operating parameters, and heat distribution parameters; the warm air heating circuit includes: A water heater is used to heat the second coolant based on the cooling parameters. A warm air water pump, connected to the water heater, is used to control the flow of the second coolant in the warm air heating circuit based on the operating parameters of the warm air water pump. A heat distribution device, connected to the water heater, the coolant heat exchanger, and the vehicle-mounted equipment, is used to control the flow rate of the second coolant flowing from the water heater into the coolant heat exchanger and the vehicle-mounted equipment based on the heat distribution parameters.

3. The control system for the vehicle cooling system according to claim 1, characterized in that, The equipment cooling parameters include at least: coolant cooling parameters, first water pump operating parameters, second water pump operating parameters, and coolant distribution parameters. The power equipment cooling circuit includes: A coolant cooling device for cooling the first coolant based on the coolant cooling parameters; A first water pump is connected to the coolant cooling device, the power equipment, and the coolant heat exchange device, and is used to draw the first coolant to the power equipment or the coolant heat exchange device based on the operating parameters of the first water pump. The second water pump is connected to the coolant heat exchange device and the power equipment, and is used to draw the first coolant to the power equipment based on the operating parameters of the second water pump. A coolant distribution device, connected to the first water pump, the coolant cooling device, and the power equipment, is used to control the flow rate of the first coolant flowing from the power equipment into the coolant cooling device and the first water pump based on the coolant distribution parameters.

4. The control system for the vehicle cooling system according to claim 1, characterized in that, The power equipment cooling circuit includes at least a fuel cell stack cooling circuit and an electric drive cooling circuit. The coolant heat exchange device includes a three-layer flow water-to-water heat exchanger. The fuel cell stack cooling circuit is used to cool the vehicle fuel cell stack, and the electric drive cooling circuit is used to cool the electric drive equipment on the vehicle. The first layer of the three-layer flow water-to-water heat exchanger is connected to the fuel cell stack cooling circuit, the second layer of the three-layer flow water-to-water heat exchanger is connected to the heating circuit, and the third layer of the three-layer flow water-to-water heat exchanger is connected to the electric drive cooling circuit.

5. The control system for the vehicle cooling system according to claim 4, characterized in that, The equipment cooling parameters include: electric drive water pump operating parameters, electric drive coolant distribution parameters, and electric drive heat dissipation parameters. The electric drive cooling circuit includes: The electric drive device is connected to the controller and is used to send the electric drive temperature of the electric drive device to the controller; An electric water pump, connected to the controller, is used to draw a third coolant to the three-layer flow water-to-water heat exchanger based on the operating parameters of the electric water pump sent by the controller, wherein the third coolant flows in the electric cooling circuit. An electric drive coolant distribution device, connected to the controller, is used to distribute the third coolant flowing out of the three-layer flow water-to-water heat exchanger to the electric drive heat dissipation device and the electric drive equipment based on the electric drive coolant distribution parameters sent by the controller. The electric drive cooling device is connected to the controller and is used to cool the third coolant based on the electric drive cooling parameters sent by the controller. The controller is used to construct the operating parameters of the electric water pump based on the electric drive temperature.

6. A control method for a vehicle cooling system, characterized in that, include: Acquire the equipment temperature of at least one power device on the vehicle, and the operating parameters and control commands of at least one on-board device; Based on the device temperature and the control command, determine at least one operating mode of the cooling system. Based on the operating mode and the operating parameters, a system control strategy for the cooling system is constructed. The cooling system is controlled based on the system control strategy. The system control strategy for the cooling system, based on the operating mode and the operating parameters, includes: obtaining the heat demand matching the device identifier and the operating parameters of the on-board equipment, wherein the heat demand table stores the mapping relationship between the device identifier, the operating parameters, and the heat demand; constructing system operating parameters for the cooling system under the operating mode based on the heat demand; summarizing the system operating parameters based on the correlation between the operating modes to obtain target operating parameters; and constructing the system control strategy based on the target operating parameters.

7. The method according to claim 6, characterized in that, The power equipment includes at least: a vehicle battery, a vehicle motor, a vehicle fuel cell stack, and an electric drive system. The operating modes include at least: a battery cooling mode, a motor cooling mode, a battery heating mode, a motor heating mode, a passenger compartment heating mode, a fuel cell stack cold start heating mode, a fuel cell stack waste heat utilization mode, and an electric drive waste heat utilization mode. Based on the equipment temperature and the control commands, at least one operating mode of the cooling system is currently in is determined, including: In response to the fact that the battery temperature of the vehicle battery is greater than the first battery temperature, the operating mode is determined to be the battery cooling mode; In response to the fact that the battery temperature is lower than the second battery temperature, the operating mode is determined to be the battery heating mode, wherein the second battery temperature is lower than the first battery temperature; In response to the fact that the motor temperature of the vehicle motor is greater than the first motor temperature, the operating mode is determined to be the motor cooling mode; In response to the fact that the temperature of the first motor is lower than the temperature of the second motor, the operating mode is determined to be the motor heating mode, wherein the temperature of the second motor is lower than the temperature of the first motor; In response to the control command to start the vehicle fuel cell stack, the operating mode is determined to be the fuel cell stack cold start heating mode; In response to the fact that the temperature of the vehicle fuel cell stack is within a safe range and the vehicle fuel cell stack is greater than a preset fuel cell stack temperature, the operating mode is determined to be the fuel cell stack waste heat utilization mode, wherein the preset fuel cell stack temperature is within the safe range; In response to the fact that the device temperature of the electric drive equipment is greater than the preset electric drive temperature, the operating mode is determined to be the electric drive waste heat utilization mode.

8. The method according to claim 7, characterized in that, The cooling system includes at least: a water heater, a warm air pump, a heat distribution device, a fuel cell stack water-to-water heat exchanger, a second water pump, and a coolant distribution device. The system control strategy includes at least: water heater parameters, warm air pump control parameters, heat distribution parameters, heat exchange parameters, second water pump operating parameters, and coolant distribution parameters. In response to the operating mode being the fuel cell stack cold start heating mode, the cooling system is controlled to operate based on the system control strategy, including: The water heater is controlled to heat the second coolant according to the water heating parameters, and the warm air pump is controlled to draw the heated second coolant to the heat distribution device according to the warm air pump control parameters. The heat distribution device is controlled to distribute the heated second coolant to the fuel cell stack water-to-water heat exchanger according to the heat distribution parameters, and the fuel cell stack water-to-water heat exchanger is controlled to exchange heat between the heated second coolant and the first coolant according to the heat exchange parameters. The second water pump is controlled according to the operating parameters of the second water pump to draw the first coolant after heat exchange to the vehicle fuel cell stack in order to heat the vehicle fuel cell stack. The coolant distribution device is controlled according to the coolant distribution parameters to distribute the first coolant flowing from the vehicle fuel cell stack to the fuel cell stack water-to-water heat exchanger.

9. The method according to claim 7, characterized in that, In response to the operating mode being the fuel cell waste heat utilization mode, the cooling system is controlled to operate based on the system control strategy, including: The coolant distribution device is controlled according to the coolant distribution parameters to distribute the first coolant flowing out of the fuel cell stack to the fuel cell stack water-to-water heat exchanger. The heat exchange parameters are controlled to allow the fuel cell stack water-to-water heat exchanger to exchange heat between the first coolant and the second coolant. The water heater is controlled according to the water heating parameters to heat the second coolant after heat exchange, so that the second temperature of the second coolant reaches the preset temperature; The heater pump is controlled according to the heater pump control parameters to draw the heated second coolant to the heat distribution device, and the heat distribution device is controlled according to the heat distribution parameters to distribute the heated second coolant to the vehicle equipment.

10. The method according to claim 7, characterized in that, The cooling system further includes an electric water pump and an electric coolant distribution device. The system control strategy includes parameters such as electric water pump operating parameters and electric coolant distribution parameters. In response to the operating mode being the electric waste heat utilization mode, the cooling system is controlled to operate based on the system control strategy, including: According to the operating parameters of the electric water pump, the third coolant flowing out of the electric drive equipment is drawn to the coolant heat exchange device. The heat exchange device is controlled to exchange heat between the third coolant, the first coolant, and the second coolant according to the heat exchange parameters. The electric drive coolant distribution device is controlled according to the electric drive coolant distribution parameters to distribute the third coolant flowing out of the coolant heat exchange device to the electric drive equipment.

11. A phase change energy storage material for vehicles, characterized in that, include: Phase change energy storage devices store executable programs; A controller for running the program, wherein the program, when running, performs the method according to any one of claims 6 to 10.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the storage medium is located to perform the method according to any one of claims 6 to 10.

13. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method according to any one of claims 6 to 10.

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