Cooling system of vehicle, battery heating method of vehicle, vehicle and storage medium

Abstract

The application discloses a cooling system of a vehicle, a battery heating method of the vehicle, the vehicle and a storage medium. The method comprises the following steps: a first cooling circuit comprises a motor cooling system and a first radiator, an output end of the motor cooling system is connected with an input end of the first radiator, and an output end of the first radiator is connected with an input end of the motor cooling system; a second cooling circuit comprises an engine, a second radiator and a heating system, a first output end of the engine is connected with an input end of the second radiator, and a first input end of the engine is connected with an output end of the second radiator; a battery cooling system is connected with the heating system, an input end of the battery cooling system is connected with an output end of the heating system, and an output end of the battery cooling system is connected with an input end of the heating system. The application solves the technical problem of low efficiency of the vehicle cooling system in the related art.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more specifically, to a vehicle cooling system, a vehicle battery heating method, a vehicle, and a storage medium. Background Technology

[0002] While new energy vehicles are developing rapidly, they also face problems such as short driving range in low temperatures, insufficient utilization of engine waste heat, and complex cooling systems. The cooling systems of existing new energy hybrid vehicles mainly include: engine, motor, battery cooling and heating circuit, and heat dissipation components such as radiators, intercoolers, and condensers are used for heat dissipation.

[0003] However, the above heat utilization methods still have drawbacks: First, the engine thermostat opens when the heating demand in the passenger compartment is low and the water temperature is high, resulting in the loss of excess heat; second, in low-temperature environments, the residual heat from the motor is insufficient to maintain the battery temperature, affecting the driving range. In addition, as the number of cooling module layers increases, wind resistance increases and air intake decreases, leading to lower efficiency of the vehicle's cooling system in related technologies.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] The present invention provides a vehicle cooling system, a vehicle battery heating method, a vehicle, and a storage medium to at least solve the technical problem of low efficiency of vehicle cooling systems in related technologies.

[0006] According to one aspect of the present invention, a vehicle cooling system is provided, comprising: a first cooling circuit including a motor cooling system and a first radiator, wherein the output end of the motor cooling system is connected to the input end of the first radiator, and the output end of the first radiator is connected to the input end of the motor cooling system, and the first radiator is used to dissipate heat from the motor cooling system; a second cooling circuit including an engine, a second radiator, and a heating system, wherein a first output end of the engine is connected to the input end of the second radiator, and a first input end of the engine is connected to the output end of the second radiator; the output end of the heating system is connected to a second input end of the engine, and a first input end of the heating system is connected to a second output end of the engine, the second radiator is used to dissipate heat from the engine, and the engine is used to provide heat to the heating system; and a battery cooling system connected to the heating system, wherein the input end of the battery cooling system is connected to the output end of the heating system, and the output end of the battery cooling system is connected to the input end of the heating system, and the heating system is used to provide heat to the battery in the battery cooling system.

[0007] Furthermore, the first cooling circuit also includes an intercooling system, the output of which is connected to the input of the first radiator, the input of which is connected to the output of the first radiator, and the first radiator is also used to dissipate heat from the intercooling system, which is used to reduce the intake air temperature of the vehicle.

[0008] Furthermore, the vehicle's cooling system also includes: an intermediate heat exchanger, the first input end of which is connected to the output end of the heating system, the first output end of which is connected to the input end of the battery cooling system, the second input end of which is connected to the output end of the battery cooling system, and the second output end of which is connected to the second input end of the heating system.

[0009] Furthermore, the second cooling circuit also includes: a multi-way valve, the first end of which is connected to the output of the heating system, the second end of which is connected to the second input of the engine, the third end of which is connected to the second output of the engine, the fourth end of which is connected to the input of the heating system, and the fifth end of which is connected to the first input of the intermediate heat exchanger; and a controller connected to the multi-way valve, which connects the input of the heating system to the second output of the engine by opening the third and fourth ends of the multi-way valve; connects the output of the heating system to the first input of the intermediate heat exchanger by opening the first and fifth ends of the multi-way valve; and connects the second output of the engine to the first input of the intermediate heat exchanger by opening the third and fifth ends of the multi-way valve.

[0010] Furthermore, the heating system also includes: a heating device for supplying heat to the heating system; and a controller connected to the heating device for controlling the heating device to provide heat to the battery through an intermediate heat exchanger according to the target temperature of the battery in the vehicle, so that the battery reaches the target temperature.

[0011] According to another aspect of the present invention, a method for heating a vehicle battery is also provided, comprising: in response to receiving a battery heating command from the vehicle, acquiring a target temperature to be reached by the battery and the current temperature of the battery; controlling a heating system in a cooling system to heat the battery according to the current temperature and the target temperature, so that the battery reaches the target temperature, wherein the cooling system is the vehicle cooling system proposed in the present invention.

[0012] Furthermore, controlling the heating system in the cooling system to heat the battery based on the current temperature and the target temperature to bring the battery to the target temperature includes: in response to the engine in the vehicle not being in operation, determining the heating temperature of the heating device in the heating system based on the current temperature and the target temperature; and controlling the heating device to heat the battery based on the heating temperature to bring the battery to the target temperature.

[0013] Further, determining the heating temperature of the heating device in the heating system based on the current temperature and the target temperature includes: in response to the engine being in operation in the vehicle, acquiring the engine's heating temperature and determining the temperature difference between the current temperature and the target temperature; determining the heating temperature of the heating device based on the temperature difference and the heating temperature difference; controlling the heating device to heat the battery based on the heating temperature, and controlling the engine to heat the battery based on the heating temperature, so that the battery reaches the target temperature.

[0014] According to another aspect of the present invention, a vehicle is also provided, comprising: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods of various embodiments of the present invention during runtime.

[0015] 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 the methods of various embodiments of the present invention are implemented when the executable program controls the device where the storage medium is located to execute.

[0016] In this embodiment of the invention, the vehicle's cooling system includes a first cooling circuit, a second cooling circuit, and a battery cooling system. The first cooling circuit includes a motor cooling system and a first radiator. The output end of the motor cooling system is connected to the input end of the first radiator, and the output end of the first radiator is connected to the input end of the motor cooling system. The first radiator is used to dissipate heat from the motor cooling system. The second cooling circuit includes an engine, a second radiator, and a heating system. The first output end of the engine is connected to the input end of the second radiator, and the first input end of the engine is connected to the output end of the second radiator. The output end of the heating system is connected to the second input end of the engine, and the first input end of the heating system is connected to the second output end of the engine. The second radiator is used to dissipate heat from the engine, and the engine is used to provide heat to the heating system. The battery cooling system is connected to the heating system. The input end of the battery cooling system is connected to the output end of the heating system, and the output end of the battery cooling system is connected to the input end of the heating system. The heating system is used to provide heat to the battery in the battery cooling system. It is noteworthy that this application separates the motor cooling system from the battery cooling system by setting up two cooling circuits, enabling the system to independently control the motor cooling system and the battery cooling system, facilitating heat exchange between different circuits to achieve multiple heat utilization modes. At the same time, it reduces the number of radiators, saves the manufacturing cost of the cooling system, thereby improving the performance of the cooling system and solving the technical problem of low efficiency of vehicle cooling systems in related technologies. Attached Figure Description

[0017] 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:

[0018] Figure 1 This is a schematic diagram of a vehicle cooling system according to an embodiment of the present invention;

[0019] Figure 2 This is a structural diagram of an optional vehicle cooling system according to an embodiment of the present invention;

[0020] Figure 3 This is a flowchart of a vehicle battery heating method according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a vehicle battery heating device according to an embodiment of the present invention. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] According to an embodiment of the present invention, a vehicle cooling system is provided. Figure 1 This is a schematic diagram of a vehicle cooling system according to an embodiment of the present invention, as shown below. Figure 1 As shown, the vehicle's cooling system includes:

[0025] The first cooling circuit 107 includes a motor cooling system 102 and a first radiator 101. The output end of the motor cooling system is connected to the input end of the first radiator, and the output end of the first radiator is connected to the input end of the motor cooling system. The first radiator is used to dissipate heat from the motor cooling system.

[0026] The second cooling circuit 108 includes an engine 104, a second radiator 103, and a heating system 105. The first output end of the engine is connected to the input end of the second radiator, the first input end of the engine is connected to the output end of the second radiator, the output end of the heating system is connected to the second input end of the engine, and the first input end of the heating system is connected to the second output end of the engine. The second radiator is used to dissipate heat from the engine, and the engine is used to provide heat to the heating system.

[0027] The battery cooling system 106 is connected to the heating system 105. The input end of the battery cooling system is connected to the output end of the heating system, and the output end of the battery cooling system is connected to the input end of the heating system. The heating system is used to heat the battery in the battery cooling system.

[0028] The aforementioned first cooling circuit may refer to a cooling system that includes a motor cooling system and a first radiator, and its function includes, but is not limited to, dissipating the heat generated by the generator, maintaining the motor within a suitable operating temperature range, and ensuring the stable operation of the motor.

[0029] The aforementioned motor cooling system refers to a system used to reduce the operating temperature of a vehicle's motor. It transfers heat from the motor's interior to the external environment to prevent performance degradation or damage caused by overheating. The functions of a motor cooling system include, but are not limited to, protecting motor components, maintaining motor performance, and energy saving. Motor cooling systems include, but are not limited to, air cooling systems, liquid cooling systems, and phase cooling systems. The specific cooling method chosen depends on the type of motor, the operating environment, and the required cooling effect, and is not limited here.

[0030] The aforementioned first and second radiators can refer to heat exchange devices used to dissipate heat from designated equipment. They transfer the heat generated by the designated equipment to the coolant and then dissipate the heat into the surrounding air, thereby reducing the operating temperature of the designated equipment and ensuring that the equipment is within its optimal operating temperature range. Radiators include, but are not limited to, water-cooled radiators and air radiators. The specific type of radiator can be selected according to specific needs and application scenarios to achieve the best heat dissipation and equipment protection effect, and is not limited here.

[0031] In one optional embodiment, when the vehicle is in motion, the motor assembly starts to work and continuously generates heat. The motor cooling system in the first cooling circuit can absorb the heat generated by the motor assembly through coolant and return the coolant that has absorbed the heat to the motor cooling system. At this time, the coolant in the motor cooling system is cooled by the first radiator. Finally, the coolant after being cooled by the first radiator flows back into the motor assembly to form a cycle, ensuring that the motor always works at a suitable temperature.

[0032] The aforementioned second cooling circuit may refer to a cooling system that includes the engine, the second radiator, and the heating system. Its functions include, but are not limited to, dissipating the heat generated by the engine, maintaining the engine within a suitable operating temperature range, ensuring stable engine operation, and inputting the heat generated by the engine into the heating system to provide warmth for the driver.

[0033] The aforementioned engine can refer to a device that converts some form of energy into the energy required by a vehicle, providing power to the vehicle and serving as the core of the entire vehicle's powertrain system. Engine types include, but are not limited to, hybrid generators, gasoline engines, diesel engines, and pure electric generators. The specific engine type can be determined based on factors such as fuel type, fuel method, and operating cycle, and is not limited here.

[0034] The aforementioned heating system refers to a device that provides heating to a vehicle, capable of outputting warm air to maintain a comfortable interior temperature in cold weather. The functions of a heating system include, but are not limited to, providing warmth, assisting with defrosting, and improving energy efficiency. Types of heating systems include, but are not limited to, liquid heaters, gas heat exchangers, and positive temperature coefficient heaters. The specific type of heating system can be determined based on factors such as vehicle type and system environment, and is not limited here.

[0035] In one optional embodiment, the engine in the second cooling circuit continuously operates and generates heat. The second radiator cools the engine using coolant. The process begins with the second radiator outputting coolant to the engine's first input, cooling the engine. Then, the engine's first output outputs coolant back to the second radiator's input, allowing it to flow back into the radiator. The coolant dissipates heat into the air through internal cooling pipes, and the cooled coolant flows back into the engine, continuously circulating. Simultaneously, as the coolant flows through the heating system, it transfers some heat to the air inside the vehicle, providing warmth. This process not only ensures the engine operates at a suitable temperature but also makes efficient use of the heat generated by the engine, avoiding resource waste and improving heat utilization efficiency.

[0036] The aforementioned battery cooling system refers to a device used to maintain the battery temperature within a safe and effective operating range. Batteries generate heat during charging and discharging; excessively high or low temperatures can affect battery performance and lifespan. Therefore, the battery cooling system ensures the battery operates at its optimal condition through heat dissipation or heating. The functions of the battery cooling system include, but are not limited to, protecting the battery, improving battery performance, and extending the vehicle's driving range. Types of battery cooling systems include, but are not limited to, air cooling systems, liquid cooling systems, phase change material cooling, and heat pipe cooling systems. The specific type of battery cooling system can be determined based on factors such as vehicle type, vehicle structure, and system environment; no specific limitations are imposed here.

[0037] In one optional embodiment, the vehicle's cooling system includes a first cooling circuit, a second cooling circuit, and a battery cooling system. The first cooling circuit includes a motor cooling system and a first radiator. The output of the motor cooling system is connected to the input of the first radiator, and the output of the first radiator is connected to the input of the motor cooling system. The first radiator is used to dissipate heat from the motor cooling system. The second cooling circuit includes an engine, a second radiator, and a heating system. The first output of the engine is connected to the input of the second radiator, and the first input of the engine is connected to the output of the second radiator. The output of the heating system is connected to the second input of the engine, and the first input of the heating system is connected to the second output of the engine. The second radiator is used to dissipate heat from the engine, and the engine is used to provide heat to the heating system. The battery cooling system is connected to the heating system. The input of the battery cooling system is connected to the output of the heating system, and the output of the battery cooling system is connected to the input of the heating system. The heating system is used to provide heat to the battery in the battery cooling system. It is noteworthy that this application separates the motor cooling system from the battery cooling system by setting up two cooling circuits, enabling the system to independently control the motor cooling system and the battery cooling system, facilitating heat exchange between different circuits to achieve multiple heat utilization modes. At the same time, it reduces the number of radiators, saves the manufacturing cost of the cooling system, thereby improving the performance of the cooling system and solving the technical problem of low efficiency of vehicle cooling systems in related technologies.

[0038] Optionally, the first cooling circuit further includes an intercooling system, the output of which is connected to the input of the first radiator, the input of which is connected to the output of the first radiator, and the first radiator is also used to dissipate heat from the intercooling system, which is used to reduce the intake air temperature of the vehicle.

[0039] The aforementioned intercooling system refers to a device used in thermal systems that cools high-temperature gases or steam using a lower-temperature medium (such as water, air, or other liquids), thereby reducing the temperature and improving the efficiency and safety of the entire system. Types of intercooling systems include, but are not limited to, direct-contact, indirect-contact, and hybrid intercooling systems. The functions of intercooling systems include, but are not limited to, improving system efficiency, controlling temperature, protecting equipment, and reducing corrosion and scaling. The specific intercooling system selected can be determined based on different operating conditions and requirements, and is not limited here.

[0040] In one optional embodiment, the vehicle's first cooling circuit includes a first radiator, a motor cooling system, and an intercooler system. The motor cooling system and the intercooler system are combined and share the first radiator for heat dissipation. The motor cooling system and the intercooler system are cooled by coolant, which is then fed into the first radiator. The first radiator displaces the heat in the coolant with air, dispersing the heat into the air. The treated coolant is then returned to the motor cooling system and the intercooler system, continuously circulating. This process reduces the number of front-end cooling module layers while achieving heat exchange, and optimizes the motor's smoothness at low temperatures by controlling the series-parallel connection mode of the intercooler and motor circuits through a thermal management control module.

[0041] Optionally, the vehicle's cooling system further includes: an intermediate heat exchanger, the first input of which is connected to the output of the heating system, the first output of which is connected to the input of the battery cooling system, the second input of which is connected to the output of the battery cooling system, and the second output of which is connected to the second input of the heating system.

[0042] The aforementioned intermediate heat exchanger refers to a type of heat exchanger used to transfer heat from one medium to another during the flow of gas or liquid. In vehicle cooling systems, intermediate heat exchangers are typically used to reduce the high-temperature air generated by turbochargers, thereby improving engine combustion efficiency. Types of intermediate heat exchangers may include, but are not limited to, air-to-air heat exchangers, air-to-water heat exchangers, and air-to-oil heat exchangers. The specific intermediate heat exchanger selected depends on the type of medium requiring cooling and the vehicle type; no limitations are specified here.

[0043] Optionally, the second cooling circuit further includes: a multi-way valve, the first end of which is connected to the output of the heating system, the second end of which is connected to the second input of the engine, the third end of which is connected to the second output of the engine, the fourth end of which is connected to the input of the heating system, and the fifth end of which is connected to the first input of the intermediate heat exchanger; and a controller connected to the multi-way valve, which connects the input of the heating system to the second output of the engine by opening the third and fourth ends of the multi-way valve; connects the output of the heating system to the first input of the intermediate heat exchanger by opening the first and fifth ends of the multi-way valve; and connects the second output of the engine to the first input of the intermediate heat exchanger by opening the third and fifth ends of the multi-way valve.

[0044] The aforementioned multi-way valve refers to a valve with multiple channels that can control the flow direction of fluid as needed. It typically consists of a valve body, valve core, seals, and a drive mechanism. In the second cooling circuit, the multi-way valve's functions include, but are not limited to, controlling the flow direction and flow rate of the coolant, controlling the connection between internal components in the cooling circuit, and protecting equipment. Types of multi-way valves include, but are not limited to, manual multi-way valves, electric multi-way valves, pneumatic multi-way valves, and electromagnetic multi-way valves. The specific selection depends on the application scenario and actual needs, and is not limited here.

[0045] The conduction methods of the above-mentioned multi-way valve may include, but are not limited to, the following:

[0046] In the first scenario, the heating system is turned on, and the engine has surplus heat. In this case, the third terminal of the multi-way valve is connected to the second output terminal of the engine to receive the surplus heat provided by the engine to the heating system, thus avoiding heat waste.

[0047] In the second scenario, the battery cooling system needs to be heated. First, connect the second output terminal of the engine to the third terminal of the multi-way valve, and the fifth terminal of the multi-way valve to the first input terminal of the intermediate heat exchanger. Transfer the heat from the engine to the battery cooling system through the multi-way valve and the intermediate heat exchanger to raise the battery temperature. If the temperature reaches the target temperature of the battery, there is no need to connect other heating paths.

[0048] In the third scenario, the battery cooling system requires heating. First, connect the second output terminal of the engine to the third terminal of the multi-way valve, and the fifth terminal of the multi-way valve to the first input terminal of the intermediate heat exchanger. This transfers the engine's heat to the battery cooling system through the multi-way valve and the intermediate heat exchanger, raising the battery's temperature. If the temperature does not reach the battery's target temperature, connect the heater system's output terminal to the first terminal of the multi-way valve. This allows the heater system's heat to also be transferred to the battery cooling system through the multi-way valve and the intermediate heat exchanger. The engine and the heater system work together to provide heat to the battery cooling system, enabling the battery to reach the target temperature.

[0049] In one optional embodiment, the second cooling circuit includes a second radiator, an engine, a multi-way valve, and a heater, with an intermediate heat exchange device added between the heater system and the battery cooling system. During vehicle operation, the engine continuously runs and generates heat. Part of this heat is dissipated through the second radiator to maintain the engine's normal operating temperature. The remaining heat is divided into two paths by the multi-way valve: one path is input into the heater system to provide warmth to the cabin, creating a comfortable environment for passengers and the driver; the other path, according to the needs of the battery cooling system, is transferred via the multi-way valve to the intermediate heat exchanger, and then from the intermediate heat exchanger to the battery cooling system, ensuring the battery is at a suitable operating temperature and improving its range. This process not only realizes a heat utilization mode from the engine to the heater system but also a heat utilization mode from the engine to the heater system to the battery. Furthermore, through thermal management strategy control, energy distribution can be automatically adjusted according to user needs. In cases of insufficient engine waste heat or pure electric operation, the heating device can simultaneously provide heat to the battery and heater, ensuring comfort and performance at low temperatures.

[0050] Optionally, the heating system also includes: a heating device for supplying heat to the heating system; and a controller connected to the heating device for controlling the heating device to provide heat to the battery through an intermediate heat exchanger according to the target temperature of the battery in the vehicle, so that the battery reaches the target temperature.

[0051] The aforementioned heating device can refer to an independent air heating device located within a heating system. It transfers heat to the air, raising the temperature of the heating system, which then distributes the heat to the cabin, battery, or other equipment requiring heating. This provides a comfortable driving environment for the driver and passengers and maintains the normal operating temperature of other equipment. The functions of the heating device include, but are not limited to, reducing vehicle humidity, ensuring a suitable temperature for the interior structure, and improving passenger comfort. The types of heating devices can include, but are not limited to, water-based heaters, electric heaters, air-based heaters, and hybrid heaters. The specific selection can be made based on the type of medium and actual needs, and is not limited here.

[0052] The aforementioned controller can refer to a device used to control the operating status of a heating device. It can precisely control the operating status of the heating device according to preset parameters, such as the target temperature of the battery in the vehicle, so that the heating device can provide heat to the battery and reach the target temperature of the battery.

[0053] The controller described above can control the heating device in the following two ways, including but not limited to:

[0054] In the first scenario, if the temperature supplied by the engine to the heating system does not reach the preset temperature after the heating system is turned on, the heating device needs to be activated through the controller to heat the system and increase its temperature. If the temperature supplied by the engine to the heating system reaches the preset temperature, the heating device does not need to be activated through the controller, thus saving energy.

[0055] In the second scenario, whether the heating system is turned on or not, the battery cooling system has not reached the target temperature. In this case, the heating device needs to be turned on separately to raise the temperature of the heating system, and then the heating system will transfer the heat to the battery cooling system to heat it up to the target temperature.

[0056] In one alternative embodiment, Figure 2 This is an optional vehicle cooling system structure diagram according to an embodiment of the present invention, wherein 107 represents a first cooling circuit, 201 is an intercooler system, 101 is a first radiator, and 102 is a motor cooling system; 108 represents a second cooling circuit, 103 is a second radiator, 104 is an engine, 202 is a multi-way valve, and 105 is a heating system; 106 represents a battery cooling system, and 203 represents an intermediate heat exchange device.

[0057] The first cooling circuit includes a first radiator, a motor cooling system, and an intercooler system. The first cooling system 107 combines the motor cooling system 102 and the intercooler system 201, sharing the first radiator 101 for heat dissipation. The motor cooling system and the intercooler system are cooled by coolant, which is then fed into the first radiator. The first radiator displaces the heat from the coolant with air, dispersing the heat into the air. The treated coolant is then returned to the motor cooling system and the intercooler system, continuously circulating. This achieves heat exchange while reducing the number of radiators and lowering air resistance by having the motor cooling system and the intercooler share a single first radiator, thus reducing cooling costs. The second cooling circuit 108 includes a second radiator 103, an engine 104, a multi-way valve 202, and a heater 105. An intermediate heat exchange device 103 is added between the heater system 105 and the battery cooling system 106.

[0058] During vehicle operation, the engine continuously runs and generates heat. Part of this heat is dissipated through the second radiator to maintain the engine's normal operating temperature. The remaining heat is divided into two paths via a multi-way valve. One path is sent to the heating system to provide warmth to the cabin, creating a comfortable environment for passengers and the driver. The other path, depending on the battery cooling system's needs, is transmitted via the multi-way valve to the intermediate heat exchanger, and then from there to the battery cooling system, ensuring the battery is at a suitable operating temperature and improving its range. The vehicle's heating system 105 includes a heating element and a controller. The heating system not only exchanges heat with the engine to maintain its optimal operating temperature, but also, when the vehicle is stationary and the heat is insufficient, it can be remotely activated via an application (APP) to provide heat to the heating system. This heat is then transferred to the battery system through the intermediate heat exchanger, preheating the battery and ensuring it reaches its optimal operating temperature when the vehicle is in use, thereby extending the driving range.

[0059] According to another aspect of the present invention, a method for heating a vehicle battery 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.

[0060] Figure 3 This is a flowchart of a vehicle battery heating method according to an embodiment of the present invention, such as... Figure 3 As shown, the method includes the following steps:

[0061] Step S302: In response to receiving the battery heating command from the vehicle, obtain the target temperature that the battery needs to reach and the current temperature of the battery;

[0062] The target temperature mentioned above can refer to the optimal temperature when the battery is operating normally. The battery's operating temperature can be obtained by acquiring the battery's operating temperature under normal driving conditions or by calculating the battery's various parameters, and then set as the target temperature as the standard for judging the current battery temperature.

[0063] The aforementioned current temperature may refer to the instantaneous temperature of the battery at the moment when the battery heating command is received.

[0064] The aforementioned battery heating command is used to heat the battery. The generation of the battery heating command can include, but is not limited to, the user selecting a heating temperature for the battery through an interactive interface; the battery temperature sensor automatically generating a heating command when the battery has not reached the standard temperature; and the environmental monitoring device detecting that the external ambient temperature is too low, predicting a low battery temperature, and simultaneously generating a heating command through the controller.

[0065] The aforementioned vehicle types may include, but are not limited to, internal combustion engine vehicles, electric vehicles, plug-in hybrid electric vehicles, solar-powered vehicles, and fuel cell vehicles. The vehicle states may include, but are not limited to, parking, idling, emergency braking, driving, energy-saving, autonomous driving, and cruise control.

[0066] The aforementioned batteries can be the power batteries for vehicles, and their functions include, but are not limited to, providing power to the vehicle, recovering energy, and providing power to other auxiliary systems such as vehicle navigation, lighting, and air conditioning. The types of batteries may include, but are not limited to, lead-acid batteries, nickel-cadmium batteries, lithium-ion batteries, lithium polymer batteries, and nickel-metal hydride batteries.

[0067] In one optional embodiment, the driver activates the battery heating command via a remote app. At this time, it is necessary to obtain the battery's target temperature and current temperature. The remote app may include multiple driving modes, such as off-road mode and commuter mode. Different driving modes correspond to different target battery temperatures, which can be selected via the corresponding heating command. Therefore, upon receiving the battery heating command, the target battery temperature after the driving mode selection is obtained, and the battery's current real-time temperature is also acquired. This process, through remote operation via the app, completes the selection of the vehicle's driving mode, obtains the vehicle's target battery temperature based on the corresponding heating command selected for the driving mode, and acquires the battery's current temperature, providing a basis for subsequent heating by the heating system.

[0068] Step S304: Control the heating system in the cooling system to heat the battery according to the current temperature and the target temperature, so that the battery reaches the target temperature. The cooling system is the vehicle cooling system proposed in the above embodiment.

[0069] In one optional embodiment, after obtaining the current temperature of the vehicle battery, it is determined whether the current temperature has reached the target temperature of the battery. If the target temperature of the battery has not been reached, it means that the battery needs to be heated again. Then, the heating system in the vehicle cooling system can be controlled to transfer heat to the battery to heat the battery and bring the battery to the target temperature, thereby bringing the battery to a suitable working state.

[0070] Optionally, controlling the heating system in the cooling system to heat the battery based on the current temperature and the target temperature to bring the battery to the target temperature includes: in response to the engine in the vehicle not being in operation, determining the heating temperature of the heating device in the heating system based on the current temperature and the target temperature; and controlling the heating device to heat the battery based on the heating temperature to bring the battery to the target temperature.

[0071] The heating temperature mentioned above can refer to the difference between the current temperature of the battery and the target temperature when the engine is not in operation.

[0072] In one optional embodiment, when the engine is not running and the battery temperature is below the target temperature, a heating command is generated to heat the battery. First, upon receiving the heating command, the target temperature and the current battery temperature are obtained. Then, based on the current and target temperatures, the heating temperature of the heating device in the heating system is determined, and the heating device is controlled to supply heat to the heating system based on the heating temperature. Then, the output end of the heating system is connected to the first end of the multi-way valve, and the fifth end of the multi-way valve is connected to the first input end of the intermediate heat exchanger. Thus, the heat generated by the heating device is input to the intermediate heat exchanger through the output end of the heating system, the first end of the multi-way valve, and the fifth end of the multi-way valve. Finally, the intermediate heat exchanger transfers the heat to the battery cooling system, completing the continuous heating of the battery and bringing it to the target temperature. This ensures that the battery is at a suitable operating temperature when the vehicle is in use, which not only effectively protects the battery and extends its service life, but also improves the battery's driving range. It also enables rapid vehicle warm-up in low-temperature environments, reduces heat loss, and thus improves battery efficiency.

[0073] Optionally, determining the heating temperature of the heating device in the heating system based on the current temperature and the target temperature includes: in response to the engine being in operation in the vehicle, acquiring the engine's heating temperature and determining the temperature difference between the current temperature and the target temperature; determining the heating temperature of the heating device based on the temperature difference and the heating temperature difference; controlling the heating device to heat the battery based on the heating temperature, and controlling the engine to heat the battery based on the heating temperature, so that the battery reaches the target temperature.

[0074] The heating temperature mentioned above may refer to the engine temperature when the engine is running.

[0075] The heating temperature mentioned above can refer to the temperature difference between the current battery temperature and the target temperature when the engine is running, and the engine's heating temperature.

[0076] In one optional embodiment, when the engine is running, the current temperature and target temperature of the battery are obtained, and the temperature difference between the two is calculated. Then, the engine's heating temperature is obtained, and the heating temperature is determined based on the temperature difference and the heating temperature. The heating device is then controlled to heat the battery according to the required heating temperature. At this time, the output end of the heater system needs to be connected to the first end of the multi-way valve, and the fifth end of the multi-way valve needs to be connected to the first input end of the intermediate heat exchanger. This allows the heat generated by the heating device to be transferred to the battery through the multi-way valve and the intermediate heat exchanger. This process, through an independent heating device, ensures the supply of heat to the system and can quickly raise the battery temperature. At the same time, the engine is controlled to heat the battery based on the heating temperature. At this time, the second output end of the engine needs to be connected to the third end of the multi-way valve, and the fifth end of the multi-way valve needs to be connected to the first input end of the intermediate heat exchanger. This allows the heat generated by the engine to be transferred to the battery through the multi-way valve and the intermediate heat exchanger. This process realizes the comprehensive utilization of engine heat and improves heat utilization efficiency. The above process, based on the vehicle's condition under different states, incorporates multiple conditions such as ambient temperature (engine temperature, battery temperature, etc.) and heating system environment to comprehensively confirm the heat distribution logic, further refine the heating heat demand level and battery heat demand level, and achieve reasonable heat distribution under different states.

[0077] According to another aspect of the present invention, a vehicle battery heating device is also provided. This device can perform the vehicle battery heating method of the above embodiments. The specific implementation method and preferred application scenarios are the same as those of the above embodiments, and will not be described in detail here.

[0078] Figure 4 This is a schematic diagram of a vehicle battery heating device according to an embodiment of the present invention, as shown below. Figure 4 As shown, the device includes the following: an acquisition module 402 and a heating module 404.

[0079] The acquisition module 402, in response to receiving a battery heating command from the vehicle, acquires the target temperature that the battery needs to reach and the current temperature of the battery;

[0080] The heating module 404 controls the heating system in the cooling system to heat the battery according to the current temperature and the target temperature, so that the battery reaches the target temperature. The cooling system is the vehicle cooling system proposed in this invention.

[0081] Optionally, the heating module includes: a first heating unit, configured to, in response to the engine being not in operation in the vehicle, determine the heating temperature of the heating device in the heating system based on the current temperature and the target temperature; and control the heating device to heat the battery based on the heating temperature so that the battery reaches the target temperature.

[0082] Optionally, the heating module includes: a second heating unit, configured to respond to the engine being in operation in the vehicle, acquire the engine's heating temperature, and determine the temperature difference between the current temperature and the target temperature; determine the heating temperature of the heating device based on the temperature difference and the heating temperature difference; control the heating device to heat the battery based on the heating temperature, and control the engine to heat the battery based on the heating temperature, so that the battery reaches the target temperature.

[0083] According to another aspect of the present invention, a vehicle is also provided, comprising: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods of various embodiments of the present invention during runtime.

[0084] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored program, wherein, when the program is executed, it controls the execution of the methods of various embodiments of the present invention in a processor of the device.

[0085] The computer storage medium mentioned in the above steps can be a medium used in computer memory to store certain discontinuous physical quantities. Computer storage media mainly include semiconductors, magnetic cores, magnetic drums, magnetic tapes, and laser discs. Computer-readable storage media includes stored programs, which can be a set of instructions that a computer can recognize and execute, running on an electronic computer to meet certain human needs—an information tool.

[0086] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0087] 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.

[0088] 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 instance, 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 coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0089] 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.

[0090] 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.

[0091] 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 described in 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.

[0092] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made 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 vehicle cooling system, characterized in that, include: The first cooling circuit includes a motor cooling system and a first radiator. The output end of the motor cooling system is connected to the input end of the first radiator, and the output end of the first radiator is connected to the input end of the motor cooling system. The first radiator is used to dissipate heat from the motor cooling system. The second cooling circuit includes an engine, a second radiator, and a heating system. The first output terminal of the engine is connected to the input terminal of the second radiator, and the first input terminal of the engine is connected to the output terminal of the second radiator. The output terminal of the heating system is connected to the second input terminal of the engine, and the first input terminal of the heating system is connected to the second output terminal of the engine. The second radiator is used to dissipate heat from the engine, and the engine is used to provide heat to the heating system. A battery cooling system is connected to the heating system. The input end of the battery cooling system is connected to the output end of the heating system, and the output end of the battery cooling system is connected to the input end of the heating system. The heating system is used to heat the battery in the battery cooling system. An intermediate heat exchanger, wherein the first input end of the intermediate heat exchanger is connected to the output end of the heating system, the first output end of the intermediate heat exchanger is connected to the input end of the battery cooling system, the second input end of the intermediate heat exchanger is connected to the output end of the battery cooling system, and the second output end of the intermediate heat exchanger is connected to the second input end of the heating system; The second cooling circuit also includes: A multi-way valve, wherein the first end of the multi-way valve is connected to the output end of the heating system, the second end of the multi-way valve is connected to the second input end of the engine, the third end of the multi-way valve is connected to the second output end of the engine, the fourth end of the multi-way valve is connected to the input end of the heating system, and the fifth end of the multi-way valve is connected to the first input end of the intermediate heat exchanger. The controller is connected to the multi-way valve. By connecting the third and fourth terminals of the multi-way valve, the input terminal of the heating system is connected to the second output terminal of the engine; by connecting the first and fifth terminals of the multi-way valve, the output terminal of the heating system is connected to the first input terminal of the intermediate heat exchanger; and by connecting the third and fifth terminals of the multi-way valve, the second output terminal of the engine is connected to the first input terminal of the intermediate heat exchanger.

2. The cooling system according to claim 1, characterized in that, The first cooling circuit also includes: An intercooling system is provided, wherein the output terminal of the intercooling system is connected to the input terminal of the first radiator, and the input terminal of the intercooling system is connected to the output terminal of the first radiator. The first radiator is also used to dissipate heat from the intercooling system, and the intercooling system is used to reduce the intake air temperature of the vehicle.

3. The cooling system according to claim 1, characterized in that, The heating system also includes: A heating device is used to supply heat to the heating system; A controller, connected to the heating device, is used to control the heating device to provide heat to the battery through the intermediate heat exchanger according to the target temperature of the battery in the vehicle, so that the battery reaches the target temperature.

4. A method for heating a vehicle battery, characterized in that, include: In response to receiving a battery heating command from the vehicle, the target temperature to be reached by the battery and the current temperature of the battery are obtained; The heating system in the cooling system is controlled to heat the battery according to the current temperature and the target temperature, so that the battery reaches the target temperature, wherein the cooling system is the cooling system of the vehicle according to any one of claims 1 to 3; Controlling the heating system in the cooling system to heat the battery based on the current temperature and the target temperature to bring the battery to the target temperature includes: in response to the engine in the vehicle not being in operation, determining the heating temperature of the heating device in the heating system based on the current temperature and the target temperature; and controlling the heating device to heat the battery based on the heating temperature to bring the battery to the target temperature.

5. The battery heating method for a vehicle according to claim 4, characterized in that, Determining the heating temperature of the heating device in the warm air system based on the current temperature and the target temperature includes: In response to the engine in the vehicle being in operation, the heating temperature of the engine is acquired, and the temperature difference between the current temperature and the target temperature is determined; The heating temperature of the heating device is determined based on the difference between the temperature difference and the heating temperature. The heating device is controlled to heat the battery based on the heating temperature, and the engine is controlled to heat the battery based on the heating temperature, so that the battery reaches the target temperature.

6. A vehicle, characterized in that, include: Memory, which stores executable programs; A processor for running the program, wherein the program, when running, performs the method according to any one of claims 4 to 5.

7. 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 of any one of claims 4 to 5.

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