Dual-motor cooling control system, method and device and electronic equipment

Abstract

The invention discloses a dual-motor cooling control system, method and device and electronic equipment. The system is applied to a vehicle. The system comprises a first cooling loop used for providing cooling operation for the generator so as to obtain first initial flow demand information, and the first initial flow demand information is used for representing cooling lubrication flow required by the generator; the second cooling loop is connected with the first cooling loop and used for providing cooling operation for the driving motor so as to obtain second initial flow demand information, and the second initial flow demand information is used for representing cooling and lubricating flow needed by the driving motor; and the control loop is connected between the first cooling loop and the second cooling loop and used for controlling the cooling and lubricating flow flowing to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information so as to output target flow demand information. The technical problem that the cooling efficiency of the vehicle motor is low is solved.

Description

Technical Field

[0001] This invention relates to the field of motor control technology in vehicles, and more specifically, to a dual-motor cooling control system, method, apparatus, and electronic equipment. Background Technology

[0002] To improve vehicle lifespan, it's essential to ensure that both motors and the reducer operate under cooled and lubricated conditions. Currently, the cooling systems of the generator and drive motor are connected in parallel to ensure proper cooling and lubrication for these two critical components. However, the cooling and lubrication requirements of each component vary significantly depending on the vehicle's operating conditions, leading to the technical problem of low cooling efficiency in the vehicle's motors.

[0003] There is currently no effective solution to the technical problem of low cooling efficiency of vehicle motors. Summary of the Invention

[0004] This invention provides a dual-motor cooling control system, method, apparatus, and electronic device to at least solve the technical problem of low cooling efficiency of vehicle motors.

[0005] According to one aspect of the invention, a dual-motor cooling control system is provided, applied to a vehicle. The system includes: a first cooling circuit for providing cooling operation to a generator to obtain first initial flow requirement information, wherein the first initial flow requirement information characterizes the cooling and lubrication flow required by the generator; a second cooling circuit connected to the first cooling circuit for providing cooling operation to a drive motor to obtain second initial flow requirement information, wherein the second initial flow requirement information characterizes the cooling and lubrication flow required by the drive motor; and a control circuit connected between the first and second cooling circuits for controlling the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow requirement information, to output target flow requirement information, wherein the target flow requirement information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first and second cooling circuits.

[0006] Optionally, the first cooling circuit includes: a generator connected to the control circuit for providing electrical energy to the battery in the vehicle; an engine connected to the generator for providing power to the vehicle; clutch shaft gears connected to the engine for connecting the engine to the transmission system of the vehicle; and differential shaft gears connected between the clutch shaft gears and the second cooling circuit for distributing power to the wheels of the vehicle.

[0007] Optionally, the second cooling circuit includes: a drive motor connected to the control circuit for providing driving force to the vehicle's wheels; a first-stage reduction gear of the drive motor connected to the drive motor for decelerating the vehicle to obtain the vehicle's initial torque; and a second-stage reduction gear of the drive motor connected between the first cooling circuit and the first-stage reduction gear of the drive motor for adjusting the initial torque.

[0008] Optionally, the control circuit includes: an oil pan, a suction filter, an electric oil pump, a cooler, a filter press, and an electromagnetic diverter valve. The oil pan is used to store the vehicle's coolant, the suction filter is used to filter impurities in the coolant, the electric oil pump is used to deliver the coolant, the cooler is used to lower the temperature of the coolant, the filter press is used to filter the coolant after lowering its temperature, and the electromagnetic diverter valve is connected between the first cooling circuit and the second cooling circuit to control the cooling and lubrication flow rate to the first cooling circuit and the second cooling circuit.

[0009] According to one aspect of the present invention, a cooling control method for a dual-motor system is provided. The method is applied to a dual-motor cooling control system, which includes a first cooling circuit, a second cooling circuit, and a control circuit. The method includes: using the first cooling circuit to provide cooling operation to a generator to obtain first initial flow demand information; and using the second cooling circuit to provide cooling operation to a drive motor to obtain second initial flow demand information. The first initial flow demand information characterizes the cooling and lubrication flow required by the generator, and the second initial flow demand information characterizes the cooling and lubrication flow required by the drive motor. The control circuit is triggered to control the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow demand information, and outputs target flow demand information. The target flow demand information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by both the first and second cooling circuits.

[0010] Optionally, the trigger control loop controls the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow demand information, and outputs target flow demand information, including: triggering the control loop to obtain preset flow demand information of the cooling control system within a target time period; determining the first and second initial flow demand information as initial flow demand information, and performing a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; comparing the initial difference with a difference threshold to obtain a comparison result; and adjusting the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0011] Optionally, based on the comparison results, the position of the electromagnetic diverter valve in the control loop is adjusted to obtain the target flow demand information, including: in response to the comparison result that the initial difference is greater than the difference threshold, the cooling and lubrication flow of the electric oil pump in the cooling control system is increased, and then the position of the electromagnetic diverter valve is adjusted to obtain the target flow demand information; in response to the comparison result that the initial difference is less than or equal to the difference threshold, the position of the electromagnetic diverter valve is adjusted, and then the cooling and lubrication flow of the electric oil pump is decreased to obtain the target flow demand information.

[0012] According to one aspect of the present invention, a cooling control device for dual motors is provided. The device may include: a determining unit, configured to provide cooling operation to a generator using a first cooling circuit to obtain first initial flow requirement information, and to provide cooling operation to a drive motor using a second cooling circuit to obtain second initial flow requirement information, wherein the first initial flow requirement information characterizes the cooling and lubrication flow required by the generator, and the second initial flow requirement information characterizes the cooling and lubrication flow required by the drive motor; and an output unit, configured to trigger a control circuit to control the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow requirement information, and output target flow requirement information, wherein the target flow requirement information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first and second cooling circuits.

[0013] According to another aspect of the present invention, an electronic device 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.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] According to another aspect of the present invention, a vehicle is also provided that implements the methods of the various embodiments of the present invention when executed.

[0019] In this embodiment of the invention, a first cooling circuit can be used to provide cooling operation for a generator to obtain first initial flow requirement information characterizing the cooling and lubrication flow required by the generator. A second cooling circuit can be connected to the first cooling circuit to provide cooling operation for a drive motor to obtain second initial flow requirement information characterizing the cooling and lubrication flow required by the drive motor. A control circuit can be connected between the first and second cooling circuits to control the cooling and lubrication flow to the first and second cooling circuits based on the obtained first and second initial flow requirement information, thereby achieving the purpose of outputting target flow requirement information. Since the embodiment of the invention obtains the first initial flow requirement information of the first cooling circuit and the second flow requirement information of the second cooling circuit respectively, the cooling and lubrication flow in the first and second cooling circuits can be controlled by the control circuit to obtain the target flow requirement information, thereby solving the technical problem of low cooling efficiency of vehicle motors and achieving the technical effect of improving the cooling efficiency of vehicle motors. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of a dual-motor cooling control system according to an embodiment of the present invention;

[0022] Figure 2 This is a flowchart of a cooling control method for dual motors according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a hybrid dual-motor cooling system according to an embodiment of the present invention;

[0024] Figure 4 This is a flowchart of a hybrid dual-motor cooling control method according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of a dual-motor cooling control device according to an embodiment of the present invention. Detailed Implementation

[0026] 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.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] According to an embodiment of the present invention, a cooling control system for dual motors is provided. It should be noted that the steps shown in the flowcharts of 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 flowcharts, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0029] The cooling control system for dual motors according to an embodiment of the present invention will be described below.

[0030] Figure 1 This is a schematic diagram of a dual-motor cooling control system according to an embodiment of the present invention, as shown below. Figure 1 As shown, the system may include: a first cooling circuit 10, a second cooling circuit 20, and a control circuit 30.

[0031] The first cooling circuit 10 is used to provide cooling operation for the generator to obtain first initial flow demand information, wherein the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator.

[0032] The second cooling circuit 20, connected to the first cooling circuit, is used to provide cooling operation for the drive motor to obtain second initial flow demand information, wherein the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor.

[0033] The control loop 30 is connected between the first cooling loop and the second cooling loop. It is used to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, so as to output target flow demand information. The target flow demand information is used to characterize the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first cooling loop and the cooling and lubrication flow required by the second cooling loop.

[0034] In this embodiment of the invention, the dual-motor cooling control system can be referred to as a hybrid dual-motor cooling system, or simply a cooling system. The first cooling circuit includes a generator, which can be called a generator circuit or generator route. The generator in the hybrid dual-motor cooling system is used to charge the battery or directly supply power to the vehicle's electrical system.

[0035] Optionally, cooling operations are used to manage the temperature of critical components, with the aim of maintaining the engine, motor, and their associated gear systems within a safe and optimal operating temperature range to ensure system reliability and performance.

[0036] Optionally, the second cooling circuit includes a drive motor, which can be referred to as a drive motor circuit or a drive motor route. The drive motor is used to propel the vehicle.

[0037] In this embodiment of the invention, in response to the target operating mode of the hybrid dual-motor cooling system, a first cooling circuit is used to provide cooling operation for the generator to obtain first initial flow demand information; in response to the target operating mode of the hybrid dual-motor cooling system, a second cooling circuit is connected to the first cooling circuit to provide cooling operation for the drive motor to obtain second initial flow demand information; in response to the target operating mode of the hybrid dual-motor cooling system, a control circuit is connected between the first cooling circuit and the second cooling circuit to control the cooling and lubrication flow to the first cooling circuit and the second cooling circuit based on the first initial flow demand information and the second initial flow demand information, so as to output the target flow demand information.

[0038] Optionally, the target operating mode is used to characterize the operating mode under target operating conditions where the cooling and lubrication flow in the hybrid dual-motor cooling system is controlled and adjusted to meet the cooling requirements of the engine, generator, drive motor, and their related components. The operating modes in the cooling system may include: pure electric mode, series mode, engine direct drive mode, parallel mode, and energy recovery mode, and the target operating mode can be any of the above modes.

[0039] Optionally, the pure electric mode represents a vehicle that relies entirely on electrical energy provided by the drive motor and battery pack to drive the wheels, with the engine off and not contributing power. The series mode represents the engine acting as a generator, with the drive motor converting electrical energy into the energy required for vehicle propulsion. The engine direct drive mode represents the engine driving the wheels directly through the transmission, without needing to convert the energy into electricity for the drive motor.

[0040] Optionally, the parallel mode characterizes the ability of the engine and drive motor to simultaneously or independently provide driving force to the wheels, with both contributing directly to the vehicle's propulsion through hardware connection. The energy recovery mode characterizes the energy stored in the battery during deceleration or braking for later use.

[0041] Optionally, after obtaining the first initial flow demand information and the second initial flow demand information, the cooling and lubrication flow to the first cooling circuit and the second cooling circuit is controlled by adjusting the position of the electromagnetic diverter valve in the control circuit, so as to achieve the purpose of outputting the target flow demand information.

[0042] In this embodiment of the invention, a first cooling circuit can be used to provide cooling operation for a generator to obtain first initial flow requirement information characterizing the cooling and lubrication flow required by the generator. A second cooling circuit can be connected to the first cooling circuit to provide cooling operation for a drive motor to obtain second initial flow requirement information characterizing the cooling and lubrication flow required by the drive motor. A control circuit can be connected between the first and second cooling circuits to control the cooling and lubrication flow to the first and second cooling circuits based on the obtained first and second initial flow requirement information, thereby achieving the purpose of outputting target flow requirement information. Since the first initial flow requirement information of the first cooling circuit and the second flow requirement information of the second cooling circuit are obtained respectively, the cooling and lubrication flow in the first and second cooling circuits can be controlled by the control circuit to obtain the target flow requirement information, thereby solving the technical problem of low cooling efficiency of vehicle motors and achieving the technical effect of improving the cooling efficiency of vehicle motors.

[0043] The system described in this embodiment will be further described below.

[0044] As an alternative embodiment, the first cooling circuit includes: a generator connected to a control circuit for providing electrical energy to the battery in the vehicle; an engine connected to the generator for providing power to the vehicle; a clutch shaft gear connected to the engine for connecting the engine to the transmission system of the vehicle; and a differential shaft gear connected between the clutch shaft gear and the second cooling circuit for distributing power to the wheels of the vehicle.

[0045] In this embodiment, the first cooling circuit 10 includes: a generator 11, an engine 12, a clutch shaft gear 13, and a differential shaft gear 14. The generator is connected to a control circuit to provide electrical energy to the vehicle's battery; the engine is connected to the generator to provide power to the vehicle; the clutch shaft gear is connected to the engine to connect the engine to the gears of the vehicle's transmission system; and the differential shaft gear is connected between the clutch shaft gear and the second cooling circuit to distribute power to the vehicle's wheels.

[0046] Optionally, when the vehicle's cooling system is in direct drive mode, the generator can serve as an auxiliary or additional power source to provide driving force to the vehicle. When the vehicle's cooling system is in direct drive mode, the engine can directly drive the vehicle, or when the vehicle's cooling system is in series mode, electrical energy is indirectly provided through the generator.

[0047] Optionally, the clutch shaft teeth are part of the clutch assembly in a vehicle, used to connect the engine and the transmission system, enabling the transmission and disconnection of power. The contact state and workload of the clutch shaft teeth can be used to reflect whether the engine is transmitting power directly to the wheels, and the efficiency of power transmission between the engine and the transmission system in direct drive mode.

[0048] Optionally, differential gears are part of the differential assembly used to distribute power between the left and right wheels, allowing the wheels to rotate at different speeds, especially when the vehicle is cornering. Differential gears can be used to characterize the operating state and efficiency of the differential, and how effectively the driving forces of the left and right wheels are balanced under different operating conditions (e.g., driving straight, cornering), ensuring the stability and handling of the vehicle.

[0049] As an optional embodiment, the second cooling circuit includes: a drive motor connected to the control circuit for providing driving force to the wheels of the vehicle; a first-stage reduction gear of the drive motor connected to the drive motor for decelerating the vehicle to obtain the initial torque of the vehicle; and a second-stage reduction gear of the drive motor connected between the first cooling circuit and the first-stage reduction gear of the drive motor for adjusting the initial torque.

[0050] In this embodiment, the second cooling circuit 20 includes: a drive motor 21, a first-stage reduction gear 22, and a second-stage reduction gear 23. The drive motor is connected to the control circuit and provides driving force to the vehicle's wheels. The first-stage reduction gear is connected to the drive motor and decelerates the vehicle to obtain its initial torque. The second-stage reduction gear connects the first cooling circuit and the first-stage reduction gear and adjusts the initial torque. The first-stage reduction gear and the second-stage reduction gear can be simply referred to as the first-stage reduction gear.

[0051] Optionally, the drive motor can directly provide driving force to the wheels of the vehicle and is the main power source in the electric drive mode of the hybrid system. When the cooling system is in electric drive mode, the drive motor is used to maximize the use of battery power to drive the vehicle. At the same time, when the cooling system is in energy recovery mode, it can be converted into a generator to recover braking energy.

[0052] Optionally, both the primary and secondary reduction gears of the drive motor belong to the reduction gearbox of the drive motor, used to convert the high speed of the motor into the low speed and high torque required by the wheels. The condition of the primary and secondary reduction gears of the drive motor is used to characterize the working performance and cooling requirements of the reducer under different operating conditions. Especially in the electric drive mode with high torque output, the temperature and wear of the reduction gears are crucial to the reliability of the entire system.

[0053] As an optional embodiment, the control circuit includes: an oil pan, a suction filter, an electric oil pump, a cooler, a filter press, and an electromagnetic diverter valve. The oil pan is used to store the vehicle's coolant, the suction filter is used to filter impurities in the coolant, the electric oil pump is used to deliver the coolant, the cooler is used to lower the temperature of the coolant, the filter press is used to filter the coolant after its temperature has been lowered, and the electromagnetic diverter valve is connected between a first cooling circuit and a second cooling circuit to control the cooling and lubrication flow rate to the first and second cooling circuits.

[0054] In this embodiment, the control circuit 30 includes: an oil pan 31, a suction filter 32, an electric oil pump 33, a cooler 34, a filter press 35, and an electromagnetic diverter valve 36. The oil pan stores the vehicle's coolant, the suction filter filters impurities from the coolant, the electric oil pump delivers the coolant, the cooler lowers the coolant temperature, the filter press filters the coolant after its temperature has been lowered, and the electromagnetic diverter valve connects between the first and second cooling circuits to control the cooling and lubrication flow rate to both circuits.

[0055] Optionally, the oil pan is the lowest reservoir in the cooling system, typically located at the bottom of the engine or transmission. The oil pan provides information on the storage and replenishment status of the coolant (such as lubricating oil) in the cooling system. It marks the beginning and end of the coolant circulation, ensuring a sufficient coolant supply and allowing for the collection and storage of used coolant for reuse.

[0056] Optionally, a suction filter is installed before the oil pump inlet to filter impurities and particulate matter in the coolant in the oil pan, preventing these impurities or particulate matter from entering the vehicle's cooling circulation system and protecting subsequent cooling and lubrication components. The suction filter provides preliminary purification of the coolant, ensuring that the coolant entering the electric oil pump is clean, reducing system wear, and maintaining the efficient operation of the cooling system.

[0057] Alternatively, the electric oil pump is the power source that drives the coolant circulation in the system. It draws coolant from the oil pan and delivers it through the system to the engine, motor, and other parts requiring cooling and lubrication. The performance of the electric oil pump directly affects the cooling effect and energy consumption of the cooling system.

[0058] Optionally, a cooler is used to dissipate heat from the coolant through heat exchange with the external environment, thereby lowering the coolant temperature. The effectiveness of the cooler is crucial for maintaining the system's internal temperature within a safe range. A filter press, located in the coolant circuit, typically after the cooler, is used to filter the coolant again before it returns to the oil pan, further removing any tiny particles that may have accumulated during circulation and ensuring the cleanliness of the coolant.

[0059] Optionally, the electromagnetic diverter valve is used to automatically adjust its opening degree according to the current operating conditions of the dual-motor system, thereby changing the distribution ratio of the cooling and lubricating medium between the drive motor circuit and the generator circuit. In different operating modes (e.g., direct drive mode, electric drive mode, energy recovery mode, etc.), the cooling requirements of the two motors will differ. The electromagnetic diverter valve, through dynamic adjustment, ensures that the coolant flow rate can respond promptly to these changes in demand, thus avoiding resource waste and improving cooling efficiency.

[0060] In this embodiment of the invention, when the hybrid dual-motor cooling system is in pure electric mode, there is no cooling and lubrication flow requirement between the generator and the generator shaft gear, but the cooling and lubrication flow requirements of the drive motor, the first-stage reduction gear of the drive motor, and the second-stage reduction gear of the drive motor are large. When the hybrid dual-motor cooling system is in series mode, the generator, the generator shaft gear, the drive motor, the first-stage reduction gear of the drive motor, and the second-stage reduction gear of the drive motor all have cooling and lubrication requirements, but the requirements are different, and the flow can be distributed by adjusting the position of the electromagnetic diversion valve.

[0061] Optionally, when the hybrid dual-motor cooling system is in engine direct drive mode, the cooling and lubrication flow requirements of the generator and generator shaft gear are large, while the cooling and lubrication flow requirements of the drive motor, drive motor first-stage reduction gear shaft gear and drive motor second-stage reduction gear shaft gear are small. When the hybrid dual-motor cooling system is in parallel mode, the generator, generator shaft gear, drive motor, drive motor first-stage reduction gear shaft gear and drive motor second-stage reduction gear shaft gear all have cooling and lubrication requirements, but the requirements are different. The flow distribution can be achieved by adjusting the position of the electromagnetic diverter valve.

[0062] Furthermore, when the hybrid dual-motor cooling system is in energy recovery mode, the cooling and lubrication flow requirements for the generator and generator shaft gears are high, while the cooling and lubrication flow requirements for the drive motor, drive motor first-stage reduction gear shaft gears, and drive motor second-stage reduction gear shaft gears are low. When switching between different operating modes or when the drive power of the generator changes, the cooling flow requirements on the drive motor side and the generator side differ. By adjusting the total flow rate of the electric oil pump and the position of the electromagnetic diverter valve, precise distribution of cooling flow can be achieved.

[0063] In this embodiment of the invention, a first cooling circuit can be used to provide cooling operation for a generator to obtain first initial flow requirement information characterizing the cooling and lubrication flow required by the generator. A second cooling circuit can be connected to the first cooling circuit to provide cooling operation for a drive motor to obtain second initial flow requirement information characterizing the cooling and lubrication flow required by the drive motor. A control circuit can be connected between the first and second cooling circuits to control the cooling and lubrication flow to the first and second cooling circuits based on the obtained first and second initial flow requirement information, thereby achieving the purpose of outputting target flow requirement information. Since the first initial flow requirement information of the first cooling circuit and the second flow requirement information of the second cooling circuit are obtained respectively, the cooling and lubrication flow in the first and second cooling circuits can be controlled by the control circuit to obtain the target flow requirement information, thereby solving the technical problem of low cooling efficiency of vehicle motors and achieving the technical effect of improving the cooling efficiency of vehicle motors.

[0064] According to an embodiment of the present invention, a cooling control method for dual motors is 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. 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.

[0065] The cooling control method for dual motors according to an embodiment of the present invention will be described below.

[0066] Figure 2This is a flowchart of a dual-motor cooling control method according to an embodiment of the present invention, such as... Figure 2 As shown, this method can be applied to a cooling control system for dual motors. The cooling control system includes a first cooling circuit, a second cooling circuit, and a control circuit. The cooling control method for the dual motors can include the following steps:

[0067] Step S201: Use the first cooling circuit to provide cooling operation for the generator to obtain first initial flow demand information, and use the second cooling circuit to provide cooling operation for the drive motor to obtain second initial flow demand information.

[0068] In the technical solution provided by step S201 of the present invention, the first cooling circuit can be used to provide cooling operation for the generator in order to obtain the first initial flow demand information, and the second cooling circuit can be used to provide cooling operation for the drive motor in order to obtain the second initial flow demand information.

[0069] Optionally, the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator, and the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor.

[0070] Optionally, the first initial flow requirement information can be the original cooling and lubrication flow rate of the first cooling circuit. The second initial flow requirement information can be the original cooling and lubrication flow rate of the second cooling circuit.

[0071] For example, the original cooling and lubrication flow rate required for the first cooling circuit and the original cooling and lubrication flow rate required for the second cooling circuit are obtained, and then the original cooling and lubrication flow rates obtained from the different circuits are adjusted by the control circuit so that the adjusted cooling and lubrication flow rates meet the original cooling and lubrication flow rates required for the first cooling circuit and the second cooling circuit.

[0072] It is understood that this is only a preferred embodiment for obtaining the first initial traffic demand information and the second initial traffic demand information, and the process and method for obtaining the first initial traffic demand information and the second initial traffic demand information are not specifically limited.

[0073] In step S202, the trigger control loop controls the cooling and lubrication flow to the first cooling circuit and the second cooling circuit based on the first initial flow demand information and the second initial flow demand information, and outputs the target flow demand information.

[0074] In the technical solution provided by step S202 of the present invention, the control loop can be triggered to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, so as to achieve the purpose of outputting the target flow demand information.

[0075] Optionally, the target flow requirement information is used to characterize the cooling and lubrication flow in the vehicle, to meet the cooling and lubrication flow required by the first cooling circuit, and the cooling and lubrication flow required by the second cooling circuit.

[0076] Optionally, after obtaining the first initial flow demand information and the second initial flow demand information, the position of the electromagnetic diverter valve in the control loop is adjusted to control the cooling and lubrication flow to the first cooling loop and the second cooling loop, and the target flow demand information is output.

[0077] It should be noted that this is only a preferred embodiment for obtaining target flow demand information, and the process and method of obtaining target flow demand information are not specifically limited. As long as the trigger control loop controls the cooling and lubrication flow to the first cooling circuit and the second cooling circuit based on the first initial flow demand information and the second initial flow demand information, the process and method of outputting target flow demand information are all within the protection scope of this invention, and will not be listed here.

[0078] In steps S201 and S202 of the present invention, the first cooling circuit can be used to provide cooling operation for the generator to obtain the first initial flow demand information, and the second cooling circuit can be used to provide cooling operation for the drive motor to obtain the second initial flow demand information. Based on the first and second initial flow demand information, the position of the electromagnetic diverter valve in the control circuit is adjusted to control the cooling and lubrication flow to the first and second cooling circuits so as to output the target flow demand information. Since it is considered that after obtaining the first and second initial flow demand information, the position of the electromagnetic diverter valve in the control circuit can be adjusted to control and adjust the cooling and lubrication flow of different circuits in the cooling system, the technical problem of low cooling efficiency of vehicle motor is solved, and the technical effect of improving the cooling efficiency of vehicle motor is achieved.

[0079] The method described in this embodiment will be further described below.

[0080] As an optional embodiment, step S202, triggering the control loop to control the cooling and lubrication flow to the first and second cooling loops based on the first and second initial flow demand information, and outputting target flow demand information, includes: triggering the control loop to obtain preset flow demand information of the cooling control system within a target time period; determining the first and second initial flow demand information as initial flow demand information, and performing a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; comparing the initial difference with a difference threshold to obtain a comparison result; and adjusting the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0081] In this embodiment, a control loop is triggered to obtain the preset flow demand information of the cooling control system within the target time period. Then, the initial flow demand information and the preset flow demand information are subtracted to obtain an initial difference. The initial difference can be compared with the difference threshold to obtain a comparison result. Furthermore, based on the above comparison result, the position of the electromagnetic diverter valve in the control loop can be adjusted to obtain the target flow demand information.

[0082] Optionally, the preset traffic demand information can be used to characterize the total traffic demand of the drive motor route and the generator route. The target time period can be the target time. The initial difference can be simply referred to as the difference. The initial traffic demand information can be the traffic demand obtained at the previous time. The difference threshold can be a preset threshold, such as 0.

[0083] For example, when the cooling and lubrication demand changes, the total flow demand of the drive motor route and the generator route is obtained, and the difference between the flow demand at the target time and the previous time is calculated. Then, this difference is compared with the difference threshold to adjust the position of the electromagnetic diverter valve in the control loop to obtain the target flow demand information.

[0084] As an optional embodiment, based on the comparison results, the position of the electromagnetic diverter valve in the control loop is adjusted to obtain the target flow demand information, including: in response to the comparison result that the initial difference is greater than the difference threshold, the cooling and lubrication flow of the electric oil pump in the cooling control system is increased, and then the position of the electromagnetic diverter valve is adjusted to obtain the target flow demand information; in response to the comparison result that the initial difference is less than or equal to the difference threshold, the position of the electromagnetic diverter valve is adjusted, and then the cooling and lubrication flow of the electric oil pump is decreased to obtain the target flow demand information.

[0085] In this embodiment, after obtaining the comparison results, if the initial difference is greater than the difference threshold, the cooling and lubrication flow rate of the electric oil pump in the cooling control system is increased, and then the position of the electromagnetic diverter valve is adjusted to obtain the target flow rate requirement information. For example, when the difference is greater than 0, the flow rate of the electric oil pump is first increased to meet the cooling flow rate requirement of the previous moment, and the newly added cooling and lubrication route is pre-lubricated. Then, the position of the electromagnetic diverter valve is adjusted to meet the cooling and lubrication requirements of the two routes respectively.

[0086] Optionally, if the comparison result shows that the initial difference is less than or equal to the difference threshold, the position of the electromagnetic diverter valve is adjusted, and then the cooling and lubrication flow rate of the electric oil pump is reduced to obtain the target flow rate requirement information. For example, when the difference is less than or equal to 0, the position of the electromagnetic diverter valve is adjusted first to ensure that the cooling and lubrication requirements of the previous moment are met, and then the flow rate of the electric oil pump is reduced.

[0087] In this embodiment, a first cooling circuit can be used to provide cooling operation for the generator to obtain first initial flow demand information, and a second cooling circuit can be used to provide cooling operation for the drive motor to obtain second initial flow demand information. Based on the first and second initial flow demand information, the position of the electromagnetic diverter valve in the control circuit is adjusted to control the cooling and lubrication flow to the first and second cooling circuits, so as to output the target flow demand information. Since the first and second initial flow demand information can be obtained, the position of the electromagnetic diverter valve in the control circuit can be adjusted to control and adjust the cooling and lubrication flow of different circuits in the cooling system, thereby solving the technical problem of low cooling efficiency of vehicle motors and achieving the technical effect of improving the cooling efficiency of vehicle motors.

[0088] The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

[0089] A vehicle's dual-motor hybrid system typically includes a generator, a drive motor, and a reducer. To improve the vehicle's lifespan, it's essential to ensure that the dual motors and reducer operate under cooled and lubricated conditions. In existing technologies, the cooling systems of the generator and drive motor are connected in parallel to ensure these two critical components receive adequate cooling and lubrication. However, the cooling and lubrication requirements of each component vary significantly depending on the vehicle's operating conditions, leading to the technical problem of low cooling efficiency in the vehicle's motors.

[0090] Therefore, to solve the above problems, the present invention provides a dual-motor cooling control system. The system includes: a first cooling circuit for providing cooling operation to a generator to obtain first initial flow requirement information characterizing the cooling and lubrication flow required by the generator; a second cooling circuit connected to the first cooling circuit for providing cooling operation to a drive motor to obtain second initial flow requirement information characterizing the cooling and lubrication flow required by the drive motor; and a control circuit connected between the first and second cooling circuits for controlling the cooling and lubrication flow to the first and second cooling circuits based on the obtained first and second initial flow requirement information, thereby achieving the goal of outputting target flow requirement information. Since the first initial flow requirement information of the first cooling circuit and the second flow requirement information of the second cooling circuit are obtained respectively, the cooling and lubrication flow in the first and second cooling circuits can be controlled through the control circuit to obtain the target flow requirement information, thus solving the technical problem of low cooling efficiency of vehicle motors and achieving the technical effect of improving the cooling efficiency of vehicle motors.

[0091] In this embodiment of the invention, a hybrid dual-motor cooling control method is proposed. The method includes: using an electromagnetic diverter valve to build a parallel cooling system loop to achieve precise allocation of cooling and lubrication flow rates for the drive motor and generator routes. For example, when the system is in direct drive mode, the flow rate on the drive motor side is reduced and the flow rate on the generator side is increased, significantly improving the efficiency of the cooling oil pump; when switching to electric drive mode, the position of the electromagnetic diverter valve is adjusted in advance to achieve gear pre-lubrication, improve electric drive efficiency, and ensure normal operation of the electric drive system.

[0092] In this embodiment, such as Figure 1 As shown, the hybrid dual-motor cooling system may include: a first cooling circuit 10, a second cooling circuit 20, and a control circuit 30. Figure 3 This is a schematic diagram of a hybrid dual-motor cooling system according to an embodiment of the present invention, as shown below. Figure 3 As shown, the first cooling circuit 10 includes: a generator 11, an engine 12, a clutch shaft gear 13, and a differential shaft gear 14. The second cooling circuit 20 includes: a drive motor 21, a drive motor first-stage reduction shaft gear 22, and a drive motor second-stage reduction shaft gear 23. The control circuit 30 includes: an oil pan 31, a suction filter 32, an electric oil pump 33, a cooler 34, a filter press 35, and a solenoid flow divider valve 36.

[0093] Optionally, the operating modes of the hybrid dual-motor cooling system may include: pure electric mode, series mode, engine direct drive mode, parallel mode, and energy recovery mode.

[0094] Optionally, when the hybrid dual-motor cooling system is in pure electric mode, there is no cooling and lubrication flow requirement between the generator and the generator shaft gear, but the cooling and lubrication flow requirements of the drive motor, the first-stage reduction gear of the drive motor, and the second-stage reduction gear of the drive motor are large.

[0095] Optionally, when the hybrid dual-motor cooling system is in series mode, the generator, generator shaft gear, drive motor, drive motor first-stage reduction gear shaft gear, and drive motor second-stage reduction gear shaft gear all have cooling and lubrication requirements, but the requirements differ. The flow can be distributed by adjusting the position of the electromagnetic diversion valve.

[0096] Optionally, when the hybrid dual-motor cooling system is in engine direct drive mode, the cooling and lubrication flow requirements of the generator and generator shaft gear are large, while the cooling and lubrication flow requirements of the drive motor, drive motor first-stage reduction shaft gear and drive motor second-stage reduction shaft gear are small.

[0097] Optionally, when the hybrid dual-motor cooling system is in parallel mode, the generator, generator shaft gear, drive motor, drive motor first-stage reduction gear shaft gear, and drive motor second-stage reduction gear shaft gear all have cooling and lubrication requirements, but the requirements differ. The flow can be distributed by adjusting the position of the electromagnetic diversion valve.

[0098] Optionally, when the hybrid dual-motor cooling system is in energy recovery mode, the cooling and lubrication flow requirements for the generator and generator shaft gears are high, while the cooling and lubrication flow requirements for the drive motor, drive motor first-stage reduction gear shaft gears, and drive motor second-stage reduction gear shaft gears are low. When switching between different operating modes or when the driving power of the generator changes, the cooling flow requirements on the drive motor side and the generator side differ. By adjusting the total flow rate of the electric oil pump and the position of the electromagnetic diverter valve, precise distribution of cooling flow can be achieved.

[0099] In an embodiment of the present invention, Figure 4 This is a flowchart of a hybrid dual-motor cooling control method according to an embodiment of the present invention. Figure 4 As shown, the hybrid dual-motor cooling control method may include the following steps:

[0100] Step S401: Obtain the total cooling and lubrication requirements for the drive motor route and the generator route.

[0101] Step S402: Calculate the difference between the total cooling and lubrication demand information at the target time and the total cooling and lubrication demand information at the previous time.

[0102] Step S403: Determine whether the difference is greater than 0.

[0103] In this embodiment, it is necessary to determine whether the difference is greater than 0. If the difference is greater than 0, then step S404 is executed; if the difference is not greater than 0, then step S405 is executed.

[0104] Step S404: Adjust the total flow rate of the electric oil pump, then calculate the cooling and lubrication requirements of the drive motor route and the generator route, and then adjust the position of the electromagnetic diverter valve.

[0105] Step S405: Calculate the cooling and lubrication requirements of the drive motor route and the generator route, then adjust the position of the electromagnetic diverter valve, and thus adjust the flow rate of the electric oil pump.

[0106] In steps S401 to S405 of this invention, when the cooling and lubrication demand changes, the total flow demand of the drive motor route and the generator route is obtained, and the difference between the flow demand at the target time and the previous time is calculated. There are three possibilities: greater than 0, less than 0, and equal to 0. When the difference is greater than 0, the flow rate of the electric oil pump is first increased to meet the cooling flow demand of the previous time. Simultaneously, the newly added cooling and lubrication route is pre-lubricated. Then, the position of the electromagnetic diverter valve is adjusted to meet the cooling and lubrication demands of each of the two routes. When the difference is less than 0 or equal to 0, the position of the electromagnetic diverter valve is first adjusted to ensure that the cooling and lubrication demand of the previous time is met. Then, the flow rate of the electric oil pump is decreased.

[0107] In this embodiment, a first cooling circuit can be used to provide cooling operation for the generator to obtain first initial flow demand information, and a second cooling circuit can be used to provide cooling operation for the drive motor to obtain second initial flow demand information. Based on the first and second initial flow demand information, the position of the electromagnetic diverter valve in the control circuit is adjusted to control the cooling and lubrication flow to the first and second cooling circuits, so as to output the target flow demand information. Since the first and second initial flow demand information can be obtained, the position of the electromagnetic diverter valve in the control circuit can be adjusted to control and adjust the cooling and lubrication flow of different circuits in the cooling system, thereby solving the technical problem of low cooling efficiency of vehicle motors and achieving the technical effect of improving the cooling efficiency of vehicle motors.

[0108] According to an embodiment of the present invention, a cooling control device for dual motors is provided. It should be noted that this cooling control device for dual motors can be used to execute a cooling control method for dual motors as described in the embodiment.

[0109] Figure 5 This is a schematic diagram of a dual-motor cooling control device according to an embodiment of the present invention. Figure 5 As shown, a dual-motor cooling control device 500 may include a determining unit 501 and an output unit 502.

[0110] The determining unit 501 is used to provide cooling operation for the generator using the first cooling circuit to obtain first initial flow demand information, and to provide cooling operation for the drive motor using the second cooling circuit to obtain second initial flow demand information, wherein the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator, and the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor.

[0111] The output unit 502 is used to trigger the control loop to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, and output the target flow demand information, wherein the target flow demand information is used to characterize the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first cooling loop and the cooling and lubrication flow required by the second cooling loop.

[0112] Optionally, the output unit 502 may include: a first acquisition module, used to trigger the control loop and acquire the preset flow demand information of the cooling control system within a target time period; a second acquisition module, used to determine the first initial flow demand information and the second initial flow demand information as the initial flow demand information, and to perform a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; a third acquisition module, used to compare the initial difference with a difference threshold to obtain a comparison result; and a fourth acquisition module, used to adjust the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0113] Optionally, the fourth acquisition module may include: a first acquisition submodule, used to increase the cooling and lubrication flow rate of the electric oil pump in the cooling control system in response to the comparison result being that the initial difference is greater than the difference threshold, and then adjust the position of the electromagnetic diverter valve to obtain the target flow rate requirement information; and a second acquisition submodule, used to adjust the position of the electromagnetic diverter valve in response to the comparison result being that the initial difference is less than or equal to the difference threshold, and then decrease the cooling and lubrication flow rate of the electric oil pump to obtain the target flow rate requirement information.

[0114] In this embodiment, a determining unit uses a first cooling circuit to provide cooling operation for the generator to obtain first initial flow requirement information, and uses a second cooling circuit to provide cooling operation for the drive motor to obtain second initial flow requirement information. The first initial flow requirement information characterizes the cooling and lubrication flow required by the generator, and the second initial flow requirement information characterizes the cooling and lubrication flow required by the drive motor. An output unit triggers a control circuit based on the first and second initial flow requirement information to control the cooling and lubrication flow to the first and second cooling circuits, outputting target flow requirement information. This target flow requirement information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow requirements of both the first and second cooling circuits. This solves the technical problem of low cooling efficiency in vehicle motors and achieves the technical effect of improving the cooling efficiency of vehicle motors.

[0115] According to embodiments of the present invention, an electronic device 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.

[0116] Optionally, the method is applied to a cooling control system for a dual-motor system, the cooling control system comprising: a first cooling circuit, a second cooling circuit, and a control circuit. The electronic device is further configured to: provide cooling operation to the generator using the first cooling circuit to obtain first initial flow demand information, and provide cooling operation to the drive motor using the second cooling circuit to obtain second initial flow demand information, wherein the first initial flow demand information characterizes the cooling and lubrication flow required by the generator, and the second initial flow demand information characterizes the cooling and lubrication flow required by the drive motor; trigger the control circuit to control the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow demand information, and output target flow demand information, wherein the target flow demand information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first and second cooling circuits.

[0117] Optionally, the electronic device is further configured to: trigger the control loop to control the cooling and lubrication flow to the first and second cooling loops based on the first and second initial flow demand information, and output target flow demand information, including: triggering the control loop to acquire preset flow demand information of the cooling control system within a target time period; determining the first and second initial flow demand information as initial flow demand information, and performing a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; comparing the initial difference with a difference threshold to obtain a comparison result; and adjusting the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0118] Optionally, the electronic device is also used to: adjust the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain target flow demand information, including: in response to the comparison result being that the initial difference is greater than the difference threshold, increasing the cooling and lubrication flow of the electric oil pump in the cooling control system, and then adjusting the position of the electromagnetic diverter valve to obtain target flow demand information; in response to the comparison result being that the initial difference is less than or equal to the difference threshold, adjusting the position of the electromagnetic diverter valve, and then decreasing the cooling and lubrication flow of the electric oil pump to obtain target flow demand information.

[0119] According to embodiments 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.

[0120] Optionally, the method is applied to a cooling control system for a dual-motor system, the cooling control system comprising: a first cooling circuit, a second cooling circuit, and a control circuit. The readable storage medium is further configured to: provide cooling operation to the generator using the first cooling circuit to obtain first initial flow demand information, and provide cooling operation to the drive motor using the second cooling circuit to obtain second initial flow demand information, wherein the first initial flow demand information characterizes the cooling and lubrication flow required by the generator, and the second initial flow demand information characterizes the cooling and lubrication flow required by the drive motor; trigger the control circuit to control the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow demand information, and output target flow demand information, wherein the target flow demand information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first and second cooling circuits.

[0121] Optionally, the readable storage medium is further used to: trigger a control loop to control the cooling and lubrication flow to the first and second cooling loops based on the first and second initial flow demand information, and output target flow demand information, including: triggering the control loop to acquire preset flow demand information of the cooling control system within a target time period; determining the first and second initial flow demand information as initial flow demand information, and performing a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; comparing the initial difference with a difference threshold to obtain a comparison result; and adjusting the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0122] Optionally, the readable storage medium is further used to: adjust the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain target flow demand information, including: in response to the comparison result being that the initial difference is greater than the difference threshold, increasing the cooling and lubrication flow rate of the electric oil pump in the cooling control system, and then adjusting the position of the electromagnetic diverter valve to obtain target flow demand information; in response to the comparison result being that the initial difference is less than or equal to the difference threshold, adjusting the position of the electromagnetic diverter valve, and then decreasing the cooling and lubrication flow rate of the electric oil pump to obtain target flow demand information.

[0123] According to embodiments 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.

[0124] Optionally, the method is applied to a cooling control system for a dual-motor system, which includes a first cooling circuit, a second cooling circuit, and a control circuit. The computer program product is further used to: provide cooling operation to the generator using the first cooling circuit to obtain first initial flow demand information, and provide cooling operation to the drive motor using the second cooling circuit to obtain second initial flow demand information, wherein the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator, and the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor; triggering the control circuit to control the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow demand information, and outputting target flow demand information, wherein the target flow demand information is used to characterize the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first and second cooling circuits.

[0125] Optionally, the computer program product is also used to: trigger the control loop to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, and output the target flow demand information, including: triggering the control loop to obtain the preset flow demand information of the cooling control system within the target time period; determining the first initial flow demand information and the second initial flow demand information as the initial flow demand information, and performing a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; comparing the initial difference with the difference threshold to obtain a comparison result; and adjusting the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0126] Optionally, the computer program product is also used to: adjust the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain target flow demand information, including: in response to the comparison result that the initial difference is greater than the difference threshold, increasing the cooling and lubrication flow of the electric oil pump in the cooling control system, and then adjusting the position of the electromagnetic diverter valve to obtain target flow demand information; in response to the comparison result that the initial difference is less than or equal to the difference threshold, adjusting the position of the electromagnetic diverter valve, and then decreasing the cooling and lubrication flow of the electric oil pump to obtain target flow demand information.

[0127] According to embodiments of the present invention, a computer program product is also provided, including a non-volatile computer-readable storage medium storing a computer program, which, when executed by a processor, implements the methods of various embodiments of the present invention.

[0128] According to embodiments 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.

[0129] According to embodiments of the present invention, a vehicle is also provided that implements the methods of various embodiments of the present invention when executed.

[0130] Optionally, the method is applied to a cooling control system for a dual-motor system, the cooling control system comprising: a first cooling circuit, a second cooling circuit, and a control circuit. The vehicle is further configured to: utilize the first cooling circuit to provide cooling operation for the generator to obtain first initial flow demand information, and utilize the second cooling circuit to provide cooling operation for the drive motor to obtain second initial flow demand information, wherein the first initial flow demand information characterizes the cooling and lubrication flow required by the generator, and the second initial flow demand information characterizes the cooling and lubrication flow required by the drive motor; trigger the control circuit to control the cooling and lubrication flow to the first and second cooling circuits based on the first and second initial flow demand information, and output target flow demand information, wherein the target flow demand information characterizes the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first and second cooling circuits.

[0131] Optionally, the vehicle is also used to: trigger a control loop to control the cooling and lubrication flow to the first and second cooling loops based on the first and second initial flow demand information, and output target flow demand information, including: triggering the control loop to obtain preset flow demand information of the cooling control system within a target time period; determining the first and second initial flow demand information as initial flow demand information, and performing a subtraction operation between the initial flow demand information and the preset flow demand information to obtain an initial difference; comparing the initial difference with a difference threshold to obtain a comparison result; and adjusting the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain the target flow demand information.

[0132] Optionally, the vehicle is also used to: adjust the position of the electromagnetic diverter valve in the control loop based on the comparison result to obtain target flow demand information, including: in response to the comparison result being that the initial difference is greater than the difference threshold, increasing the cooling and lubrication flow of the electric oil pump in the cooling control system, and then adjusting the position of the electromagnetic diverter valve to obtain target flow demand information; in response to the comparison result being that the initial difference is less than or equal to the difference threshold, adjusting the position of the electromagnetic diverter valve, and then decreasing the cooling and lubrication flow of the electric oil pump to obtain target flow demand information.

[0133] 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.

[0134] 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.

[0135] In the several embodiments provided by this invention, 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 can be combined or integrated into another system, or some features can be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed can be through some interfaces; the indirect coupling or communication connection of units or modules can be electrical or other forms.

[0136] 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.

[0137] 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.

[0138] 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.

[0139] 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 cooling control system for dual motors, characterized in that, Applied to vehicles, including: A first cooling circuit is used to provide cooling operation for the generator to obtain first initial flow demand information, wherein the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator; The second cooling circuit, connected to the first cooling circuit, is used to provide the cooling operation for the drive motor to obtain second initial flow demand information, wherein the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor. A control loop, connected between the first cooling loop and the second cooling loop, is used to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, so as to output target flow demand information, wherein the target flow demand information is used to characterize the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first cooling loop and the cooling and lubrication flow required by the second cooling loop.

2. The system according to claim 1, characterized in that, The first cooling circuit includes: The generator is connected to the control circuit and is used to provide electrical energy to the battery in the vehicle. An engine, connected to the generator, is used to provide power to the vehicle; Clutch shaft gear, connected to the engine, used to connect the engine to the transmission system of the vehicle; The differential gear, connected between the clutch gear and the second cooling circuit, is used to distribute power to the wheels of the vehicle.

3. The system according to claim 1, characterized in that, The second cooling circuit includes: The drive motor is connected to the control circuit and is used to provide driving force to the wheels of the vehicle. The first-stage reduction gear of the drive motor is connected to the drive motor and is used to decelerate the vehicle in order to obtain the initial torque of the vehicle. The secondary reduction gear of the drive motor is connected between the first cooling circuit and the primary reduction gear of the drive motor, and is used to adjust the initial torque.

4. The system according to claim 1, characterized in that, The control circuit includes: an oil pan, a suction filter, an electric oil pump, a cooler, a filter press, and an electromagnetic diverter valve. The oil pan stores the vehicle's coolant; the suction filter filters impurities from the coolant; the electric oil pump delivers the coolant; the cooler lowers the temperature of the coolant; the filter press filters the coolant after its temperature has been lowered; and the electromagnetic diverter valve connects the first cooling circuit and the second cooling circuit to control the cooling and lubrication flow rate to both circuits.

5. A cooling control method for dual motors, characterized in that, A cooling control system for dual motors, comprising a first cooling circuit, a second cooling circuit, and a control circuit, wherein the method includes: The first cooling circuit is used to provide cooling operation for the generator to obtain first initial flow demand information, and the second cooling circuit is used to provide cooling operation for the drive motor to obtain second initial flow demand information, wherein the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator, and the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor. The control loop is triggered to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, and outputs target flow demand information. The target flow demand information is used to characterize the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first cooling loop and the cooling and lubrication flow required by the second cooling loop.

6. The method according to claim 5, characterized in that, The control loop is triggered based on the first initial flow demand information and the second initial flow demand information to control the cooling and lubrication flow to the first cooling loop and the second cooling loop, and outputs target flow demand information, including: The control loop is triggered to obtain the preset flow rate requirement information of the cooling control system within the target time period; The first initial traffic demand information and the second initial traffic demand information are determined as initial traffic demand information, and the initial traffic demand information and the preset traffic demand information are subtracted to obtain an initial difference; The initial difference and the difference threshold are compared to obtain the comparison result; Based on the comparison results, the position of the electromagnetic diverter valve in the control loop is adjusted to obtain the target flow demand information.

7. The method according to claim 6, characterized in that, Based on the comparison results, the position of the electromagnetic diversion valve in the control loop is adjusted to obtain the target flow demand information, including: In response to the comparison result that the initial difference is greater than the difference threshold, the cooling and lubrication flow rate of the electric oil pump in the cooling control system is increased, and the position of the electromagnetic diverter valve is adjusted to obtain the target flow rate requirement information. In response to the comparison result that the initial difference is less than or equal to the difference threshold, the position of the electromagnetic diverter valve is adjusted, and the cooling and lubrication flow rate of the electric oil pump is reduced to obtain the target flow rate requirement information.

8. A cooling control device for dual motors, characterized in that, include: A determining unit is configured to provide cooling operation to a generator using a first cooling circuit to obtain first initial flow demand information, and to provide cooling operation to a drive motor using a second cooling circuit to obtain second initial flow demand information, wherein the first initial flow demand information is used to characterize the cooling and lubrication flow required by the generator, and the second initial flow demand information is used to characterize the cooling and lubrication flow required by the drive motor. The output unit is used to trigger the control loop to control the cooling and lubrication flow to the first cooling loop and the second cooling loop based on the first initial flow demand information and the second initial flow demand information, and output target flow demand information, wherein the target flow demand information is used to characterize the cooling and lubrication flow in the vehicle, satisfying the cooling and lubrication flow required by the first cooling loop and the cooling and lubrication flow required by the second cooling loop.

9. An electronic device, 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 5 to 7.

10. 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 5 to 7.

11. 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 5 to 7.

12. A vehicle, characterized in that, The vehicle is used to perform the method according to any one of claims 5 to 7.

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