Automotive cooling control methods, devices, equipment and storage media

Abstract

This invention discloses a method, apparatus, device, and storage medium for automotive cooling control, belonging to the field of automotive cooling control technology. The invention acquires the current temperature data of various components in the vehicle's drive system; compares the current temperature data with a preset temperature threshold to obtain a comparison result; and controls the cooling of the vehicle's drive system using a water pump and an electric fan based on the comparison result. By identifying and predicting the temperature trend of the drive system, temperature control becomes more precise and faster, preventing overheating faults in the drive system. Furthermore, precise control reduces energy loss due to cooling and improves cooling efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive cooling control technology, and in particular to an automotive cooling control method, apparatus, equipment, and storage medium. Background Technology

[0002] For some high-performance, high-power vehicles, as well as vehicles that frequently operate under high loads (such as towing, off-road driving, etc.) or pure electric vehicles, the drive system generates a lot of friction and heat under high load conditions. Therefore, a cooling system is needed to ensure that the temperature of each critical component is within a safe range.

[0003] Existing drive system cooling control strategies have a certain lag in controlling the temperature of the drive system and low cooling efficiency, which increases the energy consumption of the whole vehicle. Summary of the Invention

[0004] The main objective of this invention is to provide an automotive cooling control method, apparatus, device, and storage medium, aiming to solve the technical problem of low efficiency in automotive cooling control in the prior art.

[0005] To achieve the above objectives, the present invention provides an automotive cooling control method, the method comprising the following steps:

[0006] Obtain the current temperature data of each component in the vehicle's drive system;

[0007] The current temperature data is compared with a preset temperature threshold to obtain the comparison result;

[0008] Based on the comparison results, the cooling of the vehicle's drive system is controlled by a water pump and an electric fan.

[0009] Optionally, the preset temperature threshold includes a first preset temperature threshold;

[0010] The cooling control of the vehicle's drive system using a water pump and an electric fan based on the comparison results includes:

[0011] When the comparison result indicates that the current temperature data is greater than or equal to the first preset temperature threshold, the water pump and electric fan are controlled to run at full speed to cool the vehicle's drive system.

[0012] Optionally, the preset temperature threshold includes a second preset temperature threshold, and the first preset temperature threshold is greater than the second preset temperature threshold;

[0013] The cooling control of the vehicle's drive system using a water pump and an electric fan based on the comparison results includes:

[0014] When the comparison result indicates that the current temperature data is less than the first preset temperature threshold, the current temperature data is compared with the second preset temperature threshold.

[0015] When the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the vehicle's drive system is cooled by a water pump and an electric fan.

[0016] Optionally, the step of controlling the cooling of the vehicle's drive system via a water pump and an electric fan when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold includes:

[0017] When the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the temperature slope of each device within a preset time period is obtained.

[0018] Based on the temperature slope, the water pump and electric fan are controlled by duty cycle to cool the vehicle's drive system.

[0019] Optionally, the step of controlling the cooling of the vehicle's drive system by controlling the water pump and electric fan via duty cycle based on the temperature slope includes:

[0020] The temperature slope is compared with a preset temperature slope threshold.

[0021] When the temperature slope is greater than or equal to the preset temperature slope threshold, a duty cycle value is set;

[0022] The duty cycle is used to control the operation of the water pump and electric fan to cool the vehicle's drive system.

[0023] Optionally, setting the duty cycle value when the temperature slope is greater than or equal to the preset temperature slope threshold includes:

[0024] Obtain the operating efficiency of the motor and the microcontroller unit in the vehicle's drive system;

[0025] The motor temperature slope and the microcontroller temperature slope are obtained from the aforementioned temperature slope.

[0026] The water pump duty cycle and the electric fan duty cycle are set by the motor operating efficiency, the microcontroller operating efficiency, the motor temperature slope, and the microcontroller temperature slope.

[0027] Optionally, after comparing the current temperature data with a preset temperature threshold to obtain the comparison result, the method further includes:

[0028] When the comparison result indicates that the current temperature data is less than the preset temperature threshold, the process returns to the step of obtaining the current temperature data of each component in the vehicle's drive system.

[0029] Furthermore, to achieve the above objectives, the present invention also proposes an automotive cooling control device, the automotive cooling control device comprising:

[0030] The acquisition module is used to acquire the current temperature data of various components in the vehicle's drive system;

[0031] The comparison module is used to compare the current temperature data with a preset temperature threshold to obtain a comparison result;

[0032] The control module is used to control the cooling of the vehicle's drive system via a water pump and an electric fan based on the comparison results.

[0033] Furthermore, to achieve the above objectives, the present invention also proposes an automotive cooling control device, the automotive cooling control device comprising: a memory, a processor, and an automotive cooling control program stored in the memory and executable on the processor, the automotive cooling control program being configured to implement the steps of the automotive cooling control method as described above.

[0034] In addition, to achieve the above objectives, the present invention also proposes a storage medium storing an automotive cooling control program, which, when executed by a processor, implements the steps of the automotive cooling control method as described above.

[0035] This invention acquires the current temperature data of each component in a vehicle's drive system; compares the current temperature data with a preset temperature threshold to obtain a comparison result; and controls the cooling of the vehicle's drive system using a water pump and an electric fan based on the comparison result. By identifying and predicting the temperature trend of the drive system, the temperature control becomes more precise and faster, preventing overheating faults in the drive system. Furthermore, precise control can reduce energy loss caused by cooling and improve cooling efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of an automotive cooling control device in the hardware operating environment involved in the embodiments of the present invention;

[0037] Figure 2 This is a flowchart illustrating the first embodiment of the automobile cooling control method of the present invention;

[0038] Figure 3 This is a schematic diagram of the overall process of an embodiment of the automobile cooling control method of the present invention;

[0039] Figure 4This is a flowchart illustrating the second embodiment of the automobile cooling control method of the present invention;

[0040] Figure 5 This is a flowchart illustrating the third embodiment of the automobile cooling control method of the present invention;

[0041] Figure 6 This is a schematic diagram of the control strategy for the electronic fan and water pump in an embodiment of the automobile cooling control method of the present invention;

[0042] Figure 7 This is a structural block diagram of the first embodiment of the automotive cooling control device of the present invention.

[0043] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0045] Reference Figure 1 , Figure 1 This is a schematic diagram of the structure of an automotive cooling control device in the hardware operating environment of an embodiment of the present invention.

[0046] like Figure 1 As shown, the automotive cooling control device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk storage device. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0047] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on automotive cooling control equipment and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0048] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and an automotive cooling control program.

[0049] exist Figure 1 In the illustrated automotive cooling control device, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the automotive cooling control device of the present invention can be set in the automotive cooling control device, and the automotive cooling control device calls the automotive cooling control program stored in the memory 1005 through the processor 1001 and executes the automotive cooling control method provided in the embodiment of the present invention.

[0050] This invention provides an automotive cooling control method, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the automotive cooling control method of the present invention.

[0051] In this embodiment, the vehicle cooling control method includes the following steps:

[0052] Step S10: Obtain the current temperature data of each component in the vehicle's drive system.

[0053] It should be noted that the executing entity in this embodiment can be an automotive cooling control device, or other devices that can achieve the same or similar functions. This embodiment does not limit this; it uses an automotive cooling control device as an example for illustration. The automotive cooling control device is used to control the cooling of the vehicle's drive system.

[0054] In practical implementation, prior preparation is required before implementing vehicle cooling control. This includes hardware preparation and related connection preparation. Hardware equipment includes a computer with Matlab Simulink software installed, a CANape device, a working calibration prototype vehicle, and the corresponding software. Connection preparation involves: opening Simulink, modifying the vehicle controller software according to the control strategy, integrating it into the vehicle, and connecting the CANape device to monitor and adjust vehicle parameters.

[0055] It should be noted that temperature sensors can be installed on the vehicle to obtain the current temperature data of various components in the car's drive system. The drive system consists of a drive motor, a drive motor controller (MCU), an inverter, and an IGBT (Insulated Gate Bipolar Transistor), and is a system for controlling the torque output of the entire vehicle.

[0056] The existing drive system cooling control strategy controls the water pump and electric fan to cool the drive system based on the different temperature thresholds of the MCU, IGBT, and inverter. However, the temperature control has a certain lag. Under complex operating conditions such as repeated rapid acceleration and deceleration and frequent changes in the motor operating point, it is easy to cause the drive motor and battery to overheat, reduce the life of the motor and battery pack, and the cooling efficiency is low, which increases the energy consumption of the whole vehicle.

[0057] In practice, the current temperature data includes the current temperature of the drive motor, the current temperature of the MCU, the current temperature of the inverter, and the current temperature of the IGBT.

[0058] Step S20: Compare the current temperature data with the preset temperature threshold to obtain the comparison result.

[0059] It is understandable that the preset temperature threshold may include a temperature threshold at which the drive system can be cooled and a temperature threshold at which the drive system is at risk of overheating. Therefore, the current temperature data can be compared with different temperature thresholds to obtain the corresponding comparison results.

[0060] It should be understood that the comparison result may be that the temperature of some devices in the current temperature data is less than the preset temperature threshold, or the temperature of all devices is less than the preset temperature threshold, or the temperature of some devices is greater than or equal to the preset temperature threshold, or the temperature of all devices is greater than or equal to the preset temperature threshold.

[0061] Optionally, after comparing the current temperature data with a preset temperature threshold and obtaining a comparison result, the method further includes: when the comparison result indicates that the current temperature data is less than the preset temperature threshold, returning to the step of obtaining the current temperature data of each component in the vehicle's drive system.

[0062] It should be noted that when the comparison result shows that the current temperature data is less than the preset temperature threshold, that is, the temperature of each device in the current temperature data is less than the preset temperature threshold, which is less than the temperature threshold that needs to be cooled, then there is no need to cool the vehicle's drive system, and the process returns to the step of obtaining the current temperature data of each device in the vehicle's drive system, so as to detect and monitor the temperature of each device in real time.

[0063] Step S30: Based on the comparison results, the driving system of the vehicle is cooled by a water pump and an electric fan.

[0064] In practice, the cooling control of the vehicle's drive system can be achieved by using a water pump and an electric fan based on the comparison results. By controlling the operation of the water pump and the electric fan, the temperature rise of the vehicle's drive system can be suppressed, thus realizing the cooling control of the vehicle's drive system.

[0065] Drive system cooling involves the coordinated operation of two key components: the water pump and the electric fan. Together, they ensure that coolant (typically a mixture of water and antifreeze) flows through critical components such as the engine, transmission, and differential, absorbing and carrying away generated heat to maintain these components within the appropriate temperature range. The following explains how the water pump and electric fan work:

[0066] The working principle of a water pump can be mechanically driven: Water pumps are typically driven by a belt or chain system in the engine. As the engine runs, the impeller of the water pump rotates. Coolant is drawn in and expelled: Through the rotating impeller, the water pump creates a low-pressure area in the engine, drawing coolant from the cooling system. Subsequently, driven by the water pump, the coolant is forced around the engine and other drive system components, absorbing heat. Circulation system: The water pump pushes the coolant to form a circulation system, passing through the engine and other heat source areas, and then flowing back to the radiator so that the radiator can dissipate the heat from the coolant through the air.

[0067] The electric fan works by using a temperature sensor to monitor the engine temperature and the temperature of other critical components. The Electronic Control Unit (ECU) triggers the electric fan to start. Driven by a motor, the fan begins to generate airflow. The ECU can adjust the electric fan's operating speed as needed to ensure sufficient cooling. Once the temperature drops to a safe level, the ECU can stop the electric fan, reducing energy consumption and noise.

[0068] like Figure 3 As shown, Figure 3 This is a schematic diagram of the overall process in this embodiment. Temperature data from various components in the drive system is acquired, and the temperature data is compared with a threshold value α. max Comparison, threshold a max To drive the system's over-temperature risk temperature threshold, when all temperature data are greater than or equal to threshold a... max At this time, the water pump and electric fan are controlled to run at full speed to prevent overheating, serving as the last line of defense for the drive system's temperature control. If the temperature data is less than threshold a... max The temperature data is compared with a threshold a1, which is the temperature threshold at which the drive system needs to be cooled. It is determined whether the temperature data is greater than or equal to the threshold a1. If so, the temperature slope of each device at time t is obtained and compared with a preset temperature slope threshold f1. If the temperature slope is greater than or equal to the preset temperature slope threshold f1, the water pump and electric fan can be controlled via PWM to suppress the temperature rise. If the temperature data is less than the threshold a1, the process returns to the step of obtaining temperature data and continues temperature monitoring. During drive system cooling, updated temperature data is continuously obtained. If the updated temperature data is less than the threshold a1, the operation of the water pump and electric fan is stopped.

[0069] This embodiment acquires the current temperature data of each component in the vehicle's drive system; compares the current temperature data with a preset temperature threshold to obtain a comparison result; and controls the cooling of the vehicle's drive system through a water pump and an electric fan based on the comparison result. By identifying and predicting the temperature trend of the drive system, the temperature control becomes more precise and faster, avoiding overheating faults in the drive system. Furthermore, precise control can reduce energy loss caused by cooling and improve cooling efficiency.

[0070] refer to Figure 4 , Figure 4 This is a flowchart illustrating the second embodiment of the automobile cooling control method of the present invention.

[0071] Based on the first embodiment described above, the preset temperature threshold in this embodiment includes a first preset temperature threshold.

[0072] Step S30 of the automobile cooling control method includes:

[0073] Step S301: When the comparison result is that the current temperature data is greater than or equal to the first preset temperature threshold, control the water pump and electric fan to run at full speed to cool the vehicle's drive system.

[0074] It should be noted that the first preset temperature threshold is the over-temperature risk threshold of the drive system. The current temperature data is compared with the first preset temperature threshold to determine whether the current temperature data is greater than the first preset temperature threshold.

[0075] In specific implementation, when the comparison result shows that the current temperature data is greater than or equal to the first preset temperature threshold, it proves that the temperature of at least one device in the current temperature data is greater than or equal to the first preset temperature threshold.

[0076] It should be noted that, in order to prevent overheating, the water pump and electric fan are controlled to run at full speed, which can quickly cool the drive system and achieve the purpose of cooling.

[0077] In this embodiment, when the comparison result shows that the current temperature data is greater than or equal to the first preset temperature threshold, the water pump and electric fan are controlled to run at full speed to cool the vehicle's drive system. The current temperature of the drive system can be quickly determined based on the first preset temperature threshold, thereby quickly cooling the drive system and improving the cooling effect.

[0078] refer to Figure 5 , Figure 5 This is a flowchart illustrating the third embodiment of the automobile cooling control method of the present invention.

[0079] Based on the first embodiment described above, the preset temperature threshold in this embodiment includes a second preset temperature threshold, and the first preset temperature threshold is greater than the second preset temperature threshold.

[0080] Step S30 of the automobile cooling control method includes:

[0081] Step S301': When the comparison result shows that the current temperature data is less than the first preset temperature threshold, the current temperature data is compared with the second preset temperature threshold.

[0082] It should be noted that, in order to improve the control effect, a second preset temperature threshold is also set. The second preset temperature threshold is lower than the first preset temperature threshold. The second preset temperature threshold is the temperature threshold at which the drive system needs to be cooled.

[0083] Understandably, if the current temperature data is less than the first preset temperature threshold, the current temperature data can be compared with the second preset temperature threshold to determine whether the current temperature data is greater than the second preset temperature threshold.

[0084] Step S302': When the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the driving system of the car is cooled by a water pump and an electric fan.

[0085] Understandably, when the comparison result shows that the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, it means that the car's drive system needs to be cooled down, but the temperature has not exceeded the overheating risk value. Therefore, the car's drive system can be cooled and controlled by water pumps and electric fans.

[0086] Optionally, when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the step of cooling the vehicle's drive system using a water pump and an electric fan specifically includes: when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, obtaining the temperature slope of each device within a preset time period; and controlling the water pump and electric fan to cool the vehicle's drive system based on the temperature slope using a duty cycle.

[0087] It should be understood that when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the operation of the water pump and the electric fan can be controlled according to the slope of the temperature rise of each component in the drive system within a preset time period, thus obtaining the temperature slope of each component within the preset time period.

[0088] The preset time period can be set according to requirements, such as 10s, 20s, etc., and this embodiment does not impose any limitation. The temperature slope refers to the rate of change of time relative to temperature under temperature changes. Therefore, the water pump and electric fan are controlled by the duty cycle based on the temperature slope.

[0089] Optionally, the step of controlling the cooling of the vehicle's drive system by controlling the water pump and electric fan with a duty cycle based on the temperature slope includes: comparing the temperature slope with a preset temperature slope threshold; setting a duty cycle value when the temperature slope is greater than or equal to the preset temperature slope threshold; and controlling the water pump and electric fan to work through the duty cycle value to cool the vehicle's drive system.

[0090] It should be noted that the temperature slope can be compared with the preset temperature slope threshold. The preset temperature slope threshold f1 can be set according to the requirements. If the temperature slope is less than the preset temperature slope threshold, the duty cycle value can be set, thereby controlling the water pump and electric fan to work and cool the car's drive system.

[0091] Furthermore, the process of setting the duty cycle includes: obtaining the motor operating efficiency and microcontroller operating efficiency in the vehicle's drive system; obtaining the motor temperature slope and microcontroller temperature slope through the temperature slope; and setting the water pump duty cycle and electric fan duty cycle through the motor operating efficiency, the microcontroller operating efficiency, the motor temperature slope, and the microcontroller temperature slope.

[0092] It is understandable that the temperature slope of the motor and the temperature slope of the microcontroller unit (MCU) can be obtained through the temperature slope, and the operating efficiency of the motor and the operating efficiency of the microcontroller unit of the vehicle drive system can be obtained. When the efficiency of the drive system is low, it means that the heat generated by the drive system is large, so a larger PWM value needs to be set to control the water pump and electric fan to run at high speed.

[0093] When the drive system is inefficient, it means that the heat generated by the drive system is not large. In this case, a smaller PWM value can be set to control the water pump and electric fan to run at low speed.

[0094] Therefore, the duty cycle values ​​of the water pump and the electric fan can be set by the motor operating efficiency, the microcontroller operating efficiency, the motor temperature slope, and the microcontroller slope, thereby controlling the water pump and the electric fan.

[0095] like Figure 6 As shown, Figure 6 This diagram illustrates the control strategy for an electric fan and a water pump. It can obtain the temperature slope at time t, as well as the motor efficiency and MCU efficiency. By setting the PWM values ​​of the electric fan and water pump based on the temperature slope, motor efficiency, and MCU efficiency, the water pump and electric fan can be controlled.

[0096] In this embodiment, when the comparison result shows that the current temperature data is less than the first preset temperature threshold, the current temperature data is compared with the second preset temperature threshold; when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the vehicle's drive system is cooled by a water pump and an electric fan, and the temperature trend of the drive system is identified and predicted, thereby making the temperature control more accurate and faster.

[0097] Reference Figure 7 , Figure 7 This is a structural block diagram of the first embodiment of the automotive cooling control device of the present invention.

[0098] like Figure 7 As shown, the automotive cooling control device proposed in this embodiment of the invention includes:

[0099] The acquisition module 10 is used to acquire the current temperature data of each component in the vehicle's drive system.

[0100] The comparison module 20 is used to compare the current temperature data with a preset temperature threshold to obtain a comparison result.

[0101] The control module 30 is used to control the cooling of the vehicle's drive system via a water pump and an electric fan based on the comparison results.

[0102] This embodiment acquires the current temperature data of each component in the vehicle's drive system; compares the current temperature data with a preset temperature threshold to obtain a comparison result; and controls the cooling of the vehicle's drive system through a water pump and an electric fan based on the comparison result. By identifying and predicting the temperature trend of the drive system, the temperature control becomes more precise and faster, avoiding overheating faults in the drive system. Furthermore, precise control can reduce energy loss caused by cooling and improve cooling efficiency.

[0103] In one embodiment, the preset temperature threshold includes a first preset temperature threshold; the control module 30 is further configured to control the water pump and electric fan to run at full speed to cool the vehicle's drive system when the comparison result is that the current temperature data is greater than or equal to the first preset temperature threshold.

[0104] In one embodiment, the preset temperature threshold includes a second preset temperature threshold, and the first preset temperature threshold is greater than the second preset temperature threshold; the control module 30 is further configured to compare the current temperature data with the second preset temperature threshold when the comparison result is that the current temperature data is less than the first preset temperature threshold; and to perform cooling control on the vehicle's drive system by means of a water pump and an electric fan when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold.

[0105] In one embodiment, the control module 30 is further configured to, when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, obtain the temperature slope of each device within a preset time period; and control the water pump and electric fan to cool the vehicle's drive system by controlling the duty cycle based on the temperature slope.

[0106] In one embodiment, the control module 30 is further configured to compare the temperature slope with a preset temperature slope threshold; when the temperature slope is greater than or equal to the preset temperature slope threshold, set a duty cycle value; and control the water pump and electric fan to work through the duty cycle value to cool the vehicle's drive system.

[0107] In one embodiment, the control module 30 is further configured to acquire the motor operating efficiency and microcontroller operating efficiency in the vehicle's drive system; obtain the motor temperature slope and microcontroller temperature slope through the temperature slope; and set the water pump duty cycle and electric fan duty cycle values ​​through the motor operating efficiency, the microcontroller operating efficiency, the motor temperature slope, and the microcontroller temperature slope.

[0108] In one embodiment, the comparison module 20 is further configured to return to the step of obtaining the current temperature data of each component in the vehicle's drive system when the comparison result indicates that the current temperature data is less than the preset temperature threshold.

[0109] Furthermore, embodiments of the present invention also propose a storage medium storing an automotive cooling control program, which, when executed by a processor, implements the steps of the automotive cooling control method described above.

[0110] Since this storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0111] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0112] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0113] In addition, for technical details not described in detail in this embodiment, please refer to the automobile cooling control method provided in any embodiment of the present invention, which will not be repeated here.

[0114] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0115] 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.

[0116] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0117] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for controlling automotive cooling, characterized in that, The vehicle cooling control method includes: Obtain the current temperature data of each component in the vehicle's drive system; The current temperature data is compared with a preset temperature threshold to obtain the comparison result; Based on the comparison results, the cooling of the vehicle's drive system is controlled by a water pump and an electric fan. The preset temperature threshold includes a second preset temperature threshold, and the first preset temperature threshold is greater than the second preset temperature threshold. The cooling control of the vehicle's drive system using a water pump and an electric fan based on the comparison results includes: When the comparison result indicates that the current temperature data is less than the first preset temperature threshold, the current temperature data is compared with the second preset temperature threshold. When the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the vehicle's drive system is cooled by a water pump and an electric fan. When the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the cooling control of the vehicle's drive system via a water pump and an electric fan includes: When the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, the temperature slope of each device within a preset time period is obtained. Based on the temperature slope, the water pump and electric fan are controlled by the duty cycle to cool the vehicle's drive system. The method of controlling the cooling of the vehicle's drive system by controlling the water pump and electric fan via duty cycle based on the temperature slope includes: The temperature slope is compared with a preset temperature slope threshold. When the temperature slope is greater than or equal to the preset temperature slope threshold, a duty cycle value is set; The water pump and electric fan are controlled by the duty cycle value to cool the vehicle's drive system. The step of setting a duty cycle value when the temperature slope is greater than or equal to the preset temperature slope threshold includes: Obtain the operating efficiency of the motor and the microcontroller unit in the vehicle's drive system; The motor temperature slope and the microcontroller temperature slope are obtained from the aforementioned temperature slope. The water pump duty cycle and the electric fan duty cycle are set by the motor operating efficiency, the microcontroller operating efficiency, the motor temperature slope, and the microcontroller temperature slope.

2. The automobile cooling control method as described in claim 1, characterized in that, The preset temperature threshold includes a first preset temperature threshold; The cooling control of the vehicle's drive system using a water pump and an electric fan based on the comparison results includes: When the comparison result indicates that the current temperature data is greater than or equal to the first preset temperature threshold, the water pump and electric fan are controlled to run at full speed to cool the vehicle's drive system.

3. The automobile cooling control method as described in claim 1 or 2, characterized in that, After comparing the current temperature data with a preset temperature threshold to obtain the comparison result, the method further includes: When the comparison result indicates that the current temperature data is less than the preset temperature threshold, the process returns to the step of obtaining the current temperature data of each component in the vehicle's drive system.

4. A vehicle cooling control device, characterized in that, The vehicle cooling control device includes: The acquisition module is used to acquire the current temperature data of various components in the vehicle's drive system; The comparison module is used to compare the current temperature data with a preset temperature threshold to obtain a comparison result; A control module is used to control the cooling of the vehicle's drive system via a water pump and an electric fan based on the comparison results. The control module is further configured to compare the current temperature data with a second preset temperature threshold when the comparison result is that the current temperature data is less than a first preset temperature threshold; and to perform cooling control on the vehicle's drive system by means of a water pump and an electric fan when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold. The control module is further configured to, when the current temperature data is greater than or equal to the second preset temperature threshold and less than the first preset temperature threshold, obtain the temperature slope of each device within a preset time period; and control the water pump and electric fan to cool the vehicle's drive system by controlling the duty cycle based on the temperature slope. The control module is also used to compare the temperature slope with a preset temperature slope threshold; when the temperature slope is greater than or equal to the preset temperature slope threshold, set a duty cycle value; and control the water pump and electric fan to work through the duty cycle value to cool the vehicle's drive system. The control module is also used to obtain the operating efficiency of the motor and the operating efficiency of the microcontroller unit in the vehicle's drive system; to obtain the motor temperature slope and the microcontroller unit temperature slope through the temperature slope; and to set the water pump duty cycle and the electric fan duty cycle through the motor operating efficiency, the microcontroller unit operating efficiency, the motor temperature slope, and the microcontroller unit temperature slope.

5. An automotive cooling control device, characterized in that, The vehicle cooling control device includes: a memory, a processor, and a vehicle cooling control program stored in the memory and executable on the processor, the vehicle cooling control program being configured to implement the vehicle cooling control method as described in any one of claims 1 to 3.

6. A storage medium, characterized in that, The storage medium stores an automotive cooling control program, which, when executed by a processor, implements the automotive cooling control method as described in any one of claims 1 to 3.

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