A temperature control method and system for a vehicle motor system and a vehicle

Abstract

This invention relates to a temperature control method, system, and vehicle for a vehicle motor system. The temperature control method includes acquiring the rotational speed and torque of the vehicle motor system to obtain its heat generation power; acquiring the heat dissipation power when neither the water pump nor the fan is operating; integrating the difference between the heat generation power and the heat dissipation power under these conditions to obtain excess heat; if the excess heat exceeds a heat threshold, then using the heat dissipation power and power consumption when the water pump and fan are operating, and the heat dissipation power and power consumption when both the water pump and fan are operating, and under the condition that the heat dissipation energy equals the excess heat and the total power consumption is minimized under these two conditions, the corresponding operating time for these two conditions is obtained, thereby controlling the water pump and fan based on the obtained operating time. The temperature control method of this invention solves the problem in the prior art where the inaccurate reflection of the motor system's heat generation leads to reduced vehicle driving safety and high energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of new energy vehicles and engineering machinery technology, specifically relating to a temperature control method, system and vehicle for a vehicle motor system. Background Technology

[0002] With the increasing popularity of new energy vehicles, their driving safety and energy consumption have become increasingly important concerns, particularly the temperature control strategy for the vehicle's motor system. Existing motor systems typically utilize a cooling system, including a water pump and a fan, for temperature control. This system is generally calibrated based on motor system temperature rise tests to determine the on / off conditions of the cooling pump and the cooling fan. However, this calibration process must meet various operating conditions, resulting in significant design redundancy, considerable energy waste, and a lack of energy efficiency.

[0003] Chinese patent application CN113022296A discloses a cooling control method for an electric drive system. Based on the current drive power demand and historical data of the drive power for the next time period, a target value for the operating parameters of the cooling system is determined for the current time period. During the current time period, the operating parameters of the cooling system are controlled to operate according to the target value to cool the electric drive system. Compared to general cooling control methods, this strategy considers the actual operating conditions of the vehicle and can effectively reduce design redundancy. However, this method uses a comparison between the drive power for the next time period and the current drive power to determine the target value of the cooling system operating parameters for the current time period. Since the efficiency (heat generation) varies significantly at different speed-torque operating points under the same drive power, especially in the low-power region, the drive power cannot accurately reflect the actual heat dissipation demand (i.e., heat generation). Therefore, there will still be situations where the actual cooling parameters cannot meet the actual heat dissipation needs, leading to a reduction in vehicle driving safety.

[0004] In summary, existing temperature control strategies for vehicle motor systems cannot accurately reflect the heating status of the motor system, resulting in reduced vehicle driving safety and higher energy consumption. Summary of the Invention

[0005] This invention provides a method, system, and vehicle for temperature control of a vehicle motor system, in order to solve the problems of reduced vehicle driving safety and high energy consumption caused by the inability of the prior art to accurately reflect the heating status of the motor system.

[0006] To solve the above-mentioned technical problems, the present invention provides a temperature control method for a vehicle motor system, comprising:

[0007] 1) Obtain the speed and torque of the vehicle's motor system, and thus obtain the heat output of the motor system;

[0008] 2) Obtain the heat dissipation power when the water pump and fan are not working. Integrate the difference between the heat dissipation power of the motor system and the heat dissipation power under this condition within a set time period to obtain the excess heat.

[0009] 3) If the excess heat is greater than the heat threshold, the heat dissipation power and power consumption when the water pump is working and the fan is not working, and the heat dissipation power and power consumption when both the water pump and the fan are working, are used to obtain the working time corresponding to the two conditions, provided that the heat dissipation energy in these two conditions is equal to the excess heat and the total power consumption in these two conditions is minimized. Based on the obtained working time, the water pump and fan are controlled.

[0010] The beneficial effects of the above technical solution are as follows: by using the obtained speed and torque to obtain the corresponding heat generation power of the motor system, the heat generation power can more realistically reflect the heat generation of the motor system compared with the drive power in the prior art, so that the temperature control of the motor system can be more precise in the future. In addition, if the excess heat obtained based on the heat generation power is greater than the heat threshold, the total power consumption is minimized under the condition of satisfying the excess heat to obtain the working time of the water pump and fan under different working conditions, thereby achieving temperature control. This minimizes the energy consumption during temperature control and avoids the problems of reduced vehicle driving safety and high energy consumption caused by the inaccurate reflection of the heat generation of the motor system in the prior art.

[0011] Furthermore, in order to better reduce energy consumption, the present invention provides a temperature control method for a vehicle motor system, which further includes step 3) in which if the excess heat is not greater than the heat threshold, the water pump and fan do not work and natural heat dissipation is performed.

[0012] Furthermore, to better reduce energy consumption, this invention provides a temperature control method for a vehicle motor system, which further includes ensuring that the heat dissipation energy in two cases in step 3) meets the following requirements:

[0013]

[0014] The total power consumption under these two scenarios is:

[0015]

[0016] in, Indicates excess calories. P1 represents the total power consumption, P2 represents the heat dissipation power when the water pump is working and the fan is not working, t1 is the operating time when the water pump is working and the fan is not working, and P... a P3 represents the power consumption when the water pump is working and the fan is not working; P2 represents the heat dissipation power when the water pump is working and the fan is working; and t2 represents the operating time when the water pump is working and the fan is working. bThis indicates the power consumption when the water pump and fan are operating.

[0017] Furthermore, in order to obtain the heat generation power more accurately, the present invention provides a temperature control method for a vehicle motor system, which further includes obtaining the corresponding heat generation power of the motor system using a system efficiency MAP table for the obtained speed and torque in step 1).

[0018] Furthermore, in order to better reduce energy consumption, the present invention provides a temperature control method for a vehicle motor system, which also includes the fan having at least two working speeds as described in step 3), and the heat dissipation power and power consumption having at least two values ​​when both the water pump and the fan are working, and determining the working time of each working speed to minimize the total power consumption under the condition of satisfying excess heat.

[0019] Furthermore, in order to better reduce energy consumption, the present invention provides a temperature control method for a vehicle motor system, which also includes the heat threshold being calculated based on a temperature rise limit.

[0020] The present invention also provides a temperature control system for a vehicle motor system, comprising: a memory and a processor, wherein the processor is configured to execute instructions stored in the memory to implement the above-described temperature control method for the vehicle motor system.

[0021] The present invention also provides a vehicle, including a motor system, the vehicle further including a monitoring host and an OTA terminal device, the monitoring host being used to acquire the speed and torque of the motor system, and the OTA terminal device being used to implement the above-mentioned temperature control method for the vehicle motor system based on the acquired speed and torque of the motor system.

[0022] Furthermore, the present invention provides a vehicle, which also includes the monitoring host interacting with the monitoring platform. Attached Figure Description

[0023] Figure 1 This is a flowchart of the temperature control method for the vehicle motor system of the present invention;

[0024] Figure 2 This is a schematic diagram of the remote upgrade architecture of the vehicle and monitoring platform of the present invention. Detailed Implementation

[0025] The basic concept of this invention is as follows: This invention utilizes the obtained rotational speed and torque to obtain the corresponding heating power of the motor system. If the excess heat obtained based on the heating power is greater than the heat threshold, under the condition of satisfying the excess heat, the total power consumption is minimized to obtain the working time of the water pump and fan under different working conditions, thereby achieving temperature control. In this case, compared with the drive power in the prior art, the heating power can more realistically reflect the heating situation of the motor system, enabling more precise temperature control of the motor system and minimizing energy consumption during temperature control, thus improving vehicle driving safety.

[0026] To make the objectives, technical solutions, and technical effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Example of a temperature control method for a vehicle motor system:

[0028] Considering vehicles operating on fixed routes and in fixed scenarios (such as autonomous sightseeing vehicles, micro-circulation vehicles, logistics vehicles, sanitation vehicles, and mining trucks), the duration of operation on these relatively fixed routes gradually tends to a stable value, and the operating conditions at different times during operation also become relatively fixed. Therefore, big data consisting of the operating conditions of vehicles at different times during their operation on these fixed routes can be used to obtain a temperature control method for the vehicle's motor system. This allows for minimizing over-design and energy consumption, and improving driving safety, without affecting the normal operation of the motor system.

[0029] Figure 1 This is a flowchart of the temperature control method for the vehicle motor system of the present invention. The specific process is as follows:

[0030] Step 1: Obtain the speed and torque of the vehicle's motor system, and thus obtain the heat output of the motor system.

[0031] Specifically, in step one, after the vehicle has been running on a fixed route for a period of time, the onboard intelligent terminal equipment, in conjunction with the vehicle operation monitoring platform, acquires the vehicle's operating data for various time periods during its operation on that fixed route. This operating data includes, but is not limited to, time, speed, and torque. Through operating condition self-learning technology, complete operating condition data for that fixed route is generated. Combined with the system efficiency MAP table (i.e., a summary table of motor and controller efficiency under different speed and torque combinations) generated during the motor system bench calibration process for each fixed route, the heat generation power diagram of the motor system under historical operating conditions for the corresponding route is obtained by referring to the corresponding system efficiency MAP table based on the acquired operating condition data. Wherein, heat generation power = (1 - efficiency percentage). Total power. Each time period can be a complete operating cycle, or a fixed number of seconds, minutes, hours, days, etc. Additionally, the time spent stopping on the line (e.g., waiting at traffic lights or picking up / dropping off passengers) is also included in the operating data; the corresponding rotational speed and heat generation power are 0 during these time periods.

[0032] In step one, the vehicle's speed and torque are acquired in real time, and the corresponding motor system's heat output is obtained using the system efficiency MAP table under the corresponding operating conditions.

[0033] Step 2: Determine the heat dissipation power and power consumption of the water pump and fan in the cooling system under different operating mode combinations.

[0034] In step two, the cooling system includes a water pump and a fan. There are three combinations of water pump and fan operating modes: neither water pump nor fan is working; the water pump is working and the fan is not working; and both water pump and fan are working. When neither water pump nor fan is working, the heat dissipation power is represented by P1, and the power consumption is 0. When the water pump is working and the fan is not working, the heat dissipation power is represented by P2, and the power consumption is represented by P... a The power consumption of the water pump and fan is represented by P3 for heat dissipation and P for electrical power. b express.

[0035] Step 3: Based on the heat dissipation power when the heat generation power and the water pump and fan are not working, obtain the excess heat and determine whether the excess heat exceeds the heat threshold.

[0036] Specifically, in step three, within a set time period, the difference between the heat generation power of the motor system and the heat dissipation power P1 when neither the water pump nor the fan is working is calculated, and the difference is integrated to obtain the excess heat. The set time period can be, but is not limited to, 1 minute, 30 seconds, or 10 seconds.

[0037] In step three, the heat threshold is calculated based on the temperature rise limit. The heat threshold is, for example, the thermal energy corresponding to the temperature rise limit of the component, and the temperature rise limit can be set by the user.

[0038] Step 4: If the excess heat exceeds the heat threshold, the water pump and fan operating mode and corresponding time are determined to achieve temperature control, with the goal of minimizing the total energy consumption of the cooling system in the entire cycle (i.e., the cycle route).

[0039] Specifically, in step four, if the excess heat exceeds the heat threshold within a set time period, the excess heat needs to be dissipated by a water pump or a fan. At this time, the heat dissipation power and power consumption when the water pump is working and the fan is not working, and the heat dissipation power and power consumption when both the water pump and the fan are working, are used to obtain the working time corresponding to the two situations, provided that the heat dissipation energy in these two situations is equal to the excess heat and the total power consumption in these two situations is minimized. Based on the obtained working time, the corresponding temperature control is performed.

[0040] In step four, the heat dissipation energy in both cases must meet the following requirements:

[0041]

[0042] The total power consumption of the cooling system under these two conditions is:

[0043]

[0044] In the formula Indicates excess calories. This represents the total power consumption. t1 is the operating time when the water pump is working and the fan is not, and t2 is the operating time when both the water pump and fan are working. This ensures the total power consumption is maintained. In the minimum case, t1 and t2 are solved by combining the above two equations. Then, the cooling system is controlled to operate with both the water pump and fan running during the corresponding set time period. For example, during the first t1 time period, the water pump runs while the fan does not run during the time period from t1 to t1+t2. The water pump and fan do not run during the rest of the set time period.

[0045] Step 5: If the excess heat does not exceed the heat threshold, the water pump and fan will not work.

[0046] Specifically, in step five, if the excess heat within the set time period does not exceed the heat threshold, the water pump and fan will not work, and the cooling system will enter a state of zero water pump flow and zero fan speed, relying solely on natural cooling for heat dissipation.

[0047] The temperature control method for the vehicle motor system based on this embodiment: Combining the system efficiency MAP table, the heat generation power of the motor system under the corresponding operating conditions is obtained using the acquired speed and torque. In this case, compared with the drive power in the prior art, the heat generation power can more realistically reflect the heat generation of the motor system, enabling more precise temperature control of the motor system. In addition, if the excess heat obtained based on the heat generation power is greater than the heat threshold, the total power consumption is minimized under the condition of satisfying the excess heat to obtain the working time of the water pump and fan under different operating conditions, thereby achieving temperature control. Thus, the over-design of the cooling system can be minimized without affecting the normal operation of the motor system, improving vehicle economy and minimizing energy consumption during temperature control. This avoids the problems of reduced vehicle driving safety and high energy consumption caused by the inaccurate reflection of the heat generation of the motor system in the prior art.

[0048] In this embodiment, the fan has one operating speed. In other embodiments, based on different fan speeds (i.e., duty cycles), the fan has at least two operating speeds. Therefore, when both the water pump and the fan are working, the heat dissipation power and power consumption each have at least two values. To minimize the total power consumption while satisfying excess heat requirements, the operating time of each operating speed is determined, and temperature control is performed according to each operating time.

[0049] Example of a temperature control system for a vehicle motor system:

[0050] This embodiment discloses a temperature control system for a vehicle motor system. The temperature control system for a vehicle motor system based on this embodiment can solve the problems in the prior art where the inability to accurately reflect the heating status of the motor system leads to reduced vehicle driving safety and high energy consumption.

[0051] In this embodiment, the temperature control system of the vehicle motor system includes a processor and a memory. The processor is used to execute instructions stored in the memory to implement the temperature control method of the vehicle motor system in the method embodiment of the present invention. The temperature control method of the vehicle motor system has been described in detail in the above method embodiments. Those skilled in the art can generate corresponding computer instructions based on the temperature control method of the vehicle motor system to obtain the temperature control system of the vehicle motor system, which will not be repeated here. The memory is used to store the computer instructions generated according to the temperature control method of the vehicle motor system.

[0052] In this embodiment, the processor can be a microprocessor (MCU), a programmable logic device (FPGA), or other processing devices.

[0053] In this embodiment, the memory can be various types of memory that store information using electrical energy (e.g., RAM, ROM, etc.), various types of memory that store information using magnetic energy (e.g., hard disk, floppy disk, magnetic tape, magnetic core memory, bubble memory, USB flash drive, etc.), and various types of memory that store information using optical methods (e.g., CD, DVD, etc.). Of course, the memory can also be other types of memory (e.g., quantum memory, graphene memory, etc.).

[0054] Vehicle Example:

[0055] This embodiment also provides a vehicle, which includes a motor system. Figure 2 This is a schematic diagram of the remote upgrade architecture for the vehicle and monitoring platform of the present invention. Figure 2 As shown, the vehicle also includes a monitoring host and an OTA terminal device.

[0056] In this embodiment, the monitoring host acquires the speed and torque of the motor system. The monitoring host includes, for example, sensors. The sensors are used to collect the speed and torque of the motor system.

[0057] In this embodiment, as Figure 2 As shown, the vehicle's monitoring host also interacts with the monitoring platform via a wireless network base station. Specifically, the monitoring platform is, for example, a big data monitoring OTA platform (hereinafter referred to as an OTA platform). The monitoring host transmits vehicle operation data to the big data monitoring OTA platform via a wireless network. The monitoring host can also receive control commands from the big data monitoring OTA platform and send the control commands to the OTA terminal device to achieve vehicle control.

[0058] In this embodiment, the OTA terminal device is a vehicle controller. Based on the acquired rotational speed and torque of the motor system, the vehicle controller implements the temperature control method for the vehicle motor system in this invention's method embodiment. This temperature control method for the vehicle motor system has been described in detail in the above method embodiments and will not be repeated here.

[0059] In this embodiment, there are two ways to upgrade the computer instructions (hereinafter referred to as temperature control instructions) used in the vehicle controller to implement the temperature control method of the motor system. One method is for the vehicle controller to automatically upgrade and solidify the detected temperature control instructions after self-learning based on operating conditions. The other method is for the big data monitoring OTA platform to receive vehicle operating data, perform self-learning, generate operating condition data, and then generate optimized temperature control instructions using the vehicle motor system temperature control method described in the above embodiment. The OTA platform pushes the optimized temperature control instructions to the vehicle user and backend administrators. The vehicle user can choose whether to automatically upgrade. If the vehicle user agrees to the upgrade, the administrator reviews and issues the OTA upgrade instruction, thereby realizing the remote program upgrade function. In this case, upgrading the temperature control instructions through self-learning based on operating conditions can reduce the cooling system's operating time and achieve energy savings. Furthermore, by combining the actual vehicle operating conditions with the temperature control instructions generated through self-learning and pushing them to the customer, allowing the customer to choose whether to upgrade, the customer's driving experience is improved, and customer loyalty is increased.

[0060] The vehicle based on this embodiment can solve the problem in the prior art that the inability to accurately reflect the heating status of the motor system leads to reduced vehicle driving safety and high energy consumption.

Claims

1. A temperature control method of a vehicle motor system, characterized by, include: 1) After the vehicle runs on a fixed route for a period of time, the vehicle's running data during each time period on the fixed route is acquired. Through the working condition self-learning technology, complete working condition data of the fixed route is formed. Combined with the system efficiency MAP table corresponding to each fixed route formed during the motor system bench calibration process, the heat generation power diagram of the motor system under the historical working conditions of the corresponding route is obtained by referring to the corresponding system efficiency MAP table based on the working condition data acquired above. 2) Obtain the heat dissipation power when the water pump and fan are not working. Integrate the difference between the heat dissipation power of the motor system and the heat dissipation power under this condition within a set time period to obtain the excess heat. 3) If the excess heat is greater than the heat threshold, the excess heat and the heat dissipation power and power consumption under two working conditions are used to determine the working time under these two conditions: the water pump is working but the fan is not working and the water pump and fan are both working. The determined working time must meet the following two conditions: Condition 1: The heat dissipation energy under the two working conditions is equal to the excess heat; Condition 2: The working time under the two working conditions within the set time period minimizes the total power consumption; and the water pump and fan are controlled based on the obtained working time.

2. The temperature control method for a vehicle motor system according to claim 1, characterized in that, If the excess heat in step 3) is not greater than the heat threshold, the water pump and fan will not work, and natural heat dissipation will be carried out.

3. The temperature control method for a vehicle motor system according to claim 1, characterized in that, In step 3), the heat dissipation energy in both cases must meet the following requirements: The total power consumption under these two scenarios is: in, Indicates excess calories. P1 represents the total power consumption, P2 represents the heat dissipation power when the water pump is working and the fan is not working, t1 is the operating time when the water pump is working and the fan is not working, and P... a P3 represents the power consumption when the water pump is working and the fan is not working; P2 represents the heat dissipation power when the water pump is working and the fan is working; and t2 represents the operating time when the water pump is working and the fan is working. b This indicates the power consumption when the water pump and fan are operating.

4. The temperature control method for a vehicle motor system according to claim 1, characterized in that, Step 1) involves using in-vehicle intelligent terminal equipment in conjunction with a vehicle monitoring platform to obtain the vehicle's operating data for each time period during its operation on the fixed route.

5. The temperature control method for a vehicle motor system according to claim 1, characterized in that, The fan described in step 3) has at least two operating speeds. When both the water pump and the fan are working, the heat dissipation power and power consumption have at least two values. Under the condition of satisfying excess heat, the working time of each operating speed is determined to minimize the total power consumption.

6. The temperature control method for a vehicle motor system according to claim 1 or 2, characterized in that, The heat threshold is calculated based on the temperature rise limit.

7. A temperature control system for a vehicle motor system, characterized in that, include: A memory and a processor, the processor being configured to execute instructions stored in the memory to implement a temperature control method for a vehicle motor system, the temperature control method for the vehicle motor system comprising the following steps: 1) After the vehicle runs on a fixed route for a period of time, the vehicle's running data during each time period on the fixed route is acquired. Through the working condition self-learning technology, complete working condition data of the fixed route is formed. Combined with the system efficiency MAP table corresponding to each fixed route formed during the motor system bench calibration process, the heat generation power diagram of the motor system under the historical working conditions of the corresponding route is obtained by referring to the corresponding system efficiency MAP table based on the working condition data acquired above. 2) Obtain the heat dissipation power when the water pump and fan are not working. Integrate the difference between the heat dissipation power of the motor system and the heat dissipation power under this condition within a set time period to obtain the excess heat. 3) If the excess heat is greater than the heat threshold, the excess heat and the heat dissipation power and power consumption under two working conditions are used to determine the working time under these two conditions: the water pump is working but the fan is not working and the water pump and fan are both working. The determined working time must meet the following two conditions: Condition 1: The heat dissipation energy under the two working conditions is equal to the excess heat; Condition 2: The working time under the two working conditions within the set time period minimizes the total power consumption; and the water pump and fan are controlled based on the obtained working time.

8. The temperature control system for the vehicle motor system according to claim 7, characterized in that, If the excess heat in step 3) is not greater than the heat threshold, the water pump and fan will not work, and natural heat dissipation will be carried out.

9. The temperature control system for the vehicle motor system according to claim 7, characterized in that, In step 3), the heat dissipation energy in both cases must meet the following requirements: The total power consumption under these two scenarios is: in, Indicates excess calories. P1 represents the total power consumption, P2 represents the heat dissipation power when the water pump is working and the fan is not working, t1 is the operating time when the water pump is working and the fan is not working, and P... a P3 represents the power consumption when the water pump is working and the fan is not working; P2 represents the heat dissipation power when the water pump is working and the fan is working; and t2 represents the operating time when the water pump is working and the fan is working. b This indicates the power consumption when the water pump and fan are operating.

10. The temperature control system for the vehicle motor system according to claim 7, characterized in that, Step 1) involves using in-vehicle intelligent terminal equipment in conjunction with a vehicle monitoring platform to obtain the vehicle's operating data for each time period during its operation on the fixed route.

11. The temperature control system for the vehicle motor system according to claim 7, characterized in that, The fan described in step 3) has at least two operating speeds. When both the water pump and the fan are working, the heat dissipation power and power consumption have at least two values. Under the condition of satisfying excess heat, the working time of each operating speed is determined to minimize the total power consumption.

12. The temperature control system for the vehicle motor system according to claim 7 or 8, characterized in that, The heat threshold is calculated based on the temperature rise limit.

13. A vehicle comprising an electric motor system, characterized in that, It also includes a monitoring host and an OTA terminal device. The monitoring host is used to acquire the speed and torque of the motor system, and the OTA terminal device is used to implement a temperature control method for the vehicle motor system based on the acquired speed and torque of the motor system. The temperature control method for the vehicle motor system includes the following steps: 1) After the vehicle has been running on a fixed route for a period of time, the operating data of the vehicle during the various time periods of the fixed route is acquired. Through the working condition self-learning technology, complete working condition data of the fixed route is formed. Combined with the system efficiency MAP table corresponding to each fixed route formed during the motor system bench calibration process, the heat power diagram of the motor system under the historical working conditions of the corresponding route is obtained by referring to the corresponding system efficiency MAP table based on the above acquired working condition data. The speed and torque of the vehicle motor system are obtained. The efficiency of the motor and controller under the speed and torque conditions is obtained by using the system efficiency MAP table. The efficiency MAP table records the efficiency of the motor and controller under different speed and torque combinations of the vehicle motor system. Then, the percentage of heat power of the motor system is calculated. The heat power of the motor system is obtained based on the percentage of heat power of the motor system. 2) Obtain the heat dissipation power when the water pump and fan are not working. Integrate the difference between the heat dissipation power of the motor system and the heat dissipation power under this condition within a set time period to obtain the excess heat. 3) If the excess heat is greater than the heat threshold, the excess heat and the heat dissipation power and power consumption under two working conditions are used to determine the working time under these two conditions: the water pump is working but the fan is not working and the water pump and fan are both working. The determined working time must meet the following two conditions: Condition 1: The heat dissipation energy under the two working conditions is equal to the excess heat; Condition 2: The working time under the two working conditions within the set time period minimizes the total power consumption; and the water pump and fan are controlled based on the obtained working time.

14. The vehicle according to claim 13, characterized in that, If the excess heat in step 3) is not greater than the heat threshold, the water pump and fan will not work, and natural heat dissipation will be carried out.

15. The vehicle according to claim 13, characterized in that, In step 3), the heat dissipation energy in both cases must meet the following requirements: The total power consumption under these two scenarios is: in, Indicates excess calories. P1 represents the total power consumption, P2 represents the heat dissipation power when the water pump is working and the fan is not working, t1 is the operating time when the water pump is working and the fan is not working, and P... a P3 represents the power consumption when the water pump is working and the fan is not working; P2 represents the heat dissipation power when the water pump is working and the fan is working; and t2 represents the operating time when the water pump is working and the fan is working. b This indicates the power consumption when the water pump and fan are operating.

16. The vehicle according to claim 13, characterized in that, Step 1) involves using in-vehicle intelligent terminal equipment in conjunction with a vehicle monitoring platform to obtain the vehicle's operating data for each time period during its operation on the fixed route.

17. The vehicle according to claim 13, characterized in that, The fan described in step 3) has at least two operating speeds. When both the water pump and the fan are working, the heat dissipation power and power consumption have at least two values. Under the condition of satisfying excess heat, the working time of each operating speed is determined to minimize the total power consumption.

18. The vehicle according to claim 13 or 14, characterized in that, The heat threshold is calculated based on the temperature rise limit.

19. The vehicle according to claim 13, characterized in that, The monitoring host interacts with the monitoring platform.

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