A new energy vehicle thermal management system and a temperature sensor

Abstract

The application discloses a new energy automobile thermal management system, which comprises a control module, a battery thermal management unit, a motor thermal management unit, a vehicle-mounted electronic equipment thermal management unit and an air conditioning system thermal management unit; a temperature sensor comprises a fixed shell, a mounting shell is arranged at the lower portion of the fixed shell, a mounting groove is formed in the bottom end of the mounting shell, a lead groove is formed in one side of the mounting shell, a wiring groove is formed in the upper end of the lead groove, and a thermistor head is clamped and mounted in the mounting groove. The application generates a broken line graph by temperature data, collects the change temperature of the broken line graph by a temperature base, carries out reverse control adjustment through a PID control algorithm, and wraps the temperature sensor and points the welding points, so that the control and adjustment of the new energy automobile thermal management are improved, the thermistor head of the temperature sensor is wrapped, and the damage of the welding points is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of new energy vehicles, more specifically, it relates to a new energy vehicle thermal management system, and the present application also relates to a temperature sensor. BACKGROUND

[0002] The thermal management system and temperature sensor of new energy vehicles are important technologies to ensure that batteries, electric motors and other key components operate efficiently within the normal temperature range. With the development of new energy vehicle technology, especially in the field of electric vehicles, the performance of thermal management systems and temperature monitoring systems has become increasingly critical.

[0003] Temperature sensors are one of the key components in the thermal management system of new energy vehicles. Their main role is to monitor the temperature of key components such as batteries, electric motors, power electronic units in real time, providing data support for the thermal management system, helping the system adjust heating or cooling strategies to ensure that each component is always within the optimal operating temperature range.

[0004] The thermal management system of new energy vehicles is crucial to ensuring vehicle safety, improving battery life and extending overall service life. As a core component of the thermal management system, temperature sensors can monitor the temperature changes of key components in real time, helping the thermal management system respond in a timely manner. With the continuous progress of new energy vehicle technology, the thermal management system and temperature sensor technology are also constantly improving, and in the future, more efficient and intelligent thermal management solutions may emerge, further promoting the popularization and development of new energy vehicles.

[0005] The quality requirements for temperature sensors are becoming higher and higher in today's society, and the procurement cost of products is also becoming lower and lower, which is due to the rise of new forces in the automotive industry and the rise of new energy vehicles.

[0006] However, there are some problems in the existing technology: the existing thermal management system of new energy vehicles cannot accurately collect temperature data when adjusting the temperature control, and cannot control the reverse adjustment according to the temperature data, resulting in inaccurate control of the thermal management of new energy vehicles. The temperature sensor of the existing technology is encapsulated by epoxy to make it insulating, and if impurities are mixed into the epoxy, short circuit problems may occur after a certain period of aging. In addition, many soldering processes use soldering, which may produce a lot of tin slag, plastic particles and carbonization problems, which may cause the product to fail. Therefore, we propose a new energy vehicle thermal management system and temperature sensor. SUMMARY

[0007] In response to the problems existing in the prior art, the purpose of the present invention is to provide a new energy vehicle thermal management system and temperature sensor, which generates a line graph for temperature data, collects the changing temperature of the line graph through the temperature base, and then performs reverse control and adjustment through a PID control algorithm, wraps the temperature sensor, and glues the solder joints, thereby improving the control and adjustment of the thermal management of new energy vehicles, keeping the thermistor head of the temperature sensor wrapped, and reducing solder joint damage.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a new energy vehicle thermal management system, comprising a control module, a battery thermal management unit, a motor thermal management unit, an on-board electronic equipment thermal management unit, and an air conditioning system thermal management unit;

[0009] The battery thermal management unit includes a temperature sensor for detecting the temperature of the battery module, and a liquid cooling module and an air cooling module for cooling the battery module. The battery thermal management unit regulates the temperature of the battery module through the liquid cooling module and the air cooling module. The liquid cooling module absorbs heat by flowing coolant between the battery modules, and the air cooling module dissipates heat from the battery modules through air flow.

[0010] The motor thermal management unit includes a temperature sensor for detecting the temperature of the motor module, and a liquid cooling module and an air cooling module for cooling the motor module. The motor thermal management unit adjusts the temperature of the motor through the liquid cooling module and the air cooling module. The liquid cooling module and the air cooling module maintain a suitable temperature during operation through coolant and cold air. The liquid cooling module absorbs heat by flowing coolant through the coil of the motor, and the air cooling module dissipates heat by blowing cold air to the outer surface of the motor.

[0011] The vehicle-mounted electronic equipment thermal management unit includes a temperature sensor for detecting the temperature of the vehicle-mounted electronic equipment, and includes a liquid cooling module and an air cooling module for cooling the vehicle-mounted electronic equipment. The vehicle-mounted electronic equipment thermal management unit dissipates heat from the high-power electronic equipment through the liquid cooling module and the air cooling module. The liquid cooling module absorbs heat from the high-power electronic equipment through the coolant, and the air cooling module dissipates heat by blowing air through the outer surface of the high-power electronic equipment.

[0012] The air conditioning system thermal management includes a temperature sensor for detecting the air conditioning temperature, and includes a heat pump module and a battery heat exchange module, the air conditioning system thermal management uses an electric drive compressor to exchange heat with low-temperature refrigerant to remove heat or provide cold air in the vehicle, the heat pump module is used to provide heating function in winter, the heat pump module is used to provide efficient energy recovery and heat transfer, reduce energy consumption, and the battery heat exchange module is used to heat the battery using the air conditioner in winter;

[0013] The control module collects temperature data of the battery thermal management unit, the motor thermal management unit, the vehicle-mounted electronic equipment thermal management unit and the air conditioning system thermal management through the acquisition module, generates a broken line chart according to the collected temperature data, generates a temperature baseline according to the temperature data, detects the change temperature, and then adjusts the reverse control through the PID control algorithm, and then the control module drives the liquid cooling module, the air cooling module, the heat pump module, the battery heat exchange module and the compressor through the driving module, to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the vehicle-mounted electronic equipment thermal management unit and the air conditioning system thermal management unit.

[0014] Specifically, the cooling liquid circuit in the liquid cooling module is used to realize heat dissipation treatment of the battery module, the motor module and the vehicle-mounted electronic equipment, and the liquid cooling module is integrated with the heat exchange modules of the battery module, the motor module and the vehicle-mounted electronic equipment, and a plurality of electromagnetic control valves are arranged on the liquid cooling module, and the electromagnetic control valves are used to control and adjust the circulation and delivery of the cooling liquid.

[0015] Specifically, the temperature data is preprocessed after being collected to improve the accuracy and integrity of the temperature data, and the preprocessing includes removing noise, detecting abnormal values and filling missing values.

[0016] The noise removal uses different scales of windows for median filtering of each temperature data, and then performs weighted fusion on the filtering results of different scales.

[0017] ,

[0018] Wherein, represents the output temperature data after filtering; represents the number of scales, that is, the number of different scales used in the median filtering operation, and each scale corresponds to a different size of the filtering window; represents the weight of the scale , used for weighted average of the filtering results of different scales; represents the filtering result of the scale The following is the result of median filtering on the data. Specifically, It is on scale All data within the window range under , that is, the neighborhood data at this scale; Representative scale The corresponding neighborhood window has different sizes at different scales.

[0019] Specifically, the calculation of the outlier detection is as follows:

[0020] The Z-score of the data is obtained by calculating the difference between the data and the mean and dividing it by the standard deviation;

[0021] ,

[0022] in, is the value of the temperature data, is the mean of the temperature data, is the standard deviation of the temperature data. Points with a Z value greater than 3 or less than -3 are considered outliers and are removed.

[0023] The missing value filling is used to fill the vacancies of outlier removal and the vacant positions of missing value detection by the mean, and the mean is calculated as follows:

[0024] ,

[0025] in, is the value of non-missing data, is the number of non-missing data.

[0026] Specifically, the temperature baseline is set to be calculated using the mean value:

[0027] ,

[0028] in, is the weight of the temperature data, It's time Temperature data at the moment, is the total amount of temperature data collected, is the calculated temperature base, and the temperature base is ;

[0029] And the temperature base Integrate into the line chart, for the temperature base value exceeding the line chart The data is used as the changing temperature.

[0030] Specifically, the calculation formula of the PID control algorithm is as follows:

[0031] ,

[0032] in, is the proportional gain, is the integral gain, is the differential gain, is the error value, is the output of the controller, used to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit, the air conditioning system thermal management unit, and control the electromagnetic control valve;

[0033] Error value The calculation formula is as follows:

[0034] ,

[0035] in, is the threshold data, It is the temperature data detected by the temperature base.

[0036] Specifically, the temperature sensor includes a fixed shell, a mounting shell is provided at the lower part of the fixed shell, a mounting groove is provided inside the bottom end of the mounting shell, a lead groove is provided on one side of the mounting shell, a wiring groove is provided at the upper end of the lead groove, a thermistor head is mounted inside the mounting groove, the upper end of the thermistor head is electrically connected to the pin wire, a welding wire is fixed inside the wiring groove, and the welding wire is connected to the pin wire by soldering.

[0037] Specifically, a connector is fixedly provided on the upper end of the fixed shell, and an outer shell is sleeved on the lower part of the installation shell.

[0038] Specifically, a sealing groove is formed at the upper end of the fixed shell, a sealing ring is snap-connected inside the sealing groove, and the upper end of the outer shell is snap-connected to the outer side of the sealing ring.

[0039] Specifically, a thermal grease column is provided inside the outer shell, and one end of the thermal grease column is attached to the bottom end of the thermistor head.

[0040] Technical effects and advantages of the present invention:

[0041] This invention aims to optimize the efficiency and safety of batteries, electric motors, onboard electronics, and air conditioning systems through precise temperature control. By combining multiple thermal management units with efficient temperature acquisition and regulation, it ensures that different components maintain optimal operating temperatures under different operating conditions, thereby improving the energy efficiency and service life of the entire vehicle.

[0042] By monitoring and providing real-time temperature feedback for modules such as the battery, electric motor, and onboard electronic equipment, the system can dynamically adjust heat dissipation to prevent overheating and reduce the risk of failures caused by high temperatures. It also utilizes PID control algorithms to reverse temperature changes, avoiding instability caused by temperature fluctuations and ensuring that all system components are in optimal working condition.

[0043] Liquid and air cooling modules effectively remove excess heat through flowing coolant and air, preventing component overheating and improving energy efficiency and battery charge and discharge efficiency. The air conditioning system's heat pump module not only provides winter heating but also recovers heat, reducing energy waste. The battery heat exchange module heats the battery in winter, helping to improve battery charge and discharge performance in low-temperature environments.

[0044] Through precise temperature data collection and preprocessing, the accuracy and integrity of the data are greatly improved, providing a reliable foundation for subsequent control strategies. The use of advanced PID control algorithms can accurately adjust the working status of cooling modules such as liquid cooling and air cooling, ensuring timely response to temperature changes under different working conditions, thereby ensuring efficient and stable operation of the system. The precise adjustment of liquid cooling and air cooling modules can effectively prevent equipment aging or performance degradation caused by excessively high or low temperatures, and extend the service life of key components such as batteries and electric motors.

[0045] The temperature sensor features a special design that is resistant to interference, has excellent sealing, and offers high precision. The close contact between the thermal grease column and the thermistor tip allows for faster and more accurate temperature sensing, further improving the responsiveness of the temperature control system. The temperature sensor's sealed design ensures stability and durability in complex environments, adapting to the long-term operation and high-load conditions of new energy vehicles.

[0046] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the system structure provided by the present invention;

[0048] Figure 2 It is a schematic diagram of the structure of the temperature sensor provided by the present invention;

[0049] Figure 3 It is a side view of a part of the structure provided by the present invention;

[0050] Figure 4 This is a connection diagram of the thermistor head provided by the present invention;

[0051] Figure 5 It is a bottom view of a part of the structure provided by the present invention.

[0052] In the figure: 1. Fixed shell; 2. Outer shell; 3. Connector; 4. Lead groove; 5. Wiring groove; 6. Sealing groove; 7. Mounting shell; 8. Thermal grease column; 9. Thermistor head; 10. Pin wire; 11. Welding wire; 12. Sealing ring; 13. Mounting groove. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0054] like Figure 1 As shown, an embodiment of the present invention provides a new energy vehicle thermal management system, including a control module, a battery thermal management unit, a motor thermal management unit, an on-board electronic equipment thermal management unit, and an air conditioning system thermal management unit;

[0055] The battery thermal management unit includes a temperature sensor for detecting the temperature of the battery module, and a liquid cooling module and an air cooling module for cooling the battery module. The battery thermal management unit regulates the temperature of the battery module through the liquid cooling module and the air cooling module. The liquid cooling module absorbs heat by flowing coolant between the battery modules, and the air cooling module dissipates heat from the battery modules through air flow.

[0056] The motor thermal management unit includes a temperature sensor for detecting the temperature of the motor module, and a liquid cooling module and an air cooling module for cooling the motor module. The motor thermal management unit regulates the temperature of the motor through the liquid cooling module and the air cooling module. The liquid cooling module and the air cooling module maintain a suitable temperature during operation through coolant and cold air. The liquid cooling module absorbs heat by flowing coolant through the coils of the motor, and the air cooling module dissipates heat by blowing cold air onto the outer surface of the motor.

[0057] The vehicle-mounted electronic equipment thermal management unit includes a temperature sensor for detecting the temperature of the vehicle-mounted electronic equipment, and a liquid cooling module and an air cooling module for cooling the vehicle-mounted electronic equipment. The vehicle-mounted electronic equipment thermal management unit dissipates heat from the high-power electronic equipment through the liquid cooling module and the air cooling module. The liquid cooling module absorbs heat from the high-power electronic equipment through the coolant, and the air cooling module dissipates heat by blowing air through the outer surface of the high-power electronic equipment.

[0058] The thermal management of the air conditioning system includes a temperature sensor for detecting the air conditioning temperature, a heat pump module, and a battery heat exchange module. The air conditioning system thermal management uses an electrically driven compressor to perform heat exchange with a low-temperature refrigerant to remove heat from the vehicle or provide cooling. The heat pump module is used to provide heating in winter. The heat pump module is used to provide efficient energy recovery and heat transfer to reduce energy consumption. The battery heat exchange module is used to use the air conditioning to heat the battery in winter.

[0059] The control module collects temperature data of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit and the air-conditioning system thermal management through the acquisition module. The control module generates a line graph of the collected temperature data and generates a temperature baseline based on the temperature data to detect temperature changes. The PID control algorithm is then used for reverse control adjustment. The control module then drives the liquid cooling module, the air cooling module, the heat pump module, the battery heat exchange module and the compressor through the drive module to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit and the air-conditioning system thermal management unit.

[0060] In this embodiment, preferably, the coolant circuit in the liquid cooling module is used to achieve heat dissipation for the battery module, the motor module, and the on-board electronic equipment, and the liquid cooling module is integrated with the heat exchange module of the battery module, the motor module, and the on-board electronic equipment. The liquid cooling module is provided with a plurality of electromagnetic control valves, which are used to control and regulate the circulation of the coolant;

[0061] It should be noted that through the integration of coolant circuits, heat exchange modules and solenoid control valves, efficient and intelligent thermal management solutions are provided for the batteries, electric motors and on-board electronic equipment of new energy vehicles; the intelligent adjustment system ensures that different modules maintain stable operating temperatures under various working conditions, thereby improving the performance, safety and energy efficiency of the entire vehicle, and effectively extending the service life of each key component of the system.

[0062] In this embodiment, preferably, the temperature data is preprocessed after collection to improve the accuracy and integrity of the temperature data, and the preprocessing includes noise removal, outlier detection and missing value filling;

[0063] Remove noise for each temperature data Use windows of different scales to perform median filtering, and then perform weighted fusion on the filtering results of different scales;

[0064] ,

[0065] in, Represents the temperature data output after filtering; Indicates the number of scales, that is, the number of different scales used when performing median filtering operations, each scale corresponds to a filter window of different sizes; Representation scale The weight of is used to perform weighted averaging of filtering results of different scales; Indicated on scale The following is the result of median filtering on the data. Specifically, It is on scale All data within the window range under , that is, the neighborhood data at this scale; Representative scale The corresponding neighborhood window has different sizes at different scales;

[0066] It should be noted that by preprocessing the temperature data, the accuracy and integrity of the temperature data can be improved, and by processing the temperature data through median filtering, the accuracy of the temperature data can be improved and the noise in the temperature data can be reduced.

[0067] In this embodiment, preferably, the calculation of outlier detection is as follows:

[0068] The Z-score of the data is obtained by calculating the difference between the data and the mean and dividing it by the standard deviation;

[0069] ,

[0070] in, is the value of the temperature data, is the mean of the temperature data, is the standard deviation of the temperature data. Points with a Z value greater than 3 or less than -3 are considered outliers and are removed.

[0071] Missing value filling is used to fill the vacancies of outlier removal and missing value detection by the mean, and the mean is calculated as follows:

[0072] ,

[0073] in, is the value of non-missing data, is the number of non-missing data;

[0074] It should be noted that outlier detection is used to detect abnormal data in temperature data, and the average value is used to fill in abnormal values ​​or missing values ​​to improve the integrity of the temperature data.

[0075] In this embodiment, preferably, the temperature baseline is calculated using the mean value:

[0076] ,

[0077] in, is the weight of the temperature data, It's time Temperature data at the moment, is the total amount of temperature data collected, is the calculated temperature base, and the temperature base is ;

[0078] And the temperature base Integrate into the line chart, for the temperature base value exceeding the line chart The data is used as the changing temperature;

[0079] When it is necessary to explain, the temperature baseline is calculated and processed by weighted mean, and the line graph is detected by the temperature baseline, so as to obtain the temperature change in the temperature data and facilitate the subsequent reverse control adjustment through the temperature change.

[0080] In this embodiment, preferably, the calculation formula of the PID control algorithm is as follows:

[0081] ,

[0082] in, is the proportional gain, is the integral gain, is the differential gain, is the error value, It is the output of the controller, which is used to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the vehicle electronic equipment thermal management unit, and the air conditioning system thermal management unit, and to control the electromagnetic control valve;

[0083] Error value The calculation formula is as follows:

[0084] ,

[0085] in, is the threshold data, It is the temperature data detected by the temperature base;

[0086] It should be noted that through the application of PID control algorithm, precise adjustment of the thermal management system is achieved, so that the battery, motor, electronic equipment and air-conditioning system are always kept within the appropriate temperature range under different working conditions. The error value calculation formula adjusts the error through the difference between the set temperature and the real-time temperature, and the proportional, integral and differential functions of the PID controller can effectively control temperature fluctuations and improve the stability and efficiency of the system.

[0087] refer to Figure 2-5 A temperature sensor includes a fixed shell 1, a mounting shell 7 is provided at the lower part of the fixed shell 1, a mounting groove 13 is opened inside the bottom end of the mounting shell 7, a lead groove 4 is opened on one side of the mounting shell 7, a wiring groove 5 is opened at the upper end of the lead groove 4, a thermistor head 9 is fixedly installed inside the mounting groove 13, the upper end of the thermistor head 9 is electrically connected to the pin line 10, a welding wire 11 is fixed inside the wiring groove 5, and the welding wire 11 is connected to the pin line 10 by soldering.

[0088] In this embodiment, preferably, a connector 3 is fixedly provided on the upper end of the fixed housing 1, and the lower portion of the mounting housing 7 is sleeved with the outer housing 2;

[0089] It should be noted that the connector 3 makes it easy to connect the temperature sensor and transmit the temperature data collected by the temperature sensor, and the setting of the outer shell 2 is used to realize a protective connection to the mounting shell 7, protect the internal thermistor head 9, and prevent the temperature sensor from being penetrated by moisture when in use.

[0090] In this embodiment, preferably, a sealing groove 6 is formed at the upper end of the fixed housing 1, a sealing ring 12 is snap-connected to the interior of the sealing groove 6, and the upper end of the outer housing 2 is snap-connected to the outer side of the sealing ring 12;

[0091] It should be noted that the sealing groove 6 and the sealing ring 12 are used to achieve a sealed connection with the outer shell 2 , and the stability of the connection of the outer shell 2 can be maintained to prevent the outer shell 2 from leaking or falling off.

[0092] In this embodiment, preferably, a thermal grease column 8 is provided inside the outer shell 2, and one end of the thermal grease column 8 is attached to the bottom end of the thermistor head 9;

[0093] It should be noted that the thermal grease column 8 is set to fit on one end of the thermistor head 9 to facilitate the absorption and transmission of temperature to the thermistor head 9, so that the thermistor head 9 can collect temperature data.

[0094] The specific operation process of the present invention is as follows:

[0095] The control module collects temperature data through temperature sensors installed on the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit and the air-conditioning system thermal management unit, and the control module preprocesses the temperature data to remove noise, detect outliers and fill in missing values ​​of the temperature data, thereby improving the accuracy and integrity of the temperature data. A line graph is then generated for the temperature data, and a temperature baseline is generated based on the temperature data for detecting temperature changes. Reverse control adjustment is then performed through a PID control algorithm. The control module then drives the liquid cooling module, the air cooling module, the heat pump module, the battery heat exchange module and the compressor through the drive module to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit and the air-conditioning system thermal management unit.

[0096] The temperature sensor is installed on the thermistor head 9 through the installation groove 13, and the upper end of the thermistor head 9 is electrically connected to the pin line 10. A lead groove 4 is provided on one side of the installation shell 7, and a wiring groove 5 is provided at the upper end of the lead groove 4. A welding wire 11 is fixed inside the wiring groove 5. The welding wire 11 is connected to the pin line 10 by soldering. After welding, the welding points are protected by solder point protection glue, and thermal grease is applied in the shell. Then the outer shell 2 and the installation shell 7 are assembled, and then riveted, and finally the retaining ring and the sealing ring 12 are installed, so that the temperature sensor can maintain sealing and waterproof properties.

[0097] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new energy vehicle thermal management system, characterized in that: Including control module, battery thermal management unit, motor thermal management unit, vehicle electronic equipment thermal management unit and air conditioning system thermal management unit; The battery thermal management unit includes a temperature sensor for detecting the temperature of the battery module, and a liquid cooling module and an air cooling module for cooling the battery module. The battery thermal management unit regulates the temperature of the battery module through the liquid cooling module and the air cooling module. The liquid cooling module absorbs heat by flowing coolant between the battery modules, and the air cooling module dissipates heat from the battery modules through air flow. The motor thermal management unit includes a temperature sensor for detecting the temperature of the motor module, and a liquid cooling module and an air cooling module for cooling the motor module. The motor thermal management unit adjusts the temperature of the motor through the liquid cooling module and the air cooling module. The liquid cooling module and the air cooling module maintain a suitable temperature during operation through coolant and cold air. The liquid cooling module absorbs heat by flowing coolant through the coil of the motor, and the air cooling module dissipates heat by blowing cold air to the outer surface of the motor. The vehicle-mounted electronic equipment thermal management unit includes a temperature sensor for detecting the temperature of the vehicle-mounted electronic equipment, and includes a liquid cooling module and an air cooling module for cooling the vehicle-mounted electronic equipment. The vehicle-mounted electronic equipment thermal management unit dissipates heat from the high-power electronic equipment through the liquid cooling module and the air cooling module. The liquid cooling module absorbs heat from the high-power electronic equipment through the coolant, and the air cooling module dissipates heat by blowing air through the outer surface of the high-power electronic equipment. The thermal management system includes a temperature sensor for detecting the air conditioner temperature, a heat pump module, and a battery heat exchange module. The thermal management system uses an electrically driven compressor to perform heat exchange with a low-temperature refrigerant to remove heat from the vehicle or provide cooling. The heat pump module is used to provide heating in winter. The heat pump module is used to provide efficient energy recovery and heat transfer to reduce energy consumption. The battery heat exchange module is used to use the air conditioner to heat the battery in winter. The control module collects temperature data of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit, and the air-conditioning system thermal management through the acquisition module. The control module generates a line graph based on the collected temperature data and generates a temperature baseline based on the temperature data for detecting temperature changes. The control module then performs reverse control adjustment through the PID control algorithm. The control module then drives the liquid cooling module, the air cooling module, the heat pump module, the battery heat exchange module, and the compressor through the drive module to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit, and the air-conditioning system thermal management unit. The temperature baseline is set to be calculated using the mean value: ， in, is the weight of the temperature data, It's time Temperature data at the moment, is the total amount of temperature data collected, is the calculated temperature base, and the temperature base is ; And the temperature base Integrate into the line chart, for the temperature base value exceeding the line chart The data is used as the changing temperature.

2. A new energy vehicle thermal management system according to claim 1, characterized in that: The coolant circuit in the liquid cooling module is used to achieve heat dissipation for the battery module, the motor module and the on-board electronic equipment, and the liquid cooling module is integrated with the heat exchange module of the battery module, the motor module and the on-board electronic equipment. The liquid cooling module is provided with several electromagnetic control valves, which are used to control and regulate the circulation of the coolant.

3. The new energy vehicle thermal management system according to claim 1, characterized in that: The temperature data is preprocessed after collection to improve the accuracy and integrity of the temperature data, and the preprocessing includes noise removal, outlier detection and missing value filling; The noise removal for each temperature data Use windows of different scales to perform median filtering, and then perform weighted fusion on the filtering results of different scales; ， in, Represents the temperature data output after filtering; Indicates the number of scales, that is, the number of different scales used when performing median filtering operations, each scale corresponds to a filter window of different sizes; Representation scale The weight of is used to perform weighted averaging of filtering results of different scales; Indicated on scale The following is the result of median filtering on the data. Specifically, It is on scale All data within the window range under , that is, the neighborhood data at this scale; Representative scale The corresponding neighborhood window has different sizes at different scales.

4. A new energy vehicle thermal management system according to claim 3, characterized in that: The calculation of the outlier detection is as follows: The Z-score of the data is obtained by calculating the difference between the data and the mean and dividing it by the standard deviation; ， in, is the value of the temperature data, is the mean of the temperature data, is the standard deviation of the temperature data. Points with a Z value greater than 3 or less than -3 are considered outliers and are removed. The missing value filling is used to fill the vacancies of outlier removal and the vacant positions of missing value detection by the mean, and the mean is calculated as follows: ， in, is the value of non-missing data, is the number of non-missing data.

5. The new energy vehicle thermal management system according to claim 2, characterized in that: The calculation formula of the PID control algorithm is as follows: ， in, is the proportional gain, is the integral gain, is the differential gain, is the error value, is the output of the controller, used to adjust the temperature of the battery thermal management unit, the motor thermal management unit, the on-board electronic equipment thermal management unit, the air conditioning system thermal management unit, and control the electromagnetic control valve; The error value is calculated as follows: ， in, is the threshold data, It is the temperature data detected by the temperature base.

6. The new energy vehicle thermal management system according to claim 1, characterized in that: The temperature sensor comprises a fixed housing (1), a mounting housing (7) is provided at the lower portion of the fixed housing (1), a mounting groove (13) is provided inside the bottom end of the mounting housing (7), a lead groove (4) is provided on one side of the mounting housing (7), a wiring groove (5) is provided at the upper end of the lead groove (4), a thermistor head (9) is fixedly installed inside the mounting groove (13), the upper end of the thermistor head (9) is electrically connected to a pin line (10), a welding wire (11) is fixed inside the wiring groove (5), and the welding wire (11) is connected to the pin line (10) by soldering.

7. A new energy vehicle thermal management system according to claim 6, characterized in that: A connector (3) is fixedly provided at the upper end of the fixed shell (1), and an outer shell (2) is sleeved on the lower part of the mounting shell (7).

8. The new energy vehicle thermal management system according to claim 7, characterized in that: A sealing groove (6) is provided at the upper end of the fixed housing (1), a sealing ring (12) is snap-connected inside the sealing groove (6), and the upper end of the outer housing (2) is snap-connected to the outside of the sealing ring (12).

9. A new energy vehicle thermal management system according to claim 8, characterized in that: A thermal grease column (8) is provided inside the outer shell (2), and one end of the thermal grease column (8) is attached to the bottom end of the thermistor head (9).

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