CA-3196722-C - TEMPERATURE CONTROL SYSTEM FOR DEVICE AND TEMPERATURE CONTROL METHOD

Abstract

A temperature control system for a device and a temperature control method. The control system comprises: a temperature measurement module (1), a temperature control module (2) and a temperature adjustment module (3), wherein the temperature measurement module (1) is used for measuring and obtaining the temperature at the current moment of the device; the temperature control module (2) is used for obtaining the predicted temperature at the next moment according to the temperature at the current moment and a temperature prediction model, and for outputting a temperature adjustment instruction to the temperature adjustment module (3) according to the predicted temperature at the next moment and a temperature threshold value; the temperature adjustment module (3) adjusts the temperature of the device according to the temperature adjustment instruction; and the temperature prediction model is obtained in advance. The temperature control method improves the temperature stability of the device during a working process and can ensure the electric energy conversion efficiency of the device.

Inventors

• Chao Wang

Assignees

• CHANGCHUN JETTY AUTOMOTIVE TECHNOLOGY CO., LTD.

Dates

Publication Date

20260505

Application Date

20210709

Priority Date

20201117

Claims (19)

1. 23 CLAIMS 1. A temperature control system for a device, comprising a temperature detection module, a temperature control module and a temperature adjustment module, wherein 5 the temperature detection module is configured to detect and obtain a temperature at a current moment of the device; the temperature control module is configured to obtain a predicted temperature at a next moment based on the temperature at the current moment and a temperature prediction model, and to output a temperature adjustment instruction to the temperature adjustment module based on the 10 predicted temperature at the next moment and a temperature threshold; and the temperature adjustment module is configured to adjust the temperature of the device based on the temperature adjustment instruction, wherein the temperature control module is further configured to output the temperature adjustment instruction to decrease the temperature of the device, if it is determined that the 15 predicted temperature at the next moment is greater than the temperature threshold and a first difference obtained by subtracting the temperature threshold from the predicted temperature at the next moment is greater than a first threshold; and the temperature control module is further configured to output the temperature adjustment instruction to increase the temperature of the device, if it is determined that the predicted 20 temperature at the next moment is less than the temperature threshold and a second difference obtained by subtracting the predicted temperature at the next moment from the temperature threshold is greater than a second threshold.
2. 2. The temperature control system according to claim 1, wherein the temperature prediction model is obtained by self-learning based on historical temperature data. 25
3. 3. The temperature control system according to claim 1, wherein the temperature prediction model is pre-obtained.
4. 4. The temperature control system according to claim 1, wherein the temperature detection module comprises a temperature detection unit which is a thermocouple temperature measurement circuit, a thermal resistor temperature measurement circuit, or a temperature acquisition chip. 30
5. 5. The temperature control system according to claim 4, wherein the temperature detection module further comprises a temperature detection precision processing unit comprising a voltage follower circuit, wherein the voltage follower circuit comprises a first comparator and a first capacitor; the first comparator comprises a first end connected to the temperature detection unit, a second end 24 connected to an output end of the first comparator, a third end connected to a first power supply, and a fourth end grounded; and the first capacitor comprises a first end grounded, and a second end connected to the first power supply.
6. 6. The temperature control system according to claim 4, wherein the temperature detection 5 module further comprises a temperature detection precision processing unit comprising a feedback amplifier circuit, wherein the feedback amplifier circuit comprises a second comparator, a first resistor, a second resistor and a third resistor, wherein a second end of the first resistor is connected to a second end of the second comparator, a first end of the second comparator is connected to a first end of the third 10 resistor and a second end of the second resistor, respectively, a second end of the third resistor is connected to an output end of the second comparator, a first end of the second resistor is grounded, a third end of the second comparator is connected to a first power supply, and a fourth end of the second comparator is grounded.
7. 7. The temperature control system according to claim 4, wherein the temperature detection 15 module further comprises a temperature detection precision processing unit comprising a filter circuit, wherein the filter circuit comprises a fourth resistor, a second capacitor and an inductor, wherein a second end of the fourth resistor is connected to a first end of the second capacitor and a first end of the inductor, respectively, a second end of the second capacitor is grounded, and a second end 20 of the inductor is connected to the temperature control module.
8. 8. The temperature control system according to claim 1, wherein the temperature adjustment module comprises a heating unit and a cooling unit.
9. 9. The temperature control system according to claim 8, wherein the heating unit realizes heating by means of heating resistance wire, copper electric heating plate, aluminum electric 25 heating plate, ceramic electric heating, stainless-steel electric heating tube, controlling circulating air duct heating or chemical reagent reaction heating.
10. 10. The temperature control system according to claim 8, wherein the heating unit comprises a heating resistance wire, a first MOS transistor, a fifth resistor and a sixth resistor, wherein a first end of the heating resistance wire is connected to a second power supply, a second end 30 of the heating resistance wire is connected to a drain of the first MOS transistor, a gate of the first MOS transistor is connected to a first end of the fifth resistor and a first end of the sixth resistor, respectively, a source of the first MOS transistor and a second end of the fifth resistor are grounded, and a second end of the sixth resistor is connected to the temperature control module.
11. 11. The temperature control system according to claim 8, wherein the cooling unit realizes cooling by means of liquid-cooled circulation cooling, metal heat pipe conduction cooling, graphite sheet conduction cooling, semiconductor cooling, chemical reagent cooling or radiating fan.
12. 12. The temperature control system according to claim 8, wherein the cooling unit comprises 5 a second MOS transistor, a seventh resistor and a radiating fan, wherein a first end of the seventh resistor and a drain of the second MOS transistor are connected to a third power supply, a gate of the second MOS transistor and a second end of the seventh resistor are connected to the temperature control module, a source of the second MOS transistor is connected to a first end of the radiating fan, and a second end of the radiating fan is grounded. 10
13. 13. The temperature control system according to any one of claims 1 to 12, wherein the temperature control module is a microprocessor, a field programmable gate array, or a complex programmable logic device.
14. 14. A charging system, comprising the temperature control system for the device according to any one of claims 1 to 13. 15
15. 15. A temperature control method, comprising: obtaining a temperature at a current moment of a device; obtaining a predicted temperature at a next moment based on the temperature at the current moment and a temperature prediction model; and outputting a temperature adjustment instruction to adjust a temperature of the device based 20 on the predicted temperature at the next moment and a temperature threshold, wherein the outputting the temperature adjustment instruction to adjust the temperature of the device based on the predicted temperature at the next moment and the temperature threshold comprises: outputting the temperature adjustment instruction to decrease the temperature of the device, 25 if it is determined that the predicted temperature at the next moment is greater than the temperature threshold and a first difference obtained by subtracting the temperature threshold from the predicted temperature at the next moment is greater than a first threshold; and outputting the temperature adjustment instruction to increase the temperature of the device, if it is determined that the predicted temperature at the next moment is less than the temperature 30 threshold and a second difference obtained by subtracting the predicted temperature at the next moment from the temperature threshold is greater than a second threshold.
16. 16. The method according to claim 15, wherein the temperature prediction model is obtained by self-learning based on historical temperature data.
17. 17. The method according to claim 15, wherein the temperature prediction model is pre- 26 obtained.
18. 18. The method according to claim 15, wherein the temperature prediction model is obtained by training based on historical temperature training data, comprising: obtaining the historical temperature training data; 5 obtaining the temperature prediction model by training based on the historical temperature training data and an initial model.
19. 19. An electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor is configured to execute the computer program to implement the steps of the method according to any one of claims 15 to 18.

Description

1 TEMPERATURE CONTROL SYSTEM FOR DEVICE AND TEMPERATURE CONTROL METHOD TECHNICAL FIELD 5 [0001] The present disclosure relates to the technical field of electrical equipment, and particularly to a temperature control system for a device and a temperature control method. BACKGROUND [0002] As well known, a power supply device generates heat when supplying power 1 o to a load. In order to avoid the abnormal operation and reduction of service life of the power supply device caused by temperature rise, heat dissipation measures will be taken for the power supply device. [0003] In the prior art, the temperature of the power supply device is obtained by a temperature acquisition device, and then the power supply device is cooled by means of 15 radiating fins, air-cooled or liquid-cooled radiators, etc. A sampling circuit of the temperature acquisition device is usually a thermistor, which generates different resistances depending on a temperature change, thus obtaining the temperature of the power supply device. However, when a large current flows through the thermistor, it usually affects the sampling precision of the thermistor, i.e., the thermistor cannot quickly sense the temperature change, 20 resulting in the obtained temperature of the power supply device being inaccurate, thus affecting the operation and the service life of the power supply device. SUMMARY [0004] In view of the problems in the prior art, embodiments of the present disclosure 25 provide a temperature control system for a device and a temperature control method, so as to at least partially solve the problems in the prior art. [0005] In an aspect, the present disclosure provides a temperature control system for a device, including a temperature detection module, a temperature control module and a temperature adjustment module. The temperature detection module is configured to detect 30 and obtain a temperature at a current moment of a device. The temperature control module is configured to obtain a predicted temperature at a next moment based on the temperature at the current moment and a temperature prediction model, and to output a temperature CA 03196722 2023- 4- 26 2 adjustment instruction to the temperature adjustment module based on the predicted temperature at the next moment and a temperature threshold. And the temperature adjustment module is configured to adjust a temperature of the device based on the temperature adjustment instruction. 5 [0006] In another aspect, the present disclosure provides a temperature control method, including: obtaining a temperature at a current moment of a device; [0007] obtaining a predicted temperature at a next moment based on the temperature at the current moment and a temperature prediction model; and [0008] outputting a temperature adjustment instruction to adjust a temperature of the 10 device based on the predicted temperature at the next moment and a temperature threshold. [0009] In still another aspect, the present disclosure provides an electronic device, including a memory, a processor and a computer program stored in the memory and executable on the processor. The processor is configured to execute the program, to implement the steps of the temperature control method according to any one of the above 15 embodiments. [0010] In yet another aspect, the present disclosure provides a computer-readable storing medium having a computer program. When being executed by a processor, the computer program implements the steps of the temperature control method according to any one of the above embodiments. 20 [0011] The temperature control system for the device and the temperature control method provided in the embodiments of the present disclosure include a temperature detection module, a temperature control module and a temperature adjustment module. The temperature detection module is configured to detect and obtain the temperature at the current moment of the device. The temperature control module is configured to obtain the 25 predicted temperature at the next moment based on the temperature at the current moment and the temperature prediction model, and to output a temperature adjustment instruction to the temperature adjustment module based on the predicted temperature at the next moment and a temperature threshold. The temperature adjustment module is configured to adjust the temperature of the device based on the temperature adjustment instruction, so as to improve 30 the temperature stability of the device during operation, thereby ensuring the electric energy conversion efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS CA 03196722 2023- 4- 26 3 [0012] For a clearer illustration of technical features in the embodiments of the present disclosure, a brief description of the drawings for the embodiments will be given below. Obviously, the drawings described below involve only some embodiments of this disclosure. For those of ordinary skill in the art, other drawings can be derived from t