Control method of temperature adjusting device, electronic equipment and storage medium

Abstract

The invention provides a control method of a temperature adjusting device, electronic equipment and a storage medium. The method comprises the steps of obtaining a working mode of the temperature adjusting device and operation parameters in the working mode; determining a voltage parameter according to the working mode and the operation parameter; according to the invention, the control precision and the reaction speed of the temperature adjusting device for the temperature are improved, the condensation phenomenon of the temperature adjusting device is avoided, the great fluctuation of the temperature is reduced, and the performance requirement and the reliability of the temperature adjusting device are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of semiconductor devices, and in particular to a control method for a temperature regulating device, an electronic device, and a storage medium. Background Art

[0002] In related technologies, the TEC (Thermoe lectric cooler) is controlled to cool or heat at a fixed voltage based on the chip junction temperature. The cold surface temperature and dew point temperature of the TEC during cooling cannot be obtained, nor can the operating voltage of the TEC during heating be adjusted in real time. Consequently, it is impossible to ensure that the cold surface temperature of the TEC during cooling is always higher than the dew point temperature, resulting in condensation. Furthermore, the heating power applied to the chip during heating cannot be adjusted in real time. If the chip junction temperature changes dramatically, the low-temperature tracking sensitivity becomes unstable, affecting product performance and reliability. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, one object of the present invention is to propose a control method for a temperature control device, which not only improves the control accuracy and response speed of the temperature control device to the temperature, but also avoids condensation in the temperature control device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature control device.

[0005] To this end, a second object of the present invention is to provide an electronic device.

[0006] To this end, a third object of the present invention is to provide a computer-readable storage medium.

[0007] To this end, a fourth object of the present invention is to provide a computer program product.

[0008] In order to achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a control method for a temperature control device, the method comprising: obtaining the working mode of the temperature control device and the operating parameters under the working mode; determining voltage parameters according to the working mode and the operating parameters; and controlling the temperature control device to operate in the working mode according to the voltage parameters.

[0009] According to the control method of the temperature regulating device of an embodiment of the present invention, by obtaining the working mode of the temperature regulating device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature regulating device is dynamically adjusted according to the voltage parameters. This not only improves the control accuracy and response speed of the temperature regulating device for temperature, but also avoids condensation in the temperature regulating device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature regulating device.

[0010] In some embodiments, the operating parameters include the cold surface temperature, the voltage parameters include the refrigeration voltage, and the voltage parameters are determined according to the working mode and the operating parameters, including: in the refrigeration mode, determining the dew point temperature of the temperature regulating device according to the operating parameters; determining the refrigeration regulating voltage of the temperature regulating device according to the cold surface temperature and the dew point temperature; determining the refrigeration voltage according to the refrigeration regulating voltage and / or the refrigeration voltage threshold.

[0011] In some embodiments, determining the refrigeration regulation voltage of the temperature regulation device according to the cold surface temperature and the dew point temperature includes: determining a first temperature sum value of the dew point temperature and a first reference temperature threshold, and a second temperature sum value of the dew point temperature and a second reference temperature threshold, wherein the second reference temperature threshold is greater than the first reference temperature threshold; when the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature sum value, determining a first refrigeration regulation voltage according to the initial refrigeration voltage and a first regulation parameter of the temperature regulation device; when the cold surface temperature is greater than the second temperature sum value, determining a second refrigeration regulation voltage according to the initial refrigeration voltage and the second regulation parameter.

[0012] In some embodiments, the refrigeration regulation voltage includes a first refrigeration regulation voltage, the refrigeration voltage threshold includes a first refrigeration voltage threshold, and the refrigeration voltage is determined based on the refrigeration regulation voltage and / or the refrigeration voltage threshold, including: when the first refrigeration regulation voltage is greater than or equal to the first refrigeration voltage threshold, the first refrigeration regulation voltage is determined as the refrigeration voltage.

[0013] In some embodiments, the refrigeration regulating voltage includes a second refrigeration regulating voltage, the refrigeration voltage threshold includes a second refrigeration voltage threshold, and the refrigeration voltage is determined based on the refrigeration regulating voltage and / or the refrigeration voltage threshold, including: when the second refrigeration regulating voltage is less than or equal to the second refrigeration voltage threshold, the second refrigeration regulating voltage is determined as the refrigeration voltage; when the second refrigeration regulating voltage is greater than the second refrigeration voltage threshold, the second refrigeration voltage threshold is determined as the refrigeration voltage, wherein the first refrigeration voltage threshold is less than the second refrigeration voltage threshold.

[0014] In some embodiments, after determining the dew point temperature of the temperature control device according to the operating parameters and before determining the refrigeration adjustment voltage of the temperature control device according to the cold surface temperature and the dew point temperature, it also includes: determining the first temperature sum of the dew point temperature and the first reference temperature threshold; when the cold surface temperature is greater than the first temperature sum, determining that the temperature control device meets the anti-condensation conditions.

[0015] In some embodiments, after determining the first temperature and value of the dew point temperature and the first reference temperature threshold, it also includes: when the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature and value, and the temperature adjustment device is turned on, determining that the temperature adjustment device meets the anti-condensation condition.

[0016] In some embodiments, the operating parameters include ambient temperature and ambient humidity. When determining the dew point temperature of the temperature regulating device according to the operating parameters, the ambient temperature and the ambient humidity are substituted into the following formula: , in, is the dew point temperature, is the first preset heat dissipation parameter, is the ambient humidity, is the second preset heat dissipation parameter, is the ambient temperature.

[0017] In some embodiments, the voltage parameters include a heating voltage, and the voltage parameters are determined according to the working mode and the operating parameters, including: in the heating mode, determining the junction temperature change rate of the temperature regulating device according to the operating parameters; determining the heating regulation voltage of the temperature regulating device according to the junction temperature change rate and a preset junction temperature change rate; determining the heating voltage according to the heating regulation voltage and / or the heating voltage threshold.

[0018] In some embodiments, the heating regulation voltage of the temperature regulation device is determined based on the junction temperature change rate and the preset junction temperature change rate, including: when the junction temperature change rate is less than the first preset junction temperature change rate, determining the first heating regulation voltage based on the initial heating voltage and the third regulation parameter of the temperature regulation device; when the junction temperature change rate is greater than the second preset junction temperature change rate, determining the second heating regulation voltage based on the initial heating voltage and the fourth regulation parameter.

[0019] In some embodiments, the heating regulation voltage includes a first heating regulation voltage, the heating voltage threshold includes a first heating voltage threshold, and the heating voltage is determined according to the heating regulation voltage and / or the heating voltage threshold, including: when the first heating regulation voltage is less than or equal to the first heating voltage threshold, determining the first heating regulation voltage as the heating voltage; when the first heating regulation voltage is greater than the first heating voltage threshold, determining the first heating voltage threshold as the heating voltage.

[0020] In some embodiments, the heating regulation voltage includes a second heating regulation voltage, the heating voltage threshold includes a second heating voltage threshold, and the heating voltage is determined according to the heating regulation voltage and / or the heating voltage threshold, including: when the second heating regulation voltage is greater than or equal to the second heating voltage threshold, determining the second heating regulation voltage as the heating voltage; when the second heating regulation voltage is less than the second heating voltage threshold, determining the second heating voltage threshold as the heating voltage, wherein the first heating voltage threshold is greater than the second heating voltage threshold.

[0021] In some embodiments, obtaining the working mode of the temperature regulating device includes: obtaining a junction temperature parameter of the temperature regulating device; when the junction temperature parameter is less than or equal to a first temperature threshold, determining that the temperature regulating device is in a heating mode, or when the junction temperature parameter is greater than or equal to a second temperature threshold, determining that the temperature regulating device is in a cooling mode, wherein the first temperature threshold is less than the second temperature threshold.

[0022] In order to achieve the above-mentioned purpose, an embodiment of the second aspect of the present invention proposes an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a control program for a temperature regulating device that can be executed by the at least one processor, and when the control program for the temperature regulating device is executed by the at least one processor, the at least one processor executes the control method for the temperature regulating device described in the above-mentioned embodiment.

[0023] According to an electronic device of an embodiment of the present invention, by obtaining the working mode of the temperature control device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature control device is dynamically adjusted according to the voltage parameters. This not only improves the temperature control accuracy and response speed of the temperature control device, but also avoids condensation in the temperature control device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature control device.

[0024] In order to achieve the above-mentioned purpose, an embodiment of the third aspect of the present invention proposes a computer-readable storage medium, on which a control program of a temperature control device is stored. When the control program of the temperature control device is executed by a processor, the control method of the temperature control device described in the above-mentioned embodiment is implemented.

[0025] In order to achieve the above-mentioned object, an embodiment of the fourth aspect of the present invention provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the control method of the temperature adjustment device described in the above-mentioned embodiment.

[0026] According to the computer program product of an embodiment of the present invention, by obtaining the working mode of the temperature control device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature control device is dynamically adjusted according to the voltage parameters. This not only improves the temperature control accuracy and response speed of the temperature control device, but also avoids condensation in the temperature control device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature control device.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 is a flow chart of a method for controlling a temperature regulating device according to one embodiment of the present invention; Figure 2 is a flow chart for determining a refrigeration voltage of a temperature regulating device according to one embodiment of the present invention; Figure 3 is a flow chart for determining an anti-condensation condition of a temperature regulating device according to one embodiment of the present invention; Figure 4 is a flow chart for determining a heating voltage of a temperature regulating device according to one embodiment of the present invention; Figure 5 is a flow chart for determining an operating mode of a temperature regulating device according to one embodiment of the present invention; Figure 6 is a flow chart of a method for controlling a temperature regulating device according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0029] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0030] With the rapid development of vehicle intelligence, smart cockpits have entered a new stage of multi-mode interaction, multi-screen integration, and active interaction, moving from a distributed architecture to a centralized domain control architecture. The computing power demand for domain controllers continues to increase, and with it, the heat flux density of on-board chips continues to increase. TEC technology, with its advantages of high temperature control accuracy, fast response speed, no need for refrigerants, and no noise / vibration, has become an important solution for local active heat dissipation of high-heat flux density chips on vehicles. However, due to the relatively strict testing standards for on-board products, in high temperature and high humidity environments, the cold surface temperature of the TEC during cooling is prone to fall below the dew point temperature, and water vapor in the humid hot air condenses on the TEC cold surface to form condensation. In low-temperature environments, the chip junction temperature changes sharply during TEC heating, resulting in unstable low-temperature tracking sensitivity, affecting product performance and reliability.

[0031] In the existing domain controller's TEC control method, it is generally only possible to control TEC cooling or heating at a fixed voltage based on the chip junction temperature. The cold surface temperature and dew point temperature of the TEC during cooling cannot be obtained, nor can the operating voltage of the TEC during heating be adjusted in real time. Therefore, it is impossible to ensure that the cold surface temperature of the TEC during cooling is always higher than the dew point temperature, nor can the heating power applied to the chip during heating be adjusted in real time. Therefore, it is impossible to avoid condensation during TEC cooling, nor can the rate of change of the chip junction temperature during heating be controlled, which cannot meet the requirements of product performance and reliability.

[0032] The following combination Figures 1-6 The control method of the temperature regulating device according to the embodiment of the present invention is described, taking the temperature regulating device as a TEC as an example for illustration.

[0033] like Figure 1 As shown, the control method of the temperature regulating device according to the embodiment of the present invention at least includes steps S1 to S3.

[0034] Step S1, obtaining the working mode of the temperature regulating device and the operating parameters under the working mode.

[0035] In an embodiment, the working mode of the temperature control device is obtained, specifically including heating mode, cooling mode and off mode. Under different working modes, the corresponding operating parameters are also different, including but not limited to the cold surface temperature of the temperature control device. By obtaining the working mode and operating parameters, the working type and real-time working status of the temperature control device can be determined.

[0036] Step S2: determining voltage parameters according to the working mode and operating parameters.

[0037] The voltage parameter is the voltage requirement or output characteristic of the temperature control device in different working modes, which varies with the working mode and the real-time changing operating parameters.

[0038] In an embodiment, after determining the working mode, by real-time monitoring of the operating parameters under different modes, the switch state of the temperature control device during operation is judged based on the difference between the operating parameters and the preset threshold value and the corresponding voltage parameters are automatically determined. The determined voltage parameters can meet the cooling and heating requirements of the temperature control device.

[0039] Step S3: controlling the temperature adjustment device to operate in the working mode according to the voltage parameter.

[0040] In an embodiment, after determining the voltage parameters, the temperature regulating device is controlled to operate in different working modes according to the voltage parameters, and the real-time temperature parameters of its built-in temperature sensor are read. According to the size relationship between the real-time temperature parameters and the shutdown temperature thresholds corresponding to different working modes, the values of the voltage parameters are continuously adjusted until the temperature parameters meet the shutdown temperature thresholds. The current direction and size of the temperature regulating device are adjusted according to the real-time feedback voltage parameters, so that high-precision temperature control can be achieved.

[0041] According to the control method of the temperature regulating device of an embodiment of the present invention, by obtaining the working mode of the temperature regulating device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature regulating device is dynamically adjusted according to the voltage parameters. This not only improves the control accuracy and response speed of the temperature regulating device for temperature, but also avoids condensation in the temperature regulating device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature regulating device.

[0042] In some embodiments, the operating parameters include the cold surface temperature, the voltage parameters include the refrigeration voltage, and the voltage parameters are determined according to the working mode and the operating parameters, including: in the refrigeration mode, determining the dew point temperature of the temperature regulating device according to the operating parameters; determining the refrigeration regulating voltage of the temperature regulating device according to the cold surface temperature and the dew point temperature; determining the refrigeration voltage according to the refrigeration regulating voltage and / or the refrigeration voltage threshold.

[0043] In an embodiment, in cooling mode, the MCU obtains cooling mode operating parameters, such as ambient temperature and humidity, and calculates the dew point temperature of the temperature control device. Simultaneously, a temperature sensor is placed on the TEC cold surface. The MCU reads the real-time cold surface temperature detected by the cold surface temperature sensor, for example, as Tc, and reports it to the SOC. The SOC calculates the cold surface temperature Tcmin = Tc - ΔTavg. For example, during the product testing phase, multiple thermocouples are placed in areas of the TEC cold surface in contact with air, such as the four corners and edges. Under the TEC's maximum load condition, the difference ΔT between the real-time cold surface temperature Tc detected by the temperature sensor and the lowest temperature value Tmin reported by the thermocouples is calculated. Ten TEC samples are subjected to the above test, and the average value ΔTavg of the difference ΔT between the real-time temperature Tc and the lowest temperature value Tmin reported by the thermocouples is obtained and transmitted back to the MCU.

[0044] The MCU determines whether the TEC is on. If not, it issues the "TEC cooling voltage Vc = Vc0" command, where Vc0 is the preset TEC cooling voltage. If the TEC is on, the TEC's cooling voltage is determined based on the relationship between the cooling surface temperature and the dew point temperature. The cooling voltage is also determined based on the relationship between the cooling voltage and the cooling voltage threshold. If the difference between the cooling surface temperature and the dew point temperature is small, the cooling voltage is determined based solely on the initial cooling voltage.

[0045] The temperature control device TEC is controlled to operate in the cooling mode according to the cooling voltage, and the maximum temperature of its built-in temperature sensor is read as the cooling junction temperature parameter Th of the SOC, and this temperature value is sent to the MCU; the MCU determines whether the cooling junction temperature parameter is less than the shutdown temperature threshold Thd of the TEC cooling mode. If the cooling junction temperature parameter is less than the shutdown temperature threshold of the TEC cooling mode, that is, Th<Thd, the MCU sends a "TEC shutdown" command to control the temperature control device TEC to shut down; if the cooling junction temperature parameter chip temperature is greater than or equal to the shutdown temperature threshold of the TEC cooling mode, that is, Th≥Thd, the cooling voltage is re-determined until the TEC is shut down.

[0046] By real-time monitoring of the cold surface temperature and dew point temperature during TEC cooling, the on / off state of the TEC cooling process is determined based on the difference between the two and the TEC cooling voltage is adjusted. This ensures that the cold surface temperature of the TEC during cooling is always higher than the dew point temperature. This maximizes the cooling capacity of the TEC while ensuring that condensation does not occur during TEC cooling.

[0047] In some embodiments, determining the refrigeration regulation voltage of the temperature regulation device according to the cold surface temperature and the dew point temperature includes: determining a first temperature sum value of the dew point temperature and a first reference temperature threshold, and a second temperature sum value of the dew point temperature and a second reference temperature threshold, wherein the second reference temperature threshold is greater than the first reference temperature threshold; when the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature sum value, determining the first refrigeration regulation voltage according to the initial refrigeration voltage and the first regulation parameter of the temperature regulation device; when the cold surface temperature is greater than the second temperature sum value, determining the second refrigeration regulation voltage according to the initial refrigeration voltage and the second regulation parameter.

[0048] In an embodiment, Figure 2 As shown, a first temperature sum value of the dew point temperature and the first reference temperature threshold, namely Td+X, and a second temperature sum value of the dew point temperature and the second reference temperature threshold, namely Td+Y, are determined, wherein the first reference temperature threshold and the second reference temperature threshold are constants greater than 0, and the second reference temperature threshold is greater than the first reference temperature threshold, that is, Y>X>0.

[0049] If the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature sum value, that is, Td<Tcmin≤Td+X, the first refrigeration adjustment voltage Vc1 is determined according to the initial refrigeration voltage Vc of the temperature adjustment device and the first adjustment parameter α. For example, the initial refrigeration voltage is lowered to the first refrigeration adjustment voltage. The calculation formula is Vc1=Vc×(1-α), where 0<α<1.

[0050] If the cold surface temperature is greater than the second temperature sum value, that is, Tcmin>Td+Y, the second refrigeration adjustment voltage Vc2 is determined according to the initial refrigeration voltage Vc and the second adjustment parameter β. For example, the initial refrigeration voltage is increased to the second adjustment voltage. The calculation formula is Vc2=Vc×(1+β), where 0<β<1.

[0051] If the cold surface temperature is between the first temperature sum value and the second temperature sum value, that is, Td+X<Tcmin≤Td+Y, the MCU determines the initial cooling voltage as the cooling adjustment voltage and directly outputs it as the cooling voltage, that is, the cooling voltage remains unchanged.

[0052] In some embodiments, the refrigeration regulation voltage includes a first refrigeration regulation voltage, the refrigeration voltage threshold includes a first refrigeration voltage threshold, and the refrigeration voltage is determined based on the refrigeration regulation voltage and / or the refrigeration voltage threshold, including: when the first refrigeration regulation voltage is greater than or equal to the first refrigeration voltage threshold, the first refrigeration regulation voltage is determined as the refrigeration voltage.

[0053] In an embodiment, after determining the first refrigeration adjustment voltage, if the first refrigeration adjustment voltage is greater than or equal to the first refrigeration voltage threshold, that is, Vc1 ≥ Vcmin, the MCU issues an instruction to determine the first refrigeration adjustment voltage as the refrigeration voltage; if the first refrigeration adjustment voltage is less than or equal to the first refrigeration voltage threshold, that is, Vc1 < Vcmin, Vc1 is less than Vcmin, the MCU issues a "TEC off" instruction.

[0054] In some embodiments, the refrigeration regulation voltage includes a second refrigeration regulation voltage, the refrigeration voltage threshold includes a second refrigeration voltage threshold, and the refrigeration voltage is determined based on the refrigeration regulation voltage and / or the refrigeration voltage threshold, including: when the second refrigeration regulation voltage is less than or equal to the second refrigeration voltage threshold, the second refrigeration regulation voltage is determined as the refrigeration voltage; when the second refrigeration regulation voltage is greater than the second refrigeration voltage threshold, the second refrigeration voltage threshold is determined as the refrigeration voltage, wherein the first refrigeration voltage threshold is less than the second refrigeration voltage threshold.

[0055] In an embodiment, after determining the second refrigeration adjustment voltage, if the second refrigeration adjustment voltage is less than or equal to the second refrigeration voltage threshold, that is, Vc2≤Vcmax, the MCU issues an instruction to determine the second refrigeration adjustment voltage as the refrigeration voltage; if the second refrigeration adjustment voltage is greater than the second refrigeration voltage threshold, that is, Vc2>Vcmax, the MCU issues an instruction to determine the second refrigeration voltage threshold as the refrigeration voltage.

[0056] In some embodiments, after determining the dew point temperature of the temperature regulating device according to the operating parameters and before determining the refrigeration regulating voltage of the temperature regulating device according to the cold surface temperature and the dew point temperature, it also includes: determining the first temperature sum of the dew point temperature and the first reference temperature threshold; when the cold surface temperature is greater than the first temperature sum, determining that the temperature regulating device meets the anti-condensation conditions.

[0057] In an embodiment, Figure 3 As shown, the first temperature sum of the dew point temperature and the first reference temperature threshold, that is, Td+X, is determined. If the cold surface temperature is greater than the first temperature sum, that is, Tcmin>Td+X, the MCU issues an "anti-condensation test passed" instruction to determine that the temperature adjustment device meets the anti-condensation condition.

[0058] In some embodiments, after determining the dew point temperature and the first temperature sum of the first reference temperature threshold, it also includes: when the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature sum, and the temperature adjustment device is turned on, determining that the temperature adjustment device meets the anti-condensation condition.

[0059] In an embodiment, if the cold surface temperature is less than or equal to the first temperature sum value, that is, Tcmin≤Td+X, it is determined whether the cold surface temperature is greater than the dew point temperature. If the cold surface temperature is greater than the dew point temperature, that is, Td<Tcmin≤Td+X, it is determined whether the TEC is turned on. If the TEC is turned on, the MCU sends an "anti-condensation detection passed" instruction to determine that the temperature adjustment device meets the anti-condensation condition; if the cold surface temperature is less than or equal to the dew point temperature, that is, Tcmin≤Td, or the TEC is not turned on, the MCU sends an "anti-condensation detection failed" instruction to determine that the temperature adjustment device does not meet the anti-condensation condition, and controls the TEC to remain in the closed state.

[0060] In some embodiments, the operating parameters include ambient temperature and ambient humidity. When determining the dew point temperature of the temperature regulating device based on the operating parameters, the ambient temperature and ambient humidity are substituted into the following formula: , in, is the dew point temperature, is the first preset heat dissipation parameter, is the ambient humidity, is the second preset heat dissipation parameter, is the ambient temperature.

[0061] In an embodiment, a temperature sensor and a humidity sensor are placed on the PCB (Printed Circuit Board) at the air inlet of the domain controller. The ambient temperature and humidity are read by the MCU and reported to the SOC, and substituted into the dew point temperature calculation formula. The first preset heat dissipation parameter and the second preset heat dissipation parameter in the calculation formula are constants. The first preset heat dissipation parameter can take a value of 237.7, and the second preset heat dissipation parameter can take a value of 17.27. The dew point temperature is calculated and then sent back to the MCU.

[0062] In some embodiments, the voltage parameters include a heating voltage, and the voltage parameters are determined according to the working mode and the operating parameters, including: in the heating mode, determining the junction temperature change rate of the temperature regulating device according to the operating parameters; determining the heating regulation voltage of the temperature regulating device according to the junction temperature change rate and a preset junction temperature change rate; determining the heating voltage according to the heating regulation voltage and / or the heating voltage threshold.

[0063] In the embodiment, in the heating mode, the MCU reads the junction temperature parameter Tv1 at time t1 and the junction temperature parameter Tv2 at time t2, and reports them to the SOC; the SOC calculates the junction temperature change rate v=(Tv2-Tv1) / (t2-t1) and sends it back to the MCU.

[0064] The MCU determines whether this is the first time the TEC has started heating mode. If this is the first time the TEC has started heating mode and there is no junction temperature change rate, the MCU issues the "TEC heating voltage Vh = Vh0" command, where Vh0 is the preset TEC heating voltage. If this is not the first time the TEC has started heating mode, the heating adjustment voltage of the temperature control device TEC is determined based on the relationship between the junction temperature change rate and the preset junction temperature change rate, and the heating voltage is determined based on the relationship between the heating adjustment voltage and the heating voltage threshold. If the difference between the junction temperature change rate and the preset junction temperature change rate is small, the heating voltage is determined based solely on the initial heating voltage.

[0065] The temperature control device TEC is controlled to operate in the heating mode according to the heating voltage, and the maximum temperature of its built-in temperature sensor is read as the heating junction temperature parameter Tl of the SOC, and this temperature value is sent to the MCU; the MCU determines whether the heating junction temperature parameter is greater than the shutdown temperature threshold Tlu of the TEC heating mode. If the heating junction temperature parameter is greater than the shutdown temperature threshold of the TEC heating mode, that is, Tl>Tlu, the MCU sends a "TEC shutdown" command to control the temperature control device TEC to shut down; if the heating junction temperature parameter is less than or equal to the shutdown temperature threshold of the TEC heating mode, that is, Tl>Tlu, the heating voltage is re-determined until the TEC is shut down.

[0066] By calculating the junction temperature change rate of the TEC during heating in real time, the heating voltage of the TEC is automatically adjusted, thereby controlling the heating power applied to the chip, ensuring that the junction temperature change rate of the TEC during heating is within the required range and meeting product performance requirements.

[0067] In some embodiments, the heating regulation voltage of the temperature regulation device is determined based on the junction temperature change rate and the preset junction temperature change rate, including: when the junction temperature change rate is less than the first preset junction temperature change rate, the first heating regulation voltage is determined based on the initial heating voltage and the third regulation parameter of the temperature regulation device; when the junction temperature change rate is greater than the second preset junction temperature change rate, the second heating regulation voltage is determined based on the initial heating voltage and the fourth regulation parameter.

[0068] In an embodiment, Figure 4 As shown, if the junction temperature change rate is less than the first preset junction temperature change rate, that is, v<vmin, the first heating adjustment voltage Vh1 is determined according to the initial heating voltage Vh of the temperature adjustment device and the third adjustment parameter γ. For example, the initial heating voltage is increased to the first heating adjustment voltage. The calculation formula is Vh1=Vh×(1+γ), where 0<γ<1.

[0069] If the junction temperature change rate is greater than the second preset junction temperature change rate, that is, v>vmax, the second heating adjustment voltage Vh2 is determined according to the initial heating voltage Vh and the fourth adjustment parameter δ. For example, the initial heating voltage is lowered to the second heating adjustment voltage. The calculation formula is Vh2=Vh×(1-δ), where 0<δ<1.

[0070] If the junction temperature change rate is between the first preset junction temperature change rate and the second preset junction temperature change rate, that is, vmin<v<vmax, the MCU determines the initial heating voltage as the heating regulation voltage and directly outputs it as the heating voltage, that is, the heating voltage remains unchanged.

[0071] In some embodiments, the heating regulation voltage includes a first heating regulation voltage, the heating voltage threshold includes a first heating voltage threshold, and the heating voltage is determined based on the heating regulation voltage and / or the heating voltage threshold, including: when the first heating regulation voltage is less than or equal to the first heating voltage threshold, determining the first heating regulation voltage as the heating voltage; when the first heating regulation voltage is greater than the first heating voltage threshold, determining the first heating voltage threshold as the heating voltage.

[0072] In an embodiment, after determining the first heating regulation voltage, if the first heating regulation voltage is less than or equal to the first heating voltage threshold, that is, Vh1≤Vhmax, the MCU issues an instruction to determine the first heating regulation voltage as the heating voltage; if the first heating regulation voltage is greater than the first heating voltage threshold, that is, Vh1>Vhmax, the MCU issues an instruction to determine the first heating voltage threshold as the heating voltage, and reports an alarm: the junction temperature parameter change rate is low and the TEC heating voltage upper limit is low.

[0073] In some embodiments, the heating regulation voltage includes a second heating regulation voltage, the heating voltage threshold includes a second heating voltage threshold, and the heating voltage is determined based on the heating regulation voltage and / or the heating voltage threshold, including: when the second heating regulation voltage is greater than or equal to the second heating voltage threshold, determining the second heating regulation voltage as the heating voltage; when the second heating regulation voltage is less than the second heating voltage threshold, determining the second heating voltage threshold as the heating voltage, wherein the first heating voltage threshold is greater than the second heating voltage threshold.

[0074] In an embodiment, after determining the second heating regulation voltage, if the second heating regulation voltage is greater than or equal to the second heating voltage threshold, that is, Vh2 ≥ Vhmin, the MCU issues an instruction to determine the second heating regulation voltage as the heating voltage; if the second heating regulation voltage is less than the second heating voltage threshold, that is, Vh2 < Vhmin, the MCU issues an instruction to determine the second heating voltage threshold as the heating voltage, and reports an alarm: the junction temperature parameter change rate is high and the TEC heating voltage lower limit is too high.

[0075] In some embodiments, obtaining the working mode of the temperature regulating device includes: obtaining a junction temperature parameter of the temperature regulating device; when the junction temperature parameter is less than or equal to a first temperature threshold, determining that the temperature regulating device is in a heating mode, or when the junction temperature parameter is greater than or equal to a second temperature threshold, determining that the temperature regulating device is in a cooling mode, wherein the first temperature threshold is less than the second temperature threshold.

[0076] In an embodiment, Figure 5 As shown, the junction temperature parameters of the temperature control device are obtained. Taking a certain type of SOC (System on Chip) chip of a certain intelligent cockpit domain controller as an example, the SOC chip reads the maximum temperature of its built-in temperature sensor as the junction temperature parameter of the SOC chip, for example, recorded as T, and sends this temperature value to the MCU (Microcontroller Unit).

[0077] The MCU reads the junction temperature parameter sent by the SOC and issues the TEC working mode instruction according to the junction temperature parameter. If the signal transmission between the SOC and the MCU is abnormal and the MCU does not receive the junction temperature parameter information, the MCU controls the TEC to maintain the current working mode unchanged; if the junction temperature parameter is less than the first temperature threshold, that is, T<Tld, the MCU issues the TEC heating instruction, and it is determined that the temperature control device TEC is in the heating mode; if the junction temperature parameter is between the first temperature threshold and the second temperature threshold, that is, Tld≤T<Thu, the MCU issues the TEC shutdown instruction, and it is determined that the temperature control device TEC is in the shutdown mode; if the junction temperature parameter is greater than or equal to the second temperature threshold, that is, T≥Thu, the MCU issues the TEC cooling instruction, and it is determined that the temperature control device TEC is in the cooling mode.

[0078] Reference below Figure 6 The control method of the temperature regulating device according to the embodiment of the present invention is described with examples.

[0079] like Figure 6 As shown, the control method of the temperature adjustment device according to the embodiment of the present invention at least includes steps S11 to S46.

[0080] Step S11, obtaining the junction temperature parameter of the temperature adjustment device.

[0081] Step S12, determining whether the junction temperature parameter is greater than or equal to a second temperature threshold, if so, executing step S13; otherwise, executing step S32.

[0082] Step S13: determine whether the temperature adjustment device is in the cooling mode, and obtain operating parameters in the working mode including the cold surface temperature.

[0083] Step S14: determining the dew point temperature of the temperature regulating device according to the operating parameters.

[0084] Step S15 , determining a dew point temperature and a first temperature and value of a first reference temperature threshold.

[0085] Step S16, determining whether the cold surface temperature is greater than the first temperature value, if so, executing step S17; otherwise, executing step S18.

[0086] Step S17: determining whether the temperature adjustment device meets the anti-condensation condition.

[0087] Step S18, determining whether the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature value, and the temperature adjustment device is turned on, if so, execute step S17; otherwise, execute step S19.

[0088] Step S19: determining that the temperature adjustment device does not meet the anti-condensation condition.

[0089] Step S20 , determining a first temperature sum value of the dew point temperature and a first reference temperature threshold, and a second temperature sum value of the dew point temperature and a second reference temperature threshold.

[0090] Step S21, determining whether the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature sum value, if so, executing step S22; otherwise, executing step S23.

[0091] Step S22: determining a first cooling adjustment voltage according to the initial cooling voltage of the temperature adjustment device and a first adjustment parameter.

[0092] Step S23, determining whether the cold surface temperature is greater than the second temperature sum value, if so, executing step S24; otherwise, executing step S25.

[0093] Step S24: determining a second cooling adjustment voltage according to the initial cooling voltage and the second adjustment parameter.

[0094] Step S25: determining the cooling voltage according to the preset cooling voltage.

[0095] Step S26, determining whether the first cooling adjustment voltage is greater than or equal to the first cooling voltage threshold, if so, executing step S27; otherwise, executing step S28.

[0096] Step S27: determining the first cooling adjustment voltage as the cooling voltage.

[0097] Step S28: The temperature regulating device is set to be in the off mode.

[0098] Step S29, determining whether the second cooling adjustment voltage is less than or equal to the second cooling voltage threshold, if so, executing step S30; otherwise, executing step S31.

[0099] Step S30: determining the second cooling adjustment voltage as the cooling voltage.

[0100] Step S31: determining the second cooling voltage threshold as the cooling voltage.

[0101] Step S32, determining whether the junction temperature parameter is less than or equal to a first temperature threshold; if so, executing step S34; otherwise, executing step S33.

[0102] Step S33: Determine whether the temperature adjustment device is in the off mode.

[0103] Step S34: determine whether the temperature adjustment device is in the heating mode, and obtain the operating parameters in the working mode.

[0104] Step S35 , determining the junction temperature change rate of the temperature adjustment device according to the operating parameters.

[0105] Step S36, determining whether the junction temperature change rate is less than a first preset junction temperature change rate, if so, executing step S37; otherwise, executing step S38.

[0106] Step S37 : determining a first heating regulating voltage according to the initial heating voltage of the temperature regulating device and the third regulating parameter.

[0107] Step S38, determining whether the junction temperature change rate is greater than a second preset junction temperature change rate, if so, executing step S39; otherwise, executing step S40.

[0108] Step S39: determining a second heating adjustment voltage according to the initial heating voltage and the fourth adjustment parameter.

[0109] Step S40: determining the heating voltage according to the preset heating voltage.

[0110] In step S41 , it is determined whether the first heating adjustment voltage is less than or equal to the first heating voltage threshold. If so, step S42 is executed; otherwise, step S43 is executed.

[0111] Step S42: determining the first heating adjustment voltage as the heating voltage.

[0112] Step S43: determining the first heating voltage threshold as the heating voltage.

[0113] Step S44 , determining whether the second heating adjustment voltage is greater than or equal to the second heating voltage threshold; if so, executing step S45 ; otherwise, executing step S46 .

[0114] Step S45: determining the second heating adjustment voltage as the heating voltage.

[0115] Step S46: determining the second heating voltage threshold as the heating voltage.

[0116] According to the control method of the temperature regulating device of an embodiment of the present invention, by obtaining the working mode of the temperature regulating device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature regulating device is dynamically adjusted according to the voltage parameters. This not only improves the control accuracy and response speed of the temperature regulating device for temperature, but also avoids condensation in the temperature regulating device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature regulating device.

[0117] The electronic device according to the embodiment of the present invention is described below.

[0118] An electronic device according to an embodiment of the present invention includes: at least one processor; and a memory connected to the at least one processor; wherein the memory stores a control program for a temperature regulating device that can be executed by the at least one processor, and when the control program for the temperature regulating device is executed by the at least one processor, the at least one processor executes the control method for the temperature regulating device according to the above embodiment.

[0119] According to an electronic device of an embodiment of the present invention, by obtaining the working mode of the temperature control device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature control device is dynamically adjusted according to the voltage parameters. This not only improves the temperature control accuracy and response speed of the temperature control device, but also avoids condensation in the temperature control device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature control device.

[0120] The following describes a computer-readable storage medium according to an embodiment of the present invention.

[0121] The computer-readable storage medium of the embodiment of the present invention stores a control program for the temperature regulating device. When the control program for the temperature regulating device is executed by a processor, the control method for the temperature regulating device of the above embodiment is implemented.

[0122] The following describes a computer program product according to an embodiment of the present invention.

[0123] The computer program product of the embodiment of the present invention includes a computer program, and when the computer program is executed by a processor, the control method of the temperature adjustment device of the above embodiment is implemented.

[0124] According to the computer program product of an embodiment of the present invention, by obtaining the working mode of the temperature control device and the operating parameters under the working mode, the corresponding voltage parameters are quickly determined based on the real-time changing operating parameters, and the working state of the temperature control device is dynamically adjusted according to the voltage parameters. This not only improves the temperature control accuracy and response speed of the temperature control device, but also avoids condensation in the temperature control device, reduces large temperature fluctuations, and ensures the performance requirements and reliability of the temperature control device.

[0125] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0126] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A method for controlling a temperature regulating device, characterized in that: include: Obtaining the operating mode of the temperature regulating device and operating parameters under the operating mode; determining a voltage parameter according to the working mode and the operating parameter; The temperature regulating device is controlled to operate in the operating mode according to the voltage parameter.

2. The control method of the temperature adjustment device according to claim 1, characterized in that: The operating parameters include the cold surface temperature, the voltage parameters include the refrigeration voltage, and determining the voltage parameters according to the working mode and the operating parameters includes: In cooling mode, determining the dew point temperature of the temperature regulating device according to the operating parameters; determining a refrigeration adjustment voltage of the temperature adjustment device according to the cold surface temperature and the dew point temperature; The refrigeration voltage is determined according to the refrigeration adjustment voltage and / or the refrigeration voltage threshold.

3. The control method of the temperature regulating device according to claim 2, characterized in that: Determining the refrigeration adjustment voltage of the temperature adjustment device according to the cold surface temperature and the dew point temperature includes: determining a first temperature sum of the dew point temperature and a first reference temperature threshold, and a second temperature sum of the dew point temperature and a second reference temperature threshold, wherein the second reference temperature threshold is greater than the first reference temperature threshold; When the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature and value, determining a first refrigeration adjustment voltage according to the initial refrigeration voltage and the first adjustment parameter of the temperature adjustment device; The cold surface temperature is greater than the second temperature and value, and a second cooling adjustment voltage is determined according to the initial cooling voltage and the second adjustment parameter.

4. The control method of the temperature regulating device according to claim 2 or 3, characterized in that: The refrigeration regulating voltage includes a first refrigeration regulating voltage, the refrigeration voltage threshold includes a first refrigeration voltage threshold, and determining the refrigeration voltage according to the refrigeration regulating voltage and / or the refrigeration voltage threshold includes: When the first refrigeration adjustment voltage is greater than or equal to the first refrigeration voltage threshold, the first refrigeration adjustment voltage is determined as the refrigeration voltage.

5. The control method of the temperature regulating device according to claim 2 or 4, characterized in that: The refrigeration regulating voltage includes a second refrigeration regulating voltage, the refrigeration voltage threshold includes a second refrigeration voltage threshold, and determining the refrigeration voltage according to the refrigeration regulating voltage and / or the refrigeration voltage threshold includes: When the second refrigeration adjustment voltage is less than or equal to the second refrigeration voltage threshold, determining the second refrigeration adjustment voltage as the refrigeration voltage; When the second refrigeration adjustment voltage is greater than the second refrigeration voltage threshold, the second refrigeration voltage threshold is determined as the refrigeration voltage, wherein the first refrigeration voltage threshold is less than the second refrigeration voltage threshold.

6. The control method of the temperature regulating device according to claim 2, characterized in that: After determining the dew point temperature of the temperature regulating device according to the operating parameters and before determining the refrigeration regulating voltage of the temperature regulating device according to the cold surface temperature and the dew point temperature, the method further includes: determining a first temperature and a value of the dew point temperature and a first reference temperature threshold; When the cold surface temperature is greater than the first temperature sum value, it is determined that the temperature adjustment device meets the anti-condensation condition.

7. The control method of the temperature regulating device according to claim 6, characterized in that: After determining the dew point temperature and the first temperature and value of the first reference temperature threshold, the method further includes: When the cold surface temperature is greater than the dew point temperature and less than or equal to the first temperature sum value, and the temperature adjustment device is turned on, it is determined that the temperature adjustment device meets the anti-condensation condition.

8. The control method of the temperature adjustment device according to claim 2, characterized in that: The operating parameters include ambient temperature and ambient humidity. When determining the dew point temperature of the temperature regulating device according to the operating parameters, the ambient temperature and the ambient humidity are substituted into the following formula: ， in, is the dew point temperature, is the first preset heat dissipation parameter, is the ambient humidity, is the second preset heat dissipation parameter, is the ambient temperature.

9. The control method of the temperature adjustment device according to claim 1, characterized in that: The voltage parameter includes a heating voltage, and determining the voltage parameter according to the working mode and the operating parameter includes: In heating mode, determining a junction temperature change rate of the temperature regulating device according to the operating parameters; determining a heating regulation voltage of the temperature regulation device according to the junction temperature change rate and a preset junction temperature change rate; The heating voltage is determined according to the heating adjustment voltage and / or the heating voltage threshold.

10. The control method of the temperature adjustment device according to claim 9, characterized in that: Determining a heating regulation voltage of the temperature regulation device according to the junction temperature change rate and a preset junction temperature change rate includes: When the junction temperature change rate is less than a first preset junction temperature change rate, determining a first heating adjustment voltage according to the initial heating voltage of the temperature adjustment device and a third adjustment parameter; When the junction temperature change rate is greater than a second preset junction temperature change rate, a second heating adjustment voltage is determined according to the initial heating voltage and a fourth adjustment parameter.

11. The control method of a temperature regulating device according to claim 9 or 10, characterized in that: The heating regulating voltage includes a first heating regulating voltage, the heating voltage threshold includes a first heating voltage threshold, and determining the heating voltage according to the heating regulating voltage and / or the heating voltage threshold includes: When the first heating regulation voltage is less than or equal to the first heating voltage threshold, determining the first heating regulation voltage as the heating voltage; When the first heating adjustment voltage is greater than the first heating voltage threshold, the first heating voltage threshold is determined as the heating voltage.

12. The control method of the temperature adjustment device according to claim 9 or 11, characterized in that: The heating regulating voltage includes a second heating regulating voltage, the heating voltage threshold includes a second heating voltage threshold, and determining the heating voltage according to the heating regulating voltage and / or the heating voltage threshold includes: When the second heating regulation voltage is greater than or equal to the second heating voltage threshold, determining the second heating regulation voltage as the heating voltage; When the second heating adjustment voltage is less than the second heating voltage threshold, the second heating voltage threshold is determined as the heating voltage, wherein the first heating voltage threshold is greater than the second heating voltage threshold.

13. The control method of a temperature regulating device according to claim 1, wherein: Obtaining the operating mode of the temperature regulating device includes: Obtaining a junction temperature parameter of the temperature regulating device; When the junction temperature parameter is less than or equal to a first temperature threshold, it is determined that the temperature adjustment device is in a heating mode; or when the junction temperature parameter is greater than or equal to a second temperature threshold, it is determined that the temperature adjustment device is in a cooling mode, wherein the first temperature threshold is less than the second temperature threshold.

14. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores a control program for a temperature regulating device that can be executed by the at least one processor. When the control program for the temperature regulating device is executed by the at least one processor, the at least one processor executes the control method for a temperature regulating device according to any one of claims 1 to 13.

15. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a control program for a temperature regulating device, and when the control program for the temperature regulating device is executed by a processor, the control method for a temperature regulating device according to any one of claims 1 to 13 is implemented.

16. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the control method of the temperature regulating device according to any one of claims 1 to 13 is implemented.

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