Temperature control method and system for heating device in vehicle, and vehicle

Abstract

A temperature control method for a heating device in a vehicle. The heating device comprises a heating element (100), a temperature sensor (200), and a touch sensor (300) that are all connected to a temperature control system (400). The method comprises the following steps: receiving a current temperature of a heating element sent by a temperature sensor and a current sensing signal sent by a touch sensor; determining whether the current temperature is greater than a first preset threshold; on the basis of the current sensing signal, determining whether a heating device is touched; and when the current temperature is greater than the first preset threshold and the heating device is touched, sending a first control signal to the heating element, so as to control the heating element to cool. Further provided are a temperature control system for a heating device in a vehicle, a temperature control system for executing the temperature control method, and a vehicle comprising a temperature control system. By using the method and the system, when the current temperature exceeds the first preset threshold and the heating device is touched, the heating element is controlled to cool, so that the scald of a passenger caused by long-time contact with the heating device can be avoided.

Description

Temperature control method and system for heating device inside vehicle, vehicle

[0001] This application is based on and claims priority to the Chinese patent application with Chinese application number 202311436404.0 and application date October 31, 2023. The disclosed content of the Chinese patent application is hereby introduced as a whole into this application. Technical Field

[0002] The present invention relates to the field of vehicle heating devices, and more particularly to a temperature control method and system for a heating device inside a vehicle. In addition, the present invention also relates to a vehicle with a temperature control system. Background Art

[0003] In order to achieve rapid heating in the car in winter, a heating device is usually installed inside the vehicle. Unlike conventional air heating devices, the heating device can generate heat through heating and transfer the heat outward (for example, through thermal radiation or conductive heat transfer), so that the temperature inside the car rises rapidly and improves the comfort of the occupants (including the driver and passengers).

[0004] However, existing heating devices cannot achieve intelligent temperature control. When the temperature of the heating device is too high (for example, exceeding 43°C), if the occupants touch the surface of the heating device for a long time, burns may occur.

[0005] Summary of the Invention

[0006] The object of the present invention is to provide a temperature control method and system for a heating device inside a vehicle, and a vehicle with a temperature control system, so as to prevent passengers from being burned when in contact with the heating device for a long time.

[0007] Based on the above objectives, the present invention provides, on one hand, a temperature control method for a heating device inside a vehicle, wherein the heating device includes a heating element, a temperature sensor, and a touch sensor, wherein the heating element, the temperature sensor, and the touch sensor are all connected to a temperature control system, wherein the temperature sensor is used to monitor the current temperature of the heating element, and the touch sensor is used to sense whether the heating device is touched. The temperature control method is applied to the temperature control system or can be executed by the temperature control system, and the temperature control method includes:

[0008] receiving the current temperature of the heating element sent by the temperature sensor and the current sensing signal sent by the touch sensor;

[0009] Determining whether the current temperature is greater than a first preset threshold;

[0010] determining whether the heating device is touched according to the current sensing signal;

[0011] When the current temperature is greater than a first preset threshold and the heating device is touched, a first control signal is sent to the heating element to control the heating element to cool down.

[0012] Furthermore, the first control signal is a first voltage pulse signal, the duty cycle of the first voltage pulse signal is a first preset ratio, and the first preset ratio is smaller than a duty cycle threshold.

[0013] Furthermore, the temperature control method further comprises:

[0014] When the current temperature drops to the first preset threshold and the heating device is touched, a second control signal is sent to the heating element to dynamically maintain the current temperature at the first preset threshold.

[0015] Furthermore, the second control signal is a second voltage pulse signal having a duty cycle of a second preset ratio, and the second preset ratio is equal to a duty cycle threshold; when a voltage pulse signal having a duty cycle of the duty cycle threshold is provided to the heating element, the temperature of the heating element will remain unchanged dynamically; or,

[0016] The second control signal is an alternating third voltage pulse signal and a fourth voltage pulse signal, the duty cycle of the third voltage pulse signal is a third preset ratio, the duty cycle of the fourth voltage pulse signal is a fourth preset ratio, the third preset ratio is greater than the duty cycle threshold, and the fourth preset ratio is less than the duty cycle threshold; sending the second control signal to the heating element so that the current temperature is dynamically maintained at the first preset threshold specifically includes:

[0017] When the current temperature is less than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, sending the third voltage pulse signal to the heating element to increase the temperature of the heating element;

[0018] When the current temperature is greater than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, a fourth voltage pulse signal is sent to the heating element to cool the heating element, or when the current temperature is equal to the first preset threshold, a fourth voltage pulse signal is sent to the heating element to cool the heating element.

[0019] Furthermore, the temperature control method further comprises:

[0020] When the current temperature is greater than the first preset threshold and the heating device is not touched, a third control signal is sent to the heating element to control the heating element to increase its temperature.

[0021] Furthermore, the third control signal is a fifth voltage pulse signal with a duty cycle of a fifth preset ratio, and the fifth preset ratio is greater than a duty cycle threshold.

[0022] Furthermore, the temperature control method further comprises:

[0023] Determine whether the current temperature reaches a second preset threshold; if so, send a fourth control signal to the heating element to dynamically maintain the current temperature at the second preset threshold.

[0024] Further, the fourth control signal is a sixth voltage pulse signal with a duty cycle of a sixth preset ratio, and the sixth preset ratio is equal to a duty cycle threshold; or,

[0025] The fourth control signal is an alternating seventh voltage pulse signal and an eighth voltage pulse signal, the duty cycle of the seventh voltage pulse signal is a seventh preset ratio, the duty cycle of the eighth voltage pulse signal is an eighth preset ratio, the seventh preset ratio is less than a duty cycle threshold, and the eighth preset ratio is greater than the duty cycle threshold; sending the fourth control signal to the heating element to dynamically maintain the current temperature at the second preset threshold specifically includes:

[0026] When the current temperature is greater than the second preset threshold and the difference between the current temperature and the second preset threshold reaches a second preset difference, sending the seventh voltage pulse signal to the heating element to cool the heating element, or when the current temperature is equal to the second preset threshold, sending the seventh voltage pulse signal to the heating element to cool the heating element;

[0027] When the current temperature is lower than the second preset threshold and the difference between the current temperature and the second preset threshold is lower than the second preset difference, an eighth voltage pulse signal is sent to the heating element to increase the temperature of the heating element.

[0028] Furthermore, the temperature control method further comprises:

[0029] When the current temperature is not greater than or less than or equal to the first preset threshold, a fifth control signal is sent to the heating element to control the heating element to increase its temperature; or when the current temperature is not greater than the first preset threshold and the heating device is not touched, a fifth control signal is sent to the heating element to control the heating element to increase its temperature.

[0030] Furthermore, the fifth control signal is a ninth voltage pulse signal having a duty cycle of a ninth preset ratio, and the ninth preset ratio is greater than a duty cycle threshold.

[0031] Furthermore, the temperature control system is also connected to a vehicle electronic control unit, and the temperature control method further comprises:

[0032] receiving a heating start instruction and a heating stop instruction sent by the vehicle electronic control unit;

[0033] After receiving the start heating instruction, start heating;

[0034] After receiving the heating-off instruction, heating is stopped.

[0035] Furthermore, the temperature control method also includes: receiving occupancy status data about the seat; determining whether the seat is occupied based on the occupancy status data of the seat; when the seat is not occupied, if the current temperature is less than a third preset threshold, sending a sixth control signal to the heating element of the first heating device to control the heating element to heat up until the third preset threshold, and the first heating device is in a position adjacent to the seat.

[0036] Further, the third preset threshold is equal to or greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold.

[0037] Furthermore, the sixth control signal is a tenth voltage pulse signal with a duty cycle of a tenth preset ratio, and the tenth preset ratio is greater than a duty cycle threshold.

[0038] Furthermore, the temperature control method also includes: when the seat is occupied, if the current temperature is less than a first preset threshold, sending a seventh control signal to the heating element of the first heating device to control the heating element to heat up until the first preset threshold, and the first heating device is in a position adjacent to the seat; if the current temperature is greater than the first preset threshold, sending an eighth control signal to the heating element of the first heating device to control the heating element to cool down until the first preset threshold, and the first heating device is in a position adjacent to the seat.

[0039] Another aspect of the present invention provides a temperature control system for a heating device inside a vehicle, the heating device comprising a heating element, a temperature sensor, and a touch sensor, the heating element, the temperature sensor, and the touch sensor all being connected to the temperature control system, the temperature sensor being used to monitor the current temperature of the heating element, and the touch sensor being used to sense whether the heating device is touched, the temperature control system comprising:

[0040] a first receiving module, configured to receive the current temperature of the heating element sent by the temperature sensor and the current sensing signal sent by the touch sensor;

[0041] A first judgment module, configured to judge whether the current temperature is greater than a first preset threshold;

[0042] a second judging module, configured to judge whether the heating device is touched according to the current sensing signal;

[0043] The first sending module is configured to send a first control signal to the heating element to control the heating element to cool down when the current temperature is greater than a first preset threshold and the heating device is touched.

[0044] Furthermore, the first control signal is a first voltage pulse signal, the duty cycle of the first voltage pulse signal is a first preset ratio, and the first preset ratio is smaller than a duty cycle threshold.

[0045] Furthermore, the temperature control system also includes a second sending module, which is used to send a second control signal to the heating element when the current temperature drops to the first preset threshold and the heating device is touched, so as to dynamically maintain the current temperature at the first preset threshold.

[0046] Furthermore, the second control signal is a second voltage pulse signal having a duty cycle of a second preset ratio, and the second preset ratio is equal to a duty cycle threshold; when a voltage pulse signal having a duty cycle of the duty cycle threshold is provided to the heating element, the temperature of the heating element will remain unchanged dynamically; or,

[0047] The second control signal is an alternating third voltage pulse signal and a fourth voltage pulse signal, the duty cycle of the third voltage pulse signal is a third preset ratio, the duty cycle of the fourth voltage pulse signal is a fourth preset ratio, the third preset ratio is greater than the duty cycle threshold, and the fourth preset ratio is less than the duty cycle threshold; sending the second control signal to the heating element so that the current temperature is dynamically maintained at the first preset threshold specifically includes:

[0048] When the current temperature is less than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, sending the third voltage pulse signal to the heating element to increase the temperature of the heating element;

[0049] When the current temperature is greater than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, a fourth voltage pulse signal is sent to the heating element to cool the heating element, or when the current temperature is equal to the first preset threshold, a fourth voltage pulse signal is sent to the heating element to cool the heating element.

[0050] Furthermore, the temperature control system further includes a third sending module, configured to send a third control signal to the heating element to control the heating element to increase its temperature when the current temperature is greater than the first preset threshold and the heating device is not touched.

[0051] Furthermore, the third control signal is a fifth voltage pulse signal with a duty cycle of a fifth preset ratio, and the fifth preset ratio is greater than a duty cycle threshold.

[0052] Furthermore, the temperature control system also includes a third judgment module for judging whether the current temperature reaches a second preset threshold value. If so, a fourth control signal is sent to the heating element to dynamically maintain the current temperature at the second preset threshold value.

[0053] Further, the fourth control signal is a sixth voltage pulse signal with a duty cycle of a sixth preset ratio, and the sixth preset ratio is equal to a duty cycle threshold; or,

[0054] The fourth control signal is an alternating seventh voltage pulse signal and an eighth voltage pulse signal, the duty cycle of the seventh voltage pulse signal is a seventh preset ratio, the duty cycle of the eighth voltage pulse signal is an eighth preset ratio, the seventh preset ratio is less than a duty cycle threshold, and the eighth preset ratio is greater than the duty cycle threshold; sending the fourth control signal to the heating element to dynamically maintain the current temperature at the second preset threshold specifically includes:

[0055] When the current temperature is greater than the second preset threshold and the difference between the current temperature and the second preset threshold reaches a second preset difference, sending the seventh voltage pulse signal to the heating element to cool the heating element, or when the current temperature is equal to the second preset threshold, sending the seventh voltage pulse signal to the heating element to cool the heating element;

[0056] When the current temperature is lower than the second preset threshold and the difference between the current temperature and the second preset threshold reaches or is lower than the second preset difference, an eighth voltage pulse signal is sent to the heating element to increase the temperature of the heating element.

[0057] Furthermore, the temperature control system also includes a fourth sending module, which is used to send a fifth control signal to the heating element to control the heating element to heat up when the current temperature is not greater than or less than or equal to the first preset threshold, or to send a fifth control signal to the heating element to control the heating element to heat up when the current temperature is not greater than the first preset threshold and the heating device is not touched.

[0058] Furthermore, the fifth control signal is a ninth voltage pulse signal having a duty cycle of a ninth preset ratio, and the ninth preset ratio is greater than a duty cycle threshold.

[0059] Furthermore, the temperature control system is also connected to the vehicle electronic control unit, and the temperature control system also includes a second receiving module for receiving the start heating instruction and the stop heating instruction sent by the vehicle electronic control unit, and the temperature control system starts heating after receiving the start heating instruction and stops heating after receiving the stop heating instruction.

[0060] Furthermore, the temperature control system is also configured to: receive occupancy status data about the seat, and determine whether the seat is occupied based on the occupancy status data of the seat; when the seat is not occupied, if the current temperature is less than a third preset threshold, send a sixth control signal to the heating element of the first heating device to control the heating element to heat up until the third preset threshold, and the first heating device is in a position adjacent to the seat.

[0061] Further, the third preset threshold is equal to or greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold.

[0062] Furthermore, the sixth control signal is a tenth voltage pulse signal with a duty cycle of a tenth preset ratio, and the tenth preset ratio is greater than a duty cycle threshold.

[0063] Furthermore, the temperature control system is also configured to: when the seat is occupied, - if the current temperature is less than a first preset threshold, send a seventh control signal to the heating element of the first heating device to control the heating element to heat up until the first preset threshold, and the first heating device is in a position adjacent to the seat; - if the current temperature is greater than the first preset threshold, send an eighth control signal to the heating element of the first heating device to control the heating element to cool down until the first preset threshold, and the first heating device is in a position adjacent to the seat.

[0064] On the other hand, the present invention provides a temperature control system, characterized in that the temperature control system includes: at least one processor; and at least one memory coupled to the at least one processor, the memory being configured to store a series of computer-executable instructions, wherein the series of computer-executable instructions, when executed by the at least one processor, causes the at least one processor to execute the temperature control method described in some embodiments of the present application.

[0065] Another aspect of the present invention provides a vehicle, characterized in that the vehicle includes: at least one interior component, in which a heating device is integrated, the heating device including a heating element, a temperature sensor and a touch sensor; and at least one temperature control system according to some embodiments of the present application.

[0066] The temperature control method and system for a heating device inside a vehicle of the present invention controls the heating element to cool down when the current temperature exceeds a first preset threshold value and the heating device is touched, so as to prevent occupants from being burned due to prolonged contact with the heating device; when the heating device is not touched, the heating element is heated to a second preset threshold value, which can, on the one hand, enable heating to be achieved as quickly as possible, and, on the other hand, avoid the risk of scalding of occupants due to brief contact with the heating device due to its excessively high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] FIG1 shows the structure of a vehicle interior heating device and its connection relationship with a temperature control system and an ECU according to some embodiments of the present application;

[0068] FIG2 is a flow chart of a method for controlling the temperature of a heating device inside a vehicle according to some embodiments of the present application;

[0069] FIG3 is a schematic structural diagram of an interior trim component according to some exemplary embodiments of the present application;

[0070] FIG4 is a structural block diagram of a temperature control system of a heating device inside a vehicle according to some other embodiments of the present application. DETAILED DESCRIPTION

[0071] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings and described in detail.

[0072] As shown in FIG1 , a vehicle interior heating device includes a heating element 100, a temperature sensor 200, and a touch sensor 300. The heating element 100, the temperature sensor 200, and the touch sensor 300 are all connected to a temperature control system 400. The heating element 100 is used to heat and radiate heat outward. The temperature sensor 200 is used to monitor the temperature of the heating element 100 and transmit the monitored temperature to the temperature control system 400. The touch sensor 300 is used to sense whether the surface of the heating device is touched by an occupant and transmit the sensing signal to the temperature control system 400. The temperature control system 400 controls the heating element 100 to increase or decrease the temperature based on the monitored temperature and the sensing signal, so that the vehicle interior can be heated as quickly as possible while preventing burns caused by prolonged occupant contact with the heating device. It should be understood that the touch in this application can involve indirect touching or squeezing of the heating device surface by the occupant, which can be transmitted to the heating device surface via an intermediate medium, such as the exterior layer of an interior trim. In other embodiments, the touch can also involve direct touching or squeezing of the heating device surface by the occupant.

[0073] As shown in FIG2 , some embodiments of the present application provide a temperature control method for a heating device. The temperature control method can be applied to or executed by a temperature control system 400 . The method includes the following steps:

[0074] S1000 : receiving the current temperature of the heating element 100 sent by the temperature sensor 200 and the current sensing signal sent by the touch sensor 300 .

[0075] The temperature sensor 200 can monitor the current temperature of the heating element 100 and send the current temperature to the temperature control system 400 . The touch sensor 300 can sense whether the heating device is touched and send the current sensing signal to the temperature control system 400 .

[0076] S2000: Determine whether the current temperature is greater than a first preset threshold.

[0077] The first preset threshold is a critical threshold at which prolonged contact with the heating element 100 by the occupant may result in burns. Specifically, when the temperature of the heating element 100 is greater than the first preset threshold, prolonged contact with the heating device by the occupant may result in burns. However, when the temperature of the heating element 100 is less than or equal to the first preset threshold, prolonged contact with the heating device by the occupant will not result in burns. Therefore, when the current temperature is less than or equal to the first preset threshold, the occupant can remain in contact with the heating element 100 for an extended period without cooling the heating element 100. When the current temperature is greater than the first preset threshold, cooling the heating element 100 may be necessary to prevent burns. The first preset threshold may be less than or equal to 45°C, for example, between 40°C and 45°C, such as 43°C.

[0078] S3000: Determine whether the heating device is touched based on the current sensing signal.

[0079] The touch sensor 300 can be a capacitive sensor or a resistive sensor. When the heating device is touched, it generates a capacitance or voltage signal (i.e., a sensing signal). After receiving this sensing signal, the temperature control system 400 can determine whether the heating device has been touched. The structure and operating principle of the touch sensor 300 are well known in the art and will not be described in detail here.

[0080] S4000: When the current temperature is greater than a first preset threshold and the heating device is touched, a first control signal is sent to the heating element 100 to control the heating element 100 to cool down.

[0081] When the current temperature is greater than the first preset threshold, if the occupant contacts the heating device for a long time, there is a risk of burns. Therefore, it is necessary to control the heating element 100 to cool down so that the temperature of the heating element 100 drops to less than or equal to the first preset threshold.

[0082] In some embodiments, the first control signal may be a first voltage pulse signal having a duty cycle of a first preset ratio (e.g., 0, 10%, 20%, 30%, etc.). The first voltage pulse signal is used to provide a heating voltage to the heating element 100, which can heat the heating element 100. The duty cycle refers to the proportion of the power-on time relative to the total time within a pulse cycle. For example, when the duty cycle is 0, it means that the voltage provided to the heating element 100 is always 0 within a pulse cycle, and the heating element 100 will stop heating and gradually cool down, so its temperature will gradually decrease. When the duty cycle is 10%, it means that within a pulse cycle, a voltage greater than 0 is provided to the heating element 100 for 10% of the time, causing the heating element 100 to heat, and no voltage is provided for the remaining 90% of the time, causing the heating element 100 to stop heating. At this time, since the heating time of the heating element 100 is much shorter than the cooling time of the heating element 100, the heating element 100 can also be cooled slowly.

[0083] It is understood that when the duty cycle is less than the duty cycle threshold, the voltage pulse signal of this duty cycle can cool the heating element 100. When the duty cycle is greater than the duty cycle threshold, the heating element 100 heats up because the heating time is greater than the cooling time, and the heat generated by heating is greater than the heat dissipated during cooling. Therefore, the heating element 100 can be heated. When the duty cycle is equal to the duty cycle threshold, the heat generated and dissipated by the heating element 100 are balanced, so the temperature of the heating element 100 can fluctuate within a certain small range. The specific value of the duty cycle threshold can be obtained by experimenting with voltage pulse signals of different duty cycles input to the heating element 100.

[0084] The first preset ratio must be less than the duty cycle threshold, and in order to quickly cool the heating element 100, the value of the first preset ratio can be less than 10%. It should be understood that the value of the first preset ratio is not limited to the current embodiment and can be adjusted according to actual conditions.

[0085] It should be understood that the technical means for cooling and heating of the present application can be implemented by various technical means for adjusting the heating power provided to the heating element, and is not limited to technical means based on duty cycle. In some embodiments, the technical means for cooling and heating of the present application can achieve cooling and heating by applying different levels of voltage. In some embodiments, the technical means for cooling and heating of the present application can achieve cooling and heating by applying different levels of current.

[0086] When the heating device is touched, triggering the heating element 100 to cool down, if the current temperature drops to or is less than or equal to the first preset threshold, and the heating device is still touched, the temperature control system 400 will control the heating element 100 to dynamically maintain the current temperature at the first preset threshold. Dynamically maintaining the first preset threshold means that the current temperature will fluctuate within a small range around the first preset threshold, and this small range can be less than or equal to 1°C or 0.5°C. Specifically, the temperature control system 400 can send a second control signal to the heating element 100. The second control signal is a second voltage pulse signal with a duty cycle of a second preset ratio, where the second preset ratio is equal to the duty cycle threshold, thereby dynamically maintaining the current temperature at the first preset threshold. Alternatively, the second control signal may be an alternating third voltage pulse signal and a fourth voltage pulse signal, wherein the duty cycle of the third voltage pulse signal is a third preset ratio, which is greater than a duty cycle threshold value (for example, 100% or 90%, 80%, 70%), and the duty cycle of the fourth voltage pulse signal is a fourth preset ratio, which is less than the duty cycle threshold value (for example, 0, 10%, 20%, 30%). When the current temperature is less than the first preset threshold value and the difference between the current temperature and the first preset threshold value reaches or is less than or equal to the first preset difference value (for example, -0.5°C, more specifically, the absolute value of the difference between the current temperature and the first preset threshold value is greater than or equal to the absolute value of the first preset difference), the temperature control system 400 sends the third voltage pulse signal to the heating element 100 to increase the temperature of the heating element 100; when the current temperature is equal to the first preset threshold value, the temperature control system 400 sends the fourth voltage pulse signal to the heating element 100 to reduce the temperature of the heating element 100. In this way, the current temperature can be dynamically maintained at the first preset threshold value and not exceed the first preset threshold value.

[0087] In some embodiments, the method for controlling the temperature of a heating device inside a vehicle may further include:

[0088] S5000: When the current temperature is greater than the first preset threshold and the heating device is not touched, a third control signal is sent to the heating element 100 to control the heating element 100 to increase its temperature.

[0089] When the heating device is not touched, there is no risk of scalding for the occupant, so the temperature of the heating element 100 may exceed the first preset threshold and be as high as possible to increase the heating speed.

[0090] The third control signal may be a fifth voltage pulse signal having a duty cycle of a fifth preset ratio, where the fifth preset ratio is greater than a duty cycle threshold, for example, 100%, 90%, 80% or 70%.

[0091] If the temperature of the heating device is too high (for example, exceeding 70°C), even if the passenger only touches the heating device once, burns may occur. Therefore, the temperature control method may further include:

[0092] It is determined whether the current temperature reaches or is greater than or equal to a second preset threshold (eg, 70° C.). If so, a fourth control signal is sent to the heating element 100 to dynamically maintain the current temperature at the second preset threshold.

[0093] The fourth control signal may be a sixth voltage pulse signal having a duty cycle of a sixth preset ratio, the sixth preset ratio being equal to the duty cycle threshold, thereby dynamically maintaining the current temperature at the second preset threshold; or, the fourth control signal may be an alternating seventh voltage pulse signal and an eighth voltage pulse signal, the duty cycle of the seventh voltage pulse signal being a seventh preset ratio being less than the duty cycle threshold (e.g., 0%, 10%, 20%, 30%), and the duty cycle of the eighth voltage pulse signal being an eighth preset ratio being greater than the duty cycle threshold (e.g., 100%, 90%, 80%, or 70%). When the current temperature is equal to the second preset threshold, a seventh voltage pulse signal is sent to the heating element 100 to cool down the heating element 100. When the current temperature is lower than the second preset threshold and the difference between the two reaches or is lower than or equal to the second preset difference (for example, -0.5°C, more precisely, the absolute value of the difference between the current temperature and the second preset threshold is greater than or equal to the absolute value of the second preset difference), an eighth voltage pulse signal is sent to the heating element 100 to heat up the heating element 100. In this way, the current temperature can be dynamically maintained at the second preset threshold and not exceed the second preset threshold.

[0094] In some embodiments, the temperature control method may further include:

[0095] If the result of step S2000 is that the current temperature is not greater than or is only less than the first preset threshold, a fifth control signal is sent to the heating element 100 to control the heating element 100 to increase its temperature. In some embodiments, if the result of step S2000 is that the current temperature is not greater than the first preset threshold and the heating device is not touched, the fifth control signal is sent to the heating element 100 to control the heating element 100 to increase its temperature.

[0096] When the current temperature does not reach or is less than the first preset threshold, no matter whether the heating device is touched or not, no burns will be caused to the occupant. Therefore, the heating element 100 needs to be heated as quickly as possible to increase the heating speed.

[0097] The fifth control signal may be a ninth voltage pulse signal having a ninth preset duty cycle, which is greater than a duty cycle threshold (eg, 100%, 90%, 80% or 70%), so that the heating element 100 is heated.

[0098] In some embodiments, the temperature control method may further include: receiving seat occupancy status data (e.g., obtained from a known occupancy sensor or identification sensor); determining whether the seat is occupied based on the seat occupancy status data; when the seat is not occupied, if the current temperature is less than a third preset threshold, sending a sixth control signal to the heating element of the first heating device to control the heating element to heat up until the third preset threshold, and the first heating device is in an adjacent position to the seat. The third preset threshold may, for example, be equal to or greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold. In some embodiments, the sixth control signal is a tenth voltage pulse signal with a duty cycle of a tenth preset ratio, and the tenth preset ratio is greater than the duty cycle threshold. This allows for rapid temperature rise while ensuring that the occupants are not burned.

[0099] In some embodiments, the temperature control method may further include: when the seat is occupied, - if the current temperature is less than a first preset threshold, sending a seventh control signal to the heating element of the first heating device to control the heating element to heat up until the first preset threshold, and the first heating device is in an adjacent position to the seat; - if the current temperature is greater than the first preset threshold, sending an eighth control signal to the heating element of the first heating device to control the heating element to cool down until the first preset threshold, and the first heating device is in an adjacent position to the seat.

[0100] In this article, the adjacent position of the seat may refer to a spatial area that is touchable when the occupant sits on the seat. In some embodiments, the adjacent position may refer to a position that is generally not in direct contact with the occupant when the occupant sits on the seat. The so-called direct contact position may include, but is not limited to: the front of the seat back, the front of the seat cushion, the front of the headrest, the front of the leg rest or the front of the footrest, the front of the table top (the front may also be referred to as the A side), and / or the steering wheel, etc. The adjacent position, that is, the non-direct contact position may include, but is not limited to: the back of the seat back, the back of the seat cushion, the back of the headrest, the back of the leg rest or the back of the footrest, the back of the table top, and / or the back of the knee guard, etc. (the back may also be referred to as the B side). This can reduce the possibility of accidental burns to the occupants, thereby improving safety and user experience.

[0101] As shown in FIG. 1, the temperature control system 400 may also be connected to a vehicle electronic control unit (ECU) 500 to control the temperature of the heating device through the ECU 500. Specifically, an occupant may send a start heating instruction and a stop heating instruction to the temperature control system 400 through the ECU 500. After receiving the start heating instruction, the temperature control system 400 starts heating and begins to execute the logic described in the above steps; after receiving the stop heating instruction, regardless of which logic it is executing in the above steps, the temperature control system 400 immediately stops heating.

[0102] In some embodiments, the above temperature control method may be executed by the temperature control system. The temperature control system may include: at least one processor; and at least one memory coupled to the at least one processor. The memory is configured to store a series of computer-executable instructions. When the series of computer-executable instructions are executed by the at least one processor, the at least one processor executes at least some of the steps of the temperature control method. In some embodiments, the temperature control system may involve a control chip, which may communicate with a domain processor of the vehicle, such as a vehicle processor.

[0103] As shown in FIG. 3, in an exemplary embodiment, the heating device may be integrated into the interior trim of the vehicle, so that it is hidden in the interior trim to avoid affecting the aesthetics of the interior of the vehicle. Specifically, the interior trim may include a skeleton 10, a heating device 20, and an outer layer 30 arranged in sequence from the inside to the outside. The outer layer 30 wraps the skeleton 10 and the heating device 20 to hide the skeleton 10 and the heating device 20 and make the interior trim more beautiful. In this way, the interior trim has both heating and touch sensing functions. By executing the temperature control method of the above embodiment through the temperature control system 400, temperature control can be achieved, enabling the interior trim to quickly heat the interior of the vehicle without scalding the occupant.

[0104] The following illustrates the control logic of the temperature control method of the present invention through several examples:

[0105] Example 1: When the current temperature (T) is between the first preset threshold (T1) and the second preset threshold (T2), that is, T1 < T < T2, the occupant touches the heating device and keeps touching. In this example, after the occupant touches the heating device, the temperature control system 400 sends a first control signal to the heating element 100 to cool the heating element 100. After the current temperature drops to T1, a second control signal is sent to the heating element 100 to keep the current temperature dynamically at T1.

[0106] Example 2: The occupant touches the heating device once when T1 < T < T2 and leaves before the current temperature drops to T1. In this example, after the occupant touches the heating device, the temperature control system 400 will send a first control signal to the heating element 100 to control its cooling. After the occupant leaves the heating device, the temperature control system 400 will send a third control signal to control its heating.

[0107] Example 3: The occupant touches the heating device once when T1 < T < T2 and leaves after a period of time when the temperature drops to T1. At this time, after the occupant touches the heating device, the temperature control system 400 will send a first control signal to the heating element 100 to control its cooling until the current temperature drops to T1. Then the temperature control system 400 will send a second control signal to the heating element to keep the current temperature dynamically at T1; after the occupant leaves the heating device, the temperature control system 400 will send a third control signal to make the heating element 100 heat up.

[0108] Example 4: The occupant touches the heating device multiple times when T1 < T < T2 and does not leave all the time. At this time, after each touch, the temperature control system 400 will send a first control signal to the heating element 100 to control its cooling, and after each leave, the temperature control system 400 will send a third control signal to the heating element 100 to control its heating; after the last touch, since the occupant does not leave all the time and always maintains contact, T will drop to T1, and then the temperature control system 400 will send a second control signal to make T dynamically stay at T1.

[0109] Example 5: The occupant touches multiple times when T1 < T < T2 and the temperature does not drop to T1, and then leaves all the time. At this time, after each touch, the temperature control system 400 will send a first control signal to the heating element 100 to control its cooling, and after each leave, the temperature control system 400 will send a third control signal to make the heating element 100 heat up; after leaving and when T rises to T2, the temperature control system 400 will send a fourth control signal to the heating element 100 to make T dynamically stay at T2.

[0110] Example 6: The occupant touches multiple times when T1 < T < T2 and the temperature drops to T1 at least once, and then leaves all the time. At this time, after each touch, the temperature control system 400 will send a first control signal to the heating element 100 to control its cooling, and after each leave, the temperature control system 400 will send a third control signal to make the heating element 100 heat up; when the temperature drops to T1 and is touched, control T to dynamically stay at T1; after leaving and when T rises to T2, the temperature control system 400 will send a fourth control signal to the heating element 100 to make T dynamically stay at T2.

[0111] Example 7: The occupant does not touch the heating device when T1 < T < T2 and does not touch it when T = T2. At this time, the temperature control system 400 sends a third control signal to the heating element 100 to increase its temperature. When T = T2, the temperature control system 400 sends a fourth control signal to the heating element to keep T dynamically at T2.

[0112] Example 8: The occupant does not touch the heating device when T1 < T < T2 and touches it when T = T2. At this time, the temperature control system 400 sends a third control signal to the heating element 100 to increase its temperature. After being touched, the temperature control system 400 sends a first control signal to the heating element 100 to decrease its temperature. Then, corresponding control logic is executed according to whether it is touched subsequently.

[0113] The control logic of the temperature control method of the present invention can be simply summarized as follows: when T < T1, the heating element 100 is heated regardless of whether the heating device is touched; when T1 < T ≤ T2, as long as the heating device is touched, the heating element 100 is controlled to decrease its temperature, and as long as the heating device is not touched, the heating element 100 is controlled to increase its temperature; when T = T2 and the heating device is not touched, T is controlled to dynamically remain at T2; when T = T1 and the heating device is touched, T is controlled to dynamically remain at T1.

[0114] For the temperature control method of the heating device inside the vehicle in some embodiments of the present application, when the current temperature exceeds the first preset threshold and the heating device is touched, the heating element 100 is controlled to decrease its temperature to prevent the occupant from being scalded due to long-term contact with the heating device; when the heating device is not touched, the heating element 100 is heated to the second preset threshold. On the one hand, it can achieve heating as quickly as possible, and on the other hand, it can also avoid the risk of the occupant being scalded due to short-term contact with the heating device due to its too high temperature.

[0115] As shown in FIG. 4, another embodiment of the present invention provides a temperature control system 400 for a heating device inside a vehicle, which includes a first receiving module 410, a first judging module 420, a second judging module 430, and a first sending module 440.

[0116] The first receiving module 410 is configured to receive the current temperature of the heating element 100 sent by the temperature sensor 200 and the current induction signal sent by the touch sensor 300.

[0117] The first judging module 420 is configured to judge whether the current temperature is greater than the first preset threshold.

[0118] The second judging module 430 is configured to judge whether the heating device is touched according to the current induction signal.

[0119] The first sending module 440 is configured to send a first control signal to the heating element 100 to control the heating element 100 to cool down when the current temperature is greater than a first preset threshold and the heating device is touched.

[0120] In some embodiments, the first control signal may be a first voltage pulse signal, the duty cycle of which is a first preset ratio, which is smaller than a duty cycle threshold, for example, may be less than 10%.

[0121] The temperature control system 400 may further include a second sending module for sending a second control signal to the heating element when the current temperature drops to the first preset threshold and the heating device is touched, so as to dynamically maintain the current temperature at the first preset threshold.

[0122] The second control signal may be a second voltage pulse signal having a second preset ratio of duty cycle, wherein the second preset ratio is equal to the duty ratio threshold, thereby dynamically maintaining the current temperature at the first preset threshold. Alternatively, the second control signal may be an alternating third and fourth voltage pulse signals, wherein the duty ratio of the third voltage pulse signal is a third preset ratio that is greater than the duty ratio threshold (e.g., 100%), and the duty ratio of the fourth voltage pulse signal is a fourth preset ratio that is less than the duty ratio threshold (e.g., 0). When the current temperature is less than the first preset threshold and the difference between the current temperature and the first preset threshold reaches or is less than or equal to the first preset difference (e.g., -0.5°C, more specifically, the absolute value of the difference between the current temperature and the first preset threshold is greater than or equal to the absolute value of the first preset difference), the temperature control system 400 sends the third voltage pulse signal to the heating element 100 to increase the temperature of the heating element 100; when the current temperature is equal to the first preset threshold, the temperature control system 400 sends the fourth voltage pulse signal to the heating element 100 to reduce the temperature of the heating element 100. In this way, the current temperature can be dynamically maintained at the first preset threshold and does not exceed the first preset threshold.

[0123] The temperature control system may further include a third sending module for sending a third control signal to the heating element 100 to control the heating element 100 to increase its temperature when the current temperature is greater than the first preset threshold and the heating device is not touched.

[0124] The third control signal may be a fifth voltage pulse signal having a duty cycle of a fifth preset ratio. The fifth preset ratio is greater than a duty cycle threshold, for example, may be 100%.

[0125] The temperature control system may further include a third judgment module for judging whether the current temperature reaches or is less than or equal to a second preset threshold. If so, a fourth control signal is sent to the heating element 100 to dynamically maintain the current temperature at the second preset threshold.

[0126] The fourth control signal may be a sixth voltage pulse signal having a duty cycle of a sixth preset ratio, the sixth preset ratio being equal to the duty cycle threshold, thereby dynamically maintaining the current temperature at the second preset threshold; or, the fourth control signal may be an alternating seventh voltage pulse signal and an eighth voltage pulse signal, the duty cycle of the seventh voltage pulse signal being a seventh preset ratio being less than the duty cycle threshold (for example, 0%, 10%, 20%, or 30%), and the duty cycle of the eighth voltage pulse signal being an eighth preset ratio being greater than the duty cycle threshold (for example, 100%, 90%, 80%, or 70%). %), when the current temperature is equal to the second preset threshold, a seventh voltage pulse signal is sent to the heating element 100 to cool down the heating element 100; when the current temperature is lower than the second preset threshold and the difference between the two reaches or is lower than or equal to the second preset difference (for example, -0.5°C, more precisely, the absolute value of the difference between the current temperature and the second preset threshold is greater than or equal to the absolute value of the second preset difference), an eighth voltage pulse signal is sent to the heating element 100 to heat up the heating element 100. In this way, the current temperature can be dynamically maintained at the second preset threshold and not exceed the second preset threshold.

[0127] The temperature control system may further include a fourth sending module, configured to send a fifth control signal to the heating element 100 to control the heating element 100 to increase its temperature when the judgment result of the first judgment module 420 is negative.

[0128] The fifth control signal may be a ninth voltage pulse signal having a ninth preset duty cycle, which is greater than a duty cycle threshold (eg, 100%, 90%, 80%, or 70%), so that the heating element 100 is heated.

[0129] The temperature control system 400 may also include a second receiving module for receiving the start heating instruction and the stop heating instruction sent by the ECU 500. After receiving the start heating instruction, the heating is turned on and the logic described in the above steps is started to be executed; after receiving the stop heating instruction, the heating is stopped immediately regardless of which logic in the above steps is being executed.

[0130] In some embodiments, the temperature control system 400 may be further configured to: receive seat occupancy status data (e.g., obtained via some known occupancy sensor or identification sensor) and determine whether the seat is occupied based on the seat occupancy status data; and when the seat is not occupied, if the current temperature is less than a third preset threshold, send a sixth control signal to a heating element of a first heating device to control the heating element to increase its temperature until the third preset threshold, wherein the first heating device is located adjacent to the seat. The third preset threshold is, for example, equal to or greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold. In some embodiments, the sixth control signal is a tenth voltage pulse signal having a tenth preset ratio of duty cycle, wherein the tenth preset ratio is greater than the duty cycle threshold.

[0131] In some embodiments, the temperature control system 400 can also be configured to: when the seat is occupied, - if the current temperature is less than the first preset threshold, send a seventh control signal to the heating element of the first heating device to control the heating element to increase the temperature until the first preset threshold, and the first heating device is in a position adjacent to the seat; - if the current temperature is greater than the first preset threshold, send an eighth control signal to the heating element of the first heating device to control the heating element to decrease the temperature until the first preset threshold, and the first heating device is in a position adjacent to the seat.

[0132] In some embodiments of the present application, the temperature control system 400 of the heating device inside the vehicle controls the heating element 100 to cool down when the current temperature exceeds a first preset threshold value and the heating device is touched, so as to prevent the occupants from being burned due to prolonged contact with the heating device; when the heating device is not touched, the heating element 100 is heated to a second preset threshold value, which can, on the one hand, enable heating to be achieved as quickly as possible, and on the other hand, avoid the risk of scalding the occupants due to brief contact with the heating device due to its overly high temperature.

[0133] It should be noted that the present invention (e.g., the inventive concept, etc.) has been described in the specification of this patent document and / or illustrated in the drawings based on exemplary embodiments; the embodiments of the present invention are presented only by way of example and are not intended to limit the scope of the invention. The structure and / or arrangement of the elements of the inventive concept embodied in the present invention as described in the specification and / or illustrated in the drawings is merely illustrative. Although exemplary embodiments of the present invention have been described in detail in this patent document, it is readily understood by those skilled in the art that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matters (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that various / other modifications, changes, substitutions, equivalents, changes, omissions, etc. may be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concept, design, structure, device, form, assembly, construction, means, function, system, process / method, step, order of process / method steps, operation, operating conditions, performance, materials, composition, combination, etc.) without departing from the scope of the present invention; all of these subjects (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter described in the description and / or drawings of this patent document (e.g., details, structures, functions, materials, behaviors, steps, orders, systems, results, etc.). Considering that the claims of this patent document will be appropriately interpreted to cover the full scope of the subject matter of the present invention (e.g., including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terminology used in this patent document is intended to provide a description of the subject matter of the exemplary embodiments, and not as a limitation on the scope of the present invention.

[0134] It should also be noted that, depending on the exemplary embodiments, the present invention may include conventional technologies (such as those implemented and / or integrated in the exemplary embodiments, modifications, variations, combinations, equivalents), or may include any other applicable technologies (present and / or future) that have the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All of these technologies (such as those implemented in embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A method for controlling the temperature of a heating device inside a vehicle, characterized in that: The heating device includes a heating element, a temperature sensor and a touch sensor. The heating element, the temperature sensor and the touch sensor are all connected to a temperature control system. The temperature sensor is used to monitor the current temperature of the heating element. The touch sensor is used to sense whether the heating device is touched. The temperature control method includes: receiving the current temperature of the heating element sent by the temperature sensor and the current sensing signal sent by the touch sensor; Determining whether the current temperature is greater than a first preset threshold; determining whether the heating device is touched according to the current sensing signal; When the current temperature is greater than a first preset threshold and the heating device is touched, a first control signal is sent to the heating element to control the heating element to cool down.

2. The temperature control method of the heating device in the vehicle interior according to claim 1, characterized in that: The first control signal is a first voltage pulse signal, a duty cycle of the first voltage pulse signal is a first preset ratio, and the first preset ratio is smaller than a duty cycle threshold.

3. The temperature control method of the heating device in the vehicle according to claim 1, characterized in that: Also includes: When the current temperature drops to the first preset threshold and the heating device is touched, a second control signal is sent to the heating element to dynamically maintain the current temperature at the first preset threshold.

4. The temperature control method of the vehicle interior heating device according to claim 3, characterized in that: The second control signal is a second voltage pulse signal with a duty cycle of a second preset ratio, and the second preset ratio is equal to the duty cycle threshold; when a voltage pulse signal with a duty cycle of the duty cycle threshold is provided to the heating element, the temperature of the heating element will remain unchanged dynamically; or, The second control signal is an alternating third voltage pulse signal and a fourth voltage pulse signal, the duty cycle of the third voltage pulse signal is a third preset ratio, the duty cycle of the fourth voltage pulse signal is a fourth preset ratio, the third preset ratio is greater than the duty cycle threshold, and the fourth preset ratio is less than the duty cycle threshold; Sending a second control signal to the heating element so that the current temperature is dynamically maintained at the first preset threshold value specifically includes: When the current temperature is less than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, sending the third voltage pulse signal to the heating element to increase the temperature of the heating element; When the current temperature is greater than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first When the preset difference is reached, a fourth voltage pulse signal is sent to the heating element to cool the heating element, or when the current temperature is equal to the first preset threshold, a fourth voltage pulse signal is sent to the heating element to cool the heating element.

5. The temperature control method of a heating device inside a vehicle according to claim 1, characterized in that: Also includes: When the current temperature is greater than the first preset threshold and the heating device is not touched, a third control signal is sent to the heating element to control the heating element to increase its temperature.

6. The temperature control method of the heating device in the vehicle interior according to claim 5, characterized in that: The third control signal is a fifth voltage pulse signal with a duty cycle of a fifth preset ratio, and the fifth preset ratio is greater than a duty cycle threshold.

7. The temperature control method of the heating device in the vehicle interior according to claim 5, characterized in that: Also includes: It is determined whether the current temperature reaches a second preset threshold value. If so, a fourth control signal is sent to the heating element to dynamically maintain the current temperature at the second preset threshold value.

8. The temperature control method of the vehicle interior heating device according to claim 7, characterized in that: The fourth control signal is a sixth voltage pulse signal having a duty cycle of a sixth preset ratio, and the sixth preset ratio is equal to the duty cycle threshold; or, The fourth control signal is an alternating seventh voltage pulse signal and an eighth voltage pulse signal, the duty cycle of the seventh voltage pulse signal is a seventh preset ratio, the duty cycle of the eighth voltage pulse signal is an eighth preset ratio, the seventh preset ratio is less than a duty cycle threshold, and the eighth preset ratio is greater than the duty cycle threshold; Sending a fourth control signal to the heating element so that the current temperature is dynamically maintained at the second preset threshold value specifically includes: When the current temperature is greater than the second preset threshold and the difference between the current temperature and the second preset threshold reaches a second preset difference, the seventh voltage pulse signal is sent to the heating element to cool the heating element, or when the current temperature is equal to the second preset threshold, the seventh voltage pulse signal is sent to the heating element to cool the heating element; When the current temperature is less than the second preset threshold and the difference between the current temperature and the second preset threshold is less than the second preset difference, an eighth voltage pulse signal is sent to the heating element to increase the temperature of the heating element.

9. The temperature control method of a heating device in a vehicle interior according to claim 1, characterized in that: Also includes: When the current temperature is not greater than the first preset threshold, a fifth control signal is sent to the heating element to The heating element is controlled to increase in temperature.

10. The temperature control method of the vehicle interior heating device according to claim 9, characterized in that: The fifth control signal is a ninth voltage pulse signal having a duty cycle of a ninth preset ratio, and the ninth preset ratio is greater than a duty cycle threshold.

11. The temperature control method of a heating device in a vehicle interior according to claim 1, characterized in that: The temperature control system is also connected to the vehicle electronic control unit, and the temperature control method further includes: Receiving a heating start instruction and a heating stop instruction sent by the vehicle electronic control unit; After receiving the start heating instruction, start heating; After receiving the heating off instruction, the heating is stopped. Preferably, the temperature control method further comprises: receiving occupancy status data regarding the seat; determining whether the seat is occupied according to the seat occupancy status data; When the seat is not occupied, if the current temperature is less than a third preset threshold, a sixth control signal is sent to a heating element of a first heating device to control the heating element to increase in temperature until the third preset threshold, and the first heating device is in a position adjacent to the seat, Preferably, the third preset threshold is equal to or greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold. Preferably, the sixth control signal is a tenth voltage pulse signal having a duty cycle of a tenth preset ratio, and the tenth preset ratio is greater than a duty cycle threshold value. Preferably, When the seat is occupied, -If the current temperature is lower than the first preset threshold, a seventh control signal is sent to the heating element of the first heating device to control the heating element to increase its temperature until the first preset threshold, and the first heating device is in an adjacent position to the seat; -If the current temperature is higher than the first preset threshold, an eighth control signal is sent to the heating element of the first heating device to control the heating element to decrease its temperature until the first preset threshold, and the first heating device is in an adjacent position to the seat.

12. A temperature control system for a heating device inside a vehicle, characterized in that: The heating device includes a heating element, a temperature sensor and a touch sensor. The heating element, the temperature sensor and the touch sensor are all connected to the temperature control system. The temperature sensor is used to monitor the current temperature of the heating element. The touch sensor is used to sense whether the heating device is touched. The temperature control system includes: a first receiving module, configured to receive the current temperature of the heating element sent by the temperature sensor and the current sensing signal sent by the touch sensor; A first judgment module, used to judge whether the current temperature is greater than a first preset threshold; A second judging module, used for judging whether the heating device is touched according to the current sensing signal; The first sending module is used to send a first control signal to the heating element to control the heating element to cool down when the current temperature is greater than a first preset threshold and the heating device is touched.

13. The temperature control system of the vehicle interior heating device according to claim 12, characterized in that: The first control signal is a first voltage pulse signal, a duty cycle of the first voltage pulse signal is a first preset ratio, and the first preset ratio is smaller than a duty cycle threshold.

14. The temperature control system of the vehicle interior heating device according to claim 12, characterized in that: It also includes a second sending module, which is used to send a second control signal to the heating element when the current temperature drops to the first preset threshold and the heating device is touched, so as to dynamically maintain the current temperature at the first preset threshold.

15. The temperature control system of the vehicle interior heating device according to claim 14, characterized in that: The second control signal is a second voltage pulse signal with a duty cycle of a second preset ratio, and the second preset ratio is equal to the duty cycle threshold; when a voltage pulse signal with a duty cycle of the duty cycle threshold is provided to the heating element, the temperature of the heating element will remain unchanged dynamically; or, The second control signal is an alternating third voltage pulse signal and a fourth voltage pulse signal, the duty cycle of the third voltage pulse signal is a third preset ratio, the duty cycle of the fourth voltage pulse signal is a fourth preset ratio, the third preset ratio is greater than the duty cycle threshold, and the fourth preset ratio is less than the duty cycle threshold; Sending a second control signal to the heating element so that the current temperature is dynamically maintained at the first preset threshold value specifically includes: When the current temperature is less than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, sending the third voltage pulse signal to the heating element to increase the temperature of the heating element; When the current temperature is greater than the first preset threshold and the difference between the current temperature and the first preset threshold reaches a first preset difference, a fourth voltage pulse signal is sent to the heating element to cool down the heating element, or when the current temperature is equal to the first preset threshold, a fourth voltage pulse signal is sent to the heating element to cool down the heating element.

16. The temperature control system of the vehicle interior heating device according to claim 12, characterized in that: It also includes a third sending module, which is used to send a third control signal to the heating element to control the heating element to increase its temperature when the current temperature is greater than the first preset threshold and the heating device is not touched.

17. The temperature control system of the vehicle interior heating device according to claim 16, characterized in that: The third control signal is a fifth voltage pulse signal with a duty cycle of a fifth preset ratio, and the fifth preset ratio is greater than a duty cycle threshold.

18. The temperature control system of the vehicle interior heating device according to claim 16, characterized in that: It also includes a third judgment module for judging whether the current temperature reaches a second preset threshold value. If so, a fourth control signal is sent to the heating element to dynamically maintain the current temperature at the second preset threshold value.

19. The temperature control system of the vehicle interior heating device according to claim 18, characterized in that: The fourth control signal is a sixth voltage pulse signal having a duty cycle of a sixth preset ratio, and the sixth preset ratio is equal to the duty cycle threshold; or, The fourth control signal is an alternating seventh voltage pulse signal and an eighth voltage pulse signal, the duty cycle of the seventh voltage pulse signal is a seventh preset ratio, the duty cycle of the eighth voltage pulse signal is an eighth preset ratio, the seventh preset ratio is less than a duty cycle threshold, and the eighth preset ratio is greater than the duty cycle threshold; Sending a fourth control signal to the heating element so that the current temperature is dynamically maintained at the second preset threshold value specifically includes: When the current temperature is greater than the second preset threshold and the difference between the current temperature and the second preset threshold reaches a second preset difference, the seventh voltage pulse signal is sent to the heating element to cool the heating element, or when the current temperature is equal to the second preset threshold, the seventh voltage pulse signal is sent to the heating element to cool the heating element; When the current temperature is less than the second preset threshold and the difference between the current temperature and the second preset threshold is less than the second preset difference, an eighth voltage pulse signal is sent to the heating element to increase the temperature of the heating element.

20. The temperature control system of the vehicle interior heating device according to claim 12, characterized in that: Also includes a fourth sending module, Used to send a fifth control signal to the heating element when the current temperature is not greater than the first preset threshold value, so as to control the heating element to increase its temperature.

21. The temperature control system of the vehicle interior heating device according to claim 20, characterized in that: The fifth control signal is a ninth voltage pulse signal having a duty cycle of a ninth preset ratio, and the ninth preset ratio is greater than a duty cycle threshold.

22. The temperature control system of the vehicle interior heating device according to claim 12, characterized in that: The temperature control system is also connected to the vehicle electronic control unit, and the temperature control system also includes a second receiving module for receiving a heating start instruction and a heating shutoff instruction sent by the vehicle electronic control unit, and the temperature control system starts heating after receiving the heating start instruction, and stops heating after receiving the heating shutoff instruction. Preferably, the temperature control system is further configured to: receive seat occupancy status data about the seat, and determine whether the seat is occupied according to the seat occupancy status data; when the seat is not occupied, if the current temperature is less than a third preset threshold, send a sixth control signal to the heating element of the first heating device to control the heating element to heat up to the third preset threshold, and the first heating device is in a position adjacent to the seat, Preferably, the third preset threshold is equal to or greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold. Preferably, the sixth control signal is a tenth voltage pulse signal having a duty cycle of a tenth preset ratio, and the tenth preset ratio is greater than a duty cycle threshold value. Preferably, The temperature control system is further configured to: when the seat is occupied, - if the current temperature is less than a first preset threshold, sending a seventh control signal to a heating element of a first heating device to control the heating element to increase its temperature until the first preset threshold, the first heating device being in a position adjacent to the seat; If the current temperature is greater than a first preset threshold, an eighth control signal is sent to a heating element of a first heating device to control the heating element to cool down to the first preset threshold, the first heating device being in a position adjacent to the seat.

23. A temperature control system, characterized in that: The temperature control system includes: at least one processor; and at least one memory coupled to the at least one processor, the memory being configured to store a series of computer executable instructions, wherein the series of computer executable instructions, when executed by the at least one processor, causes the at least one processor to perform the temperature control method according to one of claims 1 to 11.

24. A vehicle, characterized in that The vehicle comprises: at least one interior trim component, in which a heating device is integrated, the heating device comprising a heating element, a temperature sensor, and a touch sensor; and At least one temperature control system according to any one of claims 12 to 23.

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