Defrosting control device, defrosting system and vehicle

Abstract

The invention discloses a defrosting control device, a defrosting system and a vehicle, the defrosting control device comprises a first controller and a second controller, the first controller is configured to control a defrosting assembly in a normal state and output a feedback signal in an abnormal state, the second controller is in communication connection with the first controller, and the second controller is configured to control the defrosting assembly in the normal state and output the feedback signal in the abnormal state. The second controller is configured to control the defrosting assembly according to the received feedback signal. When the first controller is in the abnormal state, the first controller cannot normally control the defrosting assembly to work and output the feedback signal, and the second controller replaces the first controller to control the defrosting assembly according to the received feedback signal, so that the situation that when the first controller cannot control the defrosting assembly to work, the first controller cannot control the defrosting assembly to work is avoided. According to the defrosting control device, the situation that the defrosting function cannot be achieved is avoided, the function of the defrosting control device is achieved more safely and reliably, and the situation that the driving view and driving safety of the vehicle are affected due to the fact that defrosting and demisting are invalid is avoided.

Description

Technical Field

[0001] The present invention relates to the field of defrosting equipment, and more particularly to a defrosting control device, a defrosting system and a vehicle. Background Art

[0002] In the related art, when there is a problem with the controller signal communication of the defrost system, the controller cannot transmit the signal to realize the defrosting function, making the defrosting and defogger ineffective, affecting the driving vision of the vehicle, and in serious cases affecting the driving safety of the vehicle. Summary of the invention

[0003] Embodiments of the present invention provide a defrost control device, a defrost system and a vehicle.

[0004] The defrost control device provided in an embodiment of the present invention includes a first controller and a second controller. The first controller is configured to control the defrost component under normal conditions and output a feedback signal under abnormal conditions. The second controller is communicatively connected to the first controller and is configured to control the defrost component according to the received feedback signal.

[0005] In certain embodiments, when the first controller is in the abnormal state, the first controller is configured to stop outputting a control signal to the defrost assembly.

[0006] In some embodiments, there are multiple second controllers, and the first controller is communicatively connected to the multiple second controllers respectively.

[0007] In certain embodiments, the first controller or the second controller is further configured to control the power module of the defrost assembly to supply power to the heating module of the defrost assembly, so as to control the operation of the defrost assembly.

[0008] In certain embodiments, the first controller or the second controller is configured to control the defrost assembly based on a temperature difference between a temperature of the vehicle's internal environment and a temperature of the vehicle's external environment and / or a humidity difference between a humidity of the vehicle's internal environment and a humidity of the vehicle's external environment, wherein the temperature of the vehicle's internal environment and the temperature of the vehicle's external environment are detected by a detection module of the defrost assembly, and the humidity of the vehicle's internal environment and the humidity of the vehicle's external environment are detected by a detection module of the defrost assembly.

[0009] In certain embodiments, when the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller or the second controller is further configured to control the low-voltage power distribution module of the defrost assembly to supply power to the heating module of the defrost assembly.

[0010] In certain embodiments, when the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller or the second controller is further configured to control the low-voltage power distribution module to supply power to the electric heating wire of the heating module.

[0011] In certain embodiments, when the temperature difference is greater than a preset temperature and / or the humidity difference is greater than a preset humidity, the first controller or the second controller is further configured to control the high-voltage power distribution module of the defrost assembly to supply power to the heating module of the defrost assembly.

[0012] In certain embodiments, the heating module also includes an electroplated film, and when the temperature difference is greater than a preset temperature and / or the humidity difference is greater than a preset humidity, the first controller or the second controller is also configured to control the high-voltage power distribution module of the defrost assembly to supply power to the electroplated film of the heating module.

[0013] In some embodiments, the first controller is a first domain controller, and / or the second controller is a second domain controller.

[0014] An embodiment of the present invention provides a defrost system, which includes a defrost assembly and a defrost control device according to any one of the above embodiments.

[0015] An embodiment of the present invention provides a vehicle, the vehicle comprising a defrost system of any one of the above embodiments or a defrost control device of any one of the above embodiments, the vehicle further comprising a vehicle body, the defrost control device or the defrost system being arranged on the vehicle body.

[0016] In the defrost control device, defrost system and vehicle of the embodiment of the present invention, the first controller can control the defrost component under normal conditions, and cannot normally control the operation of the defrost component under abnormal conditions, and outputs a feedback signal to the outside. The second controller can control the defrost component according to the received feedback signal to replace the control of the defrost component by the first controller. When the first controller cannot control the defrost component, the second controller can realize the function of controlling the defrost, thus avoiding the situation that the defrost function cannot be realized when the first controller cannot control the operation of the defrost component, making the function of the defrost control device safer and more reliable.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of a defrost control device and a defrost system according to an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of a defrost control device and a defrost system according to an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of a defrost control device and a defrost system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the relevant technical field, the vehicle defrost system is mainly controlled by a main controller or a control unit, and other controllers cannot control the defrost system. When there is a problem with the controller signal communication of the defrost system, the controller cannot transmit the signal to realize the defrost function, making the defrost and defogger ineffective, affecting the driving vision of the vehicle, and in serious cases affecting the driving safety of the vehicle.

[0024] With the continuous increase of automobile functions and the increasing complexity of functions, the number of ECUs (electronic control units) in automobiles has also increased rapidly. The architecture using a large number of ECU modules will lead to low computing efficiency, high data latency, and intricate wiring harnesses. It is impossible to ensure the rapid response ability of the car in the face of various emergencies, and the safety is not enough. The installation of domain controllers has become a development trend. The domain controller integrates multiple ECUs, and the vehicle can remove multiple controllers, making the whole vehicle lightweight and improving the efficiency of the whole vehicle. The centralized electronic and electrical architecture of the automobile domain refers to an architecture that divides the car into several functional blocks according to its functions, and each functional block is built with the domain controller as the main building. Multiple domain controllers are required to manage the whole vehicle system. The automotive defrost system is usually controlled by a domain controller to control the windshield heating function to realize the defrost function, while other domain controllers generally cannot control the defrost system. When there is a problem with the signal communication of the domain controller, the domain controller may be unable to transmit signals to control the defrost system, making the defrost and defogger ineffective, greatly affecting the driving vision, and seriously affecting driving safety.

[0025] See also Figure 1An embodiment of the present invention provides a defrost control device 100, including a first controller 10 and a second controller 20. The first controller 10 is configured to control a defrost component 30 of a vehicle under normal conditions and output a feedback signal under abnormal conditions. The second controller 20 is communicatively connected to the first controller 10, and the second controller 20 is configured to control the defrost component 30 according to the received feedback signal.

[0026] Specifically, the defrost component 30 is used to realize the defrosting function. A heater and a fan may be provided in the defrost component 30. When the defrost component 30 starts working, the heater and the fan of the defrost component 30 work, and defrosting can be achieved by outputting warm air from the fan or heating by the heater.

[0027] The first controller 10 can be a control unit or a domain controller of a plurality of control units. When the first controller is in a normal state, the first controller can control the defrost assembly 30 to realize the defrosting function. The first controller 10 can control the defrost assembly 30 to start working, or control the defrost assembly 30 to stop working or control the working power of the defrost assembly 30. When the first controller 10 is in an abnormal state, the first controller 10 cannot control the defrost assembly 30. The first controller 10 may be unable to control the defrost assembly 30 to start working, or may be unable to control the defrost assembly 30 to stop working or unable to control the working power of the defrost assembly 30. The first controller 10 itself or external reasons can cause the first controller 10 to be in an abnormal state. For example, the first controller 10 is a domain controller of a plurality of control units. The first controller 10 itself causes the first controller 10 to be in an abnormal state. There is a communication problem between the control units inside the first controller 10, which causes the first controller 10 to be unable to control the defrost assembly 30 to work, so that the first controller 10 cannot control the defrost assembly 30, so that the first controller 10 is in an abnormal state. Due to external reasons of the first controller 10, the first controller 10 is in an abnormal state, the first controller 10 receives a forced sleep signal causing the first controller 10 to be in a sleep state and unable to control the defrost component 30, or the power supply of the first controller 10 receives a forced power-off signal and the first controller 10 is unable to defrost the component 30.

[0028] The second controller 20 can be a control unit or a domain controller of a plurality of control units. The second controller 20 can be the same as the first controller 10 or different from the first controller 10. The second controller 20 can be connected to the first controller 10 through wireless transmission or CAN FD bus communication, and is used to receive the feedback signal output by the first controller 10. The second controller 20 determines that the first controller 10 is in an abnormal state according to the received feedback signal, the first controller 10 cannot control the defrost assembly 30, and the second controller 20 needs to control the defrost assembly 30 instead of the first controller 10. The second controller 20 can also determine the control that the first controller 10 should originally implement according to the feedback signal, so that the second controller 20 controls the defrost assembly 30 according to the control that should originally be implemented. For example, the original first controller needs to control the start of the defrost assembly 30. Since the first controller 10 is in an abnormal state and cannot control the defrost assembly 30, the second controller 20 can determine that the first controller 10 should originally control the start of the defrost assembly 30 according to the feedback signal output by the first controller 10, and then the second controller 20 controls the start of the defrost assembly 30. The second controller 20 can also control the first controller 10 according to the feedback signal to control the stopping of the defrost component and the working power of the defrost component.

[0029] In this way, when the first controller 10 itself is in an abnormal state, it cannot normally control the operation of the defrost assembly 30. At this time, the second controller 20 can realize the function of controlling the defrost, thus avoiding the situation that the defrost function cannot be realized when the first controller 10 cannot properly control the operation of the defrost assembly 30, making the function of the defrost control device 100 safer and more reliable. It also avoids the situation that the driving vision and driving safety of the vehicle are affected due to the failure of defrosting and defogger.

[0030] In certain embodiments, when the first controller 10 is in an abnormal state, the first controller 10 is configured to stop outputting a control signal to the defrost assembly 30 .

[0031] Specifically, when the first controller 10 is in an abnormal state, it can be considered that the first controller 10 cannot control the defrost assembly 30, and the second controller 20 replaces the first controller 10 to control the defrost assembly 30. However, at this time, the first controller 10 may still output a control signal to the defrost assembly 30, and the control signal output by the first controller 10 to the defrost assembly 30 is likely to be an erroneous control signal, which will affect the control of the defrost assembly 30 by the second controller 20, so that the defrost assembly 30 cannot work normally or the second controller 20 cannot control the working power of the defrost assembly 30. For example, the first controller 10 should originally control the start of the defrost assembly 30, but because the first controller 10 is in an abnormal state, the first controller 10 outputs a feedback signal to the second controller 20, and also outputs a control signal to control the defrost assembly 30 to stop working. The second controller 20 controls the start of the defrost assembly 30 according to the received feedback signal, so that the defrost assembly 30 receives the erroneous control signal output by the first controller, which affects the normal operation of the defrost assembly 30.

[0032] In this way, when the first controller 10 is in an abnormal state, the output channel of the first controller 10 can be closed to stop the first controller 10 from outputting control signals to the defrost assembly 30 , thereby avoiding affecting the control work of the second controller 20 on the defrost assembly 30 .

[0033] In certain embodiments, the defrost control device 100 further includes a plurality of second controllers 20 , and the first controller 10 is communicatively connected to the plurality of second controllers 20 , respectively.

[0034] Specifically, the defrost control device 100 may include a plurality of second controllers 20, which may be the same controller or different controllers. Each second controller 20 may be connected to the first controller 10 for communication, each second controller 20 may receive a feedback signal output by the first controller 10, and control the defrost assembly 30 according to the received feedback signal. Each second controller 20 may control the defrost assembly 30 instead of the first controller 10 when the first controller 10 is in an abnormal state. In the case where one or several of the second controllers 20 fail to control the defrost assembly 30, the other second controllers 20 may still control the defrost assembly 30 instead of the first controller 10, thereby increasing the safety and reliability of the function of the defrost control device 100.

[0035] Among the multiple second controllers 20, the second controller 20 that cannot control the operation of the defrost component 30 can also be considered to be in an abnormal state. The second controller 20 in the abnormal state can also send a feedback signal to the outside, and other second controllers 20 that are not in the abnormal state can control the defrost component 30 when receiving the feedback signal. If the second controller 20 suddenly changes from a normal state to an abnormal state when the defrost component 30 is in operation, it can be considered that the second controller is unable to control the operation of the defrost component 30. At this time, the second controller 20 stops outputting control signals to the defrost component 30 to avoid outputting erroneous control signals to control the defrost component 30, and transmits feedback signals to the outside, while other second controllers 20 that are not in the abnormal state can receive the feedback signal and control the defrost component 30 according to the feedback signal.

[0036] In this way, the second controller 20 can be set to multiple, and each second controller 20 can replace the first controller 10 to realize the control function of the defrost component 30 when it is not in an abnormal state, thereby increasing the safety and reliability of the function of the defrost control device 100.

[0037] See also Figure 2 In some embodiments, the first controller 10 or the second controller 20 is further configured to control the power module 31 of the defrost assembly 30 to supply power to the heating module 32 of the defrost assembly 30 to control the operation of the defrost assembly 30 .

[0038] Specifically, the defrost assembly 30 includes a power module 31 and a heating module 32. The power module 31 is used to supply power to the heating module 32. When the power module 31 supplies power to the heating module 32, the defrost assembly 30 realizes the defrosting function. The greater the working power of the heating module 32, the more heat the heating module 32 generates, and the more obvious the defrosting effect of the defrost assembly 30. The heating module 32 can achieve the defrosting effect by outputting warm air through a fan, and the heating module 32 can also directly generate heat to defrost.

[0039] The first controller 10 or the second controller 20 can control the operation of the defrost assembly 30 by controlling the power supply module 31 to supply power to the heating module 32. The first controller 10 or the second controller 20 can control the power supply of the power module 31 to the heating module 32 by controlling the power supply module 31 to power on or off. A connection switch can also be provided between the power module 31 and the heating module 32, and the first controller 10 or the second controller 20 controls the power supply of the power module 31 to the heating module 32 by controlling the connection switch.

[0040] In this way, the first controller 10 or the second controller 20 controls the defrost assembly 30 by controlling the power supply module 31 to supply power to the heating module 32 .

[0041] In certain embodiments, the first controller 10 or the second controller 20 is configured to control the defrost assembly 30 based on a temperature difference between a temperature of the vehicle's interior environment and a temperature of the vehicle's exterior environment and / or a humidity difference between a humidity of the vehicle's interior environment and a humidity of the vehicle's exterior environment, wherein the temperature of the vehicle's interior environment and the temperature of the vehicle's exterior environment are detected by a detection module of the defrost assembly 30, and the humidity of the vehicle's interior environment and the humidity of the vehicle's exterior environment are detected by a detection module of the defrost assembly 30.

[0042] Specifically, the detection module of the defrost assembly 30 may include a temperature detection module and a humidity detection module. The temperature detection module may be used to detect the temperature of the vehicle's internal environment and external environment, and the humidity detection module may be used to detect the humidity of the vehicle's internal environment and external environment. The values ​​detected by the detection modules may be used to obtain the temperature difference and humidity difference between the vehicle's internal environment and external environment. The temperature detection module and the humidity detection module may be detected by corresponding temperature sensors and humidity sensors.

[0043] When the temperature difference or humidity difference between the internal environment of the vehicle and the external environment is large, frost and fog will be generated on the vehicle surface. Generally, when the temperature difference or humidity difference between the internal environment of the vehicle and the external environment is large, it can be considered that the frost and fog generated on the vehicle surface is large. Therefore, the first controller 10 or the second controller 20 can judge the degree of frost generated on the vehicle surface according to the temperature difference or humidity difference between the internal environment of the vehicle and the external environment, and then implement corresponding control according to the degree of frost generated on the vehicle surface.

[0044] In this way, by detecting the temperature and humidity values ​​detected by the detection module, the temperature difference and humidity difference between the internal environment and the external environment of the vehicle can be obtained, the degree of frost generated on the vehicle surface can be obtained, and the defrost component 30 can be controlled according to the degree of frost generated on the vehicle surface.

[0045] See also Figure 3 In some embodiments, the defrost assembly 30 includes a low-voltage power distribution module 33 and a heating module 32. When the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller 10 or the second controller 20 is also configured to control the low-voltage power distribution module 33 of the defrost assembly 30 to supply power to the heating module 32 of the defrost assembly 30.

[0046] Specifically, when the temperature difference between the vehicle interior environment and the exterior environment is lower than a preset temperature, or when the humidity difference between the vehicle interior environment and the exterior environment is lower than a preset humidity, it can be considered that the degree of frost generated on the vehicle surface is relatively light. When the degree of frost generated on the vehicle surface is relatively light, the heating module 32 can be operated at low power to achieve the defrosting function.

[0047] In this way, when the temperature difference is less than the preset temperature and / or the humidity difference is less than the preset humidity, the heating module 32 can operate at low power, which can meet the defrosting requirements and reduce the consumption of electricity compared to the heating module 32 operating at high power.

[0048] See also Figure 3 In some embodiments, when the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller 10 or the second controller 20 is also configured to control the low-voltage power distribution module 33 to supply power to the electric heating wire 322 of the heating module 32.

[0049] Specifically, when the degree of frost generated on the vehicle surface is relatively light, the defrosting effect can be achieved by supplying power to the electric heating wire 322 to heat the electric heating wire 322. Generally, the rated working voltage of the electric heating wire 322 is relatively small, and the low-voltage power distribution module 33 can meet the power supply demand of the electric heating wire 322 and the defrosting demand.

[0050] In this way, when the temperature difference is less than the preset temperature and / or the humidity difference is less than the preset humidity, the electric heating wire 322 is powered by the low-voltage power distribution module 33, so that the electric heating wire 322 is heated for defrosting, which can reduce the consumption of electric energy while meeting the defrosting requirements.

[0051] See also Figure 3 In some embodiments, when the temperature difference is greater than a preset temperature and / or the humidity difference is greater than a preset humidity, the first controller 10 or the second controller 20 is also configured to control the high-voltage distribution module 35 of the defrost assembly 30 to supply power to the heating module 32 of the defrost assembly 30.

[0052] Specifically, when the temperature difference between the vehicle's internal environment and the external environment is greater than a preset temperature, or when the humidity difference between the vehicle's internal environment and the external environment is greater than a preset humidity, it can be considered that the degree of frost generated on the vehicle surface is relatively serious. In the case where the degree of frost generated on the vehicle surface is relatively serious, the defrosting effect of the heating module 32 under low power conditions is not ideal. At this time, the heating module 32 can be operated under high power conditions to achieve the defrosting function to meet the defrosting requirements. For example, in the case where the degree of frost generated on the vehicle window surface is relatively serious, it affects the driving field of vision and driving safety. At this time, rapid defrosting is required. At this time, the heating module 32 can be operated under high power conditions to quickly defrost.

[0053] In this way, when the temperature difference is greater than the preset temperature and / or the humidity difference is greater than the preset humidity, it can be considered that the degree of frost generated on the vehicle surface is relatively serious. At this time, the heating module 32 is operated at high power to improve the defrosting effect.

[0054] See also Figure 3 In some embodiments, the heating module 32 also includes an electroplated film 324. When the temperature difference is greater than a preset temperature and / or the humidity difference is greater than a preset humidity, the first controller 10 or the second controller 20 is also configured to control the high-voltage distribution module 35 to supply power to the electroplated film 324 of the heating module 32.

[0055] Specifically, when the degree of frost on the vehicle surface is relatively serious, rapid defrosting is required. At this time, a relatively high-power electric heating element can be used. Generally, the rated working voltage of the electroplating film 324 is relatively large, the heating power is relatively large, and the defrosting effect is better. When the degree of frost on the window surface is relatively serious, high voltage is distributed to the electroplating film 324 to remove the frost on the window glass at the fastest speed, so that the driver's field of vision can be clearly seen in the shortest time, avoiding affecting driving safety.

[0056] In this way, when the temperature difference is greater than the preset temperature and / or the humidity difference is greater than the preset humidity, the high-voltage distribution module 35 distributes power to the electroplated film 324, allowing the electroplated film 324 to be heated and defrosted, thereby improving the defrosting effect and quickly removing frost from the vehicle's window glass, thereby allowing the driver's field of vision to be clearly visible in the shortest time and avoiding affecting driving safety.

[0057] In some embodiments, the power supply module 31 can supply power to the heating module 32 through the low-voltage distribution module 33 and the high-voltage distribution module 35. The heating module 32 includes an electric heating wire 322 and an electroplating film 324. When the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller 10 or the second controller 20 is also configured to control the low-voltage distribution module 33 to supply power to the electric heating wire 322. When the temperature difference is greater than the preset temperature and / or the humidity difference is greater than the preset humidity, the first controller 10 or the second controller 20 is also configured to control the high-voltage distribution module 35 to supply power to the electroplating film 324.

[0058] Specifically, when the temperature difference is less than the preset temperature and / or the humidity difference is less than the preset humidity, it can be considered that the frost generated is relatively light, and the low-voltage power distribution module 33 supplies power to the electric heating wire 322, so that the electric heating wire 322 is heated and defrosted, which can meet the defrosting requirements and reduce the consumption of electric energy. When the temperature difference is greater than the preset temperature and / or the humidity difference is greater than the preset humidity, it can be considered that the frost generated is relatively serious, and the high-voltage power distribution module 35 supplies power to the electroplating film 324, so that the electroplating film 324 is heated and defrosted, which can improve the defrosting effect and quickly remove the frost on the vehicle window glass, so that the driver's field of vision can be clearly visible in the shortest time and avoid affecting driving safety.

[0059] In this way, the defrosting assembly 30 can always meet the defrosting demand, so that the windows on the vehicle are clearly visible, without affecting the user's driving vision and driving safety, and at the same time, it will not always maintain a high-voltage power supply to cause excessive power loss. Under the premise of meeting the defrosting demand, the power loss is reduced.

[0060] In some embodiments, the first controller 10 is a first domain controller, and / or the second controller 20 is a second domain controller.

[0061] An embodiment of the present invention provides a defrost system 200, which includes a defrost assembly 30 and a defrost control device 100 of any embodiment.

[0062] An embodiment of the present invention provides a vehicle, the vehicle includes a defrost system 200 of any one of the above embodiments or a defrost control device 100 of any one of the above embodiments, and the vehicle also includes a vehicle body, and the defrost control device 100 or the defrost system 200 is arranged on the vehicle body.

[0063] Specifically, a plurality of domain controllers may be included in the vehicle, and each domain controller integrates a plurality of control units. For example, battery thermal management control, high-voltage electronic control, etc. are concentrated in one domain controller, and air conditioning thermal management, cockpit entertainment system, etc. are concentrated in another domain controller. The control units inside each domain controller are connected in communication, and each domain controller is also connected in communication. The control unit for managing the defrost system 200 is set in a domain controller. When there is a communication problem inside the domain controller, the domain controller for managing the defrost system 200 cannot control the defrost function. At this time, the domain controller for managing the defrost system 200 outputs a feedback signal to the outside, and other domain controllers can receive the feedback signal and control the defrost system 200 instead of the domain controller for managing the defrost system 200.

[0064] In this way, the situation that the defrosting function cannot be realized when the domain controller managing the defrosting system 200 cannot properly control the operation of the defrosting component 30 is avoided, making the function of the defrosting control device 100 safer and more reliable. It also avoids the situation that the driving vision and driving safety of the vehicle are affected due to the failure of defrosting and defogger.

[0065] In the defrost control device 100, the defrost system 200 and the vehicle of the embodiment of the present invention, the first controller 10 can control the defrost assembly 30 under normal conditions, and cannot normally control the operation of the defrost assembly 30 under abnormal conditions, and outputs a feedback signal to the outside. The second controller 20 can control the defrost assembly 30 according to the received feedback signal to replace the control of the defrost assembly 30 by the first controller 10. When the first controller 10 cannot control the defrost assembly 30, the second controller 20 can realize the function of controlling the defrost, thereby avoiding the situation that the defrost function cannot be realized when the first controller 10 cannot control the operation of the defrost assembly 30, making the function of the defrost control device safer and more reliable, thereby avoiding the situation that the driving vision and driving safety of the vehicle are affected due to the failure of defrosting and defogger.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0067] In addition, the term "connection" should be understood in a broad sense, for example, it can include fixed connection, detachable connection, or integral connection; it can include direct connection, indirect connection through an intermediate medium, and internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0070] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A defrost control device for a vehicle, characterized in that: The defrost control device comprises: a first controller configured to control a defrost assembly of the vehicle in a normal state and output a feedback signal in an abnormal state; A second controller is communicatively connected to the first controller, and the second controller is configured to control the defrost assembly according to the received feedback signal.

2. The defrost control device according to claim 1, characterized in that: When the first controller is in the abnormal state, the first controller is configured to stop outputting a control signal to the defrost assembly.

3. The defrost control device according to claim 1, characterized in that: There are multiple second controllers, and the first controller is communicatively connected to the multiple second controllers respectively.

4. The defrost control device according to claim 1, characterized in that: The first controller or the second controller is further configured to control the power module of the defrost component to supply power to the heating module of the defrost component so as to control the operation of the defrost component.

5. The defrost control device according to claim 1, characterized in that: The first controller or the second controller is configured to control the defrost component based on the temperature difference between the temperature of the vehicle's internal environment and the temperature of the vehicle's external environment and / or the humidity difference between the humidity of the vehicle's internal environment and the humidity of the vehicle's external environment, the temperature of the vehicle's internal environment and the temperature of the vehicle's external environment being detected by a detection module of the defrost component, and the humidity of the vehicle's internal environment and the humidity of the vehicle's external environment being detected by a detection module of the defrost component.

6. The defrost control device according to claim 5, characterized in that: When the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller or the second controller is further configured to control the low-voltage power distribution module of the defrost assembly to supply power to the heating module of the defrost assembly.

7. The defrost control device according to claim 6, characterized in that: When the temperature difference is less than a preset temperature and / or the humidity difference is less than a preset humidity, the first controller or the second controller is further configured to control the low-voltage power distribution module to supply power to the electric heating wire of the heating module.

8. The defrost control device according to claim 5, characterized in that: When the temperature difference is greater than a preset temperature and / or the humidity difference is greater than a preset humidity, the first controller or the second controller is further configured to control the high-voltage power distribution module of the defrost assembly to supply power to the heating module of the defrost assembly.

9. The defrost control device according to claim 8, characterized in that: When the temperature difference is greater than a preset temperature and / or the humidity difference is greater than a preset humidity, the first controller or the second controller is further configured to control the high-voltage power distribution module of the defrost assembly to supply power to the electroplated film of the heating module.

10. The defrost control device according to any one of claims 1 to 9, characterized in that: The first controller is a first domain controller, and / or the second controller is a second domain controller.

11. A defrosting system, characterized in that: The defrost system comprises a defrost assembly and a defrost control device according to any one of claims 1-10.

12. A vehicle, characterized in that: The vehicle comprises the defrost system according to claim 11 or the defrost control device according to any one of claims 1 to 10; The vehicle further comprises a vehicle body, and the defrost system or the defrost control device is arranged on the vehicle body.

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