Vehicle relay deicing method, apparatus, device, and storage medium

Abstract

The application belongs to the technical field of vehicle control, and discloses a vehicle relay deicing method, device, equipment and storage medium. The application detects that the temperature outside the vehicle is less than a preset freezing point threshold value and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold value when the vehicle is powered off, sets a wake-up time according to the temperature difference between the inside and outside of the vehicle, obtains the changed temperature difference between the inside and outside of the vehicle when the wake-up time is reached, controls the vehicle to be powered on if the changed temperature difference between the inside and outside of the vehicle is less than a preset detection threshold value, and detects whether the relay in the vehicle is normally turned on. If the relay is not normally turned on, the coil of the relay is powered on to realize deicing. Since the temperature difference between the inside and outside of the vehicle is monitored when it is detected that the relay may have a risk of contact icing, deicing of the relay is performed when the temperature difference between the inside and outside of the vehicle is small and the relay cannot be normally turned on, so that the relay will not be iced again after deicing is completed, thereby ensuring that the vehicle can be powered on in time when the user needs to use the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a method, apparatus, device, and storage medium for de-icing a vehicle relay. Background Technology

[0002] In cold weather, users usually turn on the heater when using the vehicle. In this scenario, after the vehicle is powered off, the metal contacts cool down faster than the air, causing water vapor near the contacts to condense into ice. This phenomenon is very common in vehicle relays. Once the relay contacts freeze, the vehicle will not be able to power on and run the next time the user uses it.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main objective of this invention is to provide a method, apparatus, device, and storage medium for de-icing vehicle relays, aiming to solve the technical problem that vehicles cannot be powered on in a timely manner when users use them after the relay contacts have frozen.

[0005] To achieve the above objectives, the present invention provides a vehicle relay de-icing method, the method comprising the following steps:

[0006] If, when the vehicle is powered off, the outside temperature is detected to be lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold, then the wake-up time is set according to the temperature difference between the inside and outside of the vehicle.

[0007] Upon reaching the wake-up time, the changed temperature difference between the inside and outside of the vehicle is obtained;

[0008] If the temperature difference between the inside and outside of the vehicle after the change is detected to be less than the preset detection threshold, the vehicle is powered on and the relays in the vehicle are checked to see if they are properly connected.

[0009] If the circuit is not properly connected, the coil of the relay is energized to remove the ice.

[0010] Optionally, the step of setting the wake-up time based on the temperature difference between the inside and outside of the vehicle includes:

[0011] The temperature difference between the inside and outside of the vehicle is matched with multiple temperature difference ranges in the preset time setting strategy to obtain the target temperature difference range;

[0012] Obtain the detection interval duration corresponding to the target temperature difference range;

[0013] The wake-up time is set according to the detection interval duration.

[0014] Optionally, the step of energizing the relay coil to achieve de-icing if the connection is not normal includes:

[0015] If the connection is not established, obtain the humidity value inside the vehicle;

[0016] The in-vehicle humidity value is compared with a preset humidity threshold to determine the target current value;

[0017] The relay coil is energized based on the target current value to achieve de-icing.

[0018] Optionally, the step of detecting whether the relay in the vehicle is properly connected includes:

[0019] Obtain the current value collected by the current sensor in the vehicle;

[0020] If the current value collected by the current sensor is less than the preset collection threshold, it is determined that the relay in the vehicle is not properly connected.

[0021] Optionally, after the step of energizing the relay coil to achieve de-icing if the connection is not normal, the method further includes:

[0022] Check whether the relays in the vehicle are properly connected;

[0023] If the connection is made normally, the de-icing process is considered complete, and the vehicle is powered off.

[0024] Optionally, after the step of detecting whether the relay in the vehicle is properly connected, the method further includes:

[0025] If the connection is not established, obtain the duration of the defrosting process.

[0026] If the duration of the de-icing process is greater than or equal to the preset duration threshold, a relay fault message will be displayed.

[0027] Optionally, after the step of obtaining the de-icing duration if the connection is not normal, the method further includes:

[0028] If the de-icing duration is less than a preset duration threshold, the process returns to the step of energizing the relay coil if the connection is not normal, in order to achieve de-icing.

[0029] Furthermore, to achieve the above objectives, the present invention also proposes a vehicle relay de-icing device, which includes the following modules:

[0030] The detection module is used to set a wake-up time based on the temperature difference between the inside and outside of the vehicle if the outside temperature is lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold when the vehicle is powered off.

[0031] The data acquisition module is used to acquire the changed temperature difference between the inside and outside of the vehicle when the wake-up time is reached;

[0032] The verification module is used to control the vehicle to power on and detect whether the relays in the vehicle are properly connected if the detected temperature difference between the inside and outside of the vehicle after the change is less than a preset detection threshold.

[0033] The de-icing module is used to energize the coil of the relay if the connection is not normal, so as to achieve de-icing.

[0034] Furthermore, to achieve the above objectives, the present invention also proposes a vehicle relay de-icing device, which includes: a processor, a memory, and a vehicle relay de-icing program stored in the memory and executable on the processor. When the vehicle relay de-icing program is executed by the processor, it implements the steps of the vehicle relay de-icing method as described above.

[0035] Furthermore, to achieve the above objectives, the present invention also proposes a computer-readable storage medium storing a vehicle relay de-icing program, wherein the vehicle relay de-icing program, when executed, implements the steps of the vehicle relay de-icing method described above.

[0036] This invention addresses the issue of whether, when the vehicle is powered off, the outside temperature is detected to be below a preset freezing point threshold, and the temperature difference between the inside and outside of the vehicle is detected to be greater than a preset temperature difference threshold. If so, a wake-up time is set based on this temperature difference. Upon reaching the wake-up time, the changed temperature difference between the inside and outside of the vehicle is acquired. If the changed temperature difference is detected to be less than a preset detection threshold, the vehicle is powered on, and the status of the relays in the vehicle is checked. If the relays are not properly connected, the relay coils are energized to de-ic. By monitoring the temperature difference between the inside and outside of the vehicle when a risk of relay contact icing is detected, and performing relay de-icing when the temperature difference is small and the relay cannot be properly connected, the relays are prevented from icing again after de-icing, ensuring that the vehicle can be powered on promptly when needed. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of an electronic device in the hardware operating environment involved in the embodiments of the present invention;

[0038] Figure 2 This is a flowchart illustrating the first embodiment of the vehicle relay de-icing method of the present invention;

[0039] Figure 3 This is a flowchart illustrating the second embodiment of the vehicle relay de-icing method of the present invention;

[0040] Figure 4 This is a schematic diagram of the relay state according to an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of vehicle hardware settings according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the complete relay de-icing process according to an embodiment of the present invention;

[0043] Figure 7 This is a structural block diagram of the first embodiment of the vehicle relay de-icing device of the present invention.

[0044] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0046] Reference Figure 1 , Figure 1 This is a schematic diagram of the vehicle relay de-icing device structure in the hardware operating environment involved in the embodiments of the present invention.

[0047] like Figure 1 As shown, the electronic device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk drive. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0048] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on the electronic device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0049] like Figure 1As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a vehicle relay de-icing program.

[0050] exist Figure 1 In the electronic device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the electronic device of the present invention can be set in the vehicle relay de-icing device. The electronic device calls the vehicle relay de-icing program stored in the memory 1005 through the processor 1001 and executes the vehicle relay de-icing method provided in the embodiment of the present invention.

[0051] This invention provides a method for de-icing a vehicle relay, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of a vehicle relay de-icing method according to the present invention.

[0052] In this embodiment, the vehicle relay de-icing method includes the following steps:

[0053] Step S10: If, when the vehicle is powered off, the outside temperature is detected to be lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold, then the wake-up time is set according to the temperature difference between the inside and outside of the vehicle.

[0054] It should be noted that the execution subject of this embodiment can be the vehicle relay de-icing device (hereinafter referred to as the de-icing device) or the vehicle itself. The vehicle relay de-icing device can be a controller in the vehicle, such as an ECU controller or a BCM controller, or other devices that can achieve the same or similar functions. This embodiment does not limit this. In this embodiment and the following embodiments, the vehicle relay de-icing method of the present invention is described using the vehicle relay de-icing device as an example.

[0055] It should be noted that the preset freezing point threshold and preset temperature difference threshold can be preset by the de-icing equipment administrator. For example, the preset freezing point threshold can be set to 0℃, and the preset temperature difference threshold can be set to 5℃. The temperature difference between the inside and outside of the vehicle can be the difference between the ambient temperature inside the vehicle and the ambient temperature outside the vehicle. Specifically, the ambient temperature outside the vehicle can be collected by an external temperature sensor, and the ambient temperature inside the vehicle can be collected by an internal temperature sensor.

[0056] In actual use, if the outside temperature is lower than the preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than the preset temperature difference threshold, it indicates that the temperature of the external environment where the vehicle is located is low and the temperature difference between the inside and outside of the vehicle is too large. The vehicle's relays are prone to contact icing. In order to ensure that the vehicle can be powered on in time when the user uses the vehicle next time, it is necessary to ensure that the relays are de-iced before the user uses the vehicle. However, since the temperature difference between the inside and outside of the vehicle is too large, even if de-icing is performed, icing may occur again later. Therefore, the relays need to be de-iced when the temperature difference between the inside and outside of the vehicle is smaller. In order to avoid consuming too much vehicle energy through continuous monitoring and to ensure that the temperature difference between the inside and outside of the vehicle can be detected in time when it drops to a suitable range, a wake-up time can be set according to the temperature difference between the inside and outside of the vehicle. The temperature difference between the inside and outside of the vehicle can be detected again when the wake-up time is reached.

[0057] In practical implementation, since the vehicle needs to be woken up every time the temperature difference between the inside and outside of the vehicle is acquired, and frequent vehicle wake-ups increase battery power consumption, in order to reduce power loss, the step of setting the wake-up time based on the temperature difference between the inside and outside of the vehicle described in this embodiment may include:

[0058] The temperature difference between the inside and outside of the vehicle is matched with multiple temperature difference ranges in the preset time setting strategy to obtain the target temperature difference range;

[0059] Obtain the detection interval duration corresponding to the target temperature difference range;

[0060] The wake-up time is set according to the detection interval duration.

[0061] It should be noted that the preset time setting strategy can include multiple temperature difference ranges, each corresponding to a different detection interval. The larger the temperature difference between the inside and outside of the vehicle, the longer it takes for the temperature to drop to a suitable range. Therefore, the larger the temperature difference value included in a temperature difference range, the longer the corresponding detection interval. The specific number of temperature difference ranges included in the preset time setting strategy, and the corresponding detection interval for each range, can be preset by the de-icing equipment administrator according to actual needs. Setting the wake-up time based on the detection interval can be achieved by adding the current time to the detection interval.

[0062] For example: Suppose the preset time strategy is "if the temperature difference between inside and outside the vehicle is greater than 40℃, the corresponding detection interval is 5 minutes; if the temperature difference between inside and outside the vehicle is greater than 20℃, the corresponding detection interval is 3 minutes; if the temperature difference between inside and outside the vehicle is greater than 5℃, the corresponding detection interval is 1 minute". If the temperature difference between inside and outside the vehicle is 25℃, then the corresponding target temperature difference range is a temperature difference between inside and outside the vehicle greater than 20℃, and the corresponding detection interval is 3 minutes. If the current time is 9:00, then the wake-up time can be set to 9:03.

[0063] Step S20: When the wake-up time is reached, obtain the changed temperature difference between the inside and outside of the vehicle.

[0064] Understandably, as time passes after the vehicle is powered off, the interior temperature will gradually approach the exterior temperature, and the temperature difference between the inside and outside of the vehicle will gradually decrease. If the current moment reaches the wake-up time, it means that a certain amount of time has passed since the moment when the exterior temperature was detected to be lower than the preset freezing point threshold and the temperature difference between the inside and outside of the vehicle was greater than the preset temperature difference threshold. At this time, the changed temperature difference between the inside and outside of the vehicle can be obtained, and it can be determined whether it can be guaranteed that the relay will not freeze again after de-icing.

[0065] Step S30: If the temperature difference between the inside and outside of the vehicle after the change is detected to be less than the preset detection threshold, the vehicle is powered on and the relays in the vehicle are checked to see if they are properly connected.

[0066] It should be noted that the preset detection threshold can be set by the de-icing equipment manager according to actual needs, for example, the preset detection threshold can be set to 5℃.

[0067] Understandably, if the detected temperature difference between the inside and outside of the vehicle is less than the preset detection threshold, it means that the temperature difference between the inside and outside of the vehicle is already very small. At this time, the relay is de-iced. After the de-icing is completed, the relay will not freeze again. At this time, it is possible to further check whether the relay in the vehicle is properly connected to determine whether de-icing is necessary.

[0068] In a specific implementation, a current sensor can be connected to the circuit behind the de-icing equipment and the relay. The value collected by the current sensor is used to determine whether the relay in the vehicle can be properly connected. In this case, the step of detecting whether the relay in the vehicle is properly connected as described in this embodiment can include:

[0069] Obtain the current value collected by the current sensor in the vehicle;

[0070] If the current value collected by the current sensor is less than the preset collection threshold, it is determined that the relay in the vehicle is not properly connected.

[0071] It should be noted that the preset collection threshold can be the current value in the circuit loop formed when the vehicle's relay is normally turned on. The preset collection threshold can be calibrated in advance by the personnel in charge of the de-icing equipment.

[0072] Understandably, if the current value collected by the current sensor is less than the preset collection threshold, it means that the vehicle's relay has formed a large resistance value due to not being properly connected, resulting in a smaller current value in the overall circuit. Therefore, it can be determined that the relay in the vehicle is not properly connected.

[0073] Step S40: If the connection is not normal, the coil of the relay is energized to achieve de-icing.

[0074] Understandably, if a relay in a vehicle is not properly connected, it means that the relay contacts are frozen. In this case, you can try energizing the relay coil to heat it up and remove the ice.

[0075] In practical use, the relay coil can be continuously energized for a preset time to ensure that the relay can complete the de-icing process. The preset time can be set by the de-icing equipment manager according to actual needs. For example, energizing the relay for five minutes is usually sufficient for de-icing, but to ensure that de-icing is completed, the preset time can be set to ten minutes.

[0076] In a specific implementation, to ensure that the efficiency of relay de-icing is not too low, step S40 in this embodiment may include:

[0077] If the connection is not established, obtain the humidity value inside the vehicle;

[0078] The in-vehicle humidity value is compared with a preset humidity threshold to determine the target current value;

[0079] The relay coil is energized based on the target current value to achieve de-icing.

[0080] It should be noted that in high-humidity environments, relay contacts are more prone to icing, and the resulting ice blocks are larger. Conversely, in low-humidity environments, relay contacts are less likely to ic, and the resulting ice blocks are smaller. When energizing the relay coil, a higher input current results in greater coil heating and higher de-icing efficiency. Therefore, to balance de-icing efficiency with energy consumption, the specific degree of icing can be determined by monitoring the vehicle's interior humidity level. This allows for the determination of the required input current. The vehicle's interior humidity level can then be compared with a preset humidity threshold to determine the target current value. Finally, the relay coil is energized according to the target current value to achieve de-icing.

[0081] In practical use, the operator of the de-icing equipment can preset at least one humidity threshold according to actual needs. Specifically, the de-icing equipment can adjust the current input to the relay coil by adjusting the resistance value of its internal variable resistor (decrease the variable resistor value if a large current is needed, and increase the variable resistor value if a small current is needed). The number of preset humidity thresholds that the operator can set depends on how many different current levels the de-icing equipment supports. For example, if the de-icing equipment supports two different current levels, then one preset humidity threshold can be set.

[0082] This embodiment detects that if, when the vehicle is powered off, the outside temperature is lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold, a wake-up time is set based on the temperature difference. Upon reaching the wake-up time, the changed temperature difference between the inside and outside of the vehicle is acquired. If the changed temperature difference is lower than a preset detection threshold, the vehicle is powered on, and the status of the relays in the vehicle is checked. If the relays are not properly connected, the relay coils are energized to de-ic. Because the temperature difference between the inside and outside of the vehicle is monitored when there is a risk of relay contact icing, and de-icing of the relays is performed when the temperature difference is small and the relays cannot be properly connected, the relays will not ic up again after de-icing, ensuring that the vehicle can be powered on promptly when the user needs it.

[0083] refer to Figure 3 , Figure 3 This is a flowchart illustrating a second embodiment of a vehicle relay de-icing method according to the present invention.

[0084] Based on the first embodiment described above, the vehicle relay de-icing method of this embodiment further includes, after step S40:

[0085] Step S50: Check whether the relays in the vehicle are properly connected.

[0086] Understandably, during the de-icing process, it is possible to detect whether de-icing has been completed in order to minimize vehicle energy consumption and avoid resource waste.

[0087] In practical implementation, during the de-icing process by energizing the relay coil, a check can be performed at regular intervals to verify whether the relay in the vehicle is properly connected. For example, after energizing the relay coil, a check can be performed every 10 seconds to verify whether the relay in the vehicle is properly connected. The method for verifying whether the relay is properly connected is the same as the method described above, and will not be repeated here.

[0088] Step S60: If the connection is normal, it is determined that de-icing is complete, and the vehicle is powered off.

[0089] In actual use, if the vehicle's relay can be connected normally, it means that the relay can operate normally. At this time, it means that the ice on the vehicle's relay contacts has been cleared. Therefore, it can be determined that the de-icing is complete. After that, the vehicle can be powered off to reduce unnecessary energy consumption and avoid resource waste.

[0090] Of course, after determining that de-icing is complete, the relay coil is energized for a short period of time to ensure that the relay de-icing is as complete as possible. For example, after determining that de-icing is complete, the relay coil is energized for 30 seconds to ensure that the relay de-icing is as complete as possible.

[0091] If the relay fails to connect properly, it indicates that de-icing needs to continue. However, if the relay is damaged or malfunctioning, it cannot connect properly. In this case, to avoid excessive energy waste caused by continuously attempting de-icing, step S50 in this embodiment may further include:

[0092] If the connection is not established, obtain the duration of the defrosting process.

[0093] If the duration of the de-icing process is greater than or equal to the preset duration threshold, a relay fault message will be displayed.

[0094] It should be noted that the de-icing duration can be the duration for which the relay coil is energized when the vehicle's relay is detected as not properly connected. The preset duration threshold can be set by the de-icing equipment administrator based on the average time it takes for the relay to complete de-icing. For example, if the average time for the vehicle's relay to complete de-icing is 5 minutes, then the preset duration threshold can be set to twice the average time, i.e., 10 minutes.

[0095] In practical use, if the de-icing duration is greater than or equal to the preset duration threshold, it means that the relay has been continuously energized for a longer period than the relay's average duration, and the relay still cannot be connected. Therefore, it can be determined that the relay has malfunctioned. Thus, a relay malfunction message can be displayed to remind the user that the relay is faulty and needs to be repaired.

[0096] The relay fault message can be displayed on a software application (such as a mobile APP) that is linked to the vehicle.

[0097] If the de-icing duration is less than the preset duration threshold, it indicates that the relay may not be able to connect properly because the energizing time is too short and de-icing is not yet complete. Therefore, the process can return to step S40 to continue energizing and attempt de-icing. In this embodiment, after obtaining the de-icing duration if normal connection is not achieved, the process may further include:

[0098] If the de-icing duration is less than a preset duration threshold, the process returns to the step of energizing the relay coil if the connection is not normal, in order to achieve de-icing.

[0099] To facilitate understanding, we will now combine... Figure 4 , 5The following points will be explained, but this scheme will not be limited. Figure 4 This is a schematic diagram of the relay state in this embodiment. Figure 5 This is a schematic diagram of the vehicle hardware setup in this embodiment. Figure 6 This is a schematic diagram of the complete relay de-icing process in this embodiment.

[0100] like Figure 4 As shown, when the relay contacts are frozen (i.e., in an icy state), in order to accelerate the melting of ice, the BCM controller (i.e., the aforementioned de-icing device) can adjust the resistance value of its variable resistor to a small resistance, output a large current, increase the heat generation of the coil in the relay, and accelerate the melting of ice to achieve rapid de-icing. After the ice melts, the relay state will change from the icy state to the connected state. At this time, the BCM controller can adjust the resistance value of its internal variable resistor to a large resistance, output a small current, reduce the heat generation of the relay coil, and return it to the normal working state of the relay.

[0101] To implement the vehicle relay de-icing method provided in this embodiment, the connection relationships between the various hardware components in the vehicle are as follows: Figure 5 As shown, the outside temperature sensor is used to collect the outside ambient temperature, the inside temperature sensor is used to collect the inside ambient temperature, and the inside humidity sensor is used to collect the inside ambient humidity (i.e., the inside humidity value). Each sensor inputs the collected values ​​to the BCM controller (i.e., the de-icing device). The BCM controller is connected to the Relay Box (i.e., the housing component that houses the relays). A current sensor is also connected to the rear of its circuit loop. The current sensor can detect the current value in the circuit and input the detected current value into the BCM controller.

[0102] Specifically, the complete execution flow of the relay de-icing method described in this embodiment is as follows: Figure 6As shown, after the vehicle is powered off, the de-icing equipment will detect the internal and external temperatures and the humidity inside the vehicle. If the external temperature is less than 0℃ (i.e., the preset freezing point threshold) and the difference between the internal and external temperatures is greater than 5℃ (i.e., the preset temperature difference threshold), it indicates that the relay may be icing up. At this time, the temperature difference between the internal and external temperatures can be compared with various intervals, and the corresponding wake-up time can be set according to the comparison results (wherein, if the temperature difference is greater than 40℃, the internal and external temperatures will be detected again after 5 minutes; if the temperature difference is greater than 20℃, the internal and external temperatures will be detected again after 3 minutes; if the temperature difference is greater than 5℃, the temperature will be detected again after 1 minute). If the final difference between the interior and exterior temperatures is no more than 5°C (i.e., the preset detection threshold), the vehicle is powered on. At this time, the relay is checked for normal connection (the current collected by the current sensor is less than the preset collection threshold yA). If it is not normally connected, the target current value (i.e., high current or low current) is selected according to the humidity inside the vehicle to perform de-icing, and the relay is continuously checked for normal connection. If the relay is still not normally connected after 10 minutes (i.e., the preset continuous threshold), it is indicated that the relay has other faults. If the relay is normally connected, it is determined that de-icing is completed, and then the vehicle is powered off.

[0103] This embodiment detects whether the relays in the vehicle are properly connected; if they are properly connected, de-icing is determined to be complete, and the vehicle is powered off. Because the relays in the vehicle are checked for proper connection after de-icing, and the vehicle is powered off when they are properly connected, power-off is ensured quickly after de-icing is completed, avoiding unnecessary energy consumption.

[0104] Furthermore, this embodiment of the invention also proposes a storage medium storing a vehicle relay de-icing program, which, when executed by a processor, implements the steps of the vehicle relay de-icing method described above.

[0105] Reference Figure 7 , Figure 7 This is a structural block diagram of the first embodiment of the vehicle relay de-icing device of the present invention.

[0106] like Figure 7 As shown, the vehicle relay de-icing device proposed in this embodiment of the invention includes:

[0107] The detection module 10 is used to set a wake-up time based on the temperature difference between the inside and outside of the vehicle if the outside temperature is less than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold when the vehicle is powered off.

[0108] The data acquisition module 20 is used to acquire the changed temperature difference between the inside and outside of the vehicle when the wake-up time is reached;

[0109] The verification module 30 is used to control the vehicle to power on and detect whether the relays in the vehicle are properly connected if the detected temperature difference between the inside and outside of the vehicle after the change is less than a preset detection threshold.

[0110] The de-icing module 40 is used to energize the coil of the relay if it is not properly connected, so as to achieve de-icing.

[0111] This embodiment detects that if, when the vehicle is powered off, the outside temperature is lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold, a wake-up time is set based on the temperature difference. Upon reaching the wake-up time, the changed temperature difference between the inside and outside of the vehicle is acquired. If the changed temperature difference is lower than a preset detection threshold, the vehicle is powered on, and the status of the relays in the vehicle is checked. If the relays are not properly connected, the relay coils are energized to de-ic. Because the temperature difference between the inside and outside of the vehicle is monitored when there is a risk of relay contact icing, and de-icing of the relays is performed when the temperature difference is small and the relays cannot be properly connected, the relays will not ic up again after de-icing, ensuring that the vehicle can be powered on promptly when the user needs it.

[0112] Furthermore, the detection module 10 is also used to match the temperature difference between the inside and outside of the vehicle with multiple temperature difference intervals in a preset time setting strategy to obtain a target temperature difference interval; obtain the detection interval duration corresponding to the target temperature difference interval; and set a wake-up time according to the detection interval duration.

[0113] Furthermore, the de-icing module 40 is also used to acquire the humidity value inside the vehicle if it is not properly connected; compare the humidity value inside the vehicle with a preset humidity threshold to determine a target current value; and energize the coil of the relay based on the target current value to achieve de-icing.

[0114] Furthermore, the verification module 30 is also used to acquire the current value collected by the current sensor in the vehicle; if the current value collected by the current sensor is less than a preset acquisition threshold, it is determined that the relay in the vehicle is not properly connected.

[0115] Furthermore, the verification module 30 is also used to obtain the current value passing through the preset variable resistor in the vehicle; if the current value passing through the preset variable resistor is greater than the preset current threshold, it is determined that the relay in the vehicle is not properly connected.

[0116] Furthermore, the de-icing module 40 is also used to detect whether the relay in the vehicle is properly connected; if it is properly connected, it is determined that de-icing is completed and the vehicle is powered off.

[0117] Furthermore, the de-icing module 40 is also used to obtain the de-icing duration if the connection is not normal; if the de-icing duration is greater than or equal to the preset duration threshold, a relay fault prompt message is displayed.

[0118] Furthermore, the de-icing module 40 is also used to return to the step of energizing the coil of the relay if the de-icing duration is less than a preset duration threshold, so as to achieve the de-icing step.

[0119] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solution of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0120] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0121] In addition, for technical details not described in detail in this embodiment, please refer to the vehicle relay de-icing method provided in any embodiment of the present invention, which will not be repeated here.

[0122] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0123] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0124] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0125] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for de-icing a vehicle relay, characterized in that, The vehicle relay de-icing method includes the following steps: If, when the vehicle is powered off, the outside temperature is detected to be lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold, then the wake-up time is set according to the temperature difference between the inside and outside of the vehicle. Upon reaching the wake-up time, the changed temperature difference between the inside and outside of the vehicle is obtained; If the temperature difference between the inside and outside of the vehicle after the change is detected to be less than the preset detection threshold, the vehicle is powered on and the relays in the vehicle are checked to see if they are properly connected. If the circuit is not properly connected, the coil of the relay is energized to remove the ice. The step of energizing the relay coil to de-icing if the connection is not normal also includes: Check whether the relays in the vehicle are properly connected; If the connection is not established, obtain the duration of the defrosting process. If the duration of the de-icing process is greater than or equal to a preset duration threshold, a relay fault message will be displayed.

2. The vehicle relay de-icing method as described in claim 1, characterized in that, The step of setting the wake-up time based on the temperature difference between the inside and outside of the vehicle includes: The temperature difference between the inside and outside of the vehicle is matched with multiple temperature difference ranges in the preset time setting strategy to obtain the target temperature difference range; Obtain the detection interval duration corresponding to the target temperature difference range; The wake-up time is set according to the detection interval duration.

3. The vehicle relay de-icing method as described in claim 1, characterized in that, The step of energizing the relay coil to de-icing if the connection is not normal includes: If the connection is not established, obtain the humidity value inside the vehicle; The in-vehicle humidity value is compared with a preset humidity threshold to determine the target current value; The relay coil is energized based on the target current value to achieve de-icing.

4. The vehicle relay de-icing method as described in claim 1, characterized in that, The steps for detecting whether the relays in the vehicle are properly connected include: Obtain the current value collected by the current sensor in the vehicle; If the current value collected by the current sensor is less than the preset collection threshold, it is determined that the relay in the vehicle is not properly connected.

5. The vehicle relay de-icing method according to any one of claims 1-4, characterized in that, After the step of detecting whether the relay in the vehicle is properly connected, the method further includes: If the connection is made normally, the de-icing process is considered complete, and the vehicle is powered off.

6. The vehicle relay de-icing method as described in claim 1, characterized in that, Following the step of obtaining the de-icing duration if the connection is not normal, the method further includes: If the de-icing duration is less than a preset duration threshold, the process returns to the step of energizing the relay coil if the connection is not normal, in order to achieve de-icing.

7. A vehicle relay de-icing device, characterized in that, The vehicle relay de-icing device includes the following modules: The detection module is used to set a wake-up time based on the temperature difference between the inside and outside of the vehicle if the outside temperature is lower than a preset freezing point threshold and the temperature difference between the inside and outside of the vehicle is greater than a preset temperature difference threshold when the vehicle is powered off. The data acquisition module is used to acquire the changed temperature difference between the inside and outside of the vehicle when the wake-up time is reached; The verification module is used to control the vehicle to power on and detect whether the relays in the vehicle are properly connected if the detected temperature difference between the inside and outside of the vehicle after the change is less than a preset detection threshold. The de-icing module is used to energize the coil of the relay if the connection is not normal, so as to achieve de-icing; The de-icing module is also used to detect whether the relays in the vehicle are properly connected; if they are not properly connected, the de-icing duration is obtained. If the duration of the de-icing process is greater than or equal to a preset duration threshold, a relay fault message will be displayed.

8. A vehicle relay de-icing device, characterized in that, The vehicle relay de-icing device includes: a processor, a memory, and a vehicle relay de-icing program stored in the memory and executable on the processor. When the vehicle relay de-icing program is executed by the processor, it implements the steps of the vehicle relay de-icing method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a vehicle relay de-icing program, which, when executed, implements the steps of the vehicle relay de-icing method as described in any one of claims 1-6.

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