Trailer management method and vehicle

Abstract

The application provides a trailer management method and vehicle, and relates to the technical field of trailers; the method comprises the following steps: in response to detecting a triggering event of a preset button, detecting a fault condition of the vehicle, and recording the duration of the triggering event; in response to detecting that the power transmission device of the vehicle has a fault, and the duration reaches a first duration threshold, adjusting the on-off state of the fixed shipping mode of the vehicle; in response to detecting that the power transmission device of the vehicle does not have a fault, and the duration reaches a second duration threshold, adjusting the on-off state of the towing and dragging mode of the vehicle; the application can accurately select a trailer mode and identify the switching intention of a user, so that the actual fault condition of the vehicle matches the corresponding trailer mode, the probability of misoperation of the user on the vehicle is reduced, secondary damage of the vehicle is prevented, the safety and rescue adaptability of trailer operation are improved, and the judgment accuracy of the operation intention of the user and the reliability of mode switching are ensured.

Description

Technical Field

[0001] This application relates to the field of trailer technology, and more particularly to a trailer management method and vehicle. Background Technology

[0002] When a vehicle is involved in a sudden accident or malfunction, a rescue vehicle can be used to assist the vehicle and ensure its safety.

[0003] When a vehicle is towed or transported, it needs to be switched to trailer mode; however, user misoperation or accidental touch may cause the vehicle to accidentally exit trailer mode or switch incorrectly, affecting the towing efficiency and transport safety of the rescued vehicle, and in severe cases, it may also damage the vehicle's power transmission device. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a trailer management method and vehicle to solve the safety problems caused by the accidental exit or incorrect switching of the trailer mode of the vehicle.

[0005] To achieve the above objectives, this application provides a trailer management method applicable to vehicles. The vehicle's steering wheel has a first button operation area and a second button operation area, both of which are equipped with preset buttons. The method includes:

[0006] In response to the detection of a trigger event of the preset button, the vehicle's fault condition is detected, and the duration of the trigger event is recorded; In response to the detection of a fault in the vehicle's power transmission device, and the duration of the fault reaching a first duration threshold, the on / off state of the vehicle's fixed transport mode is adjusted. In response to the detection that there is no fault in the vehicle's powertrain and the duration reaches a second duration threshold, the activation / deactivation status of the vehicle's traction mode is adjusted. The triggering event is when a preset key in the first key operation area and a preset key in the second key operation area are triggered at the same time, and the first duration threshold is less than the second duration threshold.

[0007] Optionally, the trailer management method further includes: In response to determining that the vehicle has entered towing mode, the trigger mode of the vehicle's power-on / off control switch is adjusted based on the current battery charge level.

[0008] Optionally, adjusting the trigger mode of the vehicle's power-on / off control switch based on the acquired current battery charge includes: In response to determining that the current battery charge is greater than a first charge threshold, the power-down function of the power-on / off control switch is disabled; In response to determining that the current battery charge is less than or equal to a first charge threshold and greater than a second charge threshold, the power-on / off control switch is controlled to switch to a preset triggering mechanism, wherein the preset triggering mechanism is to control the vehicle to power off when the number of triggers of the power-on / off control switch reaches a preset number within a first preset time. In response to determining that the current battery charge is less than or equal to a second charge threshold, the power-down function of the power-on / off control switch is enabled.

[0009] Optionally, the power transmission includes a transfer case and a gearbox, and the method further includes: In response to determining that the vehicle meets preset conditions, the transmission and the transfer case are controlled to enter neutral lock state respectively, so as to prevent the transmission and the transfer case from switching to gears other than neutral. The preset conditions include at least one of the following: The vehicle is powered on and in towing mode. The vehicle is in a power-down state caused by the current charge level of the battery being less than or equal to a second charge threshold.

[0010] Optionally, the trailer management method further includes: In response to determining that the vehicle meets the preset conditions, the electronic parking brake system controlling the vehicle switches to the unlocked mode to release the braking function of the electronic parking brake system on the vehicle. The preset conditions include at least one of the following: The vehicle is powered on and in towing mode. The vehicle is in a power-down state caused by the current charge level of the battery being less than or equal to a second charge threshold.

[0011] Optionally, the power transmission includes a transfer case and a gearbox; The fault conditions of the vehicle being detected include: The fault conditions of the transfer case and the transmission are detected based on the retrieved vehicle's target driving log. If a fault code related to at least one of the transfer case and the transmission is detected in the target vehicle log, then the powertrain is faulty; If no fault codes related to the transfer case and the transmission are detected in the target vehicle log, then the powertrain is not faulty.

[0012] Optionally, the trailer management method further includes: In response to determining that there is no fault in the power transmission device, a confirmation message is generated to prompt the user, and feedback instructions from the user regarding the confirmation message are obtained; In response to a confirmed instruction received within a second preset time, the vehicle is controlled to activate the towing mode. In response to a cancellation command received within a second preset time, or if no feedback command is received within the second preset time, the vehicle is controlled to terminate its entry into towing mode.

[0013] Alternatively, trailer management methods may also include: In response to determining that the vehicle has entered towing mode, the indicator lights associated with the towing mode are turned on, and the vehicle's instrument panel and / or central control screen are controlled to generate a display window to display prompt information. In response to determining that the vehicle is in towing mode off, the indicator lights unrelated to towing mode are turned off after a third preset time, and the display windows used to display prompt information on the vehicle's instrument panel and / or central control screen are turned off.

[0014] Optionally, the trailer management method further includes: In response to determining that the vehicle has entered the fixed transport mode, the electronic parking brake system of the vehicle is controlled to enter the locking mode to lock the wheels of the vehicle. In response to determining that the vehicle is in the fixed transport mode, the electronic parking brake system of the vehicle is controlled to exit the locking mode, thereby controlling the electronic parking brake system to release the lock on the vehicle's wheels.

[0015] Based on the same inventive concept, this application also provides a vehicle including an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method described above when executing the computer program.

[0016] As can be seen from the above, the towing management method and vehicle provided in this application, when a triggering event is detected, can provide reliable judgment conditions for the selection and switching of towing modes by detecting and obtaining the vehicle's fault status and the duration of the triggering event; when a fault is detected in the vehicle's power transmission device and the duration reaches a first duration threshold, by selecting a fixed transport mode and adjusting the on / off state of this mode, the vehicle can accurately adjust the towing mode according to the user's operating intention, avoiding increased towing difficulty and transfer risk due to accidental activation; when no fault is detected in the vehicle's power transmission device and the duration reaches a second duration threshold, by selecting a traction towing mode and adjusting the on / off state of this mode, the vehicle can accurately adjust the towing mode according to the user's operating intention, avoiding increased towing difficulty and towing cost due to accidental activation. This application can accurately select the towing mode and identify the user's switching intention. It combines the fault status of the power transmission device with different duration thresholds for differentiated control, which can match the actual fault situation of the vehicle with the corresponding towing mode, reduce the probability of user misoperation of the vehicle, prevent secondary damage to the vehicle, improve the safety and rescue adaptability of towing operations, and ensure accurate judgment of user operation intention and reliable mode switching. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram showing the positions of the first and second button operation areas on the steering wheel in an embodiment of this application. Figure 2 This is a flowchart of the trailer management method in the embodiments of this application; Figure 3 This is a structural block diagram of the trailer management device in the embodiments of this application; Figure 4 This is a structural block diagram of the electronic device in the embodiments of this application. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] To address unexpected vehicle situations, vehicles can be equipped with a towing mode to enhance the safety of towing operations. Towing methods can be flexibly selected for vehicles in different conditions, and towing modes can be adaptively switched. For example, if a vehicle malfunctions but its gears can be shifted and it can be towed, a towing vehicle can be used for towing, quickly transferring the towed vehicle to a designated area. This method offers advantages such as mobility, high transfer efficiency, low site requirements, and ease of rescue. If the vehicle malfunctions and cannot shift gears or be towed, a flatbed truck can be used for loading and transfer. This method can securely support the malfunctioning vehicle during transport, preventing secondary damage and providing enhanced safety and stability, while also reducing the risk of scrapes and collisions on the road.

[0022] Furthermore, in some scenarios, when a vehicle breaks down while driving in the wild but can be towed, due to limitations such as the terrain, specialized towing equipment like flatbed trucks may be unable to access the area for rescue. In such cases, other vehicles, such as tow trucks, can be used to help the vehicle get out of trouble by towing. To ensure the smooth progress of the towing operation, the vehicle to be towed needs to be switched from its normal driving mode to towing mode, with the transfer case in neutral (N) to cut off the power supply to the front and rear drive axles. This disengages the power transmission from the wheels, allowing for unimpeded towing and preventing damage to the vehicle's power transmission due to towing stress during the towing operation.

[0023] Furthermore, to ensure that the rescued vehicle can move synchronously with the towing vehicle, during towing operations, it is necessary to keep the vehicle powered on and engaged in towing mode, while allowing the user to assist in vehicle control from the driver's cab. However, the user in the rescued vehicle, influenced by their daily driving habits, may easily control the vehicle according to normal driving habits during towing, which can easily lead to misoperation, causing the vehicle to unexpectedly exit towing mode or lose power midway. For example, if the driver switches to power off during towing to shift the transmission back to P (park) and place it in parking mode, the vehicle's electronic parking brake (EPB) system will lock, causing the wheels to lock instantly. Since the rescued vehicle is in a towing state, the huge traction force and the locked wheels create a strong resistance, which can cause instantaneous damage to the vehicle's power transmission.

[0024] In another scenario, when completing a towing operation, the user of the rescued vehicle needs to manually disengage the vehicle from towing mode to prevent disruption to normal vehicle use. However, there is a risk of improper operation during the actual switching process. For example, when the rescued vehicle disengages from towing mode, the transfer case disengages from neutral (N) to transmit power. Since the vehicle lacks effective notification of disengagement, the user may not accurately understand the disengagement status. If the user misoperates the transfer case and mistakenly assumes the gear shift is complete, they may hastily engage drive (D) or reverse (R) gears, directly causing gear grinding in the transfer case and potentially resulting in mechanical damage.

[0025] Furthermore, if a user accidentally triggers a towing mode or other trailer mode during normal driving, the transfer case will quickly shift to neutral (N), causing the front and rear drive axles to lose power and resulting in an instantaneous loss of power. This sudden situation can easily cause panic among users, potentially leading to road safety accidents.

[0026] In view of this, this application provides a trailer management method, in which the vehicle's management controller acts as the executing entity to perform the management method; such as Figure 1 As shown, the vehicle's steering wheel has a first button operation area 1 and a second button operation area 2, both of which are equipped with preset buttons. The first button operation area and the second button operation area can be two independent operation areas that are preset to trigger the trailer mode in the multi-function button area on the left and right sides of the vehicle's steering wheel. The two areas are located on opposite sides of the steering wheel and are independent of each other, so that they can correspond to the user's hand grip position and ensure that the user can trigger it with both hands.

[0027] For example, one of the first button operation area and the second button operation area can be a preset multi-function button area on the left side of the steering wheel, and the other can be a preset multi-function button area on the right side of the steering wheel.

[0028] Furthermore, the preset buttons in the first button operation area and the second operation area can both be physical buttons that are pre-designated as towing mode trigger buttons in that area; for example, the preset button in the first button operation area can be set as a multimedia custom button, and the preset button in the second button operation area can be set as a mute button. The preset buttons in the two areas need to be triggered in conjunction with each other to enable the vehicle to enter the corresponding towing mode, so as to reduce the risk of accidental touch during operation.

[0029] Based on the above, such as Figure 1 and Figure 2 As shown, the management methods mentioned in this application may include: S100: In response to detecting a trigger event of a preset button, detect the vehicle's fault condition and record the duration of the trigger event, wherein the trigger event is when a preset button in the first button operation area and a preset button in the second button operation area are triggered at the same time; In this step, the triggering event may include a first triggering event and a second triggering event. The triggering event is when a preset key in the first key operation area and a preset key in the second key operation area are triggered at the same time. Therefore, the initial time of the first triggering event and the second triggering event are the same. One can be the behavior of the management controller detecting that the user triggers a preset key in the first key operation area and generates a key triggering signal, and the other can be the behavior of the management controller detecting that the user triggers a preset key in the second key operation area and generates a key triggering signal.

[0030] Furthermore, the vehicle's management controller, acting as the execution entity, can monitor the signal changes and operational status of preset buttons in real time while the vehicle is powered on. For example, when the management controller detects that a preset button in the first button operation area is pressed and remains closed, it can determine that a first trigger event has occurred. Simultaneously, when the management controller detects that a preset button in the second button operation area is pressed and remains closed at the same time, it can determine that a second trigger event has occurred, thus confirming that the preset button has triggered a corresponding event. The management controller can also detect vehicle malfunctions to determine the towing mode of the vehicle being rescued and can activate a corresponding timer to record the duration from the start of the trigger event to the current moment, using this as the duration of the trigger event. This ensures that the preset button trigger operation duration is accurately collected and fed back in real time, providing a time-based basis for accurately determining the subsequent switching of the vehicle's towing mode.

[0031] In practice, the management controller can establish a communication connection with the steering wheel button module via the vehicle's CAN bus, receiving status messages from the preset buttons in the first and second button operation areas in real time. When the management controller detects that the preset buttons in both areas have switched from the open to the closed state at the same time, it can detect the current fault type of the vehicle to determine the towing mode and start a timer to record the duration for which the preset buttons in both areas remain closed. When the management controller detects that at least one of the preset buttons in the first and second button operation areas has been released (i.e., the released preset button returns to the open state), the triggering event terminates. Therefore, by executing this step, a basis for determining whether the user intends to control the vehicle's towing mode can be provided, which helps improve the accuracy of judging the intention to switch to towing modes and reduces the probability of user misoperation during operation.

[0032] S200: In response to the detection of a fault in the vehicle's power transmission device and the duration reaching a first duration threshold, the on / off state of the vehicle's fixed transport mode is adjusted. In this step, the vehicle's powertrain is used to provide power to the front and rear axles and can adjust the power axle distribution. The powertrain may include a transfer case and a transmission. Therefore, when the vehicle experiences problems such as the transfer case failing to shift gears, a damaged gear control module, or the transmission jamming or disengaging, it indicates that there is a fault in the vehicle's powertrain.

[0033] The first duration threshold can be preset and used to determine the duration threshold of preset buttons in the two button operation areas; the trigger duration of the trigger event reaching the first duration threshold can be used as one of the judgment conditions for determining whether to adjust the opening and closing status of the vehicle's fixed transport mode, thereby improving the accuracy of switching the vehicle's fixed transport mode and reducing the risk of abnormal opening and closing.

[0034] In practice, the management controller can obtain the vehicle's current fault status and the duration of trigger events. When the management controller detects a fault in the vehicle's power transmission and simultaneously detects that the duration of trigger events occurring on preset buttons in the first and second button operation areas reaches a first duration threshold, it indicates that the user is simultaneously pressing the preset buttons in both operation areas with both hands and maintaining synchronized operation, reflecting the user's intention to switch to towing mode. Since a fault in the vehicle's power transmission is detected, the vehicle is currently unsuitable for towing with a tow truck but is suitable for rescue with a flatbed truck. Therefore, to ensure accurate matching between the rescued vehicle and the rescue method, the management controller can control the switching of the vehicle's current mode and control the opening and closing of its fixed towing mode, thereby enabling the vehicle to accurately adjust its towing mode according to the user's operating intention, avoiding accidental touches that would increase the difficulty of towing and transfer safety.

[0035] It should be noted that the fixed transport mode is a type of towing mode, suitable for transport and rescue operations using a flatbed rescue vehicle. When the fixed transport mode is activated, the management controller can control and lock the vehicle's wheels and doors, increasing the safety of the transported vehicle; and / or activate the vehicle's warning lights to alert surrounding vehicles during transport; and / or generate alarm information to send to the manufacturer or rescue organization for subsequent targeted vehicle repairs. Conversely, when the fixed transport mode is deactivated, the vehicle's wheels and doors can be unlocked, and / or the warning lights can be turned off.

[0036] S300: In response to detecting that there is no fault in the vehicle's power transmission device and the duration reaches a second duration threshold, the control adjusts the on / off state of the vehicle's traction mode, wherein the first duration threshold is less than the second duration threshold.

[0037] In this step, the second duration threshold can be preset and used to determine the duration threshold of the preset buttons in the two button operation areas; the trigger duration of the trigger event reaching the second duration threshold can be used as one of the judgment conditions for determining whether to adjust the opening and closing state of the vehicle's traction mode, thereby improving the accuracy of vehicle traction mode switching and reducing the risk of abnormal opening and closing.

[0038] When the switching conditions for the towing mode are met, the management controller can synchronously send control commands to the on-board control units such as the power transmission unit, vehicle controller, and instrument panel to enable or disable the vehicle's towing mode. In addition, the failure status of the vehicle's power transmission system is one of the reasons for selecting the vehicle's towing mode. Therefore, when the failure of the vehicle is not due to the power transmission system, the vehicle can be controlled to switch to the towing mode to assist in completing the towing operation.

[0039] In practice, the management controller can obtain the vehicle's current fault status and the duration of trigger events. When the management controller detects that there is no fault in the vehicle's power transmission and that the duration of trigger events occurring on preset buttons in the first and second button operation areas reaches a first duration threshold, it indicates that the user is simultaneously pressing the preset buttons in both operation areas with both hands and maintaining synchronous operation, reflecting the user's intention to switch to towing mode. Since no fault is detected in the vehicle's power transmission, and considering factors such as towing costs, the vehicle can be towed by a towing vehicle to achieve the rescue purpose. To ensure accurate matching between the rescued vehicle and the rescue method, the management controller can control and adjust the switching of the vehicle's current mode and control the on / off state of the vehicle's towing mode, thereby enabling the vehicle to accurately adjust its towing mode according to the user's operating intention, avoiding accidental touches that would increase the difficulty and cost of towing.

[0040] It should be noted that when the management controller determines whether to switch the vehicle to towing mode, it can obtain environmental information around the vehicle and the status information of the occupants. By monitoring whether the area where the vehicle is currently located meets the conditions for towing, it can also detect the injury status of the occupants, thereby improving the efficiency and accuracy of the rescue of the rescued vehicle.

[0041] It should be noted that the fixed transport mode of the vehicle is a type of towing mode, which is suitable for towing and transfer by a towing and rescue vehicle. When the towing mode is activated, the management controller can drive the transfer case to perform a gear shifting action, so that the transfer case and transmission are in neutral (N) to avoid affecting the transport of the vehicle and prevent secondary damage, and / or at least one of the control instruments and the central control screen outputs the activation and deactivation prompt information of the towing mode to notify the user in the vehicle, so that the vehicle can be accurately controlled according to the user's operating intention.

[0042] Furthermore, when the management controller controls the vehicle to switch to towing mode, it needs to control the transfer case and the gear position of the transmission, which makes the switching time of the towing mode relatively long; while the fixed transport mode aims to change the locking state of the wheels, so it takes relatively less time. Therefore, for the first time threshold and the second time threshold, the first time threshold can be less than the second time threshold.

[0043] The towing management method provided in this application, when a triggering event is detected, can provide reliable judgment conditions for the selection and switching of towing modes by detecting and obtaining the vehicle's fault status and the duration of the triggering event; when a fault is detected in the vehicle's power transmission device and the duration reaches a first duration threshold, by selecting a fixed transport mode and adjusting the on / off state of this mode, the vehicle can accurately adjust the towing mode according to the user's operating intention, avoiding increased towing difficulty and transfer risk due to accidental activation; when no fault is detected in the vehicle's power transmission device and the duration reaches a second duration threshold, by selecting a traction towing mode and adjusting the on / off state of this mode, the vehicle can accurately adjust the towing mode according to the user's operating intention, avoiding increased towing difficulty and towing cost due to accidental activation. This application can accurately select the towing mode and identify the user's switching intention. It combines the fault status of the power transmission device with different duration thresholds for differentiated control, which can match the actual fault situation of the vehicle with the corresponding towing mode, reduce the probability of user misoperation of the vehicle, prevent secondary damage to the vehicle, improve the safety and rescue adaptability of towing operations, and ensure accurate judgment of user operation intention and reliable mode switching.

[0044] In some embodiments, based on the trailer management method provided in this application, the method further includes: in response to determining that the vehicle has entered the towing mode, adjusting the trigger mode of the vehicle's power-on / off control switch according to the current battery charge level.

[0045] Specifically, the vehicle's battery can be the vehicle's power battery, and the battery's current charge level can be the battery's current remaining energy, which can be collected in real time by the battery management system and fed back to the management controller. The triggering mode of the power-on / off control switch controls the triggering mechanism of the power-on / off control switch according to the current vehicle condition, so that the power-on / off control switch triggers the power-off function through different control strategies. For example, the triggering mode of the power-on / off control switch may include triggering methods such as allowing one-button power-off, long press power-off, frequent triggering of power-off, and prohibiting power-off.

[0046] After the vehicle enters towing mode, to prevent accidental power loss due to user error triggering the power on / off control switch inside the vehicle, which could lead to problems such as shifting the transmission to P gear, locking the electronic parking brake system, and damage to the power transmission, the management controller can obtain the current battery level in real time. After obtaining the current battery level, it can switch the triggering mode of the power on / off control switch according to the different battery level ranges. This changes the triggering method of the power on / off control switch, which helps users cope with driving situations when the vehicle has different battery levels, avoids accidental operation, ensures the safety of towing operations, and takes into account the power-off and recharging needs when the vehicle is low on battery.

[0047] In practice, the management controller can obtain the current battery level of the vehicle through the vehicle's battery management system. It can then compare the current battery level with a preset battery level threshold to obtain the corresponding comparison result. After obtaining the comparison result, the vehicle's management controller can adjust the triggering mode of the power-on / off control switch according to the comparison result. This allows the power-on / off control switch to execute different triggering strategies for the vehicle when the battery level is different, which is beneficial for the reasonable control of the vehicle's power-on / off behavior and reduces the risk of the vehicle being accidentally powered off.

[0048] In some embodiments, based on the trailer management method provided in this application, adjusting the trigger mode of the vehicle's power-on / off control switch according to the obtained current battery charge includes: S401: In response to determining that the current battery charge is greater than a first charge threshold, disable the power-down function of the power-up / down control switch; In this step, the management controller obtains the vehicle battery's charge information through the battery management system. When the current battery charge is greater than a preset first charge threshold, it indicates that the vehicle battery has sufficient charge and the vehicle has a stable power supply capability during towing. Therefore, the risk of the vehicle running out of power is relatively small, and the probability of needing to recharge midway or stopping due to power failure is relatively low. At this time, the management controller can directly disable the normal power-down function of the power-on / off control switch, so that the vehicle will not perform a power-down action when the user presses, holds, or operates the power-on / off control switch normally. This avoids the user accidentally touching the power-down switch and causing the vehicle to shut down unexpectedly, ensuring the stable operation of the vehicle in towing mode.

[0049] In practice, when the management controller determines that the current battery charge is greater than the first charge threshold, it can send a power-off disable command to the control unit responsible for controlling the power-on / off control switch trigger mode, i.e., to the power management unit. This disables the power-off signals from single-trigger, short-press trigger, and long-press trigger modes of the power-on / off control switch, ensuring that the vehicle remains powered on during towing. This preserves the necessary power supply and control system operation, while also maintaining the vehicle's transmission and electronic parking brake system in a safe state to prevent accidental locking.

[0050] S402: In response to determining that the current battery charge is less than or equal to a first charge threshold and greater than a second charge threshold, the power-on / off control switch is switched to a preset trigger mechanism, wherein the preset trigger mechanism is to control the vehicle to power off when the number of triggers of the power-on / off control switch reaches a preset number within a first preset time. In this step, the preset triggering mechanism of the power-on / off control switch can be a pre-set power-off triggering method to prevent accidental touch. The preset triggering mechanism can be such that the triggering condition is met after multiple consecutive power-on / off control switches within a first preset time, thereby controlling the vehicle to perform the power-off action.

[0051] The first preset duration can be a pre-set time window, which can be used to determine whether the user continuously triggers the power-on / off control switch within the time window, so as to identify the user's true intention to power off and avoid erroneous triggering of power-on / off operations.

[0052] The management controller can obtain the vehicle battery's charge information through the battery management system. If the current charge of the vehicle battery is less than or equal to a first charge threshold and greater than a second charge threshold, it indicates that the current charge of the vehicle battery is in a moderate state, that is, there is no obvious depletion, but it is not yet fully charged. In order to ensure the safety of the vehicle during towing and prevent the risk of excessive depletion of the vehicle during towing, the management controller can switch the trigger mode of the power-on / off control switch to a preset trigger mechanism. This means that the power-on / off control switch will no longer respond to single or regular power-off operations, but will instead receive multiple triggers to the power-on / off control switch within a first preset time. After the number of triggers reaches the preset number, the vehicle is allowed to perform a power-off operation, thereby accurately distinguishing between the user's accidental touch behavior and the true intention to power off.

[0053] In practice, the first preset time can be set to 5 seconds, and the preset number of times the power-on / off control switch can be set to 3. When the power-on / off control switch switches to the preset trigger mechanism and it is detected that the power-on / off control switch is pressed 3 or more times in 5 seconds, it is determined that the user actively powers off the vehicle and the power-off operation is performed. All other triggering behaviors are determined to be invalid operations, so as to prevent accidental power-off while retaining the user's controllability over the vehicle's active power-off.

[0054] S403: In response to determining that the current battery charge is less than or equal to a second charge threshold, the power-down function of the power-on / off control switch is enabled.

[0055] In this step, the management controller can obtain the vehicle battery's charge information through the battery management system. If the current charge of the vehicle battery is less than or equal to a first charge threshold and greater than a second charge threshold, it indicates that the vehicle is at risk of being undercharged. During towing, this may cause the control system of the vehicle being towed to fail, and the steering and braking assist functions to be interrupted, affecting towing safety. At this time, the management controller can restore the normal power-off function of the vehicle's power-on / off control switch, allowing the user to control the vehicle to power off through normal operation. This allows the user to control the vehicle to power off in time and recharge midway, thereby protecting the vehicle battery and electrical system, improving the convenience of charging the vehicle when it is undercharged, and reducing the complexity of recharging the vehicle in towing mode.

[0056] In practice, the management controller removes the control restrictions on the power on / off switches and restores their normal power-off logic. Users can control the vehicle to power off using the vehicle's normal operating methods to cope with towing operations that are longer or longer. One-button power-off via the power on / off switches facilitates timely recharging when the vehicle's battery is low, preventing battery depletion or damage to related electrical components due to continuous power consumption during towing, and further improving the safety and reliability of towing operations.

[0057] It should be noted that, in this embodiment, the first power threshold and the second power threshold can be two reference thresholds for different levels of battery power preset in the management controller, wherein the first power threshold is greater than the second power threshold; the first power threshold can be used to determine that the vehicle battery is in a fully charged state, for example, it can be any power value between 70% and 80% of the total battery power, and the second power threshold can be used to determine that the vehicle battery is in a low power state, for example, it can be any power value between 30% and 40% of the total battery power. By comparing the real-time collected current battery power with the first power threshold and the second power threshold respectively, the management controller can divide different power ranges, thereby executing the corresponding triggering strategy for the power-on / off control switch.

[0058] In some embodiments, the power transmission includes a transfer case and a transmission. Based on the trailer management method provided in this application, the method further includes: in response to determining that the vehicle meets preset conditions, controlling the transmission and the transfer case to enter neutral state respectively, so as to prohibit the transmission and the transfer case from switching to gears other than neutral. The preset conditions include at least one of the following: The preset conditions can be: the vehicle is powered on and in towing mode is enabled; The preset condition can also be: the vehicle is in a power-down state caused by the current battery charge being less than or equal to a second charge threshold.

[0059] For a vehicle, when the transmission is in neutral, the power transmission within the transmission is cut off, disconnecting the engine's power transmission. At this time, the transmission does not restrict the wheels, and the wheels can still rotate freely in conjunction with the transmission mechanism. When the transmission is in non-neutral, its internal power transmission remains engaged or locked, restricting the free rotation of the wheels through the transmission connection. Similarly, when the transfer case is in neutral, the power transmission between the transfer case and the front and rear axles is cut off, completely disconnecting the power transmission between the transmission and the axles, allowing the wheels to rotate freely completely free from the constraints of the transmission system. When the transfer case is in non-neutral, it maintains power engagement with the front and rear axles, maintaining the power transmission path and thus restricting the free rotation of the wheels. Therefore, preferably, keeping both the transmission and transfer case in neutral during towing ensures that the rescued vehicle can move forward stably.

[0060] When controlling the vehicle to engage towing mode, to ensure the vehicle's safety during towing, the transmission and transfer case can be forcibly locked in neutral. This avoids safety hazards caused by user misoperation of gear shifting due to driving habits or accidental gear shifting during towing. It also prevents the transmission from accidentally shifting into P, D, R, or other non-neutral gears during towing, avoiding problems such as changes in power transmission or wheel lock-up due to abnormal gear switching, and protecting the vehicle's power transmission system from damage caused by the impact of towing force.

[0061] To ensure the smooth operation of towing operations, the management controller can perform targeted control of the transfer case and transmission according to different vehicle operating conditions. Taking the transmission as an example, the neutral lock state of the transmission is activated, so that the transmission maintains neutral under the corresponding operating conditions and prohibits switching to other gears other than neutral, so as to avoid affecting the normal operation of towing operations and the driving safety of the vehicle. Specifically, when the vehicle is in towing mode, it is powered on. The management controller controls the transmission to enter neutral lock mode, which can prevent problems such as accidental gear shifting that could interfere with towing operations. When the vehicle enters power-off mode because the current battery charge is less than or equal to the second charge threshold, in order to prevent the vehicle from automatically shifting to P gear during power-off and causing wheel lock-up, the management controller can control the transmission to continue to maintain neutral lock mode after the vehicle is powered off, and continuously prohibit it from shifting to any gear other than neutral. In this way, even if the vehicle is unexpectedly powered off during towing, it will not affect the normal operation of towing operations. Therefore, when the management controller determines that the vehicle meets the preset conditions, it can control the transfer case and transmission to enter neutral lock mode, prohibiting the transmission and transfer case from shifting to gears other than neutral, ensuring the stability of towing operations throughout the entire process.

[0062] In practice, after the vehicle's management controller determines that the vehicle meets preset conditions, i.e., the vehicle is powered on and in towing mode, or the vehicle is powered off because the current battery charge is less than or equal to the second charge threshold, it can send neutral lock commands to the transfer case control unit and the transmission control unit via the vehicle's CAN bus. After the two control units receive the neutral lock commands, they can control the locking gear actuator to execute the gear lock command and block external shift signals. The gear signals can include, but are not limited to, shift lever operation, touch shift operation, and other shift triggering methods, so that the transfer case and transmission gears cannot be changed, keeping the transfer case and transmission in neutral, ensuring the gear stability of the towing operation, and meeting the travel requirements of the towing operation.

[0063] Furthermore, when the management controller detects that the vehicle has exited the towing mode and the battery power has returned to the normal range and the low battery power-off state has been lifted, the management controller can send a neutral lock release command to the transmission control unit and the transfer case control unit respectively, so that the transmission and transfer case can resume gear shifting function and ensure that the user can operate the vehicle normally.

[0064] In some embodiments, based on the trailer management method provided in this application, the trailer management method further includes: in response to determining that the vehicle meets preset conditions, controlling the electronic parking brake system of the vehicle to switch to an unlocked mode to release the braking function of the electronic parking brake system on the vehicle. The preset conditions include at least one of the following: The preset conditions can be: the vehicle is powered on and in towing mode is enabled; The preset condition can also be: the vehicle is in a power-down state caused by the current battery charge being less than or equal to a second charge threshold.

[0065] Specifically, for a vehicle, the locking mode of the electronic parking brake system locks the parking brake, causing the wheels to be held by the brake calipers and unable to rotate freely. Conversely, the unlocking mode of the electronic parking brake system allows the parking brake to be released, without locking the wheels, so the wheels can rotate freely. Therefore, to ensure the safety of the vehicle being towed, the electronic parking brake system needs to be in the unlocking mode.

[0066] Furthermore, when towing a rescued vehicle, by setting the non-locking mode of the electronic parking brake system to the working mode during towing and canceling the automatic triggering functions such as self-locking and power-off locking of the electronic parking brake system, the electronic parking brake system can be prevented from locking the wheels due to accidental power-off or low battery power failure during towing. In conjunction with the transfer case and the neutral lock of the transmission, the wheels can be ensured to rotate freely, thereby eliminating the risk of damage to the vehicle's power transmission device and ensuring the controllability and safety of the towing process.

[0067] To ensure smooth towing operations, the management controller can control the electronic parking brake system according to different vehicle operating conditions, switching it to an unlocked mode to prevent its braking function from interfering with the normal implementation of towing operations. Specifically, when the vehicle is in towing mode and powered on, the management controller switches the electronic parking brake system to an unlocked mode, preventing interference with towing operations due to user misoperation of the electronic parking brake system. When the vehicle enters a powered-off state due to the battery's current charge being less than or equal to a second charge threshold, to prevent the electronic parking brake system from automatically engaging parking mode and locking the wheels, the management controller can switch the electronic parking brake system to an unlocked mode. This ensures that even if the vehicle experiences an unexpected power failure during towing, the wheels will not be hindered from rotating freely, thus not affecting the normal operation of towing operations. Therefore, when the management controller determines that the vehicle meets preset conditions, it can control the electronic parking brake system to enter an unlocked mode to ensure the stability of the towing operation throughout.

[0068] In practice, the management controller transmits signals to the electronic parking brake system via the CAN bus. When the vehicle meets the preset conditions, it sends a mode switching command to the electronic parking brake system, controlling it to switch from locked mode to unlocked mode so that the electronic parking brake system will not perform active locking action. At the same time, when the management controller detects that the vehicle has entered a power-off state due to the battery level being lower than the second power threshold, it can control the electronic parking brake system to maintain the unlocked mode, so as to prevent the braking function of the electronic parking brake system from affecting the normal operation of towing.

[0069] Furthermore, when the management controller detects that the vehicle has exited the towing mode and determines that the vehicle meets the normal parking trigger conditions, the management controller controls the electronic parking brake system to switch to normal mode or locked mode to meet the user's normal braking or parking needs.

[0070] It should be noted that, in order to ensure the driving safety of the rescued vehicle during towing operations, regardless of whether the vehicle is in towing mode or not, the brake pedal will maintain its braking function if it is functioning normally. This ensures that the rescued vehicle has the means to brake in case of an emergency and guarantees its driving safety.

[0071] In some embodiments, based on the trailer management method provided in this application, the trailer management method further includes: when it is determined that the trailer mode of the vehicle is activated, controlling the vehicle's assisted driving mode to be deactivated, so that the assisted driving mode and the trailer mode cannot coexist; wherein the trailer mode includes, but is not limited to, fixed transport mode and towing mode.

[0072] Specifically, a vehicle's assisted driving mode can be preset and calibrated based on normal driving conditions. However, the vehicle's perception capabilities, decision-making methods, and control logic when assisted driving mode is activated have relatively low adaptability to vehicles under towing conditions. Therefore, if the vehicle maintains assisted driving mode while in towing mode, it can easily cause problems such as target recognition errors, abnormal speed control, and mismatched steering intervention in the vehicle being towed, thus affecting the stability and safety of the towing process. Therefore, regardless of the vehicle's towing mode, forcibly disabling assisted driving mode can avoid conflicts arising from the coexistence of assisted driving mode and towing mode, eliminate driving risks caused by erroneous intervention of the assisted driving system, and ensure that the towing process is entirely under the active control of the user.

[0073] In practice, after determining that the vehicle has entered trailer mode, the management controller can send a function shutdown command to the driver assistance control unit via the vehicle CAN bus. After receiving the function shutdown command, the driver assistance control unit can control the vehicle to exit driver assistance-related functions and disable the corresponding triggering conditions and control commands. When the management controller detects that the vehicle has exited trailer mode and returned to normal driving conditions, the management controller can send a driver assistance mode activation command to the driver assistance control unit according to the actual situation, so that the driver assistance mode can be re-enabled, thereby meeting the driver assistance needs of the vehicle while driving.

[0074] In some embodiments, based on the content described in S100, the powertrain includes a transfer case and a transmission, and detecting vehicle malfunctions includes: S101: Detect transfer case and transmission faults based on the retrieved vehicle's target driving log. In this step, the vehicle's driving log can be real-time recorded driving status, operating parameters, fault information, and control commands, including fault information of the powertrain, and can be pre-stored in the vehicle's preset data storage unit. The target driving log can be a portion of the driving log, retrieved to determine whether to engage towing mode and select a specific mode type. For example, the powertrain includes a transfer case and a transmission; therefore, the target driving log can record the vehicle's operating data within the preset time window closest to the current moment, and includes at least fault information of the powertrain system, but not limited to vehicle speed, gear information, battery level information, fault code information, and powertrain status information, facilitating the management controller's determination of whether the vehicle and its powertrain are faulty based on this operating data.

[0075] Specifically, when the management controller determines that a vehicle has a malfunction, it indicates that the vehicle has a greater need for towing operations, and the user's intention to switch the vehicle to towing mode is more obvious, thus providing corresponding data support for whether the vehicle should be towed; furthermore, when the cause of the malfunction is determined to be a fault in the power transmission device, it indicates that the vehicle cannot be towed, so the vehicle can be controlled to switch to fixed transport mode; when the cause of the malfunction is determined to be a fault other than the power transmission device, it indicates that towing operations can be carried out, so the vehicle can be controlled to switch to traction towing mode.

[0076] In practice, the management controller can retrieve the target driving log within the preset time window closest to the current time from the preset data storage unit via the vehicle CAN bus. Based on the target driving information in the target driving log, it can determine whether there is any fault information related to the power transmission. Based on the fault information, it can judge the fault status of the transfer case and the transmission, which helps to improve the accuracy of judging whether the vehicle has been misoperated and the selection of the towing mode.

[0077] S102: In response to the detection of a fault code related to at least one of the transfer case and transmission in the target vehicle log, a fault exists in the powertrain. In this step, the transmission fault code can be a relevant data code generated when the transmission malfunctions, indicating that the transmission has malfunctioned. At this time, there may be problems with gear shifting, and it is not suitable to use a towing vehicle for towing. When the transmission has abnormalities in shift execution, hydraulic control, sensors and transmission engagement, it can cause problems such as shifting sticking, slippage, disengagement or inability to engage gears, and the corresponding data code can be generated by the vehicle controller. The transfer case fault code can be a data code generated when the transfer case malfunctions, indicating that the transfer case has failed. At this time, there may be problems with gear shifting, and it is not suitable to be towed by a towing vehicle. Specifically, when the transfer case malfunctions in gear shifting, four-wheel drive control, position sensor and transmission lock, problems such as inability to switch to four-wheel drive, neutral failure, gear sticking or power distribution may occur, and the corresponding data code can be generated by the vehicle controller.

[0078] When the management controller detects a fault code related to at least one of the transfer case and transmission in the target vehicle log, it indicates that there is a fault in the vehicle's powertrain that affects its towing mode, thereby affecting towing efficiency. Therefore, it is necessary to determine the type of towing mode to enable emergency handling of the vehicle. At this time, the user's demand for vehicle towing operations is high, so the probability of misoperation is relatively low.

[0079] Furthermore, when the management controller determines that a trigger event has occurred and simultaneously determines that the duration has reached a time threshold, it can control the vehicle to select and switch to trailer mode when it detects an abnormality in the vehicle's power transmission device. This helps improve the reliability of trailer mode matching and the accuracy of identification, and avoids affecting the user's normal operating procedures.

[0080] In practice, the management controller can retrieve and verify the fault codes in the target vehicle log to determine the fault condition of the powertrain based on the presence and type of the fault codes. When it is determined whether the vehicle's powertrain is faulty, if the management controller detects a fault code related to at least one of the transfer case and transmission in the target vehicle log, it indicates that the powertrain is faulty, which may cause abnormal gear shifting function of the transfer case and / or transmission, making it impossible to switch to neutral. This helps to improve the accuracy of subsequent selection and switching of vehicle towing mode and improve the adaptability of towing mode to vehicle status.

[0081] S103: In response to the absence of fault codes related to the transfer case and transmission in the target vehicle log, there is no fault in the powertrain.

[0082] In practice, the management controller can retrieve and identify fault codes from the target vehicle log to determine the fault status of the powertrain based on the presence and type of the fault codes. If the management controller does not detect any fault codes related to the transfer case and transmission in the target vehicle log, it indicates that the powertrain is not faulty, meaning that the gear shifting function of the transfer case and transmission is normal and neutral shifting can be performed. This helps improve the accuracy of subsequent selection and switching of vehicle towing mode and improves the adaptability of towing mode to vehicle status.

[0083] In some embodiments, based on the trailer management method provided in this application, the method further includes: S3031: In response to determining that there is no fault in the power transmission device, generate a confirmation message to prompt the user and obtain the user's feedback instruction on the confirmation message; In this step, the user confirmation message can be a prompt sent to the user via display or voice when it is determined that there is no fault in the power transmission system, confirming whether the user wants to activate the towing mode. Correspondingly, the feedback instruction for the confirmation message can be the user's response to the prompt message regarding whether to activate the towing mode, which can include operation instructions to confirm activating the towing mode or deactivate it. Specifically, if there is no fault in the power transmission system, the management controller indicates that the vehicle meets the conditions for activating the towing mode. However, to ensure the user's actual towing intention and avoid accidental activation of the towing mode, the management controller can further determine the user's intention before switching to the towing mode and send a confirmation message to the user via human-machine interaction, allowing the user to confirm whether to actively activate the towing mode, thereby improving the accuracy and rationality of the towing mode triggering.

[0084] In practice, the management controller can output confirmation information to the user on whether to activate the towing mode through the vehicle's central control screen, instrument display, or voice prompts, and receive feedback commands from the user in real time through touch buttons, physical buttons, or voice commands.

[0085] S3032: In response to a confirmed instruction received within a second preset time, control the vehicle to start the towing mode; In this step, the confirmation instruction can be an operation instruction from the user to actively choose to agree to start the towing mode after receiving the confirmation information of the towing mode; the second preset time can be a pre-set instruction receiving time window used to limit the duration of the user's confirmation operation. For example, the second preset time can be set to 3 seconds.

[0086] In practice, when the management controller receives a confirmation command from the user within a second preset time, it determines that the user has a clear need to activate the towing mode, and that the operation of activating or deactivating the towing mode via the steering wheel is not a erroneous operation. Therefore, the management controller controls the vehicle to execute the towing mode activation process. Furthermore, after receiving the confirmation command, the management controller can also activate towing mode-related control measures, including controlling the transmission to enter neutral lock state, switching the parking brake system to unlocked mode, and disabling driver assistance functions, so that the vehicle meets the requirements for towing operations.

[0087] S3033: In response to a feedback command received within a second preset time being a cancellation command, or if no feedback command is received within the second preset time, control the vehicle to terminate entering the towing mode.

[0088] In this step, the cancellation command can be an operation command from the user to refuse to enter the towing mode. When the management controller detects that the user has selected the cancellation command within the second preset time, or if no feedback or operation is performed after the second preset time, it can be regarded as the user not having any activation behavior or abandoning the activation behavior; at this time, the management controller can terminate the triggering process of this towing mode to keep the vehicle in its original operating state and avoid affecting the user's normal vehicle use.

[0089] In practice, if the management controller receives a cancellation instruction within the second preset time, or if no feedback instruction is received within the second preset time, it can be determined that the user's demand for the towing mode is weak. At this time, the current towing mode triggering process can be cleared, related prompts can be turned off, and the vehicle can maintain its original operating state, while abandoning any actions related to the towing mode.

[0090] In some embodiments, based on the trailer management method provided in this application, the trailer management method further includes: S404: In response to determining that the vehicle is in towing mode, turn on the indicator lights related to the towing mode and control the vehicle's instrument panel and / or central control screen to generate a display window to display prompt information. In this step, the indicator lights related to the towing mode are dedicated indicator lights that illuminate when the vehicle enters the towing mode, serving as a visual indication of the current operating condition. For example, these may include the towing mode indicator light inside the vehicle, the neutral lock indicator light, the battery level indicator light, the parking brake release indicator light, etc., as well as the hazard warning lights and side marker lights outside the vehicle. The display window for showing the prompts may be a dedicated interface area on the instrument panel and / or the central control screen that displays the towing mode status and precautions, providing clear prompts to the user.

[0091] Furthermore, after the management controller determines that the vehicle has entered the towing mode, it can illuminate the indicator lights related to the towing mode and display prompt information on the instrument panel and / or central control screen. This allows the user to intuitively and clearly understand that the vehicle has entered the towing mode, enabling the user to understand the current working status of the vehicle in a timely manner and avoid misoperation due to lack of awareness, thereby improving the safety and controllability of vehicle towing operations.

[0092] In practice, after determining that the vehicle has entered the towing mode, the management controller can send a display control command to the instrument control unit and / or the central control screen control unit. At the same time, it controls the activation of response indicator lights related to the towing mode, so as to generate a corresponding display window through the instrument and / or central control screen. The display window can be used to display information such as the towing mode status, related precautions and current vehicle operating parameters in real time, thereby achieving targeted reminders for the towing mode.

[0093] S405: In response to determining that the vehicle is in towing mode off, turn off indicator lights unrelated to towing mode after a third preset time, and control the vehicle's instrument panel and / or central control screen to turn off display windows used to display prompt information.

[0094] In this step, the third preset time can be a pre-set delayed shutdown time window, used to allow the user sufficient observation and confirmation time after the vehicle exits the towing mode, avoiding misjudgment caused by the immediate disappearance of prompt information and indicator lights; after the third preset time, the management controller can control the shutdown of indicator lights unrelated to the vehicle's towing mode, such as the towing mode indicator light, neutral lock indicator light, and parking brake release indicator light inside the vehicle, while the hazard warning lights and side marker lights outside the vehicle, as well as the battery indicator light inside the vehicle, can be selectively shut off according to the current vehicle condition to ensure safety after the vehicle exits the towing mode; at the same time, the management controller can control the vehicle's instrument panel and / or central control screen to return to the normal display interface, ensuring a smooth driving experience and a clean driving display.

[0095] In practice, after the management controller detects that the vehicle has exited the towing mode, it can control the timer to start timing. When the duration of exiting the towing mode reaches the third preset time, it sends a shutdown command to the instrument control unit and / or the central control screen control unit to turn off the indicator lights unrelated to the towing mode. At the same time, it controls the instrument and / or central control screen to close the corresponding prompt information display window so that the vehicle's display interface returns to normal operation.

[0096] In some embodiments, based on the trailer management method provided in this application, the method further includes: S201: In response to determining that the vehicle has entered the fixed transport mode, the electronic parking brake system of the vehicle is controlled to enter the locking mode to lock the wheels of the vehicle. In this step, when the vehicle's electronic parking brake system enters the locking mode, it can control the electronic parking brake system to maintain the locked state of the vehicle's wheels, so that the electronic parking brake system can maintain the braking state and remain unchanged in the fixed transport mode, thereby ensuring the stability of the rescued vehicle on the flatbed rescue vehicle.

[0097] In practice, when the management controller determines that there is a fault in the vehicle's power transmission device, it can control and adjust the activation status of the vehicle's fixed transport mode. When it is determined that the vehicle is in fixed transport mode, it means that the vehicle can be transported by a flatbed rescue vehicle. In order to improve the stability of the vehicle transportation process, the management controller controls the vehicle's electronic parking brake system to enter the locking mode, so as to control the electronic parking brake system to lock the vehicle's wheels, restrict their free rotation, and prevent the rescued vehicle from being accidentally bumped during the transfer.

[0098] S202: In response to determining that the vehicle is in the fixed transport mode, the electronic parking brake system of the vehicle is deactivated from the locking mode to release the electronic parking brake system from locking the wheels of the vehicle.

[0099] In practice, when the management controller determines that there is a fault in the vehicle's power transmission, it can control the activation status of the vehicle's fixed transport mode. When the fixed transport mode is deactivated, it indicates that the user no longer needs the flatbed rescue vehicle for transport, or that loading and unloading operations need to be performed on the flatbed rescue vehicle. To allow the rescued vehicle to adapt to the current operation, the management controller can control the electronic parking brake system to exit the locking mode and release the electronic parking brake system, thus unlocking the vehicle's wheels and allowing them to rotate freely, facilitating the loading and unloading of the rescued vehicle.

[0100] It should be noted that the method in this embodiment can be executed by a single device, such as a computer or server. The method can also be applied in a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method in this embodiment, and the multiple devices will interact with each other to complete the method described.

[0101] It should be noted that the above description describes some embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0102] Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides a trailer management device.

[0103] refer to Figure 1 and Figure 3The trailer management device may include a detection timing module 11, a first comparison and adjustment module 12, and a second comparison and adjustment module 13. Specifically: The detection timing module is configured to detect vehicle malfunctions and record the duration of the trigger event in response to the detection of a trigger event of the preset button. The first comparison and adjustment module is configured to adjust the opening and closing state of the vehicle's fixed transport mode in response to detecting a fault in the vehicle's power transmission device and the duration of the fault reaching a first duration threshold. The second comparison and adjustment module is configured to adjust the on / off state of the vehicle's traction mode in response to the detection that there is no fault in the vehicle's power transmission device and the duration reaches a second duration threshold. The triggering event is when a preset key in the first key operation area and a preset key in the second key operation area are triggered at the same time, and the first duration threshold is less than the second duration threshold.

[0104] For ease of description, the above devices are described in terms of function, divided into various modules. Of course, in implementing this application, the functions of each module can be implemented in one or more software and / or hardware.

[0105] The apparatus described above is used to implement the corresponding trailer management method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0106] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the trailer management method described in any of the above embodiments.

[0107] Figure 4 This embodiment illustrates a more specific hardware structure of an electronic device. The device may include a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, memory 1020, input / output interface 1030, and communication interface 1040 are interconnected internally via the bus 1050.

[0108] The processor 1010 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0109] The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1020 and is called and executed by the processor 1010.

[0110] The input / output interface 1030 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components within the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touchscreens, microphones, various sensors, etc., while output devices may include displays, speakers, vibrators, indicator lights, etc.

[0111] The communication interface 1040 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0112] Bus 1050 includes a pathway for transmitting information between various components of the device, such as processor 1010, memory 1020, input / output interface 1030, and communication interface 1040.

[0113] It should be noted that although the above-described device only shows the processor 1010, memory 1020, input / output interface 1030, communication interface 1040, and bus 1050, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0114] The electronic devices described above are used to implement the corresponding trailer management methods in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0115] Based on the same inventive concept, corresponding to the methods of any of the above embodiments, this application also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the trailer management method as described in any of the above embodiments.

[0116] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transfer medium that can be used to store information accessible by a computing device.

[0117] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the trailer management method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0118] Based on the same concept, corresponding to any of the above embodiments, this application also provides a computer program product, including computer program instructions, which, when run on a computer, cause the computer to perform the method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0119] It is understood that before using the technical solutions of the various embodiments in this application, users will be informed of the type, scope of use, and usage scenarios of the personal information involved in an appropriate manner, and user authorization will be obtained.

[0120] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose, based on the prompt message, whether to provide personal information to the software or hardware such as electronic devices, applications, servers, or storage media performing the operations described in this application.

[0121] As an optional but not limited implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0122] It is understood that the above notification and user authorization process is merely illustrative and does not limit the implementation of this application. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this application.

[0123] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application is limited to these examples; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0124] Additionally, to simplify the description and discussion, and to avoid obscuring the embodiments of this application, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring the embodiments of this application, and this also takes into account the fact that the details of the implementation of these block diagram apparatuses are highly dependent on the platform on which the embodiments of this application will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this application, it will be apparent to those skilled in the art that the embodiments of this application can be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0125] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications, and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0126] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the claims of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A trailer management method, wherein the vehicle's steering wheel has a first button operation area and a second button operation area, both the first button operation area and the second button operation area being provided with preset buttons, characterized in that, The method includes: In response to the detection of a trigger event of the preset button, the vehicle's fault condition is detected, and the duration of the trigger event is recorded; In response to the detection of a fault in the vehicle's power transmission device, and the duration of the fault reaching a first duration threshold, the on / off state of the vehicle's fixed transport mode is adjusted. In response to the detection that there is no fault in the vehicle's powertrain and the duration reaches a second duration threshold, the activation / deactivation status of the vehicle's traction mode is adjusted. The triggering event is when a preset key in the first key operation area and a preset key in the second key operation area are triggered at the same time, and the first duration threshold is less than the second duration threshold.

2. The trailer management method according to claim 1, characterized in that, The method further includes: In response to determining that the vehicle has entered towing mode, the trigger mode of the vehicle's power-on / off control switch is adjusted based on the current battery charge level.

3. The trailer management method according to claim 1, characterized in that, The step of adjusting the trigger mode of the vehicle's power-on / off control switch based on the obtained current battery charge includes: In response to determining that the current battery charge is greater than a first charge threshold, the power-down function of the power-on / off control switch is disabled; In response to determining that the current battery charge is less than or equal to a first charge threshold and greater than a second charge threshold, the power-on / off control switch is controlled to switch to a preset triggering mechanism, wherein the preset triggering mechanism is to control the vehicle to power off when the number of triggers of the power-on / off control switch reaches a preset number within a first preset time. In response to determining that the current battery charge is less than or equal to a second charge threshold, the power-down function of the power-on / off control switch is enabled.

4. The trailer management method according to claim 3, characterized in that, The power transmission device includes a transfer case and a gearbox, and the method further includes: In response to determining that the vehicle meets preset conditions, the transmission and the transfer case are controlled to enter neutral lock state respectively, so as to prevent the transmission and the transfer case from switching to gears other than neutral. The preset conditions include at least one of the following: The vehicle is powered on and in towing mode. The vehicle is in a power-down state caused by the current charge level of the battery being less than or equal to a second charge threshold.

5. The trailer management method according to claim 3, characterized in that, Also includes: In response to determining that the vehicle meets the preset conditions, the electronic parking brake system controlling the vehicle switches to the unlocked mode to release the braking function of the electronic parking brake system on the vehicle. The preset conditions include at least one of the following: The vehicle is powered on and in towing mode. The vehicle is in a power-down state caused by the current charge level of the battery being less than or equal to a second charge threshold.

6. The trailer management method according to claim 1, characterized in that, The power transmission device includes a transfer case and a gearbox; The fault conditions of the vehicle being detected include: The fault conditions of the transfer case and the transmission are detected based on the retrieved vehicle's target driving log. If a fault code related to at least one of the transfer case and the transmission is detected in the target vehicle log, then the powertrain is faulty; If no fault codes related to the transfer case and the transmission are detected in the target vehicle log, then the powertrain is not faulty.

7. The trailer management method according to claim 1, characterized in that, The method further includes: In response to determining that there is no fault in the power transmission device, a confirmation message is generated to prompt the user, and feedback instructions from the user regarding the confirmation message are obtained; In response to a confirmed instruction received within a second preset time, the vehicle is controlled to activate the towing mode. In response to a cancellation command received within a second preset time, or if no feedback command is received within the second preset time, the vehicle is controlled to terminate its entry into towing mode.

8. The trailer management method according to claim 1, characterized in that, The method further includes: In response to determining that the vehicle has entered towing mode, the indicator lights associated with the towing mode are turned on, and the vehicle's instrument panel and / or central control screen are controlled to generate a display window to display prompt information. In response to determining that the vehicle is in towing mode off, the indicator lights unrelated to towing mode are turned off after a third preset time, and the display windows used to display prompt information on the vehicle's instrument panel and / or central control screen are turned off.

9. The trailer management method according to claim 1, characterized in that, The method further includes: In response to determining that the vehicle has entered the fixed transport mode, the electronic parking brake system of the vehicle is controlled to enter the locking mode to lock the wheels of the vehicle. In response to determining that the vehicle is in the fixed transport mode, the electronic parking brake system of the vehicle is controlled to exit the locking mode, thereby controlling the electronic parking brake system to release the lock on the vehicle's wheels.

10. A vehicle, characterized in that, The method includes a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor executes the program to implement the method as described in any one of claims 1 to 9.

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