Device and method for displaying working state of high-voltage electric capstan of new energy vehicle and vehicle

Abstract

The invention belongs to the technical field of hybrid electric vehicle control, and discloses a new energy vehicle high-voltage electric capstan working state display device and method and a vehicle. The new energy vehicle high-voltage electric capstan working state display device comprises a vehicle control unit, a capstan electric control system, an all-in-one controller and an instrument; the vehicle control unit is respectively connected with the winch controller, the all-in-one controller and the instrument, and is used for receiving demand information processed by the winch controller, sending an instruction for controlling the connection / disconnection of the high-voltage winch relay to the all-in-one controller, receiving working state information of the high-voltage relay fed back by the all-in-one controller, and sending the working state information to the all-in-one controller; and the working state information is sent to the instrument for display. By constructing a complete control logic of capstan state detection, signal transmission and instrument visual presentation and designing a matched hardware device, a driver can know the working state of the capstan at any time, improper operation is avoided, the blank in the prior art is filled, and operation safety and equipment reliability are guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hybrid vehicle control, and particularly relates to a new energy vehicle high-voltage electric winch working state display device and method and a vehicle. BACKGROUND

[0002] In recent years, with the continuous development of the new energy vehicle industry, more and more high-voltage components are applied to commercial vehicles. In the field of new energy off-road vehicles, high-voltage electric winches (powered by 300V-800V power batteries) have become the core escape device in complex road conditions due to their high pulling force and low loss. However, compared with traditional low-voltage winches, high-voltage winches have significant safety risks: their working state (such as whether they have starting conditions or whether they are in a high-voltage live state) cannot be judged by direct observation, which easily leads to driver misoperation — for example, forcibly starting when the winch has not completed pre-charging and does not have working conditions, which may cause damage to electric control elements; or performing maintenance when the winch is still in a high-voltage live state, which may cause electric shock and other safety accidents. The current industry focuses on "function implementation" (such as improving pulling force and optimizing power-up process) in the research and development of high-voltage winches, but ignores the key safety link of "state perception": the driver needs to know the winch's working readiness state and high-voltage live state in real time to ensure safe operation and reliable equipment operation, so "visual prompt of high-voltage winch working state" has become one of the core needs of new energy off-road vehicle safety technology.

[0003] Current technical research on new energy high-voltage electric winches has not formed a systematic working state prompt scheme, with the following specific limitations: existing technologies use series pre-charging resistors and pre-charging relays to solve the problem of electric arc discharge during high-voltage winch power-up, achieving damage-free power-up. However, this type of technology only focuses on "hardware protection of the power-up process" and does not involve "state feedback of the power-up result" — that is, it cannot transmit information such as "pre-charging complete, winch has working conditions" or "pre-charging failed, temporarily not having working conditions" to the driver in real time through vehicle-mounted instruments and other terminals, making it difficult for the driver to determine whether the winch can be started. Some research proposes a soft switch control scheme based on the vehicle-mounted intelligent interaction unit (IHU), which realizes winch start-stop instruction input through the IHU interface, replacing traditional physical keys. However, this technology only optimizes "instruction input method" and does not cover "state output feedback": it does not define the transmission logic of winch working state (such as high-voltage live, fault shutdown) to the instrument, nor does it design the state display rules on the instrument side, making it difficult for the driver to know the real-time live state of the winch and easily performing dangerous operations such as maintenance when the high voltage is not disconnected. SUMMARY

[0004] The present application aims to provide a new energy vehicle high-voltage electric winch working state display device, method and automobile, by constructing a complete control logic of "winch state detection signal transmission instrument visual presentation", designing a matching hardware device, through the scheme, the driver can know at any time whether the winch has working conditions, whether it is in a high-voltage live state, avoid improper operation, fill the gap of the prior art "lack of systematic working state prompt", ensure the operation safety and reliability of the equipment.

[0005] The specific scheme content is as follows:

[0006] A new energy vehicle high-voltage electric winch working state display device, comprising: a vehicle controller, a winch electric control system, a multi-in-one electric control system and an instrument. The vehicle controller is connected to the multi-in-one electric control system, the winch electric control system and the instrument. The winch electric control system comprises a winch control switch, a winch controller and a high-voltage winch executor. The multi-in-one electric control system comprises a voltage sensor, a multi-in-one controller, a high-voltage relay and the like.

[0007] The vehicle controller of the present application is the center of the entire system device, responsible for receiving and processing and coordinating the work of each subsystem in the system. On the one hand, the vehicle controller communicates with the winch controller through CAN line or hard-wire connection mode, used to receive the working demand signal processed by the winch controller and send the working permission signal to the winch controller, including high-voltage winch high-voltage power-on, power-off request and permission control, etc. On the other hand, the vehicle controller communicates with the multi-in-one controller through CAN line or hard-wire connection mode, used to control the attraction and disconnection of the high-voltage winch relay in the high-voltage loop, and receive the relay state feedback from the multi-in-one controller. Finally, the vehicle controller judges the working state of the high-voltage electric winch, and sends it to the instrument through CAN line communication for interaction with the driver, helping the driver to determine whether the high-voltage winch has working state.

[0008] The winch electric control system of the application mainly comprises a winch motor, a winch controller, a winch working current sensor, and a winch control switch combination, wherein the form of the winch control switch includes but is not limited to a separate hardware switch or a soft switch integrated into a car machine as an input of the driver's demand, and a signal is transmitted to the winch controller when the driver has an action or stops the high-voltage winch; the winch controller is awakened by the low-voltage provided by the whole vehicle and works, and sends a non-working signal to the whole vehicle controller when it is in sleep state; after being awakened, the winch controller first performs a fault self-checking to determine whether the winch can work, and if the winch can work, a working signal is sent to the whole vehicle controller in response to the input signal of the handle switch, otherwise a non-working signal is sent. The winch motor is controlled to work through the winch motor permission control signal processed by the whole vehicle controller, and the winch motor does not work if the whole vehicle controller does not send the permission control signal; the winch motor as an actuator is a high-voltage component, which is connected with a high-voltage line network through a high-voltage relay in the all-in-one system and obtains electric energy from a power battery, and is used to realize the demand action of the driver, and the specification parameters of the winch motor are different due to the demand of the whole vehicle and different brands, but the use mode has no obvious difference, and the winch motor starts to work when it has working conditions and receives the winch working signal, and helps the vehicle to complete the escape.

[0009] The all-in-one electric control system of the application mainly comprises a voltage sensor, an all-in-one controller, a high-voltage relay power distribution system, and a high-voltage relay, and further comprises but is not limited to a DCDC, an oil pump, an air pump, a motor controller, a BMS controller and the like as system components, wherein the high-voltage relay power distribution system cooperates with the whole vehicle controller to turn on and off the high-voltage components by attracting or opening the high-voltage relay, and includes but is not limited to self-power supply for high-voltage components such as a high-voltage electric winch, a power battery, a DCDC circuit, an oil pump, an air pump, a driving motor and the like, and the voltage sensor judges the opening and attraction states of the relay by identifying the pressure difference between the front and rear ends of the high-voltage relay, and further identifies the power supply state of the components such as the high-voltage winch.

[0010] The instrument of the application is an important component for visualizing the working state of the electric winch, and transmits the high-voltage winch working state signal provided by the whole vehicle controller to the driver and displays it to the driver, so that the driver can know at any time whether the winch has working conditions and whether it is in a high-voltage live state, thereby avoiding improper operation (such as live maintenance and unready start).

[0011] The device and method of the application have universality, and can be adapted to all new energy off-road vehicles and commercial vehicles with similar devices and systems, and can be flexibly adapted to the whole vehicle configuration by appropriately adjusting the control method according to the parameter characteristics of the matched system components.

[0012] Further, the winch electric control system further comprises a winch control switch and a winch motor, and the winch controller is connected with the winch control switch and the winch motor respectively, wherein,

[0013] The winch control switch is used for inputting or stopping the control instruction of the high-voltage winch and sending the control instruction information to the winch controller.

[0014] After receiving the control instruction of the winch control switch, the winch controller self-checks whether the working condition is met, and is used for judging whether to send the working signal to the winch motor.

[0015] The winch motor is a high-voltage component, and is used for executing the control instruction of the winch control switch.

[0016] Further, the winch control switch comprises a separate hardware switch or a soft switch integrated into the vehicle machine.

[0017] Further, the all-in-one controller comprises a high-voltage relay power distribution system, and the high-voltage relay power distribution system is used for cooperating with the vehicle controller to power on and power off the high-voltage components, including self-power supply for the high-voltage electric winch and being capable of identifying the power supply state.

[0018] Further, the instrument is a visual component, and is used for receiving the working state information of the high-voltage winch provided by the vehicle controller and displaying.

[0019] The instrument of the present application displays the working state information of the high-voltage winch in the form of indicating lamp, screen display prompt text or voice prompt.

[0020] Further, the related wire harness and connector are further included, and are used for ensuring the communication, power supply and reliability of the controllers and instruments in the device.

[0021] Further, the all-in-one controller further comprises a DCDC, an oil pump, an air pump, a motor controller and a BMS controller, and the high-voltage relay power distribution system is further used for self-power supply of the high-voltage components such as the power battery, the DCDC circuit, the oil pump, the air pump and the driving motor.

[0022] A control method for displaying the working state of a high-voltage electric winch of a new energy vehicle, which applies the device for displaying the working state of the high-voltage electric winch of the new energy vehicle, and the steps comprise:

[0023] Step 1, pressing the winch control switch to send the instruction information of the working high-voltage winch to the winch controller;

[0024] Step 2, after receiving the instruction, the winch controller judges whether the condition of sending the working request to the vehicle controller is met;

[0025] When the vehicle is in low-voltage power-on state, the winch controller performs winch fault self-check, if the self-check result is no fault, the winch controller sends winch working request to the vehicle controller, and continues to perform step 3; if the self-check result is fault, the winch controller sends fault signal to the vehicle controller, and the instrument displays the state information of the fault;

[0026] When the vehicle is in low-voltage power-on state, the winch controller sends low-voltage power-on information to the vehicle controller, and the instrument displays the state information of the low-voltage power-on.

[0027] Step 3, after receiving the high-voltage winch power-on working request sent by the winch controller, the vehicle controller sends winch high-voltage relay attraction instruction to the multi-in-one controller, and detects the attraction state of the winch high-voltage relay, if the winch high-voltage relay is successfully attracted, the vehicle controller sends winch state signal to the instrument, and sends working permission signal to the winch high-voltage controller, the high-voltage winch state mark on the instrument is lit, and the high-voltage winch starts to work to help the vehicle to get out of trouble; if the winch high-voltage relay fails to attract, the vehicle controller sends working disallowance signal to the winch high-voltage controller, and the high-voltage winch state mark on the instrument is not lit.

[0028] Step 4, after the high-voltage electric winch completes the work of assisting the vehicle to get out of trouble, the winch controller detects that the high-voltage electric winch has not been closed for a preset time, and sends power-off request to the vehicle controller, the vehicle controller sends instruction to the multi-in-one controller to disconnect the high-voltage relay, and the related state mark on the instrument is extinguished.

[0029] In step 4, after the high-voltage electric winch completes the work of assisting the vehicle to get out of trouble, if the high-voltage winch has not been closed for a long time, the winch controller detects that the current of the high-voltage winch is less than a certain value within a preset time through the current sensor in the winch electric control system, and then the controller sends power-off request to the vehicle controller, the vehicle controller sends instruction to the multi-in-one controller to disconnect the high-voltage relay, and the related state mark on the instrument is extinguished.

[0030] Further, in step 3, after the winch high-voltage relay fails to attract, the vehicle controller continues to automatically attempt to power on, when the number of times of winch high-voltage relay attraction failure exceeds a preset limit, the vehicle controller stops sending winch high-voltage relay attraction instruction to the multi-in-one controller, and the instrument displays the information prompt that the winch control switch needs to be pressed again.

[0031] The control method is stored in the vehicle controller in the form of C code, the controller accepts sensor data through a data interface, and outputs control instructions to actuators and instruments through a microprocessor to realize the working prompt of the high-voltage electric winch.

[0032] When the driver needs to work the winch, the control demand is transmitted to the winch controller by pressing the winch control switch. At this time, the winch controller makes a logical judgment. If the vehicle is not powered by low voltage at this time, the winch work request will not be sent to the vehicle controller, and the instrument will display the information prompt of not being powered by low voltage. If it has been powered by low voltage, the winch fault self-checking is carried out. If there is no fault, the work request will be sent to the vehicle controller, otherwise the work request will not be sent, and the instrument will display the information prompt of the fault state.

[0033] When the vehicle controller receives the high-voltage winch power-on work request sent by the winch controller, it will try to send the winch high-voltage relay attraction command to the multi-controller, and detect the winch high-voltage relay attraction state. If the high-voltage winch relay can be successfully attracted, the winch state signal is sent to the instrument, and the high-voltage winch state flag on the instrument is lit, which means that the electric winch has the working ability, and the driver can proceed to the next operation to help the vehicle get out of trouble. If it is not attracted due to fault state or other reasons, the high-voltage winch state flag on the instrument is not lit, and the vehicle controller automatically tries to power on. If the number of power-on attempts exceeds the preset limit, the driver needs to re-input the request to protect the components, and the instrument displays the information prompt of re-input command.

[0034] After the driver uses the electric winch, if he forgets to turn off the electric winch, in order to prevent unnecessary harm to the driver, the winch controller will send a power-off request to the vehicle controller after waiting for a period of time (which can be calibrated), and then the vehicle controller commands the multi-controller to disconnect its high-voltage relay, and the related state flag on the instrument is extinguished. If the driver needs to work, he needs to re-operate according to the above process.

[0035] A new energy vehicle comprising the new energy vehicle high-voltage electric winch working state display device.

[0036] Compared with the prior art, the present application has the following beneficial effects:

[0037] The present application takes the safety perception of the driver as the core, proposes a dedicated instrument display scheme for the high-voltage winch working state, designs a matching device, and clearly displays the content of the instrument; a complete control logic of "winch state detection signal transmission instrument visualization" is constructed, so that the driver can always know whether the winch has working conditions and whether it is in a high-voltage live state, thereby avoiding improper operation (such as live maintenance and unready start), and the blank of the prior art "lack of systematic working state prompt" is filled, thereby ensuring the operation safety and the reliability of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a schematic diagram of the device of the present application.

[0039] Figure 2A flow chart of the method of the present application. DETAILED DESCRIPTION

[0040] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art without creative work on the basis of the embodiments of the present application belong to the scope of protection of the present application.

[0041] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0042] It should be noted that the terms "front", "back", "inner", "outer", "left", "right" and the like used in the present application indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0043] The present application will be described in detail below by combining Figure 1 and Figure 2 The present application will be described in detail below by combining

[0044] Embodiment 1:

[0045] A new energy vehicle high-voltage electric winch working state display device, as shown in Figure 1 , comprising: a vehicle controller, a winch electric control system, a multi-in-one controller and an instrument, the winch electric control system comprising a winch controller, the vehicle controller being connected to the winch controller, the multi-in-one controller and the instrument respectively, the vehicle controller being used for receiving the demand information processed by the winch controller, sending the instruction for controlling the high-voltage winch relay to be attracted or disconnected to the multi-in-one controller, receiving the working state information of the high-voltage relay fed back by the multi-in-one controller, and sending the working state information to the instrument for display.

[0046] The vehicle control unit is the center of the entire system device, responsible for receiving, processing and coordinating the work of each subsystem in the system. On the one hand, the vehicle control unit communicates with the winch controller through CAN line or hard-wire connection, receives the work demand signal processed by the winch controller, and sends the work permission signal to the winch controller, including high-voltage winch high-voltage power-on and power-off request and permission control, etc. On the other hand, the vehicle control unit communicates with the all-in-one controller through the CAN line or hard-wire connection, controls the attraction and disconnection of the high-voltage winch relay in the high-voltage circuit, and receives the relay state feedback from the all-in-one controller. Finally, the vehicle control unit judges the working state of the high-voltage electric winch and sends it to the instrument through CAN line communication for interaction with the driver to help the driver determine whether the high-voltage winch is in working state.

[0047] The winch electric control system also includes a winch control switch and a winch motor, and the winch controller is connected to the winch control switch and the winch motor, respectively.

[0048] The winch control switch is used to input or stop the control command of the high-voltage winch and send the control command information to the winch controller.

[0049] After receiving the control command of the winch control switch, the winch controller self-checks whether it has working conditions, and judges whether to send a work signal to the winch motor.

[0050] The winch motor is a high-voltage component, used to execute the control command of the winch control switch.

[0051] The winch control switch includes a separate hardware switch or a soft switch integrated into the car machine.

[0052] The winch electric control system mainly includes a winch motor, a winch controller, and a winch control switch combination. The winch control switch includes, but is not limited to, a separate hardware switch or a soft switch integrated into a car machine, as an input of the driver's demand. When the driver has an input of action or stops the high-pressure winch, a signal is transmitted to the winch controller. The winch controller is awakened by the low-voltage provided by the whole vehicle and works. When it is in sleep mode, a non-working signal is sent to the whole vehicle controller. After being awakened, the winch controller first performs a fault self-check of the winch to determine whether the winch can work. If the winch can work, a working signal is sent to the whole vehicle controller in response to the input signal of the handle switch. Otherwise, a non-working signal is sent. The winch motor is controlled by the winch motor permission control signal processed by the whole vehicle controller. If the whole vehicle controller does not send the permission control signal, the winch motor does not act.

[0053] The multi-in-one controller includes a high-voltage relay power distribution system, which is used to cooperate with the whole vehicle controller to power on and off the high-voltage components, including self-power supply for the high-voltage electric winch and the ability to identify the power supply state.

[0054] The multi-in-one controller further includes a DCDC, an oil pump, an air pump, a motor controller, and a BMS controller. The high-voltage relay power distribution system is also used for self-power supply of the high-voltage components such as the power battery, the DCDC circuit, the oil pump, the air pump, and the drive motor.

[0055] The multi-in-one electric control system mainly includes a voltage sensor, a multi-in-one controller, a high-voltage relay power distribution system, and a high-voltage relay. As system components, it also includes, but is not limited to, a DCDC, an oil pump, an air pump, a motor controller, a BMS controller, etc. The high-voltage relay power distribution system cooperates with the whole vehicle controller to power on and off the high-voltage components by attracting or opening the high-voltage relay, including but not limited to self-power supply for high-voltage components such as the high-voltage electric winch, the power battery, the DCDC circuit, the oil pump, the air pump, and the drive motor. The voltage sensor determines the opening and attraction state of the relay by identifying the pressure difference before and after the high-voltage relay, and further identifies the power supply state of the high-voltage winch and other components.

[0056] The instrument is a visual component for receiving the working state information of the high-voltage winch provided by the whole vehicle controller and displaying it.

[0057] The instrument is an important part of visualizing the working state of the electric winch, and the working state signal of the high-voltage winch provided by the vehicle controller is received and displayed to the driver, so that the driver can know whether the winch has working conditions and whether it is in a high-voltage live state at any time, thereby avoiding improper operation (such as live maintenance and unready start). The instrument of the present application can display the working state information of the high-voltage winch in the form of indicator light, screen display prompt text or voice prompt.

[0058] The related wire harness and connector of the device are used to ensure the communication, power supply and reliability of the controllers and instruments in the device.

[0059] Example 2:

[0060] The present application also provides a control method for displaying the working state of a high-voltage electric winch of a new energy vehicle, as shown in Figure 2 The instrument in the device displays the working state in the form of pre-set indicator light, and the steps include:

[0061] Step 1: The driver presses the winch control switch to send the instruction information of the high-voltage winch to the winch controller.

[0062] Step 2: After receiving the instruction, the winch controller judges whether the condition of sending the working request to the vehicle controller is met.

[0063] When the vehicle is in a low-voltage power-on state, the winch controller performs a winch fault self-check, and if the self-check result is no fault, the winch controller sends a winch working request to the vehicle controller, and step 3 is continued; if the self-check result is a fault, the winch controller sends a fault signal to the vehicle controller, and the instrument displays the indicator light of the fault.

[0064] When the vehicle is in a low-voltage power-on state, the winch controller sends a low-voltage power-on information to the vehicle controller, and the instrument displays the state information of the low-voltage power-on.

[0065] Step 3, after receiving the high-voltage winch power-on working request sent by the winch controller, the vehicle controller sends the winch high-voltage relay attraction instruction to the multi-in-one controller, and detects the winch high-voltage relay attraction state. If the high-voltage winch relay is successfully attracted, the winch state signal is sent to the instrument, the indicator light of the high-voltage winch state on the instrument is turned on, and the high-voltage winch starts to work to help the vehicle get out of trouble. If the high-voltage winch relay fails to attract, the indicator light of the high-voltage winch state on the instrument does not light up. When the high-voltage winch relay fails to attract, the vehicle controller continues to automatically try to power on. When the number of times of failure of the high-voltage winch relay to attract exceeds the preset limit number of times, the vehicle controller stops sending the winch high-voltage relay attraction instruction to the multi-in-one controller, and the indicator light of the winch control switch on the instrument needs to be pressed again. The driver sees the indicator light and presses the winch control switch again.

[0066] Step 4, after the high-voltage electric winch completes the work of assisting the vehicle to get out of trouble, the winch controller detects that the high-voltage electric winch has not been closed after a preset time, and sends a power-off request to the vehicle controller. The vehicle controller sends an instruction to the multi-in-one controller to disconnect the high-voltage relay, and the related state flag on the instrument is extinguished.

[0067] Example 3:

[0068] The application also provides a control method for displaying the working state of a high-voltage electric winch of a new energy vehicle, as shown in Figure 2 The application also provides a control method for displaying the working state of a high-voltage electric winch of a new energy vehicle, as shown in

[0069] Step 1, the driver presses the winch control switch to send an instruction information of needing the high-voltage winch to work to the winch controller;

[0070] Step 2, after receiving the instruction, the winch controller judges whether the condition of sending a working request to the vehicle controller is met:

[0071] When the vehicle is in a low-voltage power-on state, the winch controller performs a winch fault self-check. If the self-check result is no fault, the winch controller sends a winch working request to the vehicle controller, and step 3 is continued. If the self-check result is a fault, the winch controller sends a fault signal to the vehicle controller, and the instrument screen displays the state text information of the fault;

[0072] When the vehicle is in a low-voltage power-on state, the winch controller performs a winch fault self-check. If the self-check result is no fault, the winch controller sends a winch working request to the vehicle controller, and step 3 is continued. If the self-check result is a fault, the winch controller sends a fault signal to the vehicle controller, and the instrument screen displays the state text information of the fault;

[0073] Step 3, after receiving the high-voltage winch power-on request sent by the winch controller, the vehicle controller sends the winch high-voltage relay attraction instruction to the all-in-one controller, and detects the winch high-voltage relay attraction state, if the high-voltage winch relay is successfully attracted, the instrument sends the winch state signal, the instrument screen displays the text information of the successful attraction of the high-voltage winch relay, and the high-voltage winch starts to work to help the car get out of trouble; if the high-voltage winch relay fails to attract, the instrument screen displays the text information of the failure of the high-voltage winch relay to attract; when the high-voltage winch relay fails to attract, the vehicle controller continues to automatically try to power on, and when the number of times of failure of the high-voltage winch relay to attract exceeds the preset limit number of times, the vehicle controller stops sending the winch high-voltage relay attraction instruction to the all-in-one controller, and the instrument needs to press the winch control switch again. The driver presses the winch control switch again.

[0074] Step 4, after the high-voltage electric winch completes the work of assisting the car to get out of trouble, the vehicle controller sends an instruction to the all-in-one controller to disconnect the high-voltage relay, and the related state flag of the instrument is extinguished. If the high-voltage winch is not closed for a long time, the winch controller detects that the current of the high-voltage winch is less than a certain value within a preset time through the current sensor in the winch electric control system, then the controller sends a power-off request to the vehicle controller, the vehicle controller sends an instruction to the all-in-one controller to disconnect the high-voltage relay, and the instrument screen displays the completed text information.

[0075] Embodiment 4:

[0076] The application further provides a new energy vehicle comprising the new energy vehicle high-voltage electric winch working state display device.

[0077] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for displaying the working status of a high-voltage electric winch for new energy vehicles, characterized in that, include: The system includes a vehicle controller, a winch electronic control system, a multi-function controller, and an instrument panel. The winch electronic control system includes a winch controller. The vehicle controller is connected to the winch controller, the multi-function controller, and the instrument panel. The vehicle controller receives the demand information processed by the winch controller, sends commands to the multi-function controller to control the high-voltage winch relay to engage / disengage, receives the high-voltage relay's operating status information from the multi-function controller, and sends the operating status information to the instrument panel for display.

2. The new energy vehicle high-voltage electric winch working status display device according to claim 1, characterized in that, The winch electrical control system also includes a winch control switch and a winch motor. The winch controller is connected to both the winch control switch and the winch motor. The winch control switch is used to input or stop the control command of the high-voltage winch and to send control command information to the winch controller. After receiving the control command from the winch control switch, the winch controller performs a self-check to determine whether it has the necessary working conditions and whether to send a working signal to the winch motor. The winch motor is a high-voltage component used to execute control commands from the winch control switch.

3. The new energy vehicle high-voltage electric winch working status display device according to claim 2, characterized in that, The winch control switch includes a separate hardware switch or a soft switch integrated into the vehicle's infotainment system.

4. The new energy vehicle high-voltage electric winch working status display device according to claim 1, characterized in that, The all-in-one controller includes a high-voltage relay power distribution system, which works in conjunction with the vehicle controller to power on and off high-voltage components, including powering the high-voltage electric winch and identifying the power supply status.

5. The new energy vehicle high-voltage electric winch working status display device according to claim 1, characterized in that, The instrument is a visual component used to receive and display the working status information of the high-voltage winch provided by the vehicle controller.

6. The new energy vehicle high-voltage electric winch working status display device according to claim 1, characterized in that, It also includes related wiring harnesses and connectors to ensure the communication, power supply and reliability of the various controllers and instruments in the device.

7. The new energy vehicle high-voltage electric winch working status display device according to claim 1, characterized in that, The all-in-one controller also includes a DC-DC converter, oil pump, air pump, motor controller, BMS controller, and a high-voltage relay power distribution system for self-powering of high-voltage components such as power batteries, DC-DC circuits, oil pumps, air pumps, and drive motors.

8. A control method for displaying the working status of a high-voltage electric winch in a new energy vehicle, characterized in that, The steps of using the new energy vehicle high-voltage electric winch working status display device as described in any one of claims 1-7 include: Step 1: Press the winch control switch to send a command message to the winch controller that the high-voltage winch needs to work; Step 2: After receiving the instruction, the winch controller determines whether the conditions for sending a work request to the vehicle controller are met. When the vehicle is in a low-voltage power-on state, the winch controller performs a winch fault self-check. If the self-check result is no fault, the winch controller sends a winch operation request to the vehicle controller and continues to execute step 3; if the self-check result is a fault, the winch controller sends a fault signal to the vehicle controller and the instrument displays the fault status information. When the vehicle is in a low-voltage power-off state, the winch controller sends a low-voltage power-off message to the vehicle controller, and the instrument displays the low-voltage power-off status information. Step 3: After receiving the high-voltage winch power-on request from the winch controller, the vehicle controller sends a winch high-voltage relay activation command to the multi-function controller and checks the activation status of the winch high-voltage relay. If the high-voltage winch relay successfully activates, it sends a winch status signal to the instrument panel, the high-voltage winch status indicator on the instrument panel lights up, and the high-voltage winch starts working to help the vehicle get out of trouble. If the high-voltage winch relay fails to activate, the high-voltage winch status indicator on the instrument panel does not light up. Step 4: After the high-voltage electric winch completes the work of assisting the vehicle to get out of trouble, if the winch controller detects that the high-voltage electric winch has not been turned off after a preset time, it sends a power-off request to the vehicle controller. The vehicle controller sends a command to the multi-function controller to disconnect the high-voltage relay, and the relevant status indicators on the instrument panel are turned off.

9. The control method for displaying the working status of a high-voltage electric winch in a new energy vehicle according to claim 8, characterized in that, In step 3, when the high-voltage winch relay fails to engage, the vehicle controller continues to automatically attempt to power on. When the number of times the high-voltage winch relay fails to engage exceeds the preset limit, the vehicle controller stops sending the winch high-voltage relay engagement command to the multi-function controller, and the instrument panel displays a message indicating that the winch control switch needs to be pressed again.

10. A new energy vehicle, characterized in that, Includes the new energy vehicle high-voltage electric winch working status display device as described in any one of claims 1-7.

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