Vehicle maintenance mode control device, method, electronic device and storage medium

Abstract

The present invention provides a vehicle maintenance mode control device, method, electronic device and storage medium, which has a maintenance mode switch, the maintenance mode switch has an activation button and a cancel button, once the activation button or the cancel button is pressed, the maintenance mode switch sends a maintenance mode activation signal or a maintenance mode cancel signal to the vehicle controller, the power gear management module can detect the current power gear state of the vehicle as the current power gear state, and the mode control module can control the low voltage power up and down control module, the high voltage power up and down control module or the power system control module according to the maintenance mode activation signal or the maintenance mode cancel signal, and different current power gear states to make the vehicle enter or exit the maintenance mode of limiting the low voltage power-on state, limiting the high voltage power-on state or limiting the drivable state. Furthermore, it also has a position sensor, which constitutes a redundant measure for the maintenance mode switch.

Description

Technical Field

[0001] The present invention belongs to the field of automobile technology, and in particular relates to a vehicle maintenance mode control device, method, electronic equipment and storage medium. Background Art

[0002] During the maintenance of heavy trucks, in order to ensure the safety of maintenance personnel, it is usually necessary to restrict some functions of the vehicle, such as prohibiting power on or driving.

[0003] Traditional methods rely heavily on manual operations, which can easily lead to safety accidents due to negligence. In addition, the maintenance environment is complex and changeable, and a single control method is difficult to meet the needs of all maintenance scenarios. Summary of the invention

[0004] In order to solve the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a vehicle maintenance mode control device, method, electronic device and storage medium.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] <Option 1>

[0007] The present invention provides a vehicle maintenance mode control device, which has the following characteristics: a vehicle controller; and a maintenance mode switch, which is arranged in a cab and is communicatively connected to the vehicle controller, and has an activation button and a cancel button, wherein the vehicle controller has a power gear management module, a mode control module, a low-voltage power up and down control module, a high-voltage power up and down control module, and a power system control module. Once the activation button is pressed, the maintenance mode switch sends a maintenance mode activation signal to the vehicle controller as a first maintenance mode activation signal. Once the vehicle controller receives the first maintenance mode activation signal, the power gear management module detects the current power gear state of the vehicle as a first current power gear state. The power gear state includes a power OFF gear state, a low-voltage power state, and a high-voltage power state. When the first current power gear state is a power OFF gear state, the mode control module controls the low-voltage power up and down control module to work, restricts the low-voltage power distribution system from being powered on, thereby allowing the vehicle to enter the maintenance mode. The vehicle enters a maintenance mode that limits the low-voltage power-on state. When the first current power gear state is a low-voltage power state, the mode control module controls the high-voltage power on and off control module to work, and limits the power-on of the high-voltage distribution system, thereby causing the vehicle to enter a maintenance mode that limits the high-voltage power-on state. When the first current power gear state is a high-voltage power state, the mode control module controls the power system control module to work, and limits the power system from entering a drivable working mode, thereby causing the vehicle to enter a maintenance mode that limits the drivable state. Once the cancel button is pressed, the maintenance mode switch sends a maintenance mode cancel signal to the vehicle controller as a first maintenance mode cancel signal. Once the vehicle controller receives the first maintenance mode cancel signal, the mode control module controls the low-voltage power on and off control module to work, so that the low-voltage distribution system is powered on, or controls the high-voltage power on and off control module to work, so that the high-voltage distribution system is powered on, or controls the power system control module to work, so that the power system enters a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

[0008] The vehicle maintenance mode control device provided by the present invention may also have the following features: it also includes: a position sensor, which is arranged below the cab and is communicatively connected to the vehicle controller for real-time monitoring of the flipping state of the cab, wherein the vehicle controller also has a mode judgment module. Once the cab is flipped up, the position sensor sends a maintenance mode activation signal to the vehicle controller as a second maintenance mode activation signal. Once the vehicle controller receives the second maintenance mode activation signal, the mode judgment module determines whether the vehicle is in a maintenance mode activation state. Once the mode judgment module determines that the vehicle is not in a maintenance mode activation state, the power gear management module detects the current power gear state of the vehicle as the second current power gear state. When the second current power gear state is the power OFF gear state, the mode control module controls the low-voltage power on and off control module to operate, restricting the power on of the low-voltage power distribution system, thereby causing the vehicle to enter a maintenance state in which the low-voltage power on state is restricted. Maintenance mode, when the second current power gear state is a low-voltage power state, the mode control module controls the high-voltage power up and down control module to work, and limits the power-on of the high-voltage distribution system, thereby causing the vehicle to enter a maintenance mode with a restricted high-voltage power-on state. When the second current power gear state is a high-voltage power state, the mode control module controls the power system control module to work, and limits the power system to enter a drivable working mode, thereby causing the vehicle to enter a maintenance mode with a restricted drivable state. Once the cab is flipped over and reset, the position sensor sends a maintenance mode cancellation signal to the vehicle controller as a second maintenance mode cancellation signal. Once the vehicle controller receives the second maintenance mode cancellation signal, the mode control module controls the low-voltage power up and down control module to work to power on the low-voltage distribution system, or controls the high-voltage power up and down control module to work to power on the high-voltage distribution system, or controls the power system control module to work to make the power system enter a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

[0009] The vehicle maintenance mode control device provided by the present invention may also have the following feature: wherein the maintenance mode switch also has a maintenance status indicator light.

[0010] The vehicle maintenance mode control device provided by the present invention may also have the following feature: wherein the maintenance mode switch is a maintenance mode switch with a self-locking function.

[0011] <Option 2>

[0012] The present invention also provides a vehicle maintenance mode control method having the following characteristics, comprising the following steps:

[0013] Once the activation button of the maintenance mode switch is pressed, a maintenance mode activation signal is sent to the vehicle controller as a first maintenance mode activation signal;

[0014] Once the vehicle controller receives the first maintenance mode activation signal, it detects the current power gear state of the vehicle as the first current power gear state, where the power gear state includes the power OFF gear state, the low voltage state and the high voltage state;

[0015] When the first current power gear state is the power OFF gear state, the low-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode of a restricted low-voltage power-on state; when the first current power gear state is a low-voltage power state, the high-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode of a restricted high-voltage power-on state; when the first current power gear state is a high-voltage power state, the power system is restricted from entering a drivable working mode, so that the vehicle enters a maintenance mode of a restricted drivable state;

[0016] Once the cancel button of the maintenance mode switch is pressed, a maintenance mode cancel signal is sent to the vehicle controller as the first maintenance mode cancel signal.

[0017] Once the vehicle controller receives the first maintenance mode cancellation signal, it powers on the low-voltage power distribution system, or powers on the high-voltage power distribution system, or puts the power system into a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

[0018] The vehicle maintenance mode control method provided by the present invention may also have the following features: further comprising the following steps:

[0019] Once the cab is flipped up, the position sensor sends a maintenance mode activation signal to the vehicle controller as a second maintenance mode activation signal;

[0020] Once the vehicle controller receives the second maintenance mode activation signal, it determines whether the vehicle is in a maintenance mode activation state;

[0021] Once it is determined that the vehicle is not in the maintenance mode activation state, the current power gear state of the vehicle is detected as a second current power gear state;

[0022] When the second current power gear state is the power OFF gear state, the low-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode of a restricted low-voltage power-on state; when the second current power gear state is a low-voltage power state, the high-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode of a restricted high-voltage power-on state; when the second current power gear state is a high-voltage power state, the power system is restricted from entering a drivable working mode, so that the vehicle enters a maintenance mode of a restricted drivable state;

[0023] Once the cab is flipped over and reset, the position sensor sends a maintenance mode cancellation signal to the vehicle controller as a second maintenance mode cancellation signal.

[0024] Once the vehicle controller receives the second maintenance mode cancellation signal, it powers on the low-voltage power distribution system, or powers on the high-voltage power distribution system, or puts the power system into a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

[0025] <Scheme 3>

[0026] The present invention also provides an electronic device having the following characteristics: it includes a memory, a processor, and a computer program stored in the memory and executable on the processor; when the processor executes the computer program, the steps of the vehicle maintenance mode control method of <Solution 2> are implemented.

[0027] <Scheme 4>

[0028] The present invention also provides a computer-readable storage medium having the following characteristics: the computer-readable storage medium stores program codes executable by a processor, and when the program codes are executed by the processor, the processor executes the steps of the vehicle maintenance mode control method of <Solution 2>.

[0029] Function and Effect of the Invention

[0030] According to the vehicle maintenance mode control device, method, electronic device and storage medium involved in the present invention, since there is a maintenance mode switch, the maintenance mode switch has an activation button and a cancel button. Once the activation button or the cancel button is pressed, the maintenance mode switch sends a maintenance mode activation signal or a maintenance mode cancel signal to the vehicle controller. The power gear management module can detect the current power gear state of the vehicle as the current power gear state. The mode control module can control the low-voltage power-on and power-off control module, the high-voltage power-on and power-off control module or the power system control module according to the maintenance mode activation signal or the maintenance mode cancel signal and different current power gear states to make the vehicle enter or exit the maintenance mode of limiting the low-voltage power-on state, limiting the high-voltage power-on state or limiting the drivable state. On the one hand, the maintenance mode switch needs to be manually operated to activate or cancel the operation, which greatly improves the convenience of the mode switching operation and ensures the safety in the maintenance scenario; on the other hand, the vehicle controller controls the vehicle to enter the corresponding restricted state maintenance mode according to the current power gear state of the vehicle, which can meet the safety requirements in different maintenance scenarios.

[0031] Furthermore, since it also has a position sensor, once the cab is flipped up or reversed and reset, the position sensor sends a maintenance mode activation signal or a maintenance mode cancellation signal to the vehicle controller, and the mode judgment module can determine whether the vehicle is in an activated maintenance mode state. When the vehicle is not in an activated maintenance mode state, the mode control module can control the low-voltage power-on and power-off control module, the high-voltage power-on and power-off control module, or the power system control module according to the maintenance mode activation signal or the maintenance mode cancellation signal and different current power gear states to make the vehicle enter or exit a maintenance mode of a restricted low-voltage power-on state, a restricted high-voltage power-on state, or a restricted drivable state, thereby constituting a redundant measure for the maintenance mode switch, avoiding potential risks caused by forgetting to activate the maintenance mode switch due to negligence during vehicle maintenance, which not only improves the reliability and stability of the maintenance mode control device, but also makes the activation of the maintenance mode more intelligent and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a structural block diagram of a vehicle maintenance mode control device in a first embodiment of the present invention;

[0033] Figure 2 is an action flow chart of a vehicle maintenance mode control method in Embodiment 1 of the present invention;

[0034] Figure 3 is a structural block diagram of a vehicle maintenance mode control device in a second embodiment of the present invention; and

[0035] Figure 4 It is an action flow chart of the vehicle maintenance mode control method in the second embodiment of the present invention. DETAILED DESCRIPTION

[0036] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0037] <Example 1>

[0038] Figure 1 It is a structural block diagram of the vehicle maintenance mode control device in the first embodiment of the present invention.

[0039] like Figure 1 As shown, in the first embodiment, the vehicle maintenance mode control device 10 includes a maintenance mode switch 11 and a vehicle controller 12 .

[0040] The maintenance mode switch 11 is a maintenance mode switch with a self-locking function, which is arranged in the cab and is connected to the vehicle controller 12 through a signal line. The maintenance mode switch 11 has a manually pressed activation button and a cancel button. Once the activation button is pressed, the maintenance mode switch 11 sends a maintenance mode activation signal to the vehicle controller 12; once the cancel button is pressed, the maintenance mode switch 11 sends a maintenance mode cancel signal to the vehicle controller 12.

[0041] The vehicle controller 12 is used as the core control unit of the vehicle, and is used to receive the maintenance mode activation signal and the maintenance mode cancellation signal sent by the maintenance mode switch 11, and control the vehicle to enter or exit the maintenance mode according to the received signal. The vehicle controller 12 has a power gear management module 121, a mode control module 122, a low voltage power up and down control module 123, a high voltage power up and down control module 124 and a power system control module 125.

[0042] The power gear management module 121 is used to detect the current power gear state of the vehicle as the current power gear state when the vehicle controller 12 receives the maintenance mode activation signal; the power gear state includes the power OFF gear state, the low voltage state and the high voltage state. In the first embodiment, the power gear management module 121 comprehensively determines the current power gear state of the vehicle based on information such as the vehicle's ignition key state, the high voltage contactor state, and the DC bus voltage.

[0043] The mode control module 122 is used to control the low-voltage power on and off control module 123 to limit or allow the low-voltage power distribution system to be powered on according to the maintenance mode activation signal or the maintenance mode cancellation signal, and when the current power gear state is the power OFF gear state, so that the vehicle enters or exits the maintenance mode of limiting the low-voltage power-on state; or control the high-voltage power on and off control module 124 to limit or allow the high-voltage power distribution system to be powered on when the previous power gear state is the low-voltage power state, so that the vehicle enters or exits the maintenance mode of limiting the high-voltage power-on state; or control the power system control module 125 to limit or allow the power system to enter a drivable working mode when the current power gear state is the high-voltage power state, so that the vehicle enters or exits the maintenance mode of limiting the drivable state.

[0044] The low voltage power on and off control module 123 is used to restrict or allow the low voltage power distribution system to be powered on.

[0045] The high voltage power on and off control module 124 is used to limit or allow the high voltage power distribution system to be powered on.

[0046] The power system control module 125 is used to restrict or allow the power system to enter a drivable working mode.

[0047] In the first embodiment, the maintenance mode switch 11 also has a maintenance status indicator light 111, which is used to remind maintenance personnel that the maintenance mode of the vehicle has been activated, thereby effectively avoiding misjudgment caused by system failure. Once the mode control module 122 controls the low-voltage power up and down control module 123, the high-voltage power up and down control module 124 or the power system control module 125 to work so that the vehicle enters the corresponding maintenance mode, the vehicle controller 12 controls the maintenance status indicator light 111 to turn on; once the mode control module 122 controls the low-voltage power up and down control module 123, the high-voltage power up and down control module 124 or the power system control module 125 to work so that the vehicle exits the corresponding maintenance mode, the vehicle controller 12 controls the maintenance status indicator light 111 to turn off.

[0048] Figure 2 It is an action flow chart of the vehicle maintenance mode control method in the first embodiment of the present invention.

[0049] like Figure 2 As shown, in the first embodiment, the action flow of the vehicle maintenance mode control method using the above-mentioned vehicle maintenance mode control device 10 includes the following steps:

[0050] Step S1 - 1 , once the activation button is pressed, the maintenance mode switch 11 sends a maintenance mode activation signal to the vehicle controller 12 .

[0051] Step S1 - 2 , once the vehicle controller 12 receives the maintenance mode activation signal sent by the maintenance mode switch 11 , the power gear management module 121 detects the current power gear state of the vehicle as the current power gear state.

[0052] Step S1-3, when the current power gear state is the power OFF gear state, the mode control module 122 controls the low-voltage power on and off control module 123 to work, restricts the power on of the low-voltage distribution system, so that the vehicle enters the maintenance mode of restricting the low-voltage power-on state to prevent accidental starting of the vehicle; when the current power gear state is the low-voltage power state, the mode control module 122 controls the high-voltage power on and off control module 124 to work, restricts the power on of the high-voltage distribution system, so that the vehicle enters the maintenance mode of restricting the high-voltage power-on state to ensure electrical safety; when the current power gear state is the high-voltage power state, the mode control module 122 controls the power system control module 125 to work, restricts the power system from entering the drivable working mode, so that the vehicle enters the maintenance mode of restricting the drivable state to prevent accidental movement of the vehicle.

[0053] Step S1 - 4 , once the cancel button is pressed, the maintenance mode switch 11 sends a maintenance mode cancel signal to the vehicle controller 12 .

[0054] Step S1-5, once the vehicle controller 12 receives the maintenance mode cancellation signal sent by the maintenance mode switch 11, the mode control module 122 controls the low-voltage power on and off control module 123 to power on the low-voltage power distribution system, or controls the high-voltage power on and off control module 124 to power on the high-voltage power distribution system, or controls the power system control module 125 to make the power system enter a drivable working mode, thereby causing the vehicle to exit the current maintenance mode and then enter the end state.

[0055] The first embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the vehicle maintenance mode control method described above are implemented.

[0056] The electronic device may be a terminal, and includes a processor, a memory, a communication interface, a display screen, and an input device connected via a system bus.

[0057] The processor of the electronic device is used to provide computing and control capabilities.

[0058] The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium.

[0059] The communication interface of the electronic device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, operator network, NFC (near field communication) or other technologies.

[0060] The display screen of the electronic device may be a liquid crystal display screen or an electronic ink display screen.

[0061] The input device of the electronic device may be a touch layer covering the display screen, or a key, trackball or touchpad provided on the housing of the electronic device, or an external keyboard, touchpad or mouse.

[0062] The first embodiment further provides a computer-readable storage medium, which stores a program code executable by a processor. When the program code is executed by the processor, the processor executes the steps of the above-mentioned vehicle maintenance mode control method.

[0063] The computer-readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0064] Functions and Effects of Embodiment 1

[0065] According to the vehicle maintenance mode control device, method, electronic device and storage medium involved in the first embodiment, since there is a maintenance mode switch, the maintenance mode switch has an activation button and a cancel button. Once the activation button or the cancel button is pressed, the maintenance mode switch sends a maintenance mode activation signal or a maintenance mode cancel signal to the vehicle controller. The power gear management module can detect the current power gear state of the vehicle as the current power gear state. The mode control module can control the low voltage power up and down control module, the high voltage power up and down control module or the power system control module according to the maintenance mode activation signal or the maintenance mode cancel signal and different current power gear states to make the vehicle enter or exit the maintenance mode of limiting the low voltage power-on state, limiting the high voltage power-on state or limiting the drivable state. On the one hand, the maintenance mode switch needs to be manually operated to activate or cancel the operation, which greatly improves the convenience of the mode switching operation and ensures the safety in the maintenance scene. On the other hand, the vehicle controller controls the vehicle to enter the corresponding maintenance mode of the restricted state according to the current power gear state of the vehicle, which can meet the safety requirements in different maintenance scenes.

[0066] <Example 2>

[0067] Embodiment 2 is a further improvement of embodiment 1. The same symbols are given to the same structures as those in embodiment 1, and the same descriptions are omitted.

[0068] Figure 3 It is a structural block diagram of a vehicle maintenance mode control device in Embodiment 2 of the present invention.

[0069] like Figure 3 As shown, in the second embodiment, the vehicle maintenance mode control device 10 includes a maintenance mode switch 11 , a vehicle controller 12 and a position sensor 13 .

[0070] The position sensor 13 is arranged under the cab and is connected to the vehicle controller 12 through a signal line for real-time monitoring of the cab's flipping state. Once the cab is flipped up, the position sensor 13 sends a maintenance mode activation signal to the vehicle controller 12; once the cab is flipped back down, the position sensor 13 sends a maintenance mode cancellation signal to the vehicle controller 12.

[0071] The vehicle controller 12 includes a power level management module 121 , a mode control module 122 , a low voltage power up and down control module 123 , a high voltage power up and down control module 124 , a power system control module 125 and a mode determination module 126 .

[0072] The mode determination module 126 is used to determine whether the vehicle is currently in a maintenance mode activation state when the vehicle controller 12 receives a maintenance mode activation signal sent by the position sensor 13 .

[0073] The power level management module 121 is used to detect the current power level state of the vehicle as the current power level state when the mode determination module 126 determines that the vehicle is not in the maintenance mode activation state.

[0074] In addition to the functions in the first embodiment, the mode control module 122 is also used to control the low-voltage power-on and power-off control module 123 to limit or allow the low-voltage power distribution system to be powered on according to the maintenance mode activation signal or the maintenance mode cancellation signal sent by the position sensor 13 when the current power gear state is the power OFF gear state, thereby allowing the vehicle to enter or exit the maintenance mode of limiting the low-voltage power-on state to prevent accidental movement of the vehicle; or control the high-voltage power-on and power-off control module 124 to limit or allow the high-voltage power distribution system to be powered on when the current power gear state is the low-voltage power state, thereby allowing the vehicle to enter or exit the maintenance mode of limiting the high-voltage power-on state to ensure electrical safety; or control the power system control module to limit or allow the power system to enter a drivable working mode when the current power gear state is the high-voltage power state, thereby allowing the vehicle to enter or exit the maintenance mode of limiting the drivable state to prevent accidental movement of the vehicle.

[0075] Figure 4 It is an action flow chart of the vehicle maintenance mode control method in the second embodiment of the present invention.

[0076] like Figure 4 As shown, in the second embodiment, the action flow of the vehicle maintenance mode control method using the above-mentioned vehicle maintenance mode control device 10 is as follows:

[0077] Step S2 - 1 , once the cab is flipped up, the position sensor 13 sends a maintenance mode activation signal to the vehicle controller 12 .

[0078] Step S2-2, once the vehicle controller 12 receives the maintenance mode activation signal sent by the position sensor 13, the mode judgment module 126 determines whether the vehicle is in the maintenance mode activation state. When the judgment result is no, enter step S2-3; otherwise, enter the end state.

[0079] Step S2-3: the power level management module 121 detects the current power level state of the vehicle as the current power level state.

[0080] Step S2-4, when the current power gear state is the power OFF gear state, the mode control module 122 controls the low-voltage power on and off control module 123 to work, restricts the power on of the low-voltage distribution system, and thus the vehicle enters the maintenance mode of restricting the low-voltage power-on state; when the current power gear state is the low-voltage power state, the mode control module 122 controls the high-voltage power on and off control module 124 to work, restricts the power on of the high-voltage distribution system, and thus the vehicle enters the maintenance mode of restricting the high-voltage power-on state; when the current power gear state is the high-voltage power state, the mode control module 122 controls the power system control module 125 to work, restricts the power system from entering the drivable working mode, and thus the vehicle enters the maintenance mode of restricting the drivable state.

[0081] Step S2 - 5 , once the cab is flipped over and reset, the position sensor 13 sends a maintenance mode cancellation signal to the vehicle controller 12 .

[0082] Step S2-6, once the vehicle controller 12 receives the maintenance mode cancellation signal sent by the position sensor 13, the mode control module 122 controls the low-voltage power on and off control module 123 to power on the low-voltage power distribution system, or controls the high-voltage power on and off control module 124 to power on the high-voltage power distribution system, or controls the power system control module 125 to make the power system enter a drivable working mode, thereby causing the vehicle to exit the current maintenance mode and then enter the end state.

[0083] The second embodiment also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the vehicle maintenance mode control method described above are implemented.

[0084] The second embodiment further provides a computer-readable storage medium, which stores a program code executable by a processor. When the program code is executed by the processor, the processor executes the steps of the vehicle maintenance mode control method as described above.

[0085] Functions and Effects of Embodiment 2

[0086] According to the vehicle maintenance mode control device, method, electronic device and storage medium involved in the second embodiment, in addition to the functions and effects of the first embodiment, since it also has a position sensor, once the cab is flipped up or flipped back to its original position, the position sensor sends a maintenance mode activation signal or a maintenance mode cancellation signal to the vehicle controller, and the mode judgment module can judge whether the vehicle is in the maintenance mode activation state. When the vehicle is not in the maintenance mode activation state, the mode control module can control the low-voltage power-on and power-off control module, the high-voltage power-on and power-off control module or the power system control module according to the maintenance mode activation signal or the maintenance mode cancellation signal and different current power gear states to make the vehicle enter or exit the maintenance mode of limiting the low-voltage power-on state, limiting the high-voltage power-on state or limiting the drivable state, thereby constituting a redundant measure for the maintenance mode switch, avoiding the potential risks caused by forgetting to activate the maintenance mode switch due to negligence during vehicle maintenance, not only improving the reliability and stability of the maintenance mode control device, but also making the activation of the maintenance mode more intelligent and convenient.

[0087] The above-mentioned embodiments are preferred examples of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A vehicle maintenance mode control device, characterized in that: include: Vehicle controller; as well as The maintenance mode switch is arranged in the cab and is in communication with the vehicle controller, and has an activation button and a cancel button. The vehicle controller includes a power gear management module, a mode control module, a low voltage power up and down control module, a high voltage power up and down control module and a power system control module. Once the activation button is pressed, the maintenance mode switch sends a maintenance mode activation signal to the vehicle controller as a first maintenance mode activation signal. Once the vehicle controller receives the first maintenance mode activation signal, the power gear management module detects the current power gear state of the vehicle as the first current power gear state, wherein the power gear state includes the power OFF gear state, the low voltage state and the high voltage state. When the first current power gear state is the power OFF gear state, the mode control module controls the low-voltage power on and off control module to work, restricting the low-voltage power distribution system from being powered on, thereby causing the vehicle to enter a maintenance mode that restricts the low-voltage power on state. When the first current power gear state is a low voltage power state, the mode control module controls the high voltage power on and off control module to operate, restricting the power on of the high voltage power distribution system, thereby causing the vehicle to enter a maintenance mode restricting the high voltage power on state. When the first current power gear state is a high voltage state, the mode control module controls the power system control module to operate, restricting the power system from entering a drivable working mode, thereby causing the vehicle to enter a maintenance mode with a restricted drivable state. Once the cancel button is pressed, the maintenance mode switch sends a maintenance mode cancel signal to the vehicle controller as a first maintenance mode cancel signal. Once the vehicle controller receives the first maintenance mode cancellation signal, the mode control module controls the low-voltage power up and down control module to power on the low-voltage power distribution system, or controls the high-voltage power up and down control module to power on the high-voltage power distribution system, or controls the power system control module to make the power system enter a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

2. The vehicle maintenance mode control device according to claim 1, characterized in that: Also includes: A position sensor is arranged below the cab and is in communication with the vehicle controller, and is used to monitor the flipping state of the cab in real time. The vehicle controller also has a mode determination module. Once the cab is flipped up, the position sensor sends a maintenance mode activation signal to the vehicle controller as a second maintenance mode activation signal. Once the vehicle controller receives the second maintenance mode activation signal, the mode determination module determines whether the vehicle is in a maintenance mode activation state. Once the mode determination module determines that the vehicle is not in the maintenance mode activation state, the power gear management module detects the current power gear state of the vehicle as the second current power gear state, When the second current power gear state is the power OFF gear state, the mode control module controls the low voltage power on and off control module to work, restricting the low voltage power distribution system from being powered on, thereby causing the vehicle to enter a maintenance mode that restricts the low voltage power on state. When the second current power gear state is a low voltage power state, the mode control module controls the high voltage power on and off control module to operate, restricting the high voltage power distribution system from being powered on, thereby causing the vehicle to enter a maintenance mode that restricts the high voltage power on state. When the second current power gear state is a high voltage state, the mode control module controls the power system control module to operate, restricting the power system from entering a drivable working mode, thereby causing the vehicle to enter a maintenance mode with a restricted drivable state. Once the cab is flipped over and reset, the position sensor sends a maintenance mode cancel signal to the vehicle controller as a second maintenance mode cancel signal. Once the vehicle controller receives the second maintenance mode cancellation signal, the mode control module controls the low-voltage power up and down control module to power on the low-voltage power distribution system, or controls the high-voltage power up and down control module to power on the high-voltage power distribution system, or controls the power system control module to make the power system enter a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

3. The vehicle maintenance mode control device according to claim 1, characterized in that: in, The maintenance mode switch also has a maintenance status indicator light.

4. The vehicle maintenance mode control device according to claim 1, characterized in that: in, The maintenance mode switch is a maintenance mode switch with a self-locking function.

5. A vehicle maintenance mode control method, characterized in that: The following steps are involved: Once the activation button of the maintenance mode switch is pressed, a maintenance mode activation signal is sent to the vehicle controller as a first maintenance mode activation signal; Once the vehicle controller receives the first maintenance mode activation signal, it detects the current power gear state of the vehicle as the first current power gear state, where the power gear state includes the power OFF gear state, the low voltage state and the high voltage state; When the first current power gear state is the power OFF gear state, the low-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode in which the low-voltage power-on state is restricted; when the first current power gear state is the low-voltage power state, the high-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode in which the high-voltage power-on state is restricted; when the first current power gear state is the high-voltage power state, the power system is restricted from entering a drivable working mode, so that the vehicle enters a maintenance mode in which the drivable state is restricted; Once the cancel button of the maintenance mode switch is pressed, a maintenance mode cancel signal is sent to the vehicle controller as a first maintenance mode cancel signal. Once the vehicle controller receives the first maintenance mode cancellation signal, it powers on the low-voltage power distribution system, or powers on the high-voltage power distribution system, or puts the power system into a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

6. The vehicle maintenance mode control method according to claim 5, characterized in that: The following steps are also included: Once the cab is flipped up, the position sensor sends a maintenance mode activation signal to the vehicle controller as a second maintenance mode activation signal; Once the vehicle controller receives the second maintenance mode activation signal, it determines whether the vehicle is in a maintenance mode activation state; Once it is determined that the vehicle is not in the maintenance mode activation state, the current power gear state of the vehicle is detected as a second current power gear state; When the second current power gear state is the power OFF gear state, the low-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode in which the low-voltage power-on state is restricted; when the second current power gear state is the low-voltage power state, the high-voltage power distribution system is restricted from being powered on, so that the vehicle enters a maintenance mode in which the high-voltage power-on state is restricted; when the second current power gear state is the high-voltage power state, the power system is restricted from entering a drivable working mode, so that the vehicle enters a maintenance mode in which the drivable state is restricted; Once the cab is flipped over and reset, the position sensor sends a maintenance mode cancel signal to the vehicle controller as a second maintenance mode cancel signal. Once the vehicle controller receives the second maintenance mode cancellation signal, it powers on the low-voltage power distribution system, or powers on the high-voltage power distribution system, or puts the power system into a drivable working mode, thereby causing the vehicle to exit the current maintenance mode.

7. An electronic device, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the vehicle maintenance mode control method as claimed in any one of claims 5 to 6 when executing the computer program.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program codes executable by a processor, and when the program codes are executed by the processor, the processor executes the steps of the vehicle maintenance mode control method according to any one of claims 5 to 6.

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