Methods, devices, equipment and storage media for preventing PEPS from accidentally entering emergency shutdown

Abstract

This invention belongs to the field of automotive technology and discloses a method, device, equipment, and storage medium for preventing the PEPS (Power, Power, and Electronic Controls) system from accidentally triggering an emergency shutdown. Upon receiving a start signal from the ignition switch, the PEPS controller switches its internal power to the ACC (Adaptive Cruise Control) position, drives the ACC relay, and detects the feedback signal from the ACC relay. If the feedback signal is invalid, it outputs a message indicating that the vehicle's power is not connected and keeps the external power supply off. After a period of time, the internal power switches to the OFF position. If a start signal from the ignition switch is received again within a certain period, the internal power switches to the IGN (Inductively Connected) position, and the feedback signals from both the ACC and IGN relays are detected. If both feedback signals are invalid, it outputs a message indicating that the vehicle's power is not connected and keeps the external power supply off. After a period of time, the internal power switches to the OFF position. This effectively prevents the vehicle from accidentally triggering the ignition switch when the vehicle's power is not connected, thus avoiding an emergency shutdown.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to a method, apparatus, device, and storage medium for preventing PEPS from accidentally triggering an emergency shutdown. Background Technology

[0002] To enhance safety, the Passive Entry Passive Start (PEPS) system for commercial vehicles can switch power to Adaptive Cruise Control (ACC) and enter emergency shutdown mode when the vehicle speed is abnormal (i.e., the vehicle has not come to a complete stop) or when the ABS (Antilock Brake System) malfunctions. This is done according to the set control logic. If the start switch is pressed and held for a period of time or the start switch is pressed three times within a specified time, the PEPS system will assist the vehicle in stopping urgently and ensure the safety of the driver, passengers and the vehicle.

[0003] Unlike passenger vehicles, most commercial vehicles have a main power switch. After the vehicle is turned off, turning off the main power switch disconnects power to electrical equipment that is not needed or has a power-off memory. If the main power switch is not turned on before starting the commercial vehicle, pressing the start switch twice will switch the PEPS (Power, Electricity, and Power) to the ON position. Because the main power switch is not on, the ABS control is not powered (the ABS controller is not connected to constant power) and will not send a vehicle speed signal, meeting the PEPS emergency start condition. At this time, the PEPS will switch the power to ACC (Adaptive Cruise Control) and enter an emergency shutdown state. When the vehicle is powered on normally again, the engine will not start normally, leading users to mistakenly believe that the PEPS is malfunctioning, causing complaints. To solve the problem of commercial vehicles mistakenly entering an emergency shutdown state, the current method is to add an interface to the PEPS system to collect and detect the main power switch signal. This method requires the acquisition circuit to have high reliability and redundancy. If this acquisition circuit fails, the entire vehicle will be unable to power on normally and diagnose faults, thus reducing reliability.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a method, apparatus, device, and storage medium for preventing PEPS systems from accidentally entering emergency shutdown, aiming to solve the technical problem of low reliability in preventing PEPS systems from accidentally entering emergency shutdown in the prior art.

[0006] To achieve the above objectives, the present invention provides a method for preventing PEPS from accidentally triggering an emergency shutdown, the method comprising the following steps:

[0007] When a start signal is received from the start switch, the internal power supply of the PEPS controller is switched to the ACC position, the ACC relay is driven, and the feedback signal of the ACC relay is detected.

[0008] When the feedback signal of the ACC relay is invalid, a prompt message indicating that the vehicle power supply is not connected is output, and the external power supply is kept off. After a preset time, the internal power supply is switched to the OFF position.

[0009] When the start signal from the start switch is received again, the internal power supply of the PEPS controller is switched to the IGN setting, and the feedback signals of the ACC relay and the IGN relay are detected respectively.

[0010] When the feedback signals of the ACC relay and the IGN relay are both invalid, a prompt message indicating that the vehicle power supply is not connected is output, and the external power supply is kept off. After the preset time, the internal power supply is switched to the OFF position to prevent accidental activation of the start switch and cause PEPS to enter emergency shutdown.

[0011] Optionally, when the feedback signal from the ACC relay is invalid, outputting a message indicating that the vehicle power supply is not connected, keeping the external power supply off, and switching the internal power supply to the OFF position after a preset time includes:

[0012] The ACC relay includes a first ACC relay and a second ACC relay;

[0013] The feedback signals of the first ACC relay and the second ACC relay are detected respectively;

[0014] When at least one of the feedback signals of the first ACC relay and the second ACC relay is a valid signal, the external power supply of the PEPS controller is switched to ACC.

[0015] When both the feedback signals from the first ACC relay and the second ACC relay are invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal and keeps the external power supply off. After the preset time, the internal power supply is switched to the OFF position.

[0016] Optionally, when both the feedback signals from the ACC relay and the IGN relay are invalid, an error message indicating that the vehicle power supply is not connected is output, and the external power supply remains off. After a preset time, the internal power supply is switched to the OFF position, including:

[0017] The IGN relay includes a first IGN relay, a second IGN relay, and a third IGN relay;

[0018] The feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are detected respectively;

[0019] When at least one of the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay is valid, the external power supply of the PEPS controller is switched to IGN.

[0020] When all feedback signals from the first IGN relay, the second IGN relay, and the third IGN relay are invalid, and at least one of the feedback signals from the first ACC relay and the second ACC relay is valid, the external power supply of the PEPS controller is switched to ACC.

[0021] When the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal, keeps the external power supply off, and switches the internal power supply to the OFF position after the preset time.

[0022] Optionally, after detecting the feedback signals of the first ACC relay and the second ACC relay respectively, the method further includes:

[0023] When the feedback signal of the first ACC relay is invalid and the feedback signal of the second ACC relay is valid, a fault signal of the first ACC relay is generated and sent to the instrument, so that the instrument outputs the fault information of the first ACC relay according to the fault signal of the first ACC relay.

[0024] When the feedback signal of the first ACC relay is a valid signal and the feedback signal of the second ACC relay is an invalid signal, a fault signal of the second ACC relay is generated and sent to the instrument, so that the instrument outputs the fault information of the second ACC relay according to the fault signal of the second ACC relay.

[0025] Upon receiving a valid signal from the IGN relay, a fault signal for the IGN relay is generated and sent to the instrument, causing the instrument to output fault information of the IGN relay based on the fault signal.

[0026] When both the feedback signals from the first ACC relay and the second ACC relay are invalid, a vehicle power supply failure signal is generated and sent to the instrument panel, causing the instrument panel to output a vehicle power supply failure prompt message based on the vehicle power supply failure signal.

[0027] Optionally, after detecting the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay, the method further includes:

[0028] When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are inconsistent, the relay with the feedback signal is determined to be invalid, a fault signal of the relay with the feedback signal is generated, and the fault signal is output to the instrument, so that the instrument outputs fault information based on the fault signal;

[0029] When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all valid signals, the feedback signals of the first ACC relay and the second ACC relay are detected. When there are invalid signals in the feedback signals of the first ACC relay and the second ACC relay, the relay with invalid feedback signals is determined, a fault signal of the relay with invalid feedback signals is generated, and the fault signal is output to the instrument, so that the instrument outputs fault information according to the fault signal.

[0030] When the feedback signals from the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel, causing the instrument panel to output a vehicle power supply failure prompt message based on the vehicle power supply failure signal.

[0031] Optionally, before switching the internal power supply of the PEPS controller to the ACC position, driving the ACC relay, and detecting the feedback signal of the ACC relay upon receiving the start signal from the start switch, the method further includes:

[0032] When the internal power supply of the PEPS controller is OFF, the feedback signal of the relay of the PEPS controller is detected. When a valid signal is detected, a fault signal of the relay corresponding to the valid signal is generated and sent to the instrument, so that the instrument outputs the fault information of the relay corresponding to the valid signal according to the fault signal of the relay corresponding to the valid signal.

[0033] Optionally, after outputting a prompt message indicating that the vehicle power supply is not connected and keeping the external power supply in the off state when both the feedback signals of the ACC relay and the IGN relay are invalid signals, the method further includes:

[0034] The start signal is detected, and when the start signal is a remote start signal, a prompt message indicating that the vehicle power is not connected is sent to the APP through the network platform.

[0035] Furthermore, to achieve the above objectives, the present invention also proposes a method to prevent PEPS from accidentally entering the emergency shutdown device, the method comprising:

[0036] The startup module is used to switch the internal power supply of the PEPS controller to the ACC position, drive the ACC relay, and detect the feedback signal of the ACC relay when it receives the startup signal from the startup switch.

[0037] The detection module is used to output a prompt message that the vehicle power supply is not connected when the feedback signal of the ACC relay is invalid, and to keep the external power supply in the off state, and switch the internal power supply to the OFF position after a preset time.

[0038] The startup module is also used to switch the internal power supply of the PEPS controller to the IGN position when it receives the startup signal from the startup switch again, and to detect the feedback signals of the ACC relay and the IGN relay respectively.

[0039] The detection module is also used to output a prompt message indicating that the vehicle power supply is not connected when the feedback signals of the ACC relay and the IGN relay are both invalid signals, and to keep the external power supply in the off state. After the preset time, the internal power supply is switched to the OFF position to prevent accidental activation of the start switch from causing PEPS to enter emergency shutdown.

[0040] Furthermore, to achieve the above objectives, the present invention also proposes a method for preventing PEPS from accidentally entering an emergency shutdown device. The device includes a memory, a processor, and a program for preventing PEPS from accidentally entering an emergency shutdown device stored in the memory and executable on the processor. The program for preventing PEPS from accidentally entering an emergency shutdown device is configured to implement the steps of the method for preventing PEPS from accidentally entering an emergency shutdown device as described above.

[0041] Furthermore, to achieve the above objectives, the present invention also proposes a storage medium storing a procedure for preventing PEPS from accidentally entering emergency shutdown, wherein when the procedure is executed by a processor, it implements the steps of the method for preventing PEPS from accidentally entering emergency shutdown as described above.

[0042] This invention, upon receiving a start signal from the start switch, switches the internal power supply of the PEPS controller to the ACC position, drives the ACC relay, and detects the feedback signal from the ACC relay. If the ACC relay feedback signal is invalid, it outputs a message indicating that the vehicle power is not connected and keeps the external power supply off. Upon receiving another start signal from the start switch, the PEPS controller switches its internal power supply to the IGN position and detects the feedback signals from both the ACC and IGN relays. If both feedback signals are invalid, it outputs a message indicating that the vehicle power is not connected and keeps the external power supply off, preventing the PEPS from accidentally entering an emergency shutdown state. This avoids the PEPS entering an emergency shutdown state when the vehicle power is not connected, preventing the PEPS from entering an emergency shutdown state upon vehicle start-up. The PEPS controller determines whether the battery's main power switch is on through the power relay feedback signal. When the main power switch is not connected, the PEPS controller always keeps the external power supply off, thus preventing the vehicle from entering an emergency shutdown state from the ON position (IGN position) when the main power switch is not connected. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the hardware operating environment for preventing PEPS from accidentally entering the emergency shutdown device according to the embodiments of the present invention.

[0044] Figure 2 This is a flowchart illustrating the first embodiment of the method for preventing PEPS from accidentally triggering an emergency shutdown according to the present invention.

[0045] Figure 3 This is a circuit diagram of the PEPS controller in an embodiment of the method for preventing PEPS from accidentally triggering an emergency shutdown according to the present invention.

[0046] Figure 4 This is an instrument display diagram of an embodiment of the method for preventing PEPS from accidentally triggering an emergency shutdown according to the present invention;

[0047] Figure 5 This is a flowchart illustrating the second embodiment of the method for preventing PEPS from accidentally triggering an emergency shutdown according to the present invention.

[0048] Figure 6 This is a structural block diagram of the first embodiment of the present invention for preventing PEPS from accidentally entering the emergency shutdown device.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0051] Reference Figure 1 , Figure 1 This is a schematic diagram of the hardware operating environment for preventing PEPS from accidentally entering the emergency shutdown device according to the embodiments of the present invention.

[0052] like Figure 1 As shown, the device for preventing PEPS from accidentally entering the emergency shutdown system may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to establish communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wireless-Fidelity (Wi-Fi) interface). The memory 1005 may be high-speed random access memory (RAM) or stable non-volatile memory (NVM), such as a disk drive. The memory 1005 may also optionally be a storage device independent of the aforementioned processor 1001.

[0053] Those skilled in the art will understand that Figure 1 The structure shown does not constitute a limitation on preventing PEPS from accidentally entering the emergency shutdown device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0054] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating system, a network communication module, a user interface module, and a mechanism to prevent PEPS from accidentally entering the emergency shutdown procedure.

[0055] exist Figure 1In the PEPS prevention device shown, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and memory 1005 in the PEPS prevention device can be set in the device. The PEPS prevention device calls the PEPS prevention program stored in the memory 1005 through the processor 1001 and executes the PEPS prevention method provided in the embodiment of the present invention.

[0056] This invention provides a method for preventing PEPS (Powered Exhaust Power Supply) from accidentally triggering an emergency shutdown, referring to... Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of a method for preventing PEPS from accidentally triggering an emergency shutdown according to the present invention.

[0057] In this embodiment, the method for preventing PEPS from accidentally triggering an emergency shutdown includes the following steps:

[0058] Step S10: When the start signal from the start switch is received, the internal power supply of the PEPS controller is switched to the ACC position, the ACC relay is driven, and the feedback signal of the ACC relay is detected.

[0059] It should be noted that the execution subject of this embodiment is to prevent PEPS from accidentally entering the emergency shutdown device. The device for preventing PEPS from accidentally entering the emergency shutdown device has functions such as data processing, data communication and program execution. The device for preventing PEPS from accidentally entering the emergency shutdown device can be an integrated controller, a control computer or other devices, or other devices with similar functions. This embodiment does not limit the scope of the device.

[0060] Understandably, PEPS is a vehicle feature that allows you to open the doors or start the engine without using a key.

[0061] It should be understood that the emergency shutdown state is a state in which the PEPS system can switch the power to ACC and assist the vehicle to stop in an emergency when the vehicle speed is abnormal, that is, when the vehicle has not come to a complete stop or the ABS system malfunctions. According to the set control logic, if the start switch is pressed and held for a period of time, or the start switch is pressed 3 times within a specified time, the PEPS system can switch the power to ACC and assist the vehicle to stop in an emergency. In an emergency state, the power of the PEPS system will switch to ACC, at which time the engine can no longer work, thereby achieving the effect of deceleration.

[0062] In the specific implementation, when the start signal from the start switch is received, the power supply inside the PEPS controller can be switched to the ACC position according to the received start signal. At this time, the ACC relay can be driven to generate a corresponding feedback signal. The feedback signal generated by the ACC relay is detected to determine whether the current vehicle power main switch is turned on.

[0063] Step S20: When the feedback signal of the ACC relay is invalid, output a prompt message that the vehicle power supply is not connected, keep the external power supply in the off state, and switch the internal power supply to the OFF position after a preset time.

[0064] It should be noted that the signals generated by a relay can be divided into valid signals and invalid signals. When the circuit path containing the relay is in a connected state, the feedback signal generated by the relay is a valid signal. Conversely, if the circuit path containing the relay is disconnected, the feedback signal of the relay is an invalid signal.

[0065] In the specific implementation, refer to Figure 3 , Figure 3 This is a circuit diagram of the PEPS controller. The PEPS controller is powered by a constant 24V battery. It connects to the instrument and is also grounded via a port. The port connects to the orange, green, and red SSB (Start and Stop Button) indicator lights, and two SSB buttons, SSB Button 1 and SSB Button 2, corresponding to the start / stop and start switches, respectively. The PEPS controller also includes several relay output ports, connected to ACC and IGN relays. The ACC relays include ACC1 and ACC2, and the IGN relays include IG_1A, IG_1B, and IG_2. Each relay can receive the output signal from the PEPS controller and generate a feedback signal. Upon receiving a feedback signal from the ACC relay, the system can detect this signal. If the ACC relay feedback signal is invalid, PEPS can determine that the vehicle's main power switch is not currently on. When PEPS detects an invalid ACC feedback signal, it can generate a "Vehicle Power Off" message and keep the external power supply in the OFF state. This "Vehicle Power Off" message is then sent to the vehicle's instrument panel for display. The display interface is as follows: Figure 4As shown, a message stating "Vehicle power not connected" is displayed in large text in the center of the current instrument display interface. At this time, the external power supply is kept in the OFF state, and the internal power supply is switched to the OFF state after a preset time. The preset time can be set according to the actual situation, and this embodiment does not limit it.

[0066] Furthermore, the step of outputting a prompt message indicating that the vehicle power supply is not connected when the feedback signal of the ACC relay is invalid, keeping the external power supply in the off state, and switching the internal power supply to the OFF position after the preset time includes:

[0067] The ACC relay includes a first ACC relay and a second ACC relay;

[0068] The feedback signals of the first ACC relay and the second ACC relay are detected respectively;

[0069] When at least one of the feedback signals of the first ACC relay and the second ACC relay is a valid signal, the external power supply of the PEPS controller is switched to ACC.

[0070] When both the feedback signals from the first ACC relay and the second ACC relay are invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal and keeps the external power supply off. After the preset time, the internal power supply is switched to the OFF position.

[0071] In its implementation, when the start switch is active and pressed, the PEPS controller first switches the internal power to the ACC position, simultaneously driving the ACC1 and ACC2 relays to engage, and detecting the feedback signals of the ACC1 and ACC2 relays. When at least one of the feedback signals from the two ACC relays is active, the PEPS controller determines that the main power switch is on and switches the external power to ACC. When both feedback signals from the two ACC relays are inactive, the PEPS controller determines that the main power switch is not on and sends a "vehicle power not connected" signal to the instrument panel for indication, while the external power remains off.

[0072] Step S30: When the start signal from the start switch is received again, the internal power supply of the PEPS controller is switched to the IGN position, and the feedback signals of the ACC relay and the IGN relay are detected respectively.

[0073] It should be noted that the IGN setting refers to the vehicle's ignition setting. When the vehicle's power supply is in the IGN setting, the vehicle's engine can operate normally.

[0074] In the specific implementation, if a start signal is received again within a preset time after the last start signal is received, the internal power supply of the PEPS controller can be switched to the IGN setting, and the feedback signals of the ACC relay and the IGN relay can be detected respectively. When the PEPS internal power supply is in the IGN setting, the feedback signals of the two ACC relays and the three IGN relays are detected respectively, and the detection results of the feedback signals of the ACC relay and the IGN relay are obtained.

[0075] Step S40: When the feedback signals of the ACC relay and the IGN relay are both invalid signals, output a prompt message that the vehicle power supply is not connected, keep the external power supply in the off state, and switch the internal power supply to the OFF position after the preset time to prevent accidental activation of the start switch and cause PEPS to enter emergency shutdown.

[0076] Furthermore, when both the feedback signals from the ACC relay and the IGN relay are invalid, an output message indicating that the vehicle power supply is not connected is displayed, and the external power supply remains off. After a preset time, the internal power supply is switched to the OFF position, including:

[0077] The IGN relay includes a first IGN relay, a second IGN relay, and a third IGN relay;

[0078] The feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are detected respectively;

[0079] When at least one of the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay is valid, the external power supply of the PEPS controller is switched to IGN.

[0080] When all feedback signals from the first IGN relay, the second IGN relay, and the third IGN relay are invalid, and at least one of the feedback signals from the first ACC relay and the second ACC relay is valid, the external power supply of the PEPS controller is switched to ACC.

[0081] When the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal, keeps the external power supply off, and switches the internal power supply to the OFF position after a preset time.

[0082] In its implementation, the PEPS controller switches the internal power supply to the IGN position, simultaneously energizing relays ACC1, ACC2, IG1A, IG1B, and IG2, and detecting feedback signals from all power relays. When at least one of the three IGN relays is active, the PEPS controller determines that the main power switch is on and switches the external power supply to IGN. When all three IGN relays are inactive, but at least one of the feedback signals from the two ACC relays is active, the PEPS controller also determines that the main power switch is active and switches the external power supply to ACC. When all power relay feedback signals are inactive, the PEPS controller determines that the main power switch is inactive, switches the external power supply to OFF, and sends a "Vehicle power not connected" signal to the instrument panel.

[0083] In this embodiment, upon receiving a start signal from the start switch, the PEPS controller switches its internal power to the ACC position, drives the ACC relay, and detects the feedback signal from the ACC relay. If the feedback signal from the ACC relay is invalid, it outputs a message indicating that the vehicle power is not connected and keeps the external power supply off. Upon receiving another start signal from the start switch, the PEPS controller switches its internal power to the IGN position and detects the feedback signals from both the ACC and IGN relays. If both feedback signals from the ACC and IGN relays are invalid, it outputs a message indicating that the vehicle power is not connected and keeps the external power supply off. This prevents the PEPS from accidentally entering an emergency shutdown state when the vehicle power is not connected. It avoids the PEPS entering an emergency shutdown state when the vehicle starts, as the external power supply to the PEPS may be connected when the vehicle power is not connected. The PEPS controller determines whether the main power switch of the battery is connected through the feedback signal from the power relay. When the main power switch is not connected, the PEPS controller always keeps the external power supply off, thus preventing the vehicle from accidentally entering an emergency shutdown state from the ON position (IGN position) when the main power switch is not connected.

[0084] refer to Figure 5 , Figure 5 This is a flowchart illustrating a second embodiment of a method for preventing PEPS from accidentally triggering an emergency shutdown according to the present invention.

[0085] Based on the first embodiment described above, the method for preventing PEPS from accidentally triggering an emergency shutdown in this embodiment further includes, after step S20:

[0086] Step S201: When the feedback signal of the first ACC relay is invalid and the feedback signal of the second ACC relay is valid, a fault signal of the first ACC relay is generated and sent to the instrument, so that the instrument outputs the fault information of the first ACC relay according to the fault signal of the first ACC relay.

[0087] Step S202: When the feedback signal of the first ACC relay is a valid signal and the feedback signal of the second ACC relay is an invalid signal, a fault signal of the second ACC relay is generated and sent to the instrument, so that the instrument outputs the fault information of the second ACC relay according to the fault signal of the second ACC relay.

[0088] Step S203: Upon receiving a valid signal from the IGN relay, a fault signal for the IGN relay is generated and sent to the instrument, causing the instrument to output fault information of the IGN relay based on the fault signal.

[0089] Step S204: When both the feedback signals of the first ACC relay and the second ACC relay are invalid signals, a vehicle power supply failure signal is generated and sent to the instrument, so that the instrument outputs a vehicle power supply failure prompt message based on the vehicle power supply failure signal.

[0090] In the specific implementation, refer to Figure 4The PEPS controller is powered by a 24V battery. It connects to the instrument and includes several relay output ports, which connect to ACC and IGN relays respectively. The ACC relays include a first ACC relay (ACC1) and a second ACC relay (ACC2). The PEPS controller outputs control signals to ACC1 and ACC2, and each relay engages according to the control signals, putting it in a conducting state. The PEPS controller receives feedback signals from these relays. When detecting the feedback signals of the ACC relays, it can detect the feedback signals of ACC1 and ACC2 separately. If ACC1 has an invalid signal, a fault signal is generated and transmitted to the instrument, causing the instrument to display the fault information for ACC1. Similarly, if ACC2 has an invalid signal, a fault signal is generated and transmitted to the instrument, causing the instrument to display the fault information for ACC2. If a valid signal is detected from the IGN relay when the internal power supply is in the ACC position, it indicates a fault in the IGN relay. This is because the internal power supply is currently in the ACC position, not the IGN position. Under normal conditions, the IGN relay should not have a valid signal when the internal power supply is in the ACC position. When both ACC1 and ACC2 relays are invalid, a signal indicating that the vehicle power supply is not connected is generated and sent to the instrument panel, causing the instrument panel to display a message indicating that the vehicle power supply is not connected. In other words, as long as at least one of the ACC1 and ACC2 relays has a valid feedback signal, the current vehicle power supply status can be determined to be not connected.

[0091] Furthermore, after detecting the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay, the method further includes:

[0092] When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are inconsistent, the relay with the feedback signal is determined to be invalid, a fault signal of the relay with the feedback signal is generated, and the fault signal is output to the instrument, so that the instrument outputs fault information based on the fault signal;

[0093] When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all valid signals, the feedback signals of the first ACC relay and the second ACC relay are detected. When there are invalid signals in the feedback signals of the first ACC relay and the second ACC relay, the relay with invalid feedback signals is determined, a fault signal of the relay with invalid feedback signals is generated, and the fault signal is output to the instrument, so that the instrument outputs fault information according to the fault signal.

[0094] When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all invalid signals and at least one of the first ACC relay and the second ACC relay is valid, a feedback signal is generated as an IGN relay fault signal, and the fault signal is output to the instrument, so that the instrument outputs fault information based on the fault signal;

[0095] When the feedback signals from the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel, causing the instrument panel to output a vehicle power supply failure prompt message based on the vehicle power supply failure signal.

[0096] In its implementation, when the PEPS internal power state is IGN, if the feedback signals from the three relays are inconsistent, the PEPS controller will determine that the relay with the invalid feedback signal is faulty. For example, if relay IG1A has a valid feedback signal, but relays IG1B and IG2 have invalid feedback signals, the PEPS controller will determine that relays IG1B and IG2 are faulty. If all three IGN relays have invalid feedback signals, but at least one of the two ACC relays has a valid feedback signal, the PEPS controller will determine that the IGN relays are faulty. If all three IGN relays have valid feedback signals, but one or two ACC relays are invalid, PEPS will determine that the ACC relays are faulty. If all power relay feedback signals are invalid, the PEPS controller will determine that the main power switch is not turned on and will not record any power relay faults. When a faulty relay is identified, a fault signal for the corresponding relay is generated and transmitted to the instrument panel for display. If it is determined that the vehicle power is not turned on, a vehicle power not turned on signal is generated and displayed on the instrument panel.

[0097] Furthermore, before switching the internal power supply of the PEPS controller to the ACC position, driving the ACC relay, and detecting the feedback signal of the ACC relay upon receiving the start signal from the start switch, the process further includes:

[0098] When the internal power supply of the PEPS controller is OFF, the feedback signal of the relay of the PEPS controller is detected. When a valid signal is detected, a fault signal of the relay corresponding to the valid signal is generated and sent to the instrument, so that the instrument outputs the fault information of the relay corresponding to the valid signal according to the fault signal of the relay corresponding to the valid signal.

[0099] In its implementation, the PEPS controller distinguishes between internal and external power supplies. When the state of the internal power supply and the state of the power relay feedback signal are inconsistent, the PEPS controller will determine that the relay is faulty (level three fault) and send an alarm to the instrument. When the PEPS internal power supply is OFF, if a power relay feedback signal is valid, the PEPS controller will determine that the relay is short-circuited, generate a short-circuit detection, and output this fault information to the instrument for display.

[0100] Furthermore, after outputting a prompt message indicating that the vehicle power supply is not connected when both the feedback signals from the ACC relay and the IGN relay are invalid, and keeping the external power supply in the off state, the method further includes:

[0101] The start signal is detected, and when the start signal is a remote start signal, a prompt message indicating that the vehicle power is not connected is sent to the APP through the network platform.

[0102] In the specific implementation, when a start signal is received, the start signal can be detected to determine whether it is a remote start signal. If the start signal is a remote start signal, the current vehicle power detection result indicating that the vehicle power is not connected can be uploaded to the network platform. The user's mobile device can have a corresponding APP installed. The APP is matched and bound to the vehicle. When the vehicle power detection indicates that the vehicle power is not connected, a prompt message indicating that the vehicle power is not connected can be sent to the APP to remind the user.

[0103] This embodiment uses relay feedback signals to determine the status of the main power switch, which can reduce the PEPS system's dependence on wiring harnesses and improve system reliability. The relay feedback signals are used for mutual verification, which reduces false alarms and missed alarms of relay faults. When a fault occurs, the information is sent to the instrument, and the user can quickly locate the cause of the fault and improve the efficiency of fault handling.

[0104] Furthermore, this embodiment of the invention also proposes a storage medium storing a procedure for preventing PEPS from accidentally entering emergency shutdown. When the procedure is executed by a processor, it implements the steps of the method for preventing PEPS from accidentally entering emergency shutdown as described above.

[0105] Reference Figure 6 , Figure 6This is a structural block diagram of the first embodiment of the present invention for preventing PEPS from accidentally entering the emergency shutdown device.

[0106] like Figure 6 As shown, the device for preventing PEPS from accidentally entering the emergency shutdown mechanism proposed in this embodiment of the invention includes:

[0107] The startup module 10 is used to switch the internal power supply of the PEPS controller to the ACC position, drive the ACC relay, and detect the feedback signal of the ACC relay when it receives the startup signal from the startup switch.

[0108] The detection module 20 is used to output a prompt message that the vehicle power supply is not connected when the feedback signal of the ACC relay is invalid, and to keep the external power supply in the off state, and switch the internal power supply to the OFF position after a preset time.

[0109] The startup module 10 is also used to switch the internal power supply of the PEPS controller to the IGN position when it receives the startup signal from the startup switch again, and to detect the feedback signals of the ACC relay and the IGN relay respectively.

[0110] The detection module 20 is also used to output a prompt message that the vehicle power supply is not connected when the feedback signals of the ACC relay and the IGN relay are both invalid signals, and to keep the external power supply in the off state. After the preset time, the internal power supply is switched to the OFF position to prevent accidental activation of the start switch from causing PEPS to enter emergency shutdown.

[0111] In this embodiment, upon receiving a start signal from the start switch, the PEPS controller switches its internal power to the ACC position, drives the ACC relay, and detects the feedback signal from the ACC relay. If the feedback signal from the ACC relay is invalid, it outputs a message indicating that the vehicle power is not connected and keeps the external power supply off. Upon receiving another start signal from the start switch, the PEPS controller switches its internal power to the IGN position and detects the feedback signals from both the ACC and IGN relays. If both feedback signals from the ACC and IGN relays are invalid, it outputs a message indicating that the vehicle power is not connected and keeps the external power supply off. This prevents the PEPS from accidentally entering an emergency shutdown state when the vehicle power is not connected. It avoids the PEPS entering an emergency shutdown state when the vehicle starts, as the external power supply to the PEPS may be connected when the vehicle power is not connected. The PEPS controller determines whether the main power switch of the battery is connected through the feedback signal from the power relay. When the main power switch is not connected, the PEPS controller always keeps the external power supply off, thus preventing the vehicle from accidentally entering an emergency shutdown state from the ON position (IGN position) when the main power switch is not connected.

[0112] In one embodiment, the detection module 20 is further configured to: detect the feedback signals of the first ACC relay and the second ACC relay respectively; when at least one of the feedback signals of the first ACC relay and the second ACC relay is a valid signal, switch the external power supply of the PEPS controller to ACC; when both the feedback signals of the first ACC relay and the second ACC relay are invalid signals, generate a vehicle power supply failure signal to the instrument panel, causing the instrument panel to output a vehicle power supply failure prompt message based on the vehicle power supply failure signal, and keep the external power supply in the off state, and switch the internal power supply to the OFF position after the preset time.

[0113] In one embodiment, the detection module 20 is further configured to: ... When the PEPS controller's external power supply is switched to ACC, and at least one of the feedback signals from the first ACC relay and the second ACC relay is valid, the external power supply is switched to ACC. When the feedback signals from the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal and keeps the external power supply off. After a preset time, the internal power supply is switched to OFF.

[0114] In one embodiment, the detection module 20 is further configured to: generate a fault signal for the first ACC relay to the instrument when the feedback signal of the first ACC relay is invalid and the feedback signal of the second ACC relay is valid, so that the instrument outputs fault information of the first ACC relay based on the fault signal of the first ACC relay; generate a fault signal for the second ACC relay to the instrument when the feedback signal of the first ACC relay is valid and the feedback signal of the second ACC relay is invalid, so that the instrument outputs fault information of the second ACC relay based on the fault signal of the second ACC relay; generate a fault signal for the IGN relay to the instrument when a valid signal of the IGN relay is received, so that the instrument outputs fault information of the IGN relay based on the fault signal of the IGN relay; and generate a vehicle power supply not connected signal to the instrument when both the feedback signals of the first ACC relay and the second ACC relay are invalid, so that the instrument outputs a vehicle power supply not connected prompt message based on the vehicle power supply not connected signal.

[0115] In one embodiment, the detection module 20 is further configured to: determine if the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are inconsistent; generate a fault signal for the relay with invalid feedback signals; and output the fault signal to an instrument, causing the instrument to output fault information based on the fault signal. When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all valid signals, the module detects the feedback signals of the first ACC relay and the second ACC relay. If invalid signals exist in the feedback signals of the first ACC relay and the second ACC relay, the module determines if the feedback signals of the relay are invalid; generates a fault signal for the relay with invalid feedback signals; and... The fault signal is output to the instrument panel, causing the instrument panel to output fault information based on the fault signal; when the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all invalid signals and at least one of the first ACC relay and the second ACC relay is valid, a feedback signal of IGN relay fault signal is generated and output to the instrument panel, causing the instrument panel to output fault information based on the fault signal; when the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid signals, a vehicle power supply not connected signal is generated and sent to the instrument panel, causing the instrument panel to output a vehicle power supply not connected prompt message based on the vehicle power supply not connected signal.

[0116] In one embodiment, the startup module 10 is further configured to detect the feedback signal of the relay of the PEPS controller when the internal power supply of the PEPS controller is OFF, and when a valid signal is detected, generate a fault signal of the relay corresponding to the valid signal to the instrument, so that the instrument outputs the fault information of the relay corresponding to the valid signal according to the fault signal of the relay corresponding to the valid signal.

[0117] In one embodiment, the detection module 20 is further configured to detect the start signal, and when the start signal is a remote start signal, send a prompt message indicating that the vehicle power supply is not connected to the APP terminal through the network platform.

[0118] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0119] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

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

[0121] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0122] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0123] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0124] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for preventing PEPS from accidentally triggering an emergency shutdown, characterized in that, The method for preventing PEPS from accidentally triggering an emergency shutdown includes: When a start signal is received from the start switch, the internal power supply of the PEPS controller is switched to the ACC position, the ACC relay is driven, and the feedback signal of the ACC relay is detected. When the feedback signal of the ACC relay is invalid, a prompt message indicating that the vehicle power supply is not connected is output, and the external power supply is kept off. After a preset time, the internal power supply is switched to the OFF position. When the start signal from the start switch is received again, the internal power supply of the PEPS controller is switched to the IGN setting, and the feedback signals of the ACC relay and the IGN relay are detected respectively. When the feedback signals of the ACC relay and the IGN relay are both invalid, a prompt message indicating that the vehicle power supply is not connected is output, and the external power supply is kept in the off state. After the preset time, the internal power supply is switched to the OFF position to prevent accidental activation of the start switch from causing PEPS to enter emergency shutdown. The ACC relay includes a first ACC relay and a second ACC relay; The feedback signals of the first ACC relay and the second ACC relay are detected respectively; When at least one of the feedback signals from the first ACC relay and the second ACC relay is a valid signal, the internal power supply of the PEPS controller is switched to ACC. When both the feedback signals from the first ACC relay and the second ACC relay are invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal and keeps the external power supply off. After the preset time, the internal power supply is switched to the OFF position.

2. The method as described in claim 1, characterized in that, When both the feedback signals from the ACC relay and the IGN relay are invalid, a message indicating that the vehicle power supply is not connected is output, and the external power supply remains off. After a preset time, the internal power supply is switched to the OFF position, including: The IGN relay includes a first IGN relay, a second IGN relay, and a third IGN relay; The feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are detected respectively; When at least one of the feedback signals from the first IGN relay, the second IGN relay, and the third IGN relay is valid, the internal power supply of the PEPS controller is switched to IGN. When all feedback signals from the first IGN relay, the second IGN relay, and the third IGN relay are invalid, and at least one of the feedback signals from the first ACC relay and the second ACC relay is valid, the internal power supply of the PEPS controller is switched to ACC. When the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal, keeps the external power supply off, and switches the internal power supply to the OFF position after the preset time.

3. The method as described in claim 1, characterized in that, After detecting the feedback signals of the first ACC relay and the second ACC relay respectively, the method further includes: When the feedback signal of the first ACC relay is invalid and the feedback signal of the second ACC relay is valid, a fault signal of the first ACC relay is generated and sent to the instrument, so that the instrument outputs the fault information of the first ACC relay according to the fault signal of the first ACC relay. When the feedback signal of the first ACC relay is a valid signal and the feedback signal of the second ACC relay is an invalid signal, a fault signal of the second ACC relay is generated and sent to the instrument, so that the instrument outputs the fault information of the second ACC relay according to the fault signal of the second ACC relay. Upon receiving a valid signal from the IGN relay, a fault signal for the IGN relay is generated and sent to the instrument, causing the instrument to output fault information of the IGN relay based on the fault signal. When both the feedback signals from the first ACC relay and the second ACC relay are invalid, a vehicle power supply failure signal is generated and sent to the instrument panel, causing the instrument panel to output a vehicle power supply failure prompt message based on the vehicle power supply failure signal.

4. The method as described in claim 2, characterized in that, After detecting the feedback signals of the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay, the method further includes: When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are inconsistent, the relay with the feedback signal is determined to be invalid, a fault signal of the relay with the feedback signal is generated, and the fault signal is output to the instrument, so that the instrument outputs fault information according to the fault signal; When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all valid signals, the feedback signals of the first ACC relay and the second ACC relay are detected. When there are invalid signals in the feedback signals of the first ACC relay and the second ACC relay, the relay with invalid feedback signals is determined, a fault signal of the relay with invalid feedback signals is generated, and the fault signal is output to the instrument, so that the instrument outputs fault information according to the fault signal. When the feedback signals of the first IGN relay, the second IGN relay, and the third IGN relay are all invalid signals and at least one of the first ACC relay and the second ACC relay is valid, a feedback signal is generated as an IGN relay fault signal, and the fault signal is output to the instrument, so that the instrument outputs fault information based on the fault signal; When the feedback signals from the first IGN relay, the second IGN relay, the third IGN relay, the first ACC relay, and the second ACC relay are all invalid, a vehicle power supply failure signal is generated and sent to the instrument panel, causing the instrument panel to output a vehicle power supply failure prompt message based on the vehicle power supply failure signal.

5. The method as described in claim 1, characterized in that, Before switching the internal power supply of the PEPS controller to the ACC position, driving the ACC relay, and detecting the feedback signal of the ACC relay upon receiving the start signal from the start switch, the process further includes: When the internal power supply of the PEPS controller is OFF, the feedback signal of the relay of the PEPS controller is detected. When a valid signal is detected, a fault signal of the relay corresponding to the valid signal is generated and sent to the instrument, so that the instrument outputs the fault information of the relay corresponding to the valid signal according to the fault signal of the relay corresponding to the valid signal.

6. The method according to any one of claims 1-5, characterized in that, When both the feedback signals from the ACC relay and the IGN relay are invalid, the system outputs a message indicating that the vehicle power supply is not connected and keeps the external power supply off. The system also includes the following steps: The start signal is detected, and when the start signal is a remote start signal, a prompt message indicating that the vehicle power is not connected is sent to the APP through the network platform.

7. A method for preventing PEPS from accidentally entering the emergency shutdown device, characterized in that, The device for preventing PEPS from accidentally entering the emergency shutdown mechanism includes: The startup module is used to switch the internal power supply of the PEPS controller to the ACC position, drive the ACC relay, and detect the feedback signal of the ACC relay when it receives the startup signal from the startup switch. The detection module is used to output a prompt message that the vehicle power supply is not connected when the feedback signal of the ACC relay is invalid, and to keep the external power supply in the off state, and switch the internal power supply to the OFF position after a preset time. The startup module is also used to switch the internal power supply of the PEPS controller to the IGN position when it receives the startup signal from the startup switch again, and to detect the feedback signals of the ACC relay and the IGN relay respectively. The detection module is also used to output a prompt message that the vehicle power supply is not connected when the feedback signals of the ACC relay and the IGN relay are both invalid signals, and to keep the external power supply in the off state. After the preset time, the internal power supply is switched to the OFF position to prevent accidental activation of the start switch from causing PEPS to enter emergency shutdown. The ACC relay includes a first ACC relay and a second ACC relay; The feedback signals of the first ACC relay and the second ACC relay are detected respectively; When at least one of the feedback signals from the first ACC relay and the second ACC relay is a valid signal, the internal power supply of the PEPS controller is switched to ACC. When both the feedback signals from the first ACC relay and the second ACC relay are invalid, a vehicle power supply failure signal is generated and sent to the instrument panel. The instrument panel then outputs a vehicle power supply failure message based on the vehicle power supply failure signal and keeps the external power supply off. After the preset time, the internal power supply is switched to the OFF position.

8. A method for preventing PEPS from accidentally entering the emergency shutdown device, characterized in that, The device includes: a memory, a processor, and a PEPS accidental entry emergency shutdown procedure stored in the memory and executable on the processor, the PEPS accidental entry emergency shutdown procedure being configured to implement the steps of the PEPS accidental entry emergency shutdown method as claimed in any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium stores a procedure for preventing PEPS from accidentally entering emergency shutdown. When the PEPS accidental entry emergency shutdown procedure is executed by the processor, it implements the steps of the method for preventing PEPS accidental entry emergency shutdown as described in any one of claims 1 to 6.

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