Commercial vehicle electronic parking driving safety control method and monitoring system

Abstract

This invention relates to a method and monitoring system for electronic parking brake driving safety control in commercial vehicles. The system includes: collecting air pressure in the brake lines via an air pressure sensor and transmitting the voltage value to a driving safety monitoring and control unit; the driving safety monitoring and control unit converting the voltage value into an air pressure value; collecting vehicle signals; determining whether the brake air pressure is abnormal under current driving conditions; and then sending an external brake air pressure abnormality warning signal to the brake release solenoid valve to control its opening and closing, thus maintaining the brake air pressure within a reasonable threshold during vehicle operation and achieving air replenishment control; identifying and reporting brake faults and sending brake fault signals to the instrument panel, which provides text alerts through a designated display interface; and continuously monitoring the brake air pressure values ​​in the brake lines of the main vehicle and trailer, driving the brake release solenoid valve to replenish air when the current brake air pressure does not meet the reasonable threshold, ensuring that the brake air pressure always meets driving requirements.

Description

Technical Field

[0001] This invention relates to the field of commercial vehicle braking control technology, and in particular to a method and monitoring system for electronic parking brake driving safety control of commercial vehicles. Background Technology

[0002] In the current commercial vehicle sector, mechanical handbrakes are the mainstay, with a small number of high-end models featuring electronic parking brakes. In these electronic parking brake systems, an electronic control system replaces the mechanical hand valve to enable and disable the vehicle's parking, but it does not detect changes in the brake line air pressure during the vehicle's real-time operation.

[0003] Therefore, existing electronic parking systems mainly rely on the driver to manually operate the electronic parking switch to park and release the vehicle. The function is relatively simple, and it is impossible to detect the real-time status of the electronic parking system. It is also impossible to diagnose faults and handle corresponding faults in the overall operation of the system, which leads to a certain risk of brake drag during vehicle operation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a method and monitoring system for electronic parking brake driving safety control in commercial vehicles.

[0005] This invention is achieved using the following technical solution:

[0006] A method for controlling the driving safety of an electronic parking brake in a commercial vehicle includes:

[0007] The air pressure in the main vehicle brake line and trailer brake line is collected by an air pressure sensor, and the air pressure is sent to the driving safety monitoring and control unit in the form of a voltage value. The driving safety monitoring and control unit receives the voltage value, converts the voltage value into an air pressure value, and interacts with the vehicle's CAN network through the CAN bus to collect vehicle signals. It determines whether the brake air pressure is abnormal under the current driving conditions, and then sends an external brake air pressure abnormality flag signal to the brake release solenoid valve. The brake release solenoid valve receives the external brake air pressure abnormality flag signal sent by the driving safety monitoring and control unit and opens or closes the valve to keep the brake air pressure within a reasonable threshold during vehicle driving, thereby realizing air replenishment control.

[0008] The vehicle safety monitoring and control unit also judges and reports braking faults, and sends braking fault signals to the instrument. The instrument receives the braking fault signals sent by the vehicle safety monitoring and control unit and provides text reminders through the provided display interface.

[0009] Preferably, the driving safety monitoring and control unit includes a signal preprocessing module. The signal preprocessing module is connected to the barometric pressure sensor via a wiring harness. The signal preprocessing module receives the voltage value collected by the barometric pressure sensor, converts the voltage value into a barometric pressure value, and simultaneously collects vehicle signals through the vehicle CAN bus. After calculating the ratio and offset, the vehicle signals are converted into real-time vehicle signals.

[0010] The vehicle signals include key ON position, vehicle speed, gear position, and brake pedal signals;

[0011] The vehicle operation status judgment module judges the real-time vehicle signals and determines whether the current vehicle status is parked or driving.

[0012] The parking state is defined as follows: when the key is in the ON position and the gear is not in neutral or the vehicle speed is greater than 0, it is determined to be in driving state.

[0013] The parking state is defined as follows: when the gear is in neutral and the vehicle speed is 0, it is determined to be in parking state.

[0014] The brake air pressure detection module detects the air pressure value converted by the signal preprocessing module in real time, and detects the change in air pressure value in the brake line during driving to determine whether there is any abnormality in the main vehicle brake line and trailer brake line.

[0015] The reasonable threshold mentioned above is the lower limit threshold of the main vehicle brake air pressure;

[0016] During driving, if the air pressure value of the main vehicle brake line is lower than the lower limit threshold of the main vehicle brake air pressure and remains so for more than 3 seconds, it is determined that there is an abnormality in the active line, and the external brake air pressure abnormality signal is valid; if the air pressure value of the main vehicle brake line is greater than the lower limit threshold of the main vehicle brake air pressure, the external brake air pressure abnormality signal is invalid.

[0017] Among them, the lower limit threshold of the main vehicle brake air pressure is a calibrated value with an initial value of 500 kPa.

[0018] Preferably, the driving safety monitoring and control unit further includes a brake air pressure control module, which receives an external brake air pressure abnormality indicator signal and converts it into an on / off power command for the brake release solenoid valve, thereby controlling the operation of the brake contact solenoid valve.

[0019] When the external brake air pressure abnormality indicator signal is valid, the brake release solenoid valve is energized and the air replenishment operation is performed during the driving process. When the air pressure value of the main vehicle brake line is greater than the upper limit threshold of the main vehicle driving brake air pressure and is maintained for more than 3 seconds, it is determined that the driving air replenishment is completed, the brake release solenoid valve is de-energized, and the brake air pressure replenishment operation during the driving process is completed.

[0020] The drive diagnostic module is activated when the brake air pressure control module switches the on / off command of the brake release solenoid valve. It then monitors in real time whether the working current value of the brake release solenoid valve is within a reasonable range.

[0021] If the operating current value of the brake release solenoid valve after being energized is close to or equal to 0, it is determined that the brake release solenoid valve has an open circuit fault.

[0022] If the operating current value of the brake release solenoid valve after being energized is greater than the rated operating current value, it is determined that the brake release solenoid valve has a load short circuit fault.

[0023] When the brake release solenoid valve experiences an open circuit fault or a short circuit fault, the brake air pressure control module sends a power-off command to the brake release solenoid valve.

[0024] Preferably, the driving safety monitoring and control unit further includes a brake fault judgment module, which is used for brake dragging fault detection and fault reporting;

[0025] When the brake release solenoid valve is energized and performs air replenishment, if the actual air pressure in the main vehicle brake line cannot reach the lower limit threshold of the main vehicle brake air pressure, it is determined that the air replenishment has failed and there is a fault in the main vehicle brake line. At this time, the brake dragging fault detection is activated to judge the brake dragging status and report the fault, and send the brake dragging fault signal to the instrument to provide a fault text prompt.

[0026] Preferably, the brake dragging fault detection is as follows:

[0027] During driving, if the air pressure in the main vehicle brake line is lower than the lower limit threshold for the main vehicle brake pressure and remains so for more than 30 seconds, it is determined that the driving air replenishment has failed and there is a fault in the main vehicle brake line. The external main vehicle parking brake dragging alarm signal is valid. If the air pressure in the main vehicle brake line is higher than the lower limit threshold for the main vehicle brake pressure, or if the vehicle is in a parked state, the external main vehicle parking brake dragging alarm signal is invalid.

[0028] Meanwhile, during driving, if the brake pedal is not activated without a signal, and the air pressure value of the trailer brake line is greater than the trailer brake air pressure threshold and remains there for more than 30 seconds, it is determined that the driving air replenishment has failed, the trailer brake line has a fault, and the external trailer parking brake dragging alarm signal is valid.

[0029] If the air pressure in the trailer brake line is less than the trailer brake air pressure threshold, or if the brake pedal is activated during driving, or if the vehicle is in a parked state, the external trailer parking brake dragging alarm signal will be invalid.

[0030] The trailer brake air pressure threshold is a calibrated value, with an initial value of 20 kPa.

[0031] Preferably, when the instrument receives a valid alarm signal from the vehicle safety monitoring and control unit for the main vehicle parking brake dragging, a pop-up window will appear on the instrument display screen to display the text message "There is an abnormality in the main vehicle brake line. Please stop and check as soon as possible." When the instrument receives a valid alarm signal from the vehicle safety monitoring and control unit for the trailer parking brake dragging, a pop-up window will appear on the instrument display screen to display the text message "There is an abnormality in the trailer brake line. Please stop and check as soon as possible."

[0032] The instrument displays a text alert every 10 seconds, and each alert lasts for 30 seconds. If the external parking brake dragging alarm signal of the main vehicle or the external parking brake dragging alarm signal of the trailer is invalid, the instrument will no longer display a text alert.

[0033] A commercial vehicle electronic parking driving safety monitoring system is used to implement the commercial vehicle electronic parking driving safety control method as described above, including a battery, wherein the battery is connected to the driving safety monitoring control unit via a wiring harness;

[0034] The air pressure sensors are installed in the main vehicle brake line and the trailer brake line, respectively, and are connected to the driving safety monitoring and control unit through wiring harnesses.

[0035] The vehicle safety monitoring and control unit is connected to the instrument cluster via a CAN bus;

[0036] The brake release solenoid valve is connected to the vehicle safety monitoring and control unit via a wiring harness.

[0037] Preferably, the air pressure sensor includes a main vehicle brake line air pressure sensor and a trailer brake line air pressure sensor, wherein the main vehicle brake line air pressure sensor is disposed in the main vehicle brake line and the trailer brake line air pressure sensor is disposed in the trailer brake line.

[0038] Compared with the prior art, the present invention has the following beneficial technical effects:

[0039] The system monitors the brake air pressure in the brake lines of the main vehicle and trailer in real time. When the current brake air pressure does not meet the reasonable threshold, it activates the brake release solenoid valve to replenish the air pressure, ensuring that the brake air pressure always meets the driving requirements. If the replenishment fails, the alarm information of the brake line of the main vehicle or trailer is uploaded to the instrument panel for text alert. By monitoring the brake air pressure and controlling the brake release solenoid valve, the system ensures the safe operation of the vehicle under operating conditions and avoids the safety malfunction of brake dragging. In the event of a major brake air pressure failure, the system promptly alerts the driver so that they can stop and check the vehicle as soon as possible to avoid a more serious safety accident. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the system framework of the present invention;

[0041] Figure 2 This is a framework diagram of the vehicle safety monitoring and control unit in this invention;

[0042] Figure 3 This is a flowchart illustrating the operation of the brake air pressure detection module in this invention.

[0043] Figure 4 This is a flowchart of the main vehicle parking brake drag brake fault detection process in this invention;

[0044] Figure 5 This is a flowchart of the trailer parking brake drag brake fault detection process in this invention. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0046] like Figures 1-2 As shown, a method for controlling the electronic parking brake driving safety of a commercial vehicle includes:

[0047] The air pressure in the main vehicle brake line and trailer brake line is collected by an air pressure sensor, and the air pressure is sent to the driving safety monitoring and control unit in the form of a voltage value. The driving safety monitoring and control unit receives the voltage value, converts the voltage value into an air pressure value, and interacts with the vehicle's CAN network through the CAN bus to collect vehicle signals. It determines whether the brake air pressure is abnormal under the current driving conditions, and then sends an external brake air pressure abnormality flag signal to the brake release solenoid valve. The brake release solenoid valve receives the external brake air pressure abnormality flag signal sent by the driving safety monitoring and control unit and opens or closes the valve to keep the brake air pressure within a reasonable threshold during vehicle driving, thereby realizing air replenishment control.

[0048] The vehicle safety monitoring and control unit also judges and reports braking faults, and sends braking fault signals to the instrument. The instrument receives the braking fault signals sent by the vehicle safety monitoring and control unit and provides text reminders through the provided display interface.

[0049] The driving safety monitoring and control unit includes a signal preprocessing module. The signal preprocessing module is connected to the air pressure sensor through a wiring harness. The signal preprocessing module receives the voltage value collected by the air pressure sensor, converts the voltage value into an air pressure value, and at the same time collects the vehicle signal through the vehicle CAN bus. After calculating the ratio and offset, the vehicle signal is converted into a real-time vehicle signal.

[0050] The vehicle signals include key ON position, vehicle speed, gear position, and brake pedal signals;

[0051] The vehicle operation status judgment module judges the real-time vehicle signals and determines whether the current vehicle status is parked or driving.

[0052] The parking status is determined as follows: when the key is in the ON position and the gear is not in neutral or the vehicle speed is greater than 0, it is considered to be in driving status;

[0053] The parking state is defined as follows: when the gear is in neutral and the vehicle speed is 0, the vehicle is considered to be in parking state.

[0054] The brake air pressure detection module detects the air pressure value converted by the signal preprocessing module in real time, and detects the change in air pressure value in the brake line during driving to determine whether there is any abnormality in the main vehicle brake line and trailer brake line.

[0055] Among them, the reasonable threshold is the lower limit threshold of the main vehicle brake air pressure;

[0056] During driving, if the air pressure value of the main vehicle brake line is lower than the lower limit threshold of the main vehicle brake air pressure and remains so for more than 3 seconds, it is determined that there is an abnormality in the active line, and the external brake air pressure abnormality signal is valid; if the air pressure value of the main vehicle brake line is greater than the lower limit threshold of the main vehicle brake air pressure, the external brake air pressure abnormality signal is invalid.

[0057] Among them, the lower limit threshold of the main vehicle brake air pressure is a calibrated value with an initial value of 500 kPa.

[0058] The vehicle safety monitoring and control unit also includes a brake air pressure control module. The brake air pressure control module receives external brake air pressure abnormality warning signals and converts them into power on / off commands for the brake release solenoid valve, controlling the operation of the brake contact solenoid valve.

[0059] When the external brake air pressure abnormality indicator signal is valid, the brake release solenoid valve is energized and the air replenishment operation is performed during the driving process. When the air pressure value of the main vehicle brake line is greater than the upper limit threshold of the main vehicle driving brake air pressure and is maintained for more than 3 seconds, it is determined that the driving air replenishment is completed, the brake release solenoid valve is de-energized, and the brake air pressure replenishment operation during the driving process is completed.

[0060] The drive diagnostic module is activated when the brake air pressure control module switches the on / off command of the brake release solenoid valve. It then monitors in real time whether the working current value of the brake release solenoid valve is within a reasonable range.

[0061] If the operating current value of the brake release solenoid valve after being energized is close to or equal to 0, it is determined that the brake release solenoid valve has an open circuit fault.

[0062] If the operating current value of the brake release solenoid valve after being energized is greater than the rated operating current value, it is determined that the brake release solenoid valve has a load short circuit fault.

[0063] When the brake release solenoid valve experiences an open circuit fault or a short circuit fault, the brake air pressure control module sends a power-off command to the brake release solenoid valve.

[0064] The vehicle safety monitoring and control unit also includes a brake fault judgment module, which is used to detect and report brake dragging faults.

[0065] When the brake release solenoid valve is energized and performs air replenishment, if the actual air pressure in the main vehicle brake line cannot reach the lower limit threshold of the main vehicle brake air pressure, it is determined that the air replenishment has failed and there is a fault in the main vehicle brake line. At this time, the brake dragging fault detection is activated to judge the brake dragging status and report the fault, and send the brake dragging fault signal to the instrument to provide a fault text prompt.

[0066] Brake dragging fault detection is as follows:

[0067] During driving, if the air pressure in the main vehicle brake line is lower than the lower limit threshold for the main vehicle brake pressure and remains so for more than 30 seconds, it is determined that the driving air replenishment has failed and there is a fault in the main vehicle brake line. The external main vehicle parking brake dragging alarm signal is valid. If the air pressure in the main vehicle brake line is higher than the lower limit threshold for the main vehicle brake pressure, or if the vehicle is in a parked state, the external main vehicle parking brake dragging alarm signal is invalid.

[0068] Meanwhile, during driving, if the brake pedal is not activated without a signal, and the air pressure value of the trailer brake line is greater than the trailer brake air pressure threshold and remains there for more than 30 seconds, it is determined that the driving air replenishment has failed, the trailer brake line has a fault, and the external trailer parking brake dragging alarm signal is valid.

[0069] If the air pressure in the trailer brake line is less than the trailer brake air pressure threshold, or if the brake pedal is activated during driving, or if the vehicle is in a parked state, the external trailer parking brake dragging alarm signal will be invalid.

[0070] The trailer brake air pressure threshold is a calibrated value, with an initial value of 20 kPa.

[0071] When the instrument panel receives a valid alarm signal from the vehicle safety monitoring and control unit for the main vehicle parking brake dragging, a pop-up window will automatically appear on the instrument panel display interface, displaying the text reminder: "There is an abnormality in the main vehicle brake line. Please stop and check as soon as possible." When the instrument panel receives a valid alarm signal from the vehicle safety monitoring and control unit for the trailer parking brake dragging, a pop-up window will automatically appear on the instrument panel display interface, displaying the text reminder: "There is an abnormality in the trailer brake line. Please stop and check as soon as possible."

[0072] The instrument panel displays a text alert every 10 seconds, and each alert lasts for 30 seconds. If the external parking brake dragging alarm signal of the main vehicle or the external parking brake dragging alarm signal of the trailer is invalid, the instrument panel will no longer display a text alert.

[0073] Example 2

[0074] A commercial vehicle electronic parking safety monitoring system for implementing any of the above-mentioned commercial vehicle electronic parking safety control methods includes a battery, which is connected to the driving safety monitoring control unit via a wiring harness.

[0075] The air pressure sensors are installed in the main vehicle brake line and the trailer brake line, respectively, and are connected to the driving safety monitoring and control unit through wiring harnesses.

[0076] The vehicle safety monitoring and control unit is connected to the instrument cluster via a CAN bus;

[0077] The brake release solenoid valve is connected to the vehicle safety monitoring and control unit via a wiring harness.

[0078] The air pressure sensors include a main vehicle brake line air pressure sensor and a trailer brake line air pressure sensor. The main vehicle brake line air pressure sensor is located in the main vehicle brake line, and the trailer brake line air pressure sensor is located in the trailer brake line.

Claims

1. A method for controlling the driving safety of an electronic parking brake in a commercial vehicle, characterized in that, include: The air pressure in the main vehicle's brake lines and trailer's brake lines is collected by air pressure sensors, and the air pressure is sent to the driving safety monitoring and control unit in the form of voltage values. The driving safety monitoring and control unit receives the voltage values, converts the voltage values ​​into air pressure values, and interacts with the vehicle's CAN network through the CAN bus to collect vehicle signals, determine whether the brake air pressure is abnormal under the current driving conditions, and then send an external brake air pressure abnormality flag signal to the brake release solenoid valve. The brake release solenoid valve receives the external brake air pressure abnormality flag signal sent by the driving safety monitoring and control unit and opens or closes the valve to keep the brake air pressure within a reasonable threshold during vehicle driving, thereby achieving air replenishment control. The vehicle safety monitoring and control unit also judges and reports braking faults, and sends braking fault signals to the instrument. The instrument receives the braking fault signals sent by the vehicle safety monitoring and control unit and provides text reminders through the provided display interface. The driving safety monitoring and control unit also includes a brake fault judgment module, which is used to detect and report brake dragging faults. When the brake release solenoid valve is energized and performs air replenishment, if the actual air pressure in the main vehicle brake line cannot reach the lower limit threshold of the main vehicle brake air pressure, it is determined that the air replenishment has failed and there is a fault in the main vehicle brake line. At this time, the brake dragging fault detection is activated to judge the brake dragging status and report the fault, and send the brake dragging fault signal to the instrument to provide a fault text prompt. The brake dragging fault detection is as follows: During driving, if the air pressure in the main vehicle brake line is lower than the lower limit threshold for the main vehicle brake pressure and remains so for more than 30 seconds, it is determined that the driving air replenishment has failed and there is a fault in the main vehicle brake line. The external main vehicle parking brake dragging alarm signal is valid. If the air pressure in the main vehicle brake line is higher than the lower limit threshold for the main vehicle brake pressure, or if the vehicle is in a parked state, the external main vehicle parking brake dragging alarm signal is invalid. Meanwhile, during driving, if the brake pedal is not activated without a signal, and the air pressure value of the trailer brake line is greater than the trailer brake air pressure threshold and remains there for more than 30 seconds, it is determined that the driving air replenishment has failed, the trailer brake line has a fault, and the external trailer parking brake dragging alarm signal is valid. If the air pressure in the trailer brake line is less than the trailer brake air pressure threshold, or if the brake pedal is activated during driving, or if the vehicle is in a parked state, the external trailer parking brake dragging alarm signal will be invalid. The trailer brake air pressure threshold is a calibrated value, with an initial value of 20 kPa.

2. The commercial vehicle electronic parking brake driving safety control method according to claim 1, characterized in that, The driving safety monitoring and control unit includes a signal preprocessing module. The signal preprocessing module is connected to the air pressure sensor through a wiring harness. The signal preprocessing module receives the voltage value collected by the air pressure sensor, converts the voltage value into an air pressure value, and simultaneously collects vehicle signals through the vehicle CAN bus. After calculating the ratio and offset, the vehicle signals are converted into real-time vehicle signals. The vehicle signals include key ON position, vehicle speed, gear position, and brake pedal signals; The vehicle operation status judgment module judges the real-time vehicle signals and determines whether the current vehicle status is parked or driving. The driving state is defined as follows: when the key is in the ON position and the gear is not in neutral or the vehicle speed is greater than 0, it is determined to be in driving state. The parking state is defined as follows: when the gear is in neutral and the vehicle speed is 0, it is determined to be in parking state. The brake air pressure detection module detects the air pressure value converted by the signal preprocessing module in real time, and detects the change in air pressure value in the brake line during driving to determine whether there is any abnormality in the main vehicle brake line and trailer brake line. The reasonable threshold mentioned above is the lower limit threshold of the main vehicle brake air pressure; During driving, if the air pressure value of the main vehicle brake line is lower than the lower limit threshold of the main vehicle brake air pressure and remains so for more than 3 seconds, it is determined that there is an abnormality in the active line, and the external brake air pressure abnormality signal is valid; if the air pressure value of the main vehicle brake line is greater than the lower limit threshold of the main vehicle brake air pressure, the external brake air pressure abnormality signal is invalid. Among them, the lower limit threshold of the main vehicle brake air pressure is a calibrated value with an initial value of 500 kPa.

3. The commercial vehicle electronic parking brake driving safety control method according to claim 1, characterized in that, The driving safety monitoring and control unit also includes a brake air pressure control module. The brake air pressure control module receives an external brake air pressure abnormality indicator signal and converts it into an on / off power command for the brake release solenoid valve, thereby controlling the operation of the brake contact solenoid valve. When the external brake air pressure abnormality indicator signal is valid, the brake release solenoid valve is energized and the air replenishment operation is performed during the driving process. When the air pressure value of the main vehicle brake line is greater than the upper limit threshold of the main vehicle driving brake air pressure and is maintained for more than 3 seconds, it is determined that the driving air replenishment is completed, the brake release solenoid valve is de-energized, and the brake air pressure replenishment operation during the driving process is completed. The drive diagnostic module is activated when the brake air pressure control module switches the on / off command of the brake release solenoid valve. It then monitors in real time whether the working current value of the brake release solenoid valve is within a reasonable range. If the operating current value of the brake release solenoid valve after being energized is close to or equal to 0, it is determined that the brake release solenoid valve has an open circuit fault. If the operating current value of the brake release solenoid valve after being energized is greater than the rated operating current value, it is determined that the brake release solenoid valve has a load short circuit fault. When the brake release solenoid valve experiences an open circuit fault or a short circuit fault, the brake air pressure control module sends a power-off command to the brake release solenoid valve.

4. The commercial vehicle electronic parking brake driving safety control method according to claim 1, characterized in that, When the instrument panel receives a valid alarm signal from the vehicle safety monitoring and control unit for the main vehicle parking brake dragging, a pop-up window will automatically appear on the instrument panel display interface, displaying the text "There is an abnormality in the main vehicle brake line. Please stop and check as soon as possible." When the instrument receives a valid external trailer parking brake dragging alarm signal from the vehicle safety monitoring and control unit, a pop-up window will automatically appear on the instrument display interface to remind users that "there is an abnormality in the trailer brake line. Please stop and check as soon as possible." The instrument displays a text alert every 10 seconds, and each alert lasts for 30 seconds. If the external parking brake dragging alarm signal of the main vehicle or the external parking brake dragging alarm signal of the trailer is invalid, the instrument will no longer display a text alert.

5. A commercial vehicle electronic parking brake driving safety monitoring system, used to implement the commercial vehicle electronic parking brake driving safety control method according to any one of claims 1-4, characterized in that, Includes a storage battery, which is connected to the vehicle safety monitoring and control unit via a wiring harness; The air pressure sensors are installed in the main vehicle brake line and the trailer brake line, respectively, and are connected to the driving safety monitoring and control unit through wiring harnesses. The vehicle safety monitoring and control unit is connected to the instrument cluster via a CAN bus; The brake release solenoid valve is connected to the vehicle safety monitoring and control unit via a wiring harness.

6. The commercial vehicle electronic parking and driving safety monitoring system according to claim 5, characterized in that, The air pressure sensor includes a main vehicle brake line air pressure sensor and a trailer brake line air pressure sensor. The main vehicle brake line air pressure sensor is located in the main vehicle brake line, and the trailer brake line air pressure sensor is located in the trailer brake line.

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