Vehicle parking control method and device

Abstract

The invention discloses a vehicle parking control method and device, relates to the technical field of vehicle control, and simultaneously drives a front wheel brake unit, an EPB actuator and a gearbox control unit when determining that the current state of a vehicle meets a preset state condition based on the current state information of the vehicle acquired in real time, and drives the front wheel brake unit to control the vehicle to park. A liquid inlet valve and a liquid return valve of the front wheel braking unit are kept at preset positions, and a hydraulic pump is started according to preset frequency; an EPB actuator is driven, so that the EPB actuator drives a motor to conduct parking braking on rear wheels of the vehicle; and the gearbox control unit is driven to control a P-gear locking mechanism in the gearbox to be in an engaged state. Therefore, the braking force is obviously improved; and on the premise that the hardware cost is not increased, through software logic optimization, the parking capacity of the vehicle under the large-ramp working condition is enhanced, and the vehicle is effectively prevented from sliding on the slope.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a vehicle parking control method and device. Background Technology

[0002] In related technologies, when a vehicle is engaged in P gear, the ESP (Electronic Stability Program) immediately stops working, the brake cylinder pressure disappears, and the vehicle is braked solely by the transmission mechanical lock-up mechanism and EPB (Electronic Parking Brake). However, the strength design of the transmission mechanical lock-up mechanism and EPB cannot meet the load-bearing requirements of parking on steep inclines. After engaging P gear, the ESP system disengages, the front wheel braking pressure is released, and braking force is provided only by the rear wheel EPB, which can easily cause the vehicle to roll away. Furthermore, the lack of a multi-system coordinated control mechanism makes it impossible to effectively utilize the four-wheel brakes to enhance the overall braking force. Summary of the Invention

[0003] In view of this, this application provides a vehicle parking control method and device to solve the problem in the prior art where insufficient braking force causes the vehicle to easily roll back when parking on a steep slope.

[0004] The objective of this application can be achieved through the following technical solutions: The first aspect of this application is to provide a vehicle parking control method, including: Real-time acquisition of vehicle status information; When the current vehicle status is determined to meet the preset status conditions based on the vehicle's current status information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven. Specifically, the front wheel braking unit is driven to keep the inlet and return valves of the front wheel braking unit in preset positions and start the hydraulic pump at a preset frequency; the EPB actuator is driven to enable the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle; and the transmission control unit is driven to control the P gear lock mechanism inside the transmission to be engaged.

[0005] In one optional embodiment, the vehicle current status information includes at least the vehicle's current wheel speed, master cylinder current pressure, brake pad current thickness, the slope of the current ramp, information indicating whether the vehicle is currently in an active state, the vehicle's current battery voltage, the current gear, and the current EPB switch status.

[0006] In one optional embodiment, after obtaining the vehicle's current status information, the method further includes: Determine whether the current wheel speed of the vehicle is 0 within a preset time period; Determine if the current pressure in the master cylinder is greater than the preset pressure threshold; Determine if the current thickness of the brake pads is greater than the preset thickness; Determine whether the slope of the current incline of the vehicle is greater than the preset slope threshold; Determine if the vehicle is currently running. Determine whether the current voltage of the vehicle battery is greater than a preset voltage threshold. Determine if the current gear is P (Park). When it is determined that the vehicle's current state meets preset conditions based on the vehicle's current state information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously activated, including: When it is determined that the vehicle's current wheel speed is 0 within a preset time period, the current master cylinder pressure is greater than a preset pressure threshold, the current brake pad thickness is greater than a preset thickness threshold, the slope of the current slope of the vehicle is greater than a preset slope threshold, the vehicle is currently in an active state, the current battery voltage is greater than a preset voltage threshold, and the current gear is P, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven.

[0007] In an optional embodiment, after determining whether the current thickness of the brake pad is greater than a preset thickness threshold, the method further includes: When the current thickness of the brake pads is determined to be no greater than the preset thickness threshold, the brake pad wear warning light will be illuminated on the dashboard.

[0008] In an optional embodiment, after determining whether the slope of the current ramp where the vehicle is located is greater than a preset ramp slope threshold, the method further includes: When it is determined that the slope of the current slope of the vehicle is not greater than the preset slope threshold, only the EPB actuator and the transmission control unit are driven.

[0009] In an optional embodiment, after determining that the vehicle's current state meets preset state conditions based on the vehicle's current state information, and simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit, the method further includes: Display icon-based alerts; and / or, display text alerts; and / or, display voice alerts.

[0010] In one alternative embodiment, driving the EPB actuator to cause the EPB actuator to drive the motor to apply parking brake to the rear wheels of the vehicle includes: Drive the EPB actuator so that the EPB actuator drive motor applies parking brake to the rear wheels of the vehicle via a cable or caliper motor.

[0011] A second aspect of this application is to provide a vehicle parking control device, comprising: The acquisition module is used to acquire the vehicle's current status information in real time; The drive module is used to simultaneously drive the front wheel braking unit, the EPB actuator, and the transmission control unit when the current state of the vehicle is determined to meet the preset state conditions based on the vehicle's current state information. Specifically, it drives the front wheel braking unit to keep the inlet and return valves of the front wheel braking unit in preset positions and starts the hydraulic pump at a preset frequency; it drives the EPB actuator to enable the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle; and it drives the transmission control unit to control the P gear lock mechanism inside the transmission to be engaged.

[0012] A third aspect of this application is to provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the method as described in the first aspect.

[0013] A fourth aspect of this application is to provide a computer-readable storage medium storing a computer program, which, when executed by a processor, performs the method as described in the first aspect.

[0014] Compared with existing technologies, the vehicle parking control method provided in this application, when determining that the vehicle's current state meets preset conditions based on real-time acquired vehicle current state information, simultaneously drives the front wheel braking unit, EPB actuator, and transmission control unit. The front wheel braking unit is driven to keep its inlet and return valves in preset positions and activates the hydraulic pump at a preset frequency. The EPB actuator is driven to activate its drive motor to apply parking brakes to the rear wheels. The transmission control unit is driven to engage the P-gear locking mechanism within the transmission. This significantly improves braking force; and without increasing hardware costs, software logic optimization enhances the vehicle's parking ability on steep inclines, effectively preventing vehicle rollback. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic flowchart of a vehicle parking control method provided in an embodiment of this application; Figure 2 A structural block diagram of a vehicle parking control device provided in an embodiment of this application; Figure 3 This is a structural block diagram of an electronic device for implementing a vehicle parking control method, provided in an embodiment of this application. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0018] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0019] It should be understood that in the embodiments of this application, "at least one" means one or more, and "more than one" means two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the related objects before and after it are in an "or" relationship. "Contains A, B and / or C" means containing any one, two, or three of A, B, and C.

[0020] It should be understood that in the embodiments of this application, "B corresponding to A", "B corresponding to A", "A corresponds to B" or "B corresponds to A" means that B is associated with A, and B can be determined based on A. Determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0021] To address the technical problems existing in related technologies, this application provides a vehicle parking control method and device.

[0022] The vehicle parking control method provided in this application can be executed by an electronic device, which can be a terminal or a server. The terminal can be a smartphone, tablet, laptop, or other similar device. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms. It is understood that this application does not limit the specific entity executing the vehicle parking control method.

[0023] The technical solution of this application will be described in detail below through specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments described below are used to explain the technical solution of this application and are not intended to limit actual use.

[0024] To address the technical problems existing in related technologies, embodiments of this application provide a vehicle parking control method, such as... Figure 1 As shown, Figure 1 This is a flowchart illustrating a vehicle parking control method provided in an embodiment of this application. It should be noted that the steps shown may be executed in a logical order different from that shown in the flowchart. The method may include the following steps S101 to S102.

[0025] Step S101: Obtain the current status information of the vehicle in real time.

[0026] In one optional embodiment, the vehicle current status information includes at least the vehicle's current wheel speed, master cylinder current pressure, brake pad current thickness, the slope of the current ramp, information indicating whether the vehicle is currently in an active state, the vehicle's current battery voltage, the current gear, and the current EPB switch status.

[0027] In one specific embodiment, wheel speed sensors are installed near the four wheels of the vehicle to obtain the wheel speed. It should be noted that when the wheel speed is 0, it indicates that the wheel is stationary.

[0028] It should be noted that the current master cylinder pressure is used to determine whether the driver is currently braking, and the EPB switch status is used to determine whether the driver is currently activating the EPB.

[0029] In one specific embodiment, a slope sensor is installed in a location such as the center console of the vehicle or below the dashboard crossbeam to detect the current slope of the incline. It should be noted that the slope sensor's range must cover at least ±100% of the slope, and the slope value signal is transmitted to the ESP control unit via the CAN bus.

[0030] In one specific embodiment, a brake pad wear sensor is installed in or near the brake pads of the brake caliper to detect the remaining thickness of the brake pads.

[0031] In one specific embodiment, a gear position sensor is installed in the transmission or shifting mechanism to detect the current gear. It should be noted that the gear positions include P, R, N, and D.

[0032] In one specific embodiment, the power management system monitors the voltage and charge status of the vehicle's battery to determine whether the current power supply is sufficient to support the operation of high-power actuators such as the ESP pump.

[0033] In one specific embodiment, the sensor can transmit the acquired information to the ESP control unit via a hardwire or CAN (Controller Area Network) bus.

[0034] It should be noted that the ESP control unit exchanges high-speed data with other electronic control units on the vehicle (such as the engine, transmission, electronic parking brake controller, body domain controller, etc.) via the CAN bus to achieve information sharing and collaborative control.

[0035] Step S102: When it is determined that the current state of the vehicle meets the preset state conditions based on the current state information of the vehicle, the front wheel braking unit, EPB actuator and transmission control unit are driven simultaneously.

[0036] It should be noted that the front wheel braking unit is driven to keep the inlet and return valves of the front wheel braking unit in preset positions and start the hydraulic pump at a preset frequency; the EPB actuator is driven to make the EPB actuator drive motor apply parking brake to the rear wheels of the vehicle; and the transmission control unit is driven to control the P gear lock mechanism inside the transmission to be engaged.

[0037] It should be noted that the ESP control unit sends specific control commands to the front wheel braking unit, driving the inlet and return valves inside the front wheel control unit to remain in the appropriate positions, and may intermittently activate the hydraulic pump to maintain a preset brake cylinder pressure. This pressure value is adjusted in a closed loop based on feedback from the gradient sensor: the greater the gradient, the greater the maintained pressure, to ensure sufficient braking torque to counteract the vehicle's downward force. This pressure is typically maintained above the minimum value that ensures the vehicle remains stationary and does not roll back, in order to reduce energy consumption and system load.

[0038] It should be noted that the front wheel braking unit typically refers to the front wheel brake calipers and discs controlled by the ESP hydraulic unit. The ESP control unit establishes and maintains pressure in the brake cylinders by driving its internal solenoid valves and hydraulic pump, thereby achieving braking of the front wheels.

[0039] The inlet valve connects the master cylinder (the pedal the driver presses) and the wheel brake calipers. When open: Allows brake fluid to flow from the master cylinder to the wheels, increasing pressure (increasing braking force). When closed: Cuts off the connection between the master cylinder and the wheels, preventing further pressure increases or decreases, preparing for pressure maintenance.

[0040] Return valve (normally closed valve): Connects the wheel brake caliper to the low-pressure accumulator (or return line). When closed: Brake fluid cannot flow out, maintaining pressure in conjunction with the closed inlet valve. When open: Allows brake fluid to flow back from the wheel to the accumulator, reducing pressure (decreasing braking force and preventing wheel lock-up).

[0041] Intermittent starting of the hydraulic pump is designed to address the issue of brake fluid flowing from the wheel cylinders to the low-pressure accumulator when the return valve opens for "pressure reduction." If this fluid isn't pumped out, the accumulator will quickly fill, preventing further pressure reduction and causing an abnormal feeling in the master cylinder pedal (pedal sinking). The hydraulic pump's role is to pump the brake fluid from the accumulator back to the master cylinder or high-pressure side, ensuring continuous pressure reduction. During prolonged "pressure holding" operations, pressure may slowly decrease due to minor leaks or temperature changes in the hydraulic system. Intermittent starting of the hydraulic pump compensates for this loss, maintaining the set target pressure and ensuring continuous control. Intermittent starting keeps the system in a "standby" high-pressure state. When an emergency pressurization is needed, the system can respond in milliseconds without waiting for the pressure build-up process.

[0042] In one specific embodiment, driving the EPB actuator to cause the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle specifically includes the following steps: driving the EPB actuator to cause the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle via a cable or caliper motor.

[0043] In a more specific embodiment, the ESP control unit sends execution commands to the EPB actuator via the CAN bus. The EPB actuator drives the motor to pull the rear wheel brake cables or tighten the integrated calipers, applying the parking brake to both rear wheels.

[0044] In one specific embodiment, driving the transmission control unit to control the P-gear locking mechanism inside the transmission to be engaged includes: When the vehicle is engaged in Park (P) gear, the mechanical locking mechanism extends a pawl that engages with the gear on the transmission output shaft to mechanically lock the vehicle and prevent it from moving.

[0045] By forming a triple safety system of "ESP hydraulic braking + EPB braking + transmission mechanical lock", simultaneous braking of all four wheels is achieved, greatly improving parking braking force and reliability.

[0046] In one optional embodiment, after obtaining the vehicle's current status information, the method further includes: Determine if the vehicle's current wheel speed is 0 within a preset time period; determine if the current master cylinder pressure is greater than a preset pressure threshold; determine if the current brake pad thickness is greater than a preset thickness threshold; determine if the slope of the current incline is greater than a preset slope threshold; determine if the vehicle is currently in an active state; determine if the current battery voltage is greater than a preset voltage threshold; determine if the current gear is P (Park). Accordingly, when it is determined that the current state of the vehicle meets the preset state conditions based on the current state information of the vehicle, the front wheel braking unit, EPB actuator and transmission control unit are driven simultaneously, including: when it is determined that the current wheel speed of the vehicle is 0 within a preset time period, the current pressure of the master cylinder is greater than a preset pressure threshold, the current thickness of the brake pads is greater than a preset thickness threshold, the slope of the slope where the vehicle is currently located is greater than a preset slope threshold, the vehicle is currently in an active state, the current voltage of the vehicle battery is greater than a preset voltage threshold, and the current gear is P, the front wheel braking unit, EPB actuator and transmission control unit are driven simultaneously.

[0047] In one specific embodiment, the ESP control unit detects whether the wheel speeds of all four wheels are 0 within a preset time period to eliminate signal jitter.

[0048] In one specific embodiment, when the current pressure of the master cylinder is greater than a preset pressure threshold, it is confirmed that the vehicle has stopped due to braking operation.

[0049] It should be noted that if the above two conditions are not met simultaneously, the current status information of the vehicle will continue to be obtained.

[0050] In one specific embodiment, if the brake pad thickness is greater than a preset thickness threshold, the braking system is determined to be in good condition. If the brake pad thickness is not greater than the preset thickness threshold, the braking system is determined to have insufficient braking performance, and the brake pad wear warning light on the dashboard is illuminated to prompt the driver to repair the brake pads.

[0051] In a more specific embodiment, the preset thickness threshold is 2mm, 3mm, and 5mm, etc. The preset thickness threshold can be set according to actual needs, and this application does not limit it.

[0052] In one specific embodiment, the ESP control unit determines whether the current slope of the vehicle is greater than a preset slope threshold. If the current slope of the vehicle is greater than the preset slope threshold, it is considered to be an extreme slope condition. If the current slope of the vehicle is not greater than the preset slope threshold, only the EPB actuator and the transmission control unit are driven to brake the vehicle.

[0053] In a more specific embodiment, the preset ramp slope threshold can be 50%, 55%, or 65%, etc. The preset ramp slope threshold can be set according to actual needs, and this application does not limit it.

[0054] It's important to note that ensuring the vehicle is currently running and that the battery voltage is above the preset threshold is crucial because maintaining ESP hydraulic pressure requires significant electrical energy. If the vehicle is off or the battery is low, forcibly maintaining pressure could deplete the battery, preventing restarting. The ESP control unit checks the gear position signal. Only when the driver shifts the gear lever into Park (P) is it considered that the driver has a clear, long-term intention to park. Shifting into Park triggers the transmission lock-up mechanism, providing basic mechanical parking capability.

[0055] In one specific embodiment, the preset voltage threshold can be 11.5V, 12V or 13V, etc. The preset voltage threshold can be set according to actual needs, and this application does not limit it.

[0056] In one specific embodiment, driving the front wheel braking unit, EPB actuator, and transmission control unit includes: the ESP control unit sending a "high-slope parking mode activated" signal to the front wheel braking unit, EPB actuator, and transmission control unit via the CAN bus, causing the front wheel braking unit, EPB actuator, and transmission control unit to execute corresponding control commands.

[0057] In another optional embodiment, after determining that the vehicle's current state meets preset state conditions based on the vehicle's current state signal, and simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit, the method further includes: Display icon-based alerts; and / or, display text alerts; and / or, display voice alerts.

[0058] In one specific embodiment, while the vehicle's dashboard keeps the traditional P gear indicator and EPB indicator illuminated, an additional "High Hill Start Parking" icon is lit, or the four-wheel parking lock icon is displayed in a highlighted / flashing manner. The vehicle's large screen displays a prominent, scrolling text warning message: "Warning: Vehicle parked on an extreme slope. High Hill Start Parking is a temporary function; it is recommended that you take over as soon as possible and place obstacles under the wheels." Simultaneously, the vehicle's audio system broadcasts a voice warning consistent with the screen display, alerting the driver whose attention may be distracted. This provides multiple warnings.

[0059] It should be noted that the vehicle parking control method provided in this application executes cyclically at a preset period after the vehicle is powered on. The preset period can be set according to actual needs, and this application does not limit it. For example, the preset period can be set to 10-50ms.

[0060] In this embodiment, the vehicle's current status information is acquired in real time. When the vehicle's current status is determined to meet preset conditions based on the current status information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously activated. Specifically, the front wheel braking unit is activated to keep its inlet and return valves in preset positions and to start the hydraulic pump at a preset frequency. The EPB actuator is activated to drive the motor to apply parking brakes to the rear wheels. The transmission control unit is activated to engage the P-gear locking mechanism inside the transmission. Through the coordinated operation of the ESP, EPB, and transmission locking mechanism, four-wheel braking is achieved, significantly improving braking force. Without increasing hardware costs, software logic optimization enhances the vehicle's parking ability under steep inclines, effectively preventing vehicle rollback and improving safety and user confidence in off-road scenarios.

[0061] Corresponding to the vehicle parking control method provided in the embodiments of this application, the embodiments of this application also provide a vehicle parking control device, such as... Figure 2 As shown, the vehicle parking control device includes: The acquisition module 201 is used to acquire the current status information of the vehicle in real time; The drive module 202 is used to simultaneously drive the front wheel braking unit, the EPB actuator, and the transmission control unit when the current state of the vehicle is determined to meet the preset state conditions based on the vehicle's current state information. Specifically, the drive module drives the front wheel braking unit to keep the inlet and return valves of the front wheel braking unit in preset positions and to start the hydraulic pump at a preset frequency; drives the EPB actuator to enable the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle; and drives the transmission control unit to control the P gear lock mechanism inside the transmission to be engaged.

[0062] Corresponding to the vehicle parking control method provided in the embodiments of this application, the embodiments of this application also provide an electronic device for executing the vehicle parking control method, such as... Figure 3 As shown, the electronic device includes: a processor 301; and a memory 302 for storing a program for a vehicle parking control method. After the device is powered on and the program for the vehicle parking control method is run by the processor, the following steps are performed: Real-time acquisition of vehicle status information; When the current vehicle status is determined to meet the preset status conditions based on the vehicle's current status information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven. Specifically, the front wheel braking unit is driven to keep the inlet and return valves of the front wheel braking unit in preset positions and start the hydraulic pump at a preset frequency; the EPB actuator is driven to enable the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle; and the transmission control unit is driven to control the P gear lock mechanism inside the transmission to be engaged.

[0063] In one optional embodiment, the vehicle current status information includes at least the vehicle's current wheel speed, master cylinder current pressure, brake pad current thickness, the slope of the current ramp, information indicating whether the vehicle is currently in an active state, the vehicle's current battery voltage, the current gear, and the current EPB switch status.

[0064] In one optional embodiment, after obtaining the vehicle's current status information, the method further includes: Determine whether the current wheel speed of the vehicle is 0 within a preset time period; Determine if the current pressure in the master cylinder is greater than the preset pressure threshold; Determine if the current thickness of the brake pads is greater than the preset thickness; Determine whether the slope of the current incline of the vehicle is greater than the preset slope threshold; Determine if the vehicle is currently running. Determine whether the current voltage of the vehicle battery is greater than a preset voltage threshold. Determine if the current gear is P (Park). When it is determined that the vehicle's current state meets preset conditions based on the vehicle's current state information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously activated, including: When it is determined that the vehicle's current wheel speed is 0 within a preset time period, the current master cylinder pressure is greater than a preset pressure threshold, the current brake pad thickness is greater than a preset thickness threshold, the slope of the current slope of the vehicle is greater than a preset slope threshold, the vehicle is currently in an active state, the current battery voltage is greater than a preset voltage threshold, and the current gear is P, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven.

[0065] In an optional embodiment, after determining whether the current thickness of the brake pad is greater than a preset thickness threshold, the method further includes: When the current thickness of the brake pads is determined to be no greater than the preset thickness threshold, the brake pad wear warning light will be illuminated on the dashboard.

[0066] In an optional embodiment, after determining whether the slope of the current ramp where the vehicle is located is greater than a preset ramp slope threshold, the method further includes: When it is determined that the slope of the current slope of the vehicle is not greater than the preset slope threshold, only the EPB actuator and the transmission control unit are driven.

[0067] In an optional embodiment, after determining that the vehicle's current state meets preset state conditions based on the vehicle's current state signal, and simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit, the method further includes: Display icon-based alerts; and / or, display text alerts; and / or, display voice alerts.

[0068] In one alternative embodiment, driving the EPB actuator to cause the EPB actuator to drive the motor to apply parking brake to the rear wheels of the vehicle includes: Drive the EPB actuator so that the EPB actuator drive motor applies parking brake to the rear wheels of the vehicle via a cable or caliper motor.

[0069] Corresponding to the vehicle parking control method provided in the embodiments of this application, the embodiments of this application also provide a computer-readable storage medium storing a program for the vehicle parking control method, which is executed by a processor to perform the following steps: Real-time acquisition of vehicle status information; When the current vehicle status is determined to meet the preset status conditions based on the vehicle's current status information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven. Specifically, the front wheel braking unit is driven to keep the inlet and return valves of the front wheel braking unit in preset positions and start the hydraulic pump at a preset frequency; the EPB actuator is driven to enable the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle; and the transmission control unit is driven to control the P gear lock mechanism inside the transmission to be engaged.

[0070] In one optional embodiment, the vehicle current status information includes at least the vehicle's current wheel speed, master cylinder current pressure, brake pad current thickness, the slope of the current ramp, information indicating whether the vehicle is currently in an active state, the vehicle's current battery voltage, the current gear, and the current EPB switch status.

[0071] In one optional embodiment, after obtaining the vehicle's current status information, the method further includes: Determine whether the current wheel speed of the vehicle is 0 within a preset time period; Determine if the current pressure in the master cylinder is greater than the preset pressure threshold; Determine if the current thickness of the brake pads is greater than the preset thickness; Determine whether the slope of the current incline of the vehicle is greater than the preset slope threshold; Determine if the vehicle is currently running. Determine whether the current voltage of the vehicle battery is greater than a preset voltage threshold. Determine if the current gear is P (Park). When it is determined that the vehicle's current state meets preset conditions based on the vehicle's current state information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously activated, including: When it is determined that the vehicle's current wheel speed is 0 within a preset time period, the current master cylinder pressure is greater than a preset pressure threshold, the current brake pad thickness is greater than a preset thickness threshold, the slope of the current slope of the vehicle is greater than a preset slope threshold, the vehicle is currently in an active state, the current battery voltage is greater than a preset voltage threshold, and the current gear is P, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven.

[0072] In an optional embodiment, after determining whether the current thickness of the brake pad is greater than a preset thickness threshold, the method further includes: When the current thickness of the brake pads is determined to be no greater than the preset thickness threshold, the brake pad wear warning light will be illuminated on the dashboard.

[0073] In an optional embodiment, after determining whether the slope of the current ramp where the vehicle is located is greater than a preset ramp slope threshold, the method further includes: When it is determined that the slope of the current slope of the vehicle is not greater than the preset slope threshold, only the EPB actuator and the transmission control unit are driven.

[0074] In an optional embodiment, after determining that the vehicle's current state meets preset state conditions based on the vehicle's current state signal, and simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit, the method further includes: Display icon-based alerts; and / or, display text alerts; and / or, display voice alerts.

[0075] In one alternative embodiment, driving the EPB actuator to cause the EPB actuator to drive the motor to apply parking brake to the rear wheels of the vehicle includes: Drive the EPB actuator so that the EPB actuator drive motor applies parking brake to the rear wheels of the vehicle via a cable or caliper motor.

[0076] Corresponding to the vehicle parking control method provided in the embodiments of this application, the embodiments of this application also provide a computer program containing instructions, which, when executed by a computer, cause the computer to perform the following steps: Real-time acquisition of vehicle status information; When the current vehicle status is determined to meet the preset status conditions based on the vehicle's current status information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven. Specifically, the front wheel braking unit is driven to keep the inlet and return valves of the front wheel braking unit in preset positions and start the hydraulic pump at a preset frequency; the EPB actuator is driven to enable the EPB actuator drive motor to apply parking brake to the rear wheels of the vehicle; and the transmission control unit is driven to control the P gear lock mechanism inside the transmission to be engaged.

[0077] In one optional embodiment, the vehicle current status information includes at least the vehicle's current wheel speed, master cylinder current pressure, brake pad current thickness, the slope of the current ramp, information indicating whether the vehicle is currently in an active state, the vehicle's current battery voltage, the current gear, and the current EPB switch status.

[0078] In one optional embodiment, after obtaining the vehicle's current status information, the method further includes: Determine whether the current wheel speed of the vehicle is 0 within a preset time period; Determine if the current pressure in the master cylinder is greater than the preset pressure threshold; Determine if the current thickness of the brake pads is greater than the preset thickness; Determine whether the slope of the current incline of the vehicle is greater than the preset slope threshold; Determine if the vehicle is currently running. Determine whether the current voltage of the vehicle battery is greater than a preset voltage threshold. Determine if the current gear is P (Park). When it is determined that the vehicle's current state meets preset conditions based on the vehicle's current state information, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously activated, including: When it is determined that the vehicle's current wheel speed is 0 within a preset time period, the current master cylinder pressure is greater than a preset pressure threshold, the current brake pad thickness is greater than a preset thickness threshold, the slope of the current slope of the vehicle is greater than a preset slope threshold, the vehicle is currently in an active state, the current battery voltage is greater than a preset voltage threshold, and the current gear is P, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven.

[0079] In an optional embodiment, after determining whether the current thickness of the brake pad is greater than a preset thickness threshold, the method further includes: When the current thickness of the brake pads is determined to be no greater than the preset thickness threshold, the brake pad wear warning light will be illuminated on the dashboard.

[0080] In an optional embodiment, after determining whether the slope of the current ramp where the vehicle is located is greater than a preset ramp slope threshold, the method further includes: When it is determined that the slope of the current slope of the vehicle is not greater than the preset slope threshold, only the EPB actuator and the transmission control unit are driven.

[0081] In an optional embodiment, after determining that the vehicle's current state meets preset state conditions based on the vehicle's current state signal, and simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit, the method further includes: Display icon-based alerts; and / or, display text alerts; and / or, display voice alerts.

[0082] In one alternative embodiment, driving the EPB actuator to cause the EPB actuator to drive the motor to apply parking brake to the rear wheels of the vehicle includes: Drive the EPB actuator so that the EPB actuator drive motor applies parking brake to the rear wheels of the vehicle via a cable or caliper motor.

[0083] It should be noted that for a detailed description of the vehicle parking control device, electronic device, computer-readable storage medium and computer program product provided in the embodiments of this application, please refer to the relevant description of the vehicle parking control method embodiments provided in the embodiments of this application, which will not be repeated here.

[0084] Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

[0085] In a typical configuration, an electronic device includes one or more processors (Central Processing Units), input / output interfaces, network interfaces, and memory.

[0086] Memory may include non-persistent storage in computer-readable media, such as random access memory and / or non-volatile memory, like read-only memory or flash memory. Memory is an example of computer-readable media.

[0087] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can store information using any method or technology. Information can be computer-readable operations, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory, static random access memory, dynamic random access memory, other types of random access memory, read-only memory, electrically erasable programmable read-only memory, flash memory or other memory technologies, compact disc read-only memory, digital video disc or other optical storage, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include non-transitory computer-readable media, such as modulated data signals and carrier waves.

[0088] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, compact disc read-only memory, optical storage, etc.) containing computer-usable program code.

[0089] Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

Claims

1. A vehicle parking control method, characterized in that, include: Real-time acquisition of vehicle status information; When it is determined that the current state of the vehicle meets the preset state conditions based on the current state information of the vehicle, the front wheel braking unit, the EPB actuator and the transmission control unit are driven simultaneously. Specifically, the front wheel braking unit is driven to keep the inlet valve and return valve of the front wheel braking unit in preset positions and start the hydraulic pump at a preset frequency; the EPB actuator is driven to drive the motor of the EPB actuator to apply parking brake to the rear wheels of the vehicle. Drive the transmission control unit to keep the P-gear lock-up mechanism inside the transmission engaged.

2. The vehicle parking method according to claim 1, characterized in that, The vehicle's current status information includes at least the vehicle's current wheel speed, master cylinder current pressure, brake pad current thickness, the slope of the current ramp, information indicating whether the vehicle is currently running, the vehicle's current battery voltage, the current gear, and the current EPB switch status.

3. The vehicle parking control method according to claim 2, characterized in that, After obtaining the current vehicle status information, the process also includes: Determine whether the current wheel speed of the vehicle is 0 within a preset time period; Determine whether the current pressure of the master cylinder is greater than a preset pressure threshold; Determine whether the current thickness of the brake pad is greater than a preset thickness threshold; Determine whether the slope of the current ramp where the vehicle is located is greater than a preset slope threshold; Determine whether the vehicle is currently in an active state; Determine whether the current voltage of the vehicle battery is greater than a preset voltage threshold; Determine whether the current gear is P (Park). The step of simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit when the vehicle's current state is determined to meet preset state conditions based on the vehicle's current state information includes: When it is determined that the current wheel speed of the vehicle is 0 within a preset time period, the current pressure of the master cylinder is greater than a preset pressure threshold, the current thickness of the brake pads is greater than a preset thickness threshold, the slope of the slope the vehicle is currently on is greater than a preset slope threshold, the vehicle is currently in an active state, the current voltage of the vehicle battery is greater than a preset voltage threshold, and the current gear is P, the front wheel braking unit, EPB actuator, and transmission control unit are simultaneously driven.

4. The vehicle parking control method according to claim 3, characterized in that, After determining whether the current thickness of the brake pad is greater than a preset thickness threshold, the method further includes: When it is determined that the current thickness of the brake pad is not greater than a preset thickness threshold, the brake pad wear warning light is illuminated on the dashboard.

5. The vehicle parking control method according to claim 3, characterized in that, After determining whether the slope of the current incline of the vehicle is greater than a preset slope slope threshold, the method further includes: When it is determined that the slope of the current slope of the vehicle is not greater than the preset slope threshold, only the EPB actuator and the transmission control unit are driven.

6. The vehicle parking method according to claim 1, characterized in that, After determining that the vehicle's current state meets preset state conditions based on the vehicle's current state information, and simultaneously driving the front wheel braking unit, EPB actuator, and transmission control unit, the method further includes: Display icon-based alerts; and / or, display text alerts; and / or, display voice alerts.

7. The vehicle parking method according to claim 1, characterized in that, The method of driving the EPB actuator to cause the EPB actuator to drive the motor to apply parking brake to the rear wheels of the vehicle includes: Drive the EPB actuator so that the EPB actuator drive motor applies parking brake to the rear wheels of the vehicle via a cable or caliper motor.

8. A vehicle parking control device, characterized in that, include: The acquisition module is used to acquire the vehicle's current status information in real time; The drive module is used to simultaneously drive the front wheel braking unit, the EPB actuator, and the transmission control unit when it is determined that the current state of the vehicle meets the preset state conditions based on the current state information of the vehicle. Specifically, the drive module drives the front wheel braking unit to keep the inlet valve and return valve of the front wheel braking unit in preset positions and starts the hydraulic pump at a preset frequency; and drives the EPB actuator to drive the motor of the EPB actuator to apply the parking brake to the rear wheels of the vehicle. Drive the transmission control unit to keep the P-gear lock-up mechanism inside the transmission engaged.

9. An electronic device, characterized in that, The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the vehicle parking control method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the vehicle parking control method according to any one of claims 1-7.

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