A distributed parking control system for passenger vehicles

Abstract

This invention discloses a distributed parking control system for passenger vehicles, belonging to the field of passenger vehicle braking safety technology. The invention includes a switch group; a controller connected to the switch group; and an actuator connected to the controller and executing the control signals input by the switch group. The switch group includes a column shifter switch and a push-button switch. The column shifter switch is mounted on the column shifter and generates a clamping parking signal. The push-button switch is mounted on a large screen and generates release and forced release unlocking signals. This invention maximizes the use of other onboard components while ensuring correct parking operation. It achieves EPB parking function through control strategies, reducing the number of system components, simplifying operation steps, and making vehicle departure operations faster. It hides or weakens infrequently used functions to reduce disturbance, improves the driving experience, and ensures the parking safety and reliability of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of passenger vehicle braking safety technology, and in particular to a distributed parking control system for passenger vehicles. Background Technology

[0002] Currently, when a pure electric vehicle is powered on and started, the driver needs to go through a series of steps and actions before the vehicle can drive away, including checking whether the doors are closed, whether the seat belt is fastened, whether the gear is in reverse or neutral, whether the EPB switch is unlocked, and pressing the accelerator. Conventional EPB systems use an independent 3-position switch, which includes three states: clamped, released, and not pressed. It is connected to the EPB brake or ESP controller through a hard wiring harness. The corresponding system operation steps are numerous, leaving no room for improvement in driving experience or cost reduction.

[0003] Therefore, based on the above problems, how to reduce the number of system components, simplify operation steps, make vehicle departure operations faster, hide or weaken infrequently used components to reduce disturbance rate, improve driving experience, and at the same time ensure the parking safety and reliability of the vehicle have become important technical problems that need to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a distributed parking control system for passenger vehicles.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention discloses a distributed parking control system for passenger vehicles, comprising:

[0007] Switch group;

[0008] The controller is connected to the switch group;

[0009] An actuator is connected to the controller and executes the control signals input by the switch group, wherein the switch group includes a shift switch and a push-button switch;

[0010] The latch switch is configured on the latch and is used to generate a clamping stop signal;

[0011] The button switch is located on the large screen and is used to generate release and forced release unlock signals.

[0012] Furthermore, the controller includes an ESP controller and an IBS controller connected to the ESP controller;

[0013] The ESP controller is connected to the shift lever, the large screen, and the EPB left brake of the actuator, respectively.

[0014] The IBS controller is connected to the EPB right brake of the actuator.

[0015] Furthermore, the shift switch is connected to the controller via a hard wire harness.

[0016] Furthermore, the shift switch is a P-position switch.

[0017] Furthermore, the push-button switch includes an EPB release button and an EPB forced release button, which are connected to the controller via a CAN line.

[0018] In the above technical solution, the distributed parking control system for passenger vehicles provided by the present invention has the following advantages:

[0019] This invention relates to a distributed parking control system for passenger vehicles. It utilizes a column shifter (CSM) switch to engage and engage the EPB parking brake, and a large-screen interface-mounted EPB release button to release and unlock the left and right EPB parking brakes. A large-screen interface-mounted EPB forced release button enables forced release of the EPB parking brake in case of functional degradation. Compared to existing technologies, this system replaces the conventional three-position EPB switch with a combination of column shifter and large-screen buttons, reducing components and costs. The column shifter button is hardwired to the ESP controller to ensure the EPB brake engagement function, meeting high functional safety requirements. The EPB release and forced release switches can be adjusted in depth on the large screen according to usage frequency, minimizing disruption to the driver and ensuring emergency use in case of functional degradation, thus improving the driver's experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a functional block diagram of a distributed parking control system for passenger vehicles disclosed in this invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Switchgear; 2. Controller; 3. Actuator; 4. Stop; 5. Large screen;

[0024] 11. P position switch; 12. EPB release button; 13. EPB forced release button;

[0025] 21. ESP controller; 22. IBS controller;

[0026] 31. EPB left brake; 32. EPB right brake. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See Figure 1 As shown;

[0029] The invention relates to a distributed parking control system for passenger vehicles, comprising: a switch group 1, a controller 2, an actuator 3, and a CAN bus and hardwire harness for transmitting command signals;

[0030] The controller 2 is connected to the switch group 1, and the actuator 3 is connected to the controller 2 and executes the control signals input by the switch group 1. The switch group 1 includes a shift switch and a push-button switch.

[0031] The shift switch is located on shift 4 and is used to generate a clamping stop signal;

[0032] The push-button switches are configured on the large screen 5 to generate release and forced release unlock signals. That is, each switch in switch group 1 generates a corresponding switch status signal according to its functional definition. These signals are transmitted to the ESP and IBS controllers of controller 2 via CAN bus or hard wiring harness. The ESP and IBS controllers identify, judge, and calculate the status signals of these different switches to generate control signals, which drive the EPB parking brake of actuator 3 to clamp or unlock.

[0033] Preferably, the controller 2 includes an ESP controller 21 and an IBS controller 22. The IBS controller 22 is connected to the ESP controller 21. The ESP controller 21 is connected to the shift lever 4, the large screen 5, and the EPB left brake 31 of the actuator 3. The EPB right brake 32 of the actuator 3 is connected to the IBS controller 22.

[0034] Preferably, the shift switch is connected to the controller 2 via a hard wire harness. This shift switch is a P-position switch 11.

[0035] Preferably, the push-button switch includes an EPB release button 12 and an EPB forced release button 13, which are connected to the controller 2 via a CAN line.

[0036] See Figure 1As shown, in a specific embodiment, switch group 1 generates status signals corresponding to its functions, including: P-position switch 11 generating an EPB switch status hard-wired signal; the EPB release button 12 on the large screen 5 generates a CAN bus signal for the EPB release switch status. The EPB forced release button 13 on the large screen also generates a corresponding CAN bus signal for the EPB forced release switch status.

[0037] Specifically, the ESP controller 21 receives the hard-wired signal from the P-position switch 11 and converts it into an EPB switch status signal, which is then sent to the CAN bus. The ESP controller 21 also receives the EPB release switch signal and forced release switch signal from the large screen via the CAN line. The ESP controller 21 sends these three signals to the IBS controller 22 via the CAN bus. Based on its own judgment of the signal status, the ESP controller 21 drives the left EPB brake 31 to operate, and the IBS controller 22 drives the right EPB brake 32 to operate, based on its own judgment of the signal status.

[0038] Among them, the EPB left brake 31 completes the clamping and releasing of the vehicle's left rear wheel; the EPB right brake 32 completes the clamping and releasing of the vehicle's right rear wheel;

[0039] In the above technical solution, the present invention provides a distributed parking control system for passenger vehicles, the method of use of which is as follows:

[0040] When the driver starts the vehicle, the EPB parking brake is engaged, ensuring the vehicle remains stationary. The driver presses the EPB release button on the display screen, transmitting the EPB release signal to the ESP controller via the CAN bus. The ESP controller confirms this signal and sends it to the IBS controller via the CAN bus. Simultaneously, the ESP and IBS controllers control the left and right EPB parking brakes respectively to unlock and release the wheels. When the driver stops the vehicle, pressing the Shift Keying (CSM) switch engages both the left and right EPB brakes, bringing the vehicle to a complete stop.

[0041] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A distributed parking control system for passenger vehicles, characterized in that, include: Switch group (1); The controller (2) is connected to the switch group (1); An actuator (3) is connected to the controller (2) and executes the control signals input by the switch group (1), wherein the switch group (1) includes a shift switch and a push-button switch; The shift switch is connected to the controller (2) via a hard wire harness, and the push-button switch is connected to the controller (2) via a CAN line; The stop switch is disposed on the stop (4) and is used to generate a clamping stop signal; The button switch is configured on the large screen (5) and is used to generate release and forced release unlock signals.

2. The distributed parking control system for passenger vehicles according to claim 1, characterized in that: The controller (2) includes an ESP controller (21) and an IBS controller (22) connected to the ESP controller (21). The ESP controller (21) is connected to the shift lever (4), the large screen (5), and the EPB left brake (31) of the actuator (3); The IBS controller (22) is connected to the EPB right brake (32) of the actuator (3).

3. The distributed parking control system for passenger vehicles according to claim 1, characterized in that: The shift switch is a P-position switch (11).

4. A distributed parking control system for passenger vehicles according to claim 1, characterized in that: The push button switch includes an EPB release button (12) and an EPB forced release button (13), which are connected to the controller (2) via a CAN line.

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