Automatic brake control system device of automobile

Abstract

The utility model discloses an automatic brake control system device of an automobile, which comprises a central controller and a numerical control brake device, the central controller is electrically connected with the numerical control brake device, and a vehicle-mounted camera device and a millimeter wave radar device are arranged around the automobile. The vehicle-mounted camera device and the millimeter wave radar device are connected with the central controller through the bus module, the numerical control brake device comprises a motor and a valve body, a metal wire extends into the valve body, one end of the metal wire is connected with a brake pedal device, and the motor is used for controlling the valve body to rotate so as to control the brake pedal device. A traditional braking mode does not need to be changed, the electric control automatic emergency braking function of accurate control can be achieved, and manpower and material resources consumed in the installation process of an automobile braking system are reduced; meanwhile, due to the fact that the structure of the braking system of the original automobile is not changed, the device can adapt to braking systems of various automobiles and is high in compatibility.

Description

Technical Field

[0001] The utility model relates to the field of brake systems, in particular to an automobile automatic brake control system device. Background Art

[0002] In the existing technology, automatic emergency braking system technology has been widely used. The Chinese utility model patent with patent number 201810770987.3 discloses an automatic emergency braking system suitable for air-brake commercial vehicles. The electronic foot valve is connected to the electronically controlled air brake front axle valve and the electronically controlled air brake rear axle valve through an air-controlled pipeline; when the driver steps on the electronic foot valve pedal, the brake air circuit connecting the electronically controlled air brake front axle valve and the front axle air reservoir, and the electronically controlled air brake rear axle valve and the rear axle air reservoir is opened through the air-controlled pipeline, and the brake air pressure enters the brake cylinder through the ABS valve, and the vehicle starts braking; when the driver releases the electronic foot valve pedal, the brake air circuit connecting the electronically controlled air brake front axle valve and the front axle air reservoir, and the electronically controlled air brake rear axle valve and the rear axle air reservoir is closed through the air-controlled pipeline, the brake air pressure of the front axle is connected to the atmosphere, and the brake air pressure of the rear axle is connected to the atmosphere, and the brake air pressure of the brake cylinder enters the axle valve through the ABS valve and is discharged into the atmosphere. However, existing technologies still have certain limitations. For example, mechanical air brake foot valves are still widely used on the market. Using electronic foot valves to change the braking method of traditional vehicles is not compatible with all mass-produced commercial vehicles on the market. In addition, this also places high demands on the matching of parts of new models, which greatly increases production costs. Utility Model Content

[0003] In order to solve the above-mentioned problems, the utility model provides a vehicle automatic brake control system device, including a central controller and a numerical control braking device, the central controller and the numerical control braking device are electrically connected, and also includes a vehicle power supply, the vehicle power supply is used to power the central controller and the numerical control braking device, and vehicle-mounted camera devices and millimeter-wave radar devices are arranged around the vehicle, the vehicle-mounted camera devices and millimeter-wave radar devices are connected to the central controller through a bus module, the numerical control braking device includes a motor and a valve body, a metal wire extends inside the valve body, one end of the metal wire is connected to a brake pedal device, and the motor is used to control the rotation of the valve body, thereby controlling the brake pedal device.

[0004] Furthermore, a drive shaft is provided in the motor, the valve body is flat and circular, one end of the metal wire is fixed on the side wall between the two end faces of the valve body, and the other end is connected to the brake pedal device, and the drive shaft is inserted into the middle of the valve body and fixedly connected to the valve body.

[0005] Furthermore, a control circuit board is provided on the side of the valve body away from the motor, and the control circuit board is respectively connected to the central controller and the numerical control braking device. The driving shaft of the motor passes through the valve body and approaches the control circuit board. A magnet is provided at the end of the driving shaft, and a Hall sensor is provided on the control circuit board.

[0006] Furthermore, a wire harness groove is provided on the side wall of the valve body, and one end of the metal wire is fixed in the wire harness groove.

[0007] Furthermore, a first shell and a second shell are arranged around the valve body, the first shell and the second shell are stacked together, a accommodating cavity is provided in the second shell, the valve body is placed in the accommodating cavity, a limiting ring is provided in the first shell, and a cylindrical protrusion is provided on the top of the valve body. When the first shell covers the second shell, the protrusion is embedded in the limiting ring to form a tight fit with it.

[0008] Furthermore, a through hole is formed on the side wall of the second shell, and the metal wire extends from the through hole to the brake pedal device.

[0009] Furthermore, a positioning post is provided on the top of the second shell, and a positioning groove is provided on the bottom of the first shell. When the first shell and the second shell are stacked together, the positioning post is inserted into the positioning groove.

[0010] Furthermore, a temperature sensing device is provided on the outside of the car. The central controller is powered and communicates with the temperature sensing device through a bus module. The temperature sensing device collects the ambient temperature of the car for sensing and monitoring.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This application does not require changing the traditional braking method, and can realize the precise control of the electronic automatic emergency braking function, reducing the manpower and material resources consumed in the process of modifying the automobile braking system; at the same time, since the installation does not change the original vehicle's brake air circuit, it can be adapted to the braking systems of various vehicles and has strong compatibility; at the same time, it can greatly shorten the braking calculation and execution time, and improve the safety of vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 It is a module diagram of the overall system of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the numerically controlled braking device of the present utility model;

[0016] Figure 3 This is a schematic structural diagram of the valve body of the numerically controlled braking device of the present utility model;

[0017] Figure 4 This is a structural schematic diagram of the first housing, the second housing and the valve body of the numerically controlled braking device of the present utility model;

[0018] Figure 5 This is a structural schematic diagram of the first housing, the second housing and the valve body of the numerically controlled braking device of the present invention from another angle.

[0019] The reference numerals and names in the figures are as follows:

[0020] Central controller 20, numerically controlled braking device 10, vehicle power supply 30, vehicle-mounted camera device 40, millimeter-wave radar device 50, bus module 60, motor 100, valve body 200, metal wire 210, brake pedal device 70, drive shaft 110, control circuit board 220, magnet 111, Hall sensor 221, wiring harness trough 230, first shell 300, second shell 400, accommodating cavity 410, limiting ring 310, protrusion 240, through hole 420, positioning column 430, positioning groove 320, temperature sensing device 80. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The present invention will be described in more detail. It should be understood that the specific embodiments described herein are intended only to explain the present invention and are not intended to limit the present invention. It should be noted that when an element is described as being "fixed to" another element, it may be directly on the other element, or one or more intervening elements may be present therebetween. When an element is described as being "connected to" another element, it may be directly connected to the other element, or one or more intervening elements may be present therebetween.

[0023] In the description of the present invention, it should be noted that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0026] The preferred embodiment of the present invention will be further described with reference to the accompanying drawings. Figure 1 and Figure 2 As shown, the automobile automatic brake control system device includes a central controller 20 and a numerical control braking device 10, the central controller 20 is electrically connected to the numerical control braking device 10, and also includes a vehicle power supply 30, the vehicle power supply 30 is used to power the central controller 20 and the numerical control braking device 10, and vehicle-mounted camera devices 40 and millimeter-wave radar devices 50 are arranged around the automobile. The vehicle-mounted camera devices 40 and millimeter-wave radar devices 50 can be arranged on the roof of the vehicle or on the license plate, and their specific locations are not limited. The vehicle-mounted camera devices 40 and millimeter-wave radar devices 50 are connected to the central controller 20 through a bus module 60. The numerical control braking device 10 includes a motor 100 and a valve body 200, a metal wire 210 extends inside the valve body 200, one end of the metal wire 210 is connected to the brake pedal device 70, and the motor 100 is used to control the rotation of the valve body 200, thereby controlling the brake pedal device 70.

[0027] In the working state of this embodiment, the central controller 20 is powered and communicates with the vehicle-mounted camera device 40 through the bus module 60, and collects the working status information of the vehicle-mounted camera device 40 and the target information and lane line information detected by the vehicle-mounted camera device 40; at the same time, the central controller 20 communicates with the millimeter-wave radar device 50 through the bus module 60, and collects the radar working status information and the target information detected by the radar. When the vehicle-mounted camera device 40 and the millimeter-wave radar device 50 detect that the vehicle needs to brake within a preset distance, an electrical signal is sent to the central controller 20 through the bus module 60. After receiving the signal, the central controller 20 sends an electrical signal to the numerical control braking device 10, and the motor 100 controls the valve body 200 to rotate, thereby pulling the brake pedal device 70 through the metal wire 210 to brake the car. It should be noted that the vehicle-mounted camera device 40, the millimeter-wave radar device 50 and the brake pedal device 70 described here are all existing technologies, and their principles are not repeated here.

[0028] Compared with the existing technology, this application does not require changing the traditional braking method, and can realize the precise control of the electronic automatic emergency braking function, reducing the manpower and material resources consumed in the process of modifying the automobile braking system; at the same time, since the installation does not change the original vehicle's brake air circuit, it can be adapted to the braking systems of various vehicles and has strong compatibility; at the same time, it can greatly shorten the braking calculation and execution time, and improve the safety of vehicle driving.

[0029] On the basis of the above embodiment, Figure 2 As shown, a drive shaft 110 is provided in the motor 100, the valve body 200 is flat and circular, one end of the metal wire 210 is fixed to the side wall between the two end faces of the valve body 200, and the other end thereof is connected to the brake pedal device 70. The drive shaft 110 is inserted into the middle of the valve body 200 and is fixedly connected to the valve body 200. In this way, when the central controller 20 sends an electrical signal to the CNC braking device 10, the motor 100 starts to drive the drive shaft 110 to rotate, thereby driving the valve body 200 to rotate, and then driving the metal wire 210 on the side wall of the valve body 200 to pull the brake pedal device 70, thereby achieving braking of the vehicle.

[0030] On the basis of the above embodiment, Figure 2As shown, a control circuit board 220 is provided on the motor 100 on the side of the valve body 200 away from the motor 100. The control circuit board 220 is respectively connected to the central controller 20 and the numerical control braking device 10, and is used to forward the electrical signal of the central controller 20 to the motor 100. At the same time, in the present application, the drive shaft 110 of the motor 100 passes through the valve body 200 and approaches the control circuit board 220. A magnet 111 is provided at the end of the drive shaft 110, and a Hall sensor 221 is provided on the control circuit board 220. When the drive shaft 110 drives the magnet to rotate, the Hall sensor 221 will monitor the rotation angle and speed of the drive shaft 110. When a certain threshold is exceeded, a signal will be sent to the motor 100 to control the rotation angle and speed of the drive shaft 110 to prevent excessive braking of the brake pedal device 70, thereby causing danger to the driver.

[0031] In some implementations, combined Figure 2 and Figure 3 As shown, a wire harness groove 230 is provided on the side wall of the valve body 200, and one end of the metal wire 210 is fixed in the wire harness groove 230, so that when the drive shaft 110 pulls the metal wire 210, the metal wire 210 can be bundled in the wire harness groove 230, thereby preventing the metal wire 210 from falling off the valve body 200 and causing failure of control over the brake pedal device 70.

[0032] In some implementations, combined Figure 4 and Figure 5 As shown, a first shell 300 and a second shell 400 are arranged around the valve body 200, the first shell 300 and the second shell 400 are stacked together, and a accommodating cavity 410 is arranged in the second shell 400, the valve body 200 is placed in the accommodating cavity 410, and a limiting ring 310 is arranged in the first shell 300. A cylindrical protrusion 240 is arranged on the top of the valve body 200. When the first shell 300 covers the second shell 400, the protrusion 240 is embedded in the limiting ring 310 to form a tight fit therewith, so that when the driving shaft 110 drives the valve body 200 to rotate, it will rotate in the accommodating cavity 410 under the limitation of the limiting ring 310, thereby preventing the valve body 200 from axial deflection during rotation.

[0033] On the basis of the above embodiment, Figure 4 and Figure 5 As shown, a through hole 420 is initially formed on the side wall of the second housing 400 , and the metal wire 210 extends from the through hole 420 to the brake pedal device 70 .

[0034] In some implementations, a positioning column 430 is provided at the top of the second shell 400, and a positioning groove 320 is provided at the bottom of the first shell 300. When the first shell 300 and the second shell 400 are stacked together, the positioning column 430 is inserted into the positioning groove 320, thereby playing a positioning role in the stacking direction of the first shell 300 and the second shell 400.

[0035] On the basis of the above embodiment, Figure 1 As shown, a temperature sensing device 80 is also provided on the outside of the automobile. The central controller 20 is powered and communicates with the temperature sensing device 80 through the bus module 60 to collect the ambient temperature of the automobile for sensing and monitoring. When the ambient temperature of the automobile reaches a low temperature threshold at which the road surface may be frozen, the central controller 20 will automatically shut down the numerically controlled braking device 10 and only retain the driving warning reminder function.

[0036] The above exemplary embodiments are detailed, and the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included within the present invention.

Claims

1. An automobile automatic brake control system device, characterized in that: The invention comprises a central controller (20) and a numerical control braking device (10), wherein the central controller (20) is electrically connected to the numerical control braking device (10), and further comprises a vehicle power supply (30), wherein the vehicle power supply (30) is used to supply power to the central controller (20) and the numerical control braking device (10). Vehicle-mounted camera devices (40) and millimeter-wave radar devices (50) are arranged around the vehicle, wherein the vehicle-mounted camera devices (40) and the millimeter-wave radar devices (50) are connected to the central controller (20) via a bus module (60). The numerical control braking device (10) comprises a motor (100) and a valve body (200), wherein a metal wire (210) extends inside the valve body (200), and one end of the metal wire (210) is connected to a brake pedal device (70), and the motor (100) is used to control the rotation of the valve body (200), thereby controlling the brake pedal device (70).

2. The automobile automatic brake control system device according to claim 1, characterized in that: A drive shaft (110) is provided in the motor (100); the valve body (200) is flat and circular; one end of the metal wire (210) is fixed to the side wall between the two end faces of the valve body (200); the other end is connected to the brake pedal device (70); the drive shaft (110) is inserted into the middle of the valve body (200) and is fixedly connected to the valve body (200).

3. The automobile automatic brake control system device according to claim 2, characterized in that: A control circuit board (220) is provided on the motor (100) at a side of the valve body (200) away from the motor (100), and the control circuit board (220) is connected to the central controller (20) and the numerical control braking device (10) respectively. The drive shaft (110) of the motor (100) passes through the valve body (200) and approaches the control circuit board (220). A magnet (111) is provided at the end of the drive shaft (110), and a Hall sensor (221) is provided on the control circuit board (220).

4. The automobile automatic brake control system device according to claim 2, characterized in that: A wire harness groove (230) is provided on the side wall of the valve body (200), and one end of the metal wire (210) is fixed in the wire harness groove (230).

5. The automobile automatic brake control system device according to claim 2, characterized in that: A first shell (300) and a second shell (400) are arranged around the valve body (200), the first shell (300) and the second shell (400) are stacked together, a receiving cavity (410) is arranged in the second shell (400), the valve body (200) is placed in the receiving cavity (410), a limiting ring (310) is arranged in the first shell (300), and a cylindrical protrusion (240) is arranged on the top of the valve body (200), when the first shell (300) covers the second shell (400), the protrusion (240) is embedded in the limiting ring (310) to form a tight fit therewith.

6. The automobile automatic brake control system device according to claim 5, characterized in that: A through hole (420) is formed on the side wall of the second shell (400), and the metal wire (210) extends from the through hole (420) to connect with the brake pedal device (70).

7. The automobile automatic brake control system device according to claim 6, characterized in that: A positioning column (430) is provided on the top of the second shell (400), and a positioning groove (320) is provided on the bottom of the first shell (300). When the first shell (300) and the second shell (400) are stacked together, the positioning column (430) is inserted into the positioning groove (320).

8. The automobile automatic brake control system device according to claim 1, characterized in that: A temperature sensing device (80) is also provided outside the vehicle. The central controller (20) is powered and communicates with the temperature sensing device (80) via a bus module (60). The temperature sensing device (80) collects the ambient temperature of the vehicle for sensing and monitoring.

Images