WO2019103304A1

WO2019103304A1 - Acceleration and deceleration control device for vehicle

Info

Publication number: WO2019103304A1
Application number: PCT/KR2018/011582
Authority: WO
Inventors: 최성재; 서정호
Original assignee: (주)케이에이알
Priority date: 2017-11-23
Filing date: 2018-09-28
Publication date: 2019-05-31

Abstract

The present invention relates to an acceleration and deceleration control device for a vehicle, comprising: a brake position sensor (BPS) installed to a brake pedal and detecting the position of the brake pedal; an accelerator position sensor (APS) installed to an accelerator and detecting the position of the accelerator; a first control unit for controlling the acceleration and deceleration of a vehicle by CAN-communicating with the BPS and the APS and receiving position information of the brake pedal and the accelerator; a second control unit for controlling the acceleration and deceleration of the vehicle by intervening in the event of a failure in the first control unit or of a failed transfer of the position information from any one of the BPS and the APS to the first control unit; and an auxiliary operation unit provided in the area in which the brake pedal is installed, and actuating the brake pedal by being controlled by the second control unit.

Description

Acceleration / deceleration control device

The present invention relates to an acceleration / deceleration control device for a vehicle.

The vehicle is driven by a driver through a steering wheel as a steering operation means, an accelerator pedal (Accel-pedal) and a brake pedal (acceleration / deceleration operation means), and the like to drive a vehicle driver and a passenger It is a means of transport that helps you reach your desired destination.

In recent years, a plurality of sensors, a steering control means and an acceleration / deceleration control means are mounted on an existing vehicle to check the road surface condition, the position of nearby vehicles and objects, road signals, etc., and autonomously operate The autonomous vehicle has been studied continuously.

The acceleration / deceleration control means of the conventional autonomous vehicle includes a brake pedal position sensor (BPS) installed on the brake pedal for detecting the position of the brake pedal, an accelerator pedal position sensor And a control unit for controlling the acceleration and deceleration of the vehicle by communicating with a sensor (Accel-pedal Position Sensor), a brake position sensor and an accelerator pedal position sensor (CAN).

However, when the brake position sensor, the accelerator pedal position sensor, or the control unit fails, or when the brake position sensor and the accelerator pedal position sensor are not in CAN communication with the control unit, the conventional acceleration / There is a problem in that a safety accident may be caused by operating the vehicle differently from the intention of the driver at the time of driving.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a brake pedal position sensor, a brake pedal position sensor, and a brake pedal position sensor, The acceleration / deceleration control device of the vehicle is capable of controlling the acceleration / deceleration of the vehicle to prevent a safety accident from occurring.

According to an aspect of the present invention, there is provided an acceleration / deceleration control apparatus for a vehicle including a brake position sensor (BPS) installed on a brake pedal for detecting a position of a brake pedal, A first control unit for receiving the position information of the brake pedal and the accelerator pedal while communicating with the pedal position sensor APS, the brake position sensor and the accelerator pedal position sensor in CAN communication, and controlling acceleration and deceleration of the vehicle; A second controller for interrupting the acceleration / deceleration of the vehicle when the position information of the brake pedal position sensor or the brake pedal position sensor is not transmitted to the first controller, And an auxiliary operation portion that is controlled by the second control portion to operate the brake pedal. .

Further, the auxiliary operation portion includes a bracket including a coupling portion coupled to a region where the brake pedal is installed and a support portion projecting from the coupling portion perpendicularly to the coupling portion, and a bracket fixedly installed at a predetermined position of the support portion, A pressure roller which is coupled to an end of a rotary bar extending in a radial direction of the rotary shaft and presses a part of the brake pedal in accordance with the rotation of the rotary shaft, And the second control unit controls the acceleration / deceleration of the vehicle by comparing the rotation angle value of the rotation shaft measured by the encoder with a preset value.

The second control unit preferably activates the accelerator pedal when the measured rotational angle value is lower than a preset value, and stops the accelerator pedal when the measured rotational angle value is greater than a predetermined value.

Preferably, the first control unit and the second control unit takeover control of the vehicle to the driver when the driver operates either the brake pedal or the accelerator pedal.

The accelerating and decelerating control device for a vehicle according to the present invention having the above-mentioned configuration is characterized in that when any one of the brake position sensor, the accelerator pedal position sensor and the control part is out of order or the brake position sensor and the accelerator pedal position sensor are in CAN communication The acceleration / deceleration of the vehicle can be controlled so that a safety accident can be prevented from occurring.

1 is a configuration diagram of a vehicle acceleration / deceleration control apparatus according to an embodiment of the present invention;

2 is a perspective view of the auxiliary operation portion shown in Fig.

DESCRIPTION OF REFERENCE NUMERALS

10; Brake pedal

20; Accelerator pedal

110; Brake position sensor

120; Accelerator pedal position sensor

130; [0035]

140; The second control section

150; Auxiliary operation part

152; Brackets

152a; Engaging portion

152b; Support

154; Operating motor

154a; Rotating shaft

154b; Rotating bar

156; Pressure roller

158; Encoder

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a vehicle acceleration / deceleration control apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of an acceleration / deceleration control apparatus for a vehicle according to an embodiment of the present invention, and Fig. 2 is a perspective view of the operation portion shown in Fig.

The accelerator pedal position sensor 120, the first control unit 130, the second control unit 140, the auxiliary operation unit 140, (150).

A brake position sensor (BPS) 110 is installed on the brake pedal 10 to detect the position information of the brake pedal 10.

An accelerator pedal position sensor 120 is installed in the accelerator pedal 20 to detect the position information of the accelerator pedal 120. [

The first control unit 130 controls the brake position sensor 110 and the accelerator pedal position sensor 120 based on information received from a plurality of sensors (not shown) and steering control means (not shown) CAN) communication while receiving the position information of the brake pedal 10 and the accelerator pedal 20 to control acceleration and deceleration of the vehicle.

At this time, a plurality of sensors (not shown) may be used, for example, a camera, GPS, Radar, or Lidar, which can confirm the road surface condition, the location of nearby vehicles and objects, and road signals.

The second control unit 140 intervenes when the failure of the first control unit 130 or the position information of either the brake position sensor 110 or the accelerator pedal position sensor 120 is not transmitted to the first control unit 130 Deceleration of the vehicle is controlled by operating the auxiliary operation unit 150 to be described later on the basis of information received from a plurality of sensors (not shown) and steering control means (not shown) provided on the vehicle.

If the first controller 130 operates normally and the position information of the brake position sensor 110 and the accelerator pedal position sensor 120 is normally transmitted to the first controller 130, The controller 130 passes the position information of the brake position sensor 110 and the accelerator pedal position sensor 120 and the information of the plurality of sensors and the steering control means to the first control unit 130 .

The second control unit 140 controls acceleration and deceleration of the vehicle by comparing the rotation angle value of the rotation shaft 154a measured by the encoder 158 of the auxiliary operation unit 150 with a predetermined value. 140 actuates the accelerator pedal 20 if the measured rotational angle value from the encoder 158 is less than a predetermined value and if the measured rotational angle value from the encoder 158 is greater than a predetermined value, Stop operation.

The auxiliary operation part 150 is provided in an area where the brake pedal 10 is installed and is controlled by the second control part 140 to operate the brake pedal 10.

The auxiliary operation portion 150 includes a bracket 152, an operation motor 154, a pressure roller 156, and an encoder 158.

The bracket 152 includes a coupling portion 152a coupled to an area where the brake pedal 10 is installed and a support portion 152b formed to protrude from the coupling portion 152a perpendicularly to the coupling portion 152a.

The operation motor 154 is provided with a rotation shaft 154a which is inserted into a predetermined position of the support portion 152b so as to be inserted into an end portion of the support portion 152b and is located in a partial region of the brake pedal 10.

The pressure roller 156 is coupled to an end of a rotary bar 154b extending in the radial direction of the rotary shaft 154a at the end of the rotary shaft 154a and is provided with a part of the brake pedal 10 in accordance with the rotation of the rotary shaft 154a Pressure.

The pressure roller 156 presses the pressure plate 12 projectingly coupled to the side surface of the brake pedal 10.

The encoder 158 is installed in the operation motor 154, detects the rotation angle of the rotation shaft 154a, and transmits the rotation angle to the second control unit 140. [

When the first control unit 130 operates normally and the position information of the brake position sensor 110 and the accelerator pedal position sensor 120 is normally transmitted to the first control unit 130, The brake pedal 10 is operated without load so as not to interfere with the operation of the brake pedal 10.

The first control unit 130 and the second control unit 140 takeover control of the vehicle to the driver when the driver operates either the brake pedal 10 or the accelerator pedal 20, To control the vehicle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be understood.

The present invention is applicable to a vehicle acceleration / deceleration control device capable of controlling acceleration and deceleration of a vehicle.

Claims

A brake position sensor (BPS) installed on the brake pedal for detecting the position of the brake pedal;

An accelerator pedal position sensor (APS) installed on the accelerator pedal for detecting the position of the accelerator pedal;

A first control unit for receiving the position information of the brake pedal and the accelerator pedal while communicating with the brake position sensor and the accelerator pedal position sensor in CAN communication to control acceleration and deceleration of the vehicle;

A second controller for interrupting the acceleration / deceleration of the vehicle when the failure of the first control unit or the position information of any one of the brake position sensor and the accelerator pedal position sensor is not transmitted to the first control unit; And

And an auxiliary operation portion provided in an area where the brake pedal is installed and operated by the second control portion to operate the brake pedal.
The method according to claim 1,

Wherein the auxiliary operation unit comprises:

A bracket including a coupling portion coupled to a region where the brake pedal is installed and a support portion formed to protrude from the coupling portion perpendicularly to the coupling portion;

An operating motor having a rotation shaft inserted into an end portion of the support portion at a predetermined position and positioned in a partial region of the brake pedal;

A pressure roller coupled to an end of the rotary bar extending in the radial direction of the rotary shaft at an end of the rotary shaft and pressing a part of the brake pedal according to the rotation of the rotary shaft; And

And an encoder installed in the operation motor for detecting a rotation angle of the rotation shaft,

Wherein the second control unit controls the acceleration / deceleration of the vehicle by comparing the rotation angle value of the rotation axis measured by the encoder with a preset value.
The method of claim 3,

The second control unit operates the acceleration pedal when the measured rotation angle value is less than a preset value and stops the operation of the accelerator pedal when the measured rotation angle value is greater than a predetermined value Of the vehicle.
The method according to claim 1,

Wherein the first control unit and the second control unit takeover control of the vehicle to the driver when the driver operates either the brake pedal or the accelerator pedal.