KR960000671A

KR960000671A - Rear wheel control system of anti-lock brake system and its method

Info

Publication number: KR960000671A
Application number: KR1019940013614A
Authority: KR
Inventors: 이충열
Original assignee: 전성원; 현대자동차 주식회사
Priority date: 1994-06-16
Filing date: 1994-06-16
Publication date: 1996-01-25

Abstract

자동차 후륜에 미끄러짐이 발생하여 ABS장치의 동작을 제어할 경우에 각 좌/우측 뒷바퀴의 솔레노이드 밸브로 인가되는 제어신호 사이에 소정의 시간지연이 발생할 수 있도록 하여 ABS 제어동작으로 발생하는 소음이나 진동이 증폭되지 않도록 하기 위한 앤티 락 브레이크 시스템의 후륜 제어장치 및 그 방법을 제공하기 위하여, 운전자의 동작에 의해 브레이크 페달이 동작되었는지를 판단하기 위한 브레이크 동작감지 스위치와; 자동차 좌/우측 뒷바퀴의 회전속도를 각각 감지하여 해당하는 신호를 출력하는 제1 및 제2휠 스피드 감지수단과; 상기 브레이크 동작감지 스위치와 제1 및 제2휠 스피드 감지수단에서 인가되는 신호를 이용하여, 브레이크 페달이 동작되는 도중 자동차 뒷바퀴에 미끄러짐이 발생한 상태로 판단되면 좌/우측 뒷바퀴의 브레이크 장치의 동작 제어신호 사이에 시간 지연이 발생할 수 있도록 하는 ABS 제어수단과; 상기 ABS 제어수단과 연결되어, 인가되는 제어신호에 따라 동작 상태가 가변되어 좌/우측 뒷바퀴의 브레이크 장치에 작용하는 브레이크 유압이 가변될 수 있도록 하는 제1 및 제2솔레노이드 밸브로 이루어져 있다.When slipping occurs in the rear wheel of the car to control the operation of the ABS device, a predetermined time delay may occur between the control signals applied to the solenoid valves of the left and right rear wheels, thereby preventing noise or vibration generated by the ABS control operation. In order to provide a rear wheel control device of the anti-lock brake system and a method for preventing amplification, a brake motion detection switch for determining whether the brake pedal is operated by the driver's operation; First and second wheel speed detection means for respectively sensing the rotational speeds of the rear wheels of the vehicle and outputting a corresponding signal; When it is determined that slippage occurs in the rear wheel of the vehicle while the brake pedal is operated by using the signals applied from the brake motion detection switch and the first and second wheel speed sensing means, the operation control signal of the brake device of the left / right rear wheel ABS control means for causing a time delay between; The first and second solenoid valves are connected to the ABS control means so that an operating state is changed according to an applied control signal so that the brake hydraulic pressure acting on the brake device of the left / right rear wheel can be varied.

Description

Rear wheel control system of anti-lock brake system and its method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 이 발명의 실시예에 따른 앤티 락 브레이크 시스템의 후륜 제어장치의 블럭도,1 is a block diagram of a rear wheel control apparatus of an anti-lock brake system according to an embodiment of the present invention;

제2도는 이 발명의 실시예에 따른 앤티 락 브레이크 시스템의 후륜 제어방법의 동작 순서도,2 is an operation flowchart of a rear wheel control method of an anti-lock brake system according to an embodiment of the present invention;

제3도의 (가)는 종래의 자동차 속도와 휠속도 및 액압의 변화 그래프,(A) of Fig. 3 is a graph of the change of the conventional vehicle speed, wheel speed and hydraulic pressure

제3도의 (나)는 이 발명의 실시예에 따른 자동차 속도와 휠속도 및 액압의 변화 그래프,Figure 3 (b) is a graph of the change in vehicle speed, wheel speed and hydraulic pressure according to an embodiment of the present invention,

제3도의 (다)는 종래와 이 발명의 실시예에 따른 진동ㆍ소음의 상태 그래프이다.3C is a state graph of vibration and noise according to the prior art and the embodiment of the present invention.

Claims

A brake motion detection switch for determining whether the brake pedal is operated by the driver's operation; First and second wheel speed sensing means for sensing a rotational speed of the rear wheels on the left and right sides of the vehicle and outputting a corresponding signal; When it is determined that slippage occurs in the rear wheel of the vehicle while the brake pedal is operated by using the signals applied from the brake motion detection switch and the first and second wheel speed sensing means, the operation control signal of the brake device of the left / right rear wheel ABS control means for causing a time delay between; It is connected to the ABS control means, characterized in that consisting of the first and second solenoid valve to change the operating state according to the control signal applied to the brake oil pressure acting on the brake device of the left and right rear wheels Rear wheel control of the anti-lock brake system.

When the brake pedal is operated using a signal applied through the brake pedal motion detection switch, determining whether slippage occurs in the rear wheel of the vehicle by using signals applied from the first and second wheel speed sensing means; Or when slippage occurs in the rear wheel of the right vehicle, setting control signals of the first and second solenoid valves corresponding to the slippage degree; Generating a predetermined time interval between the control signals of the determined first and second solenoid valves; Generating a predetermined time interval between the control signals of the first and second solenoid valves at the generated time intervals; And outputting corresponding control signals of the first and second solenoid valves at the generated time intervals.

The method of claim 2, wherein the sliding of the left and right rear wheels is determined using the driving speed of the vehicle and the wheel speeds of the left and right rear wheels determined according to signals applied from the first and second wheel speed sensing means. Rear wheel control method of anti-lock brake system.

※ Note: The disclosure is based on the initial application.