KR20030018594A - break system of vehicle - Google Patents

break system of vehicle Download PDF

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Publication number
KR20030018594A
KR20030018594A KR1020010052794A KR20010052794A KR20030018594A KR 20030018594 A KR20030018594 A KR 20030018594A KR 1020010052794 A KR1020010052794 A KR 1020010052794A KR 20010052794 A KR20010052794 A KR 20010052794A KR 20030018594 A KR20030018594 A KR 20030018594A
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KR
South Korea
Prior art keywords
vehicle
hydraulic pressure
brake
sensor
accumulator
Prior art date
Application number
KR1020010052794A
Other languages
Korean (ko)
Inventor
강동훈
Original Assignee
현대자동차주식회사
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Priority to KR1020010052794A priority Critical patent/KR20030018594A/en
Publication of KR20030018594A publication Critical patent/KR20030018594A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/24—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle inclination or change of direction, e.g. negotiating bends
    • B60T8/245—Longitudinal vehicle inclination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
    • B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

PURPOSE: A braking system for a vehicle is provided to prevent accidents and restrict a vehicle from rolling back by forcibly braking with auxiliary hydraulic pressure from an accumulator in parking on the inclined road. CONSTITUTION: A braking device for a vehicle comprises an ECU(Electronic Control Unit)(15) detecting absence or presence of a passenger and motion of a vehicle according to signals from a load sensor(11), a brake pedal sensor(12), a throttle position sensor(13) and a wheel speed sensor(14); a hydraulic pump(16) driven by the ECU; an accumulator(17) storing auxiliary hydraulic pressure to supply to a brake pipe(5) connected with a brake body(4) in driving the hydraulic pump; and a solenoid valve(19) installed in an auxiliary hydraulic pressure supply pipe(18) between the accumulator and the brake pipe and opened selectively according to the signal from the ECU. Accidents are prevented with restricting the vehicle from rolling back in parking on the inclined road.

Description

자동차의 제동장치{break system of vehicle}Brake system of vehicle

본 발명은 자동차의 제동장치에 관한 것으로, 특히 경사로상에 주차된 차량의 제동력이 감소되면서 움직일 때 차량의 움직임을 정지시켜 안전사고가 발생되는 것을 미리 예방할 수 있도록 된 자동차의 제동장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking apparatus for a vehicle, and more particularly, to a braking apparatus for a vehicle that can prevent the occurrence of a safety accident in advance by stopping the movement of the vehicle when the braking force of the vehicle parked on the slope is reduced.

일반적으로, 제동장치(break system)란 주행하는 자동차에 제동력을 발생시켜 자동차가 스스로 움직이지 않도록 하는 장치로서, 보통 브레이크페달의 조작에 따라 마스터실린더에서 발생/공급되는 유압에 의해 작동되게 된다.In general, a brake system is a device that generates a braking force on a driving vehicle so that the vehicle does not move by itself, and is normally operated by hydraulic pressure generated / supplied from the master cylinder according to the operation of the brake pedal.

즉, 자동차에는 도 1에 도시된 바와 같이 제동력을 발생시키기 위해 운전자가 발로 밟아주게 되는 브레이크페달(1)과, 이 브레이크페달(1)의 밟는 힘을 증폭 또는 확대시키도록 된 배력장치(2)와, 상기 브레이크페달(1)의 밟는 힘을 유압으로 전환시키도록 된 마스터실린더(3) 및, 이 마스터실린더(3)로부터 유압을 공급받아 실질적인 제동력을 발생시키도록 된 브레이크본체(4)등이 장착되어 있다.That is, the vehicle has a brake pedal 1 that the driver steps on to generate a braking force as shown in FIG. 1, and a power booster 2 that amplifies or enlarges the stepping force of the brake pedal 1. And a master cylinder 3 for converting the stepping force of the brake pedal 1 into hydraulic pressure, and a brake body 4 for receiving a hydraulic pressure from the master cylinder 3 to generate a substantial braking force. It is installed.

따라서, 운전자가 브레이크페달(1)을 밟아주게 되면 페달의 밟는 힘이 마스터실린더(3)에 의해 유압으로 전환되면서 브레이크파이프(5)와 오일분배기(6) 및 브레이크호스(7)등을 통해 브레이크본체(4)로 공급되게 되고, 이 브레이크본체(4)로 공급된 유압은 브레이크슈 또는 브레이크패드를 드럼이나 디스크로 압착시킴으로써 그 마찰력에 의한 제동력을 발생시켜 주행중인 자동차가 정지하게 된다.Therefore, when the driver presses the brake pedal 1, the pedaling force is converted into hydraulic pressure by the master cylinder 3 and brakes through the brake pipe 5, the oil distributor 6, the brake hose 7, and the like. The hydraulic pressure supplied to the main body 4 is applied to the brake main body 4 by pressing the brake shoe or the brake pad with a drum or a disk to generate a braking force due to the frictional force, thereby stopping the vehicle being driven.

그리고, 주행중인 자동차의 정지후 운전자가 주차브레이크레버(8)를 조작하여 제동력을 발생시킴으로써 차량의 움직임을 완전히 정지시킬 수 있게 되며, 이로 인해 차량은 주차되게 된다.In addition, after the driving of the vehicle is stopped, the driver operates the parking brake lever 8 to generate a braking force to completely stop the movement of the vehicle, thereby parking the vehicle.

그러나, 주행중인 자동차를 경사로상에서 정지시킨 후 운전자가 주차브레이크레버(8)를 완전하게 조작하지 않은 상태에서 차량을 경사로상에 주차시켜 놓게 되면, 시간이 경과됨에 따라 제동력이 점차적으로 감소되면서 경사로상에 주차된 차량이 서서히 움직이게 되고, 이렇게 경사로를 굴러 내려가는 차량에 의해 인명이나 재산에 커다란 피해를 주는 안전사고가 발생된다는 문제점이 있었다.However, if the driver parks the vehicle on the slope without stopping the parking brake lever 8 completely after stopping the driving car on the slope, the braking force gradually decreases as time passes, There is a problem that the vehicle parked in the slow moving, safety accidents that cause great damage to human life or property by the vehicle going down the slope.

즉, 주행중인 차량을 운전자가 브레이크페달(1)을 이용해 정지시키게 되면 브레이크본체(4)의 구성품인 마찰재가 열을 받아 부피가 팽창하면서 마찰계수가 증가하게 되는데, 만약 운전자가 경사로상에서 차량을 정지시킨 후 브레이크레버(8)를 완전하게 조작하지 않은 상태에서 주차시켜 놓게 되면, 시간이 경과됨에 따라 마찰재의 열이 식으면서 부피가 점차적으로 줄어들게 되고, 이로 인해 마찰계수가 점차적으로 감소되면서 경사로상에 주차된 차량이 서서히 움직이게 되며, 결국에는 차량이 경사로를 굴러 내려가면서 안전사고를 유발시키게 된다는 문제점이 있었다.That is, when the driver stops the vehicle using the brake pedal 1, the friction material, which is a component of the brake body 4, receives heat and expands its volume, thereby increasing the coefficient of friction. If the brake lever 8 is parked in a state where the brake lever 8 is not completely operated, the volume of the friction material gradually decreases as time passes, and as a result, the coefficient of friction gradually decreases, thus reducing the friction lever. The parked vehicle is slowly moving, and eventually there is a problem that the vehicle rolls down the slope, causing a safety accident.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 탑승자없이 경사로상에 주차된 차량이 경사로를 따라 움직일 때 차량의 움직임을 강제적으로 정지시켜 차량이 굴러 내려가는 것을 미리 예방함은 물론 이로 인해 인적 및 물적으로 피해를 주는 안전사고가 발생되는 것도 미리 예방할 수 있도록 된 자동차의 제동장치를 제공함에 그 목적이 있다.Accordingly, the present invention is devised to solve the above problems, and forcibly stops the movement of the vehicle when the vehicle parked on the slope without the occupant moves along the slope, thereby preventing the vehicle from rolling down in advance. It is an object of the present invention to provide a brake system for a vehicle that can prevent a safety accident that causes human and physical damage in advance.

상기와 같은 목적을 달성하기 위한 본 발명의 제동장치는, 하중센서와 브레이크페달센서와 스로틀포지션센서 및 휠스피드센서로부터 검출된 신호에 의해 운전자의 탑승유무를 판별하면서 차량의 움직임을 판별하도록 된 전자제어유니트와, 이 전자제어유니트의 제어에 의해 통전되면서 구동되는 유압펌프와, 이 유압펌프의 구동에 따라 브레이크본체와 연결되는 브레이크파이프로 유압을 공급하기 위해 보조유압을 저장하도록 된 어큐뮬레이터와, 상기 어큐뮬레이터와 브레이크파이프를 연결하는 보조유압공급파이프상에 설치되어 상기 전자제어유니트의 신호에 의해 선택적으로 개방되는 솔레노이드밸브를 포함하여 구성되는 것을 특징으로 한다.The braking device of the present invention for achieving the above object, the electronic device to determine the movement of the vehicle while determining the presence of the driver by the signal detected from the load sensor, the brake pedal sensor, the throttle position sensor and the wheel speed sensor A control unit, a hydraulic pump driven while being energized by the control of the electronic control unit, an accumulator configured to store auxiliary hydraulic pressure for supplying hydraulic pressure to a brake pipe connected to the brake body according to the operation of the hydraulic pump; And a solenoid valve installed on an auxiliary hydraulic supply pipe connecting the accumulator and the brake pipe and selectively opened by a signal of the electronic control unit.

도 1은 일반적으로 사용되는 차량의 제동장치를 설명하기 위한 사시도,1 is a perspective view for explaining a brake device of a vehicle generally used;

도 2는 본 발명에 따른 제동장치를 설명하기 위한 개략적인 구성도이다.2 is a schematic configuration diagram illustrating a braking apparatus according to the present invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1 - 브레이크페달 4 - 브레이크본체1-Brake pedal 4-Brake body

5 - 브레이크파이프 11 - 하중센서5-Brake Pipe 11-Load Sensor

12 - 브레이크페달센서 13 - 스로틀포지션센서12-Brake Pedal Sensor 13-Throttle Position Sensor

14 - 휠스피드센서 15 - 전자제어유니트(ECU)14-Wheel Speed Sensor 15-Electronic Control Unit (ECU)

16 - 유압펌프 17 - 어큐뮬레이터16-Hydraulic Pump 17-Accumulator

18 - 보조유압공급파이프 19 - 솔레노이드밸브18-Auxiliary Hydraulic Supply Pipe 19-Solenoid Valve

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2본 발명에 따른 제동장치를 설명하기 위한 개략적인 구성도로서, 종래구조와 동일한 부위에는 동일한 참조부호를 붙이면서 설명하기로 한다.FIG. 2 is a schematic configuration diagram for explaining a braking device according to the present invention, and the same parts as in the conventional structure will be described with the same reference numerals.

본 발명에 따른 제동장치(break system)는 도 2에 도시된 바와 같이, 제동력을 발생시키기 위해 운전자가 발로 밟아주게 되는 브레이크페달(1)과, 이 브레이크페달(1)의 밟는 힘을 증폭 또는 확대시키도록 된 배력장치(2)와, 상기 브레이크페달(1)의 밟는 힘을 유압으로 전환시키도록 된 마스터실린더(3) 및, 이 마스터실린더(3)로부터 유압을 공급받아 실질적인 제동력을 발생시키도록 된 브레이크본체(4)를 기본적으로 구성하고 있다.As shown in FIG. 2, the brake system according to the present invention amplifies or enlarges a brake pedal 1 to be stepped on by a driver to generate a braking force and a stepping force of the brake pedal 1. The hydraulic power supply device 2, the master cylinder 3 for converting the stepping force of the brake pedal 1 into hydraulic pressure, and the hydraulic pressure supplied from the master cylinder 3 to generate a substantial braking force. The brake body 4 is basically constituted.

또한, 본 발명에 따른 제동장치는 상기한 구성에다 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 운전자의 탑승유무를 판별하면서 차량의 움직임을 판별하도록 된 전자제어유니트(15;ECU)와, 이 전자제어유니트(15)의 제어에 의해 통전되면서 구동되는 유압펌프(16)와, 이 유압펌프(16)의 구동에 따라 브레이크본체(4)와 연결되는 브레이크파이프(5)로 유압을 공급하기 위해 보조유압을 저장하도록 된 어큐뮬레이터(17)와, 상기 어큐뮬레이터(17)와 브레이크파이프(5)를 연결하는 보조유압공급파이프(18)상에 설치되어 상기 전자제어유니트(15)의 신호에 의해 선택적으로 개방되는 솔레노이드밸브(19)를 포함하여 구성되도록 되어 있다.In addition, the braking device according to the present invention is in accordance with the above-described configuration by the signal detected from the load sensor 11, the brake pedal sensor 12, the throttle position sensor 13 and the wheel speed sensor (14) The electronic control unit 15 (ECU) configured to discriminate the movement of the vehicle while discriminating, the hydraulic pump 16 driven while being energized by the control of the electronic control unit 15, and the driving of the hydraulic pump 16. Accordingly, an accumulator 17 configured to store auxiliary hydraulic pressure to supply hydraulic pressure to the brake pipe 5 connected to the brake body 4, and an auxiliary hydraulic pressure supply pipe connecting the accumulator 17 and the brake pipe 5. It is configured to include a solenoid valve 19 provided on (18) and selectively opened by the signal of the electronic control unit (15).

따라서, 운전자가 주행중인 차량의 브레이크페달(1)을 밟아주게 되면 페달의 밟는 힘이 마스터실린더(3)에 의해 유압으로 전환되면서 브레이크파이프(5)와 오일분배기(6) 및 브레이크호스(7)등을 통해 브레이크본체(4)로 공급되게 되고, 이 브레이크본체(4)로 공급된 유압은 브레이크슈 또는 브레이크패드를 드럼이나 디스크로 압착시킴으로써 그 마찰력에 의한 제동력을 발생시켜 주행중인 자동차가 정지하게 된다.Therefore, when the driver steps on the brake pedal 1 of the vehicle being driven, the pedaling force of the pedal is switched to hydraulic pressure by the master cylinder 3 while the brake pipe 5, the oil distributor 6, and the brake hose 7 are pressed. Or the like, and the hydraulic pressure supplied to the brake body 4 generates a braking force by the frictional force by pressing the brake shoe or the brake pad to the drum or the disk to stop the driving vehicle. do.

한편, 상기 전자제어유니트(15)가 상기 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 주행중 정상적인 제동상태라고 판별하게 되면, 상기 유압펌프(16)는 전자제어유니트(15)의 신호에 의해 통전되면서 구동되게 되고, 이로 인해 상기 어큐뮬레이터(17)에는 보조유압이 저장되게 된다.On the other hand, the electronic control unit 15 is determined by the signals detected from the load sensor 11, the brake pedal sensor 12, the throttle position sensor 13 and the wheel speed sensor 14 to determine the normal braking state while driving. When the hydraulic pump 16 is energized by the signal of the electronic control unit 15, the hydraulic pressure is stored in the accumulator 17.

이때, 상기 전자제어유니트(15)가 어큐뮬레이터(17)에 저장된 보조유압의 양이 규정치 이상이라고 판별하게 되면, 상기 전자제어유니트(15)가 상기 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 주행중 정상적인 제동상태라고 판별하게 되더라도 상기 유압펌프(16)를 구동시키지 않게 되며, 이로 인해 상기 어큐뮬레이터(17)에는 새로운 보조유압의 저장이 방지되게 된다.At this time, when the electronic control unit 15 determines that the amount of the auxiliary hydraulic pressure stored in the accumulator 17 is greater than or equal to the prescribed value, the electronic control unit 15 is connected to the load sensor 11 and the brake pedal sensor 12. Even if it is determined by the signals detected from the throttle position sensor 13 and the wheel speed sensor 14 that it is a normal braking state while driving, the hydraulic pump 16 is not driven, which causes the accumulator 17 to have a new auxiliary hydraulic pressure. Will be prevented from being stored.

그리고, 주행중인 자동차에 제동력을 가해 정지시킨 후 운전자는 주차브레이크레버(8)를 조작하여 주차브레이크에 해당되는 제동력을 발생시키게 되며, 이로 인해 차량의 움직임이 완전히 정지되면서 주차되게 된다.Then, after stopping by applying a braking force to the driving car, the driver operates the parking brake lever 8 to generate a braking force corresponding to the parking brake, thereby parking the vehicle while the movement of the vehicle is completely stopped.

한편, 운전자가 주행중인 자동차를 경사로상에서 정지시킨 후 주차브레이크레버(8)를 완전하게 조작하지 않은 상태로 차량을 경사로상에 주차시켜 놓게 되면, 이 차량은 시간이 경과됨에 따라 마찰재의 열이 식으면서 부피가 점차적으로 줄어들게 되고, 이로 인해 마찰계수가 점차적으로 감소되면서 경사로를 따라 서서히 움직이게 된다.On the other hand, if the driver parks the vehicle on the incline without stopping the driving brake on the incline and does not operate the parking brake lever 8 completely, the vehicle heats down the friction material as time passes. The volume gradually decreases, which causes the friction coefficient to gradually decrease along the ramp.

이와 같이, 경사로상에 주차된 차량이 경사로를 따라 움직이게 되면, 상기 전자제어유니트(15)는 상기 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 운전자의 탑승유무를 판별하면서 차량의 움직임유무를 판별하게 된다.As such, when the vehicle parked on the slope moves along the slope, the electronic control unit 15 includes the load sensor 11, the brake pedal sensor 12, the throttle position sensor 13, and the wheel speed sensor 14. The presence or absence of the driver's boarding is determined by the signal detected from the vehicle.

이때, 상기 전자제어유니트(15)에 의해 차량에 운전자가 탑승하지 않은 상태이면서 차량이 움직였다고 판별하게 되면, 상기 전자제어유니트(15)는 유압펌프(16)를 통전시켜 구동시키게 되고, 이와 동시에 보조유압공급파이프(18)상에 장착된 솔레노이드밸브(19)를 개방시키게 된다.At this time, when the electronic control unit 15 determines that the vehicle is moved while the driver is not in the vehicle, the electronic control unit 15 energizes and drives the hydraulic pump 16, and at the same time The solenoid valve 19 mounted on the auxiliary hydraulic supply pipe 18 is opened.

여기서, 상기 전자제어유니트(15)는 차량의 휠이 1초 동안 두바퀴 이상으로 회전하게 되면 차량이 움직이는 것으로 판별하게 된다.Here, the electronic control unit 15 determines that the vehicle moves when the wheel of the vehicle rotates for two seconds or more for one second.

그리고, 상기 유압펌프(16)가 구동되면서 솔레노이드밸브(19)가 개방되면, 상기 어큐뮬레이터(17)에 저장된 보조유압은 보조유압공급파이프(18)를 통해 브레이크파이프(5)로 유입되게 되고, 이 브레이크파이프(5)로 유입된 유압은 브레이크호스(7)를 통해 브레이크본체(4)로 유입되어 보조제동력을 발생시키게 되며, 이로 인해 경사로를 따라 이동되던 차량은 어큐뮬레이터(17)를 통해 공급되는 보조제동력에 의해 움직임이 멈춰지게 된다.Then, when the solenoid valve 19 is opened while the hydraulic pump 16 is driven, the auxiliary hydraulic pressure stored in the accumulator 17 is introduced into the brake pipe 5 through the auxiliary hydraulic pressure supply pipe 18. The hydraulic pressure introduced into the brake pipe (5) is introduced into the brake body (4) through the brake hose (7) to generate an auxiliary braking force, whereby the vehicle moved along the ramp is supplied through the accumulator (17) The movement is stopped by the power.

이와 같이, 경사로상에 주차된 차량이 제동력의 감소로 인해 경사로를 따라 이동될 때 본 발명에 따른 어큐뮬레이터(17)를 통해 새로운 보조유압이 공급되면서 제동력이 발생되게 됨으로써, 차량의 움직임이 새롭게 발생되는 보조제동력에 의해 강제적으로 정지되게 되며, 이로 인해 경사로를 따라 차량이 굴러 내려가는 것을 미리 예방할 수 있게 된다.As such, when the vehicle parked on the ramp is moved along the ramp due to the reduction of the braking force, the braking force is generated while the new auxiliary hydraulic pressure is supplied through the accumulator 17 according to the present invention, whereby the movement of the vehicle is newly generated. It is forcibly stopped by the auxiliary braking force, which prevents the vehicle from rolling down the ramp in advance.

그리고, 경사로상에 주차된 차량의 이동이 예방되면 인적 또는 물적으로 피해를 주는 안전사고도 미리 예방할 수 있게 되며, 이러한 이유들로 인해 소비자의 선호도가 높아지면서 상품성도 그만큼 향상되게 된다.In addition, when the movement of the vehicle parked on the slope is prevented, it is possible to prevent safety accidents that cause human or physical damage in advance. For these reasons, the consumer's preference increases and the merchandise is also improved.

이상 설명한 바와 같이 본 발명에 의하면, 경사로상에 주차된 차량이 제동력의 감소로 인해 경사로를 따라 이동될 때 어큐뮬레이터를 통해 공급되는 새로운 보조유압에 의해 강제적으로 제동되게 됨으로써, 경사로상에 주차된 차량이 경사로를 따라 굴러 내려가는 것을 미리 예방할 수 있게 되어 안전사고를 미리 예방할 수 있게 될 뿐만 아니라 이로 인해 소비자의 선호도가 높아지면서 상품성도 그만큼 향상되는 효과가 있게 된다.As described above, according to the present invention, when the vehicle parked on the ramp is forcibly braked by the new auxiliary hydraulic pressure supplied through the accumulator when the vehicle parked on the ramp is moved along the ramp due to the decrease in braking force, the vehicle parked on the ramp is It is possible to prevent rolling down the slope in advance to prevent safety accidents in advance, thereby increasing the consumer's preference and improving the merchandise.

Claims (5)

하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 운전자의 탑승유무를 판별하면서 차량의 움직임을 판별하도록 된 전자제어유니트(15;ECU)와, 이 전자제어유니트(15)의 제어에 의해 통전되면서 구동되는 유압펌프(16)와, 이 유압펌프(16)의 구동에 따라 브레이크본체(4)와 연결되는 브레이크파이프(5)로 유압을 공급하기 위해 보조유압을 저장하도록 된 어큐뮬레이터(17)와, 상기 어큐뮬레이터(17)와 브레이크파이프(5)를 연결하는 보조유압공급파이프(18)상에 설치되어 상기 전자제어유니트(15)의 신호에 의해 선택적으로 개방되는 솔레노이드밸브(19)를 포함하여 구성되는 자동차의 제동장치.An electronic control unit configured to discriminate the movement of the vehicle while discriminating whether the driver rides or not based on signals detected from the load sensor 11, the brake pedal sensor 12, the throttle position sensor 13, and the wheel speed sensor 14 ( 15, an ECU, a hydraulic pump 16 driven while being energized by the control of the electronic control unit 15, and a brake pipe 5 connected to the brake body 4 in accordance with the driving of the hydraulic pump 16; Is installed on the accumulator 17 configured to store the auxiliary hydraulic pressure to supply the hydraulic pressure to the auxiliary hydraulic pressure and the auxiliary hydraulic pressure supply pipe 18 connecting the accumulator 17 and the brake pipe 5 to the electronic control unit 15. Braking apparatus for a vehicle comprising a solenoid valve (19) that is selectively opened by the signal of). 제 1항에 있어서, 상기 전자제어유니트(15)가 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 주행중 정상적인 제동상태라고 판별하게 되면 유압펌프(16)를 구동시켜 어큐뮬레이터(17)에 보조유압을 저장시키도록 된 것을 특징으로 하는 자동차의 제동장치.2. The braking state according to claim 1, wherein the electronic control unit (15) is normally braked while driving by signals detected from the load sensor (11), the brake pedal sensor (12), the throttle position sensor (13), and the wheel speed sensor (14). If it is determined that the hydraulic pump 16 is driven to store the auxiliary hydraulic pressure in the accumulator (17) characterized in that the brake device of the vehicle. 제 1항에 있어서, 상기 전자제어유니트(15)가 어큐뮬레이터(17)에 저장된 보조유압의 양이 규정치 이상이라고 판별하게 되면 상기 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 주행중 정상적인 제동상태라고 판별하게 되더라도 상기 어큐뮬레이터(17)에 새로운 보조유압이 저장되는 것이 방지되도록 유압펌프(16)를 구동시키지 않는 것을 특징으로 하는 자동차의 제동장치.The load sensor 11, the brake pedal sensor 12, and the throttle position sensor 13 according to claim 1, wherein the electronic control unit 15 determines that the amount of auxiliary hydraulic pressure stored in the accumulator 17 is greater than or equal to a prescribed value. And the hydraulic pump 16 is not driven so that the new auxiliary hydraulic pressure is prevented from being stored in the accumulator 17 even if it is determined that the vehicle is in a normal braking state by the signal detected from the wheel speed sensor 14). Braking system of automobiles. 제 1항에 있어서, 상기 전자제어유니트(15)가 상기 하중센서(11)와 브레이크페달센서(12)와 스로틀포지션센서(13) 및 휠스피드센서(14)로부터 검출된 신호에 의해 운전자가 탑승하지 않은 상태이면서 차량이 움직인다고 판별하게 되면 상기 유압펌프(16)를 구동시키고 솔레노이드밸브(19)를 개방시켜 어큐뮬레이터(17)에 저장된 보조유압으로 브레이크본체(4)에 제동력을 발생시키도록 된 것을 특징으로 하는 자동차의 제동장치.The driver of claim 1, wherein the electronic control unit 15 is driven by a signal detected from the load sensor 11, the brake pedal sensor 12, the throttle position sensor 13, and the wheel speed sensor 14. When it is determined that the vehicle is moving while not in a state, the hydraulic pump 16 is driven and the solenoid valve 19 is opened to generate a braking force to the brake body 4 by the auxiliary hydraulic pressure stored in the accumulator 17. Braking system for cars. 제 4항에 있어서, 상기 전자제어유니트(15)가 차량의 휠이 1초 동안 두바퀴 이상으로 회전되면 차량이 움직이는 것으로 판별하는 것을 특징으로 하는 자동차의 제동장치.5. The braking device according to claim 4, wherein the electronic control unit (15) determines that the vehicle moves when the wheel of the vehicle is rotated for two seconds or more for one second.
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Cited By (2)

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KR20180133132A (en) * 2017-06-05 2018-12-13 주식회사 만도 Vehicle control apparatus and vehicle control method
CN110239497A (en) * 2019-07-02 2019-09-17 平阳星嘉智能科技有限公司 Electrically controlled brake system and preparatory emergency braking system

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KR970061951U (en) * 1996-05-14 1997-12-10 Safety device when parking the ramp of a vehicle
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Publication number Priority date Publication date Assignee Title
KR20180133132A (en) * 2017-06-05 2018-12-13 주식회사 만도 Vehicle control apparatus and vehicle control method
CN110239497A (en) * 2019-07-02 2019-09-17 平阳星嘉智能科技有限公司 Electrically controlled brake system and preparatory emergency braking system

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