KR20020055100A - An auto parking brake system - Google Patents

An auto parking brake system Download PDF

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Publication number
KR20020055100A
KR20020055100A KR1020000084456A KR20000084456A KR20020055100A KR 20020055100 A KR20020055100 A KR 20020055100A KR 1020000084456 A KR1020000084456 A KR 1020000084456A KR 20000084456 A KR20000084456 A KR 20000084456A KR 20020055100 A KR20020055100 A KR 20020055100A
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KR
South Korea
Prior art keywords
state
parking
sensor
controller
brake system
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KR1020000084456A
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Korean (ko)
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KR100383999B1 (en
Inventor
서유찬
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이계안
현대자동차주식회사
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Priority to KR10-2000-0084456A priority Critical patent/KR100383999B1/en
Publication of KR20020055100A publication Critical patent/KR20020055100A/en
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Publication of KR100383999B1 publication Critical patent/KR100383999B1/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
    • 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
    • B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
    • B60T2201/10—Automatic or semi-automatic parking aid systems
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/303—Speed sensors
    • B60Y2400/3032—Wheel speed sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/81—Braking systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/90—Driver alarms

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

Abstract

PURPOSE: Automatic parking brake system is provided to automatically change between a parking state and a traveling state and to actively operate by simplifying structure. CONSTITUTION: Automatic parking brake system comprises a master cylinder(1) supplying pressure oil into a proportioning valve(3) through passages; a solenoid valve(5) changing between an interlocking state and an isolating state; a bypass pipe(9) connecting the master cylinder to an oil reservoir(7); a check valve(11) mounted on the bypass pipe; a controller(13) controlling the solenoid valve; a shift sensor(15) detecting operational state of a shift lever by being installed on the controller; an engine sensor(17) detecting actuating state of the engine; a pedal sensor(19) sensing an operational state of a brake pedal; a wheel speed sensor(21) detecting rotational speed of a wheel; a manual mode switch unit having a manual mode switch(23) and a parking switch(25); and a sound generator(27). Thereby, the automatic brake system automatically changes between the parking state and a traveling state.

Description

자동 주차브레이크 시스템{AN AUTO PARKING BRAKE SYSTEM}Automatic parking brake system {AN AUTO PARKING BRAKE SYSTEM}

본 발명은 자동차의 주차브레이크 장치에 관한 것으로서, 보다 상세하게는 차량의 주행상태에 따라서 자동적으로 주차상태와 주행상태를 절환할 수 있는 자동주차브레이크 시스템에 관한 것이다.The present invention relates to a parking brake apparatus of an automobile, and more particularly, to an automatic parking brake system capable of automatically switching a parking state and a driving state according to a driving state of a vehicle.

종래의 주차브레이크 장치의 개념은 도 1에 도시된 바와 같이 운전자가 조작하는 족동식 파킹레버(100) 또는 수동식 파킹레버(102)가 설치되어 있고, 상기 파킹레버(100,102)에 연결된 케이블이 당겨지거나 놓아지는 것에 의해 후륜의 브레이크어셈블리(104)가 작동되는 상태가 절환되면서 주차상태와 주행상태를 절환하도록 되어 있다.The concept of a conventional parking brake device is provided with a foot-mounted parking lever 100 or a manual parking lever 102 that the driver operates as shown in Figure 1, the cable connected to the parking lever (100, 102) is pulled or By releasing, the state in which the brake assembly 104 of the rear wheel is operated is switched so as to switch the parking state and the driving state.

물론, 상기 족동식 파킹레버(100)가 설치된 고급차종의 경우에는 변속레버(106)가 P 레인지에서 빠져나오면 주차브레이크 작동상태를 자동적으로 해제하도록 하는 장치를 구비하고 있다.Of course, in the case of the high-end car model is installed with the foot-type parking lever 100 is provided with a device to automatically release the parking brake operating state when the shift lever 106 is out of the P range.

따라서, 상기한 바와 같은 구조의 주차브레이크 장치는 운전자의 조작을 수용하는 파킹레버(100,102)로부터 브레이크어셈블리(104)에 이르기까지 많은 부품이 연결되어 있으며 특히, 케이블(108)에 의해 운전자의 조작력이 전달되도록 되어 있어서, 차량의 제작시에는 이들 부품들의 누적공차를 흡수하기 위한 조정절차가 필수적으로 수반되어야 하는 바, 예컨대, '풋브레이크를 약 10회 이상 밟은 후 파킹레버를 20Kg의 힘으로 당겼을 때 5클릭에서 정지하도록 조절하는 것' 등이다.Therefore, the parking brake device of the structure described above is connected to a number of parts from the parking lever (100, 102) to the brake assembly 104 to accommodate the driver's operation, in particular, the driver's operating force by the cable 108 As the vehicle is manufactured, adjustment procedures for absorbing cumulative tolerances of these parts must be accompanied when manufacturing the vehicle, for example, 'If the foot brake is pressed about 10 times or more, the parking lever is pulled with a force of 20 kg. To stop at 5 clicks.

그러나, 상기한 바와 같은 조정절차는 차량 양산체제의 공정특성에 의해 설계의도 그대로의 조정이 용이하게 이루어지지 못하며, 이에 따라 변칙적인 작업을 함으로써, 과조임에 의한 차량끌림이나 덜조임에 의한 파킹레버의 과다상승 및 래틀소음 등이 생산라인의 문제로 발생하며, 차량 출고후 시간이 경과함에 따라 파킹케이블의 자리잡기 등으로 인한 파킹레버과다상승, 경사로 조작력 과다 등의 문제가 발생하고 있다.However, the adjustment procedure as described above is not easily adjusted according to the design intention by the process characteristics of the vehicle mass production system, according to the anomalous work, the parking due to the drag or less tightening of the vehicle due to over tightening The excessive rise of the lever and the rattle noise occurs as a problem in the production line, and as the time passes after the vehicle leaves, there are problems such as excessive parking lever and excessive operation force due to the positioning of the parking cable.

또한, 운전자의 발이 위치한 부분이나 손이 위치하는 부분으로부터 차량의 후방에 이르기까지 전체적인 레이아웃이 복잡하여 작업성 및 원활한 작동성을 확보하기에는 곤란한 구조적인 문제점을 안고 있으며, 족동식 브레이크의 경우 그 해제시에 "텅"하는 작동소음이 발생하고 그 해제 메커니즘이 비교적 복잡하게 구성되어 있다.In addition, the overall layout is complicated from the position of the driver's foot or the hand to the rear of the vehicle, which has a structural problem that is difficult to ensure workability and smooth operability. Noise is generated and the release mechanism is relatively complex.

이에 본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 차량의 주행상태에 따라 자동적으로 주차상태와 주행상태를 절환할 수 있도록 함은 물론, 종래 다수의 부품 사용에 의한 누적공차 등에 따른 조정절차를 배제하고 간단한 구성으로 원활한 작동상태를 확보할 수 있도록 한 자동 주차브레이크 시스템을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the problems described above, it is possible to automatically switch the parking state and the driving state in accordance with the driving state of the vehicle, as well as the cumulative tolerance by using a plurality of conventional parts The object of the present invention is to provide an automatic parking brake system that eliminates the adjustment procedure and ensures a smooth operation with a simple configuration.

도 1은 일반적인 자동차의 주차브레이크 장치의 개념을 도시한 개념도,1 is a conceptual diagram showing the concept of a parking brake device of a typical car,

도 2는 본 발명에 의한 자동 주차브레이크 시스템을 도시한 구성도,2 is a block diagram showing an automatic parking brake system according to the present invention,

도 3은 도 2의 본 발명 실시예의 작동순서를 도시한 순서도이다.3 is a flow chart showing the operation procedure of the embodiment of the present invention of FIG.

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

1: 마스터실린더3: 프로포셔닝밸브1: master cylinder 3: proportioning valve

5: 솔레노이드밸브7: 오일리저버5: solenoid valve 7: oil reservoir

9: 바이패스관11: 체크밸브9: bypass pipe 11: check valve

13: 컨트롤러15: 변속센서13: controller 15: shifting sensor

17: 엔진센서19: 페달센서17: engine sensor 19: pedal sensor

21: 휠속도센서23: 수동모드스위치21: Wheel speed sensor 23: Manual mode switch

25: 주차스위치27: 음성발생장치25: parking switch 27: voice generator

상기한 바와 같은 목적을 달성하기 위한 본 발명 자동 주차브레이크 시스템은 유압식 브레이크장치를 채택한 차량에 있어서; 후륜의 브레이크어셈블리로 공급되는 유압을 연통시키는 상태와 차단시키는 상태를 절환할 수 있도록 설치된 파킹밸브수단과; 마스터실린더와 오일리저버를 연통시키는 바이패스수단과; 변속레버의 작동상태를 감지하는 변속센서와, 엔진 작동상태를 감지하는 엔진센서, 브레이크페달의 작동상태를 감지하는 페달센서 및 휠의 회전속도를 측정하는 휠속도센서와; 상기 변속센서, 엔진센서, 페달센서 및 휠속도센서의 신호를 받아 상기 파킹밸브수단을 제어하고 주차등을 점등하는 컨트롤러와, 상기 컨트롤러에 연결되어 컨트롤러의 지시에 따라 적절한 경보가 운전자에게 전달되도록 하는 경보수단으로 구성된 것을 특징으로 한다.The automatic parking brake system of the present invention for achieving the above object is in a vehicle employing a hydraulic brake device; A parking valve means installed to switch a state of communicating hydraulic pressure supplied to the brake assembly of the rear wheel and a state of blocking the hydraulic pressure; Bypass means for communicating the master cylinder with the oil reservoir; A shift sensor detecting an operating state of a shift lever, an engine sensor detecting an engine operating state, a pedal sensor detecting an operating state of a brake pedal, and a wheel speed sensor measuring a rotation speed of a wheel; A controller that controls the parking valve means and receives a parking light by receiving the signals of the shift sensor, the engine sensor, the pedal sensor, and the wheel speed sensor, and is connected to the controller so that an appropriate alarm is transmitted to the driver according to the controller's instructions. Characterized in that configured as an alarm means.

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 2는 본 발명에 의한 차량의 자동 주차브레이크 시스템을 도시한 것으로서, 마스터실린더(1)는 탠덤형을 사용하여 두 개의 유로를 통해 프로포셔닝밸브(3)에 압유를 제공하도록 되어 있고, 상기 프로포셔닝밸브(3)를 통해 전방의 휠(FR,FL)쪽으로 브레이크압이 전달됨은 물론 후륜의 휠(RR,RL)쪽으로 차량의 중량에 따라 적절한 브레이크압이 전달되도록 되어 있다.2 shows an automatic parking brake system for a vehicle according to the present invention, wherein the master cylinder 1 is configured to provide pressure oil to the proportioning valve 3 through two flow paths using a tandem type. The brake pressure is transmitted to the front wheels FR and FL through the proportioning valve 3, and the appropriate brake pressure is transmitted to the wheels RR and RL of the rear wheel according to the weight of the vehicle.

상기 후륜의 브레이크어셈블리로 유압을 공급하는 유압라인상에는 연통시키는 상태와 차단시키는 상태를 절환할 수 있도록 설치된 파킹밸브수단을 설치하였는 바, 상기 파킹밸브수단으로 본 실시예에서는 솔레노이드밸브(5)를 사용하였다.On the hydraulic line for supplying the hydraulic pressure to the brake assembly of the rear wheel, a parking valve means installed to switch the state of communication and the state of blocking is installed. In the present embodiment, the solenoid valve 5 is used as the parking valve means. It was.

또한, 상기 마스터실린더(1)와 오일리저버(7)의 사이에는 오일압을 연통시키는 바이패스수단이 구비된 바, 본 실시예에서는 상기 오일리저버(7)와 마스터실린더(1)를 연통시키도록 별도로 설치된 바이패스관(9)이 마스터실린더(1)에서 상기 프로포셔닝밸브(3)로 압유를 공급하는 유압라인에 연결되고, 상기 바이패스관(9)에는 오일리저버(7)로부터 마스터실린더(1)를 향하는 방향만의 오일 유동을 허용하는 체크밸브(11)를 구비하여 구성하였다.In addition, a bypass means for communicating oil pressure is provided between the master cylinder 1 and the oil reservoir 7. In this embodiment, the oil reservoir 7 and the master cylinder 1 are communicated with each other. Separately installed bypass pipe (9) is connected to the hydraulic line for supplying pressure oil from the master cylinder (1) to the proportioning valve (3), the bypass pipe (9) from the oil reservoir (7) to the master cylinder It was comprised by the check valve 11 which allows oil flow only in the direction toward (1).

상기 파킹밸브수단인 솔레노이드밸브(5)는 컨트롤러(13)에 의해 제어되는 바, 상기 컨트롤러(13)는 변속레버의 작동상태를 감지하는 변속센서(15)와, 엔진작동상태를 감지하는 엔진센서(17), 브레이크페달의 작동상태를 감지하는 페달센서(19) 및 휠의 회전속도를 측정하는 휠속도센서(21)의 신호를 받아 상기 솔레노이드밸브(5)를 제어하도록 구성되어 있으며, 운전자의 수동조작이 가능하도록 하는 수동모드스위치수단이 구비되어 있는바, 이는 수동모드스위치(23)와 주차스위치(25)로 구성되어 있다.The solenoid valve 5, which is the parking valve means, is controlled by the controller 13. The controller 13 includes a shift sensor 15 for detecting an operating state of the shift lever, and an engine sensor for detecting an engine operating state. (17), the pedal sensor 19 for detecting the operation state of the brake pedal and the wheel speed sensor 21 for receiving the signal of the wheel speed sensor 21 is configured to control the solenoid valve (5), the driver's Manual mode switch means for enabling manual operation is provided, which consists of a manual mode switch 23 and a parking switch 25.

또한, 상기 컨트롤러(13)에 의해 조작되는 경보수단은 음성발생장치(27)로서 미리 기억되어 있는 음성정보를 스피커를 통해 운전자에게 들려주는 것으로 구성하였다.In addition, the alarm means operated by the controller 13 is configured to give the driver the voice information stored in advance as the voice generator 27 through the speaker.

상기한 바와 같이 구성된 본 발명의 작용을 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above are as follows.

차량이 정차하면 운전자가 브레이크페달(30)을 밟고 있는 상태가 상기 페달센서(19)에 의해 컨트롤러(13)로 입력되어 상기 컨트롤러(13)는 상기 솔레노이드밸브(5)를 작동시켜 상기 브레이크페달조작에 따라 마스터실린더(1)에서 발생된 압유가 후륜의 주차브레이크 시스템에 제공된 상태를 지속적으로 유지하게 된다.When the vehicle stops, the driver's stepping on the brake pedal 30 is input to the controller 13 by the pedal sensor 19, and the controller 13 operates the solenoid valve 5 to operate the brake pedal. As a result, the pressure oil generated in the master cylinder 1 is continuously maintained in the state provided to the parking brake system of the rear wheel.

즉, 상기 솔레노이드밸브(5)를 운전자가 브레이크페달(30)을 밟기 전에는 열어놓고 있다가 운전자가 브레이크페달(30)을 밟아 차량이 정차된 것을 판단한 후에는 상기 솔레노이드밸브(5)가 차단되도록 하여 후륜쪽으로 제공되었던 압유가 브레이크페달(30)을 놓아도 마스터실린더(1)로 리턴되지 않도록 하여 지속적으로 후륜측의 브레이크가 작동되도록 하여 주차브레이크를 구현하는 것이다.That is, the solenoid valve 5 is opened before the driver steps on the brake pedal 30, and after the driver steps on the brake pedal 30 to determine that the vehicle is stopped, the solenoid valve 5 is shut off. Even if the hydraulic oil provided to the rear wheel is released to the master cylinder 1 even when the brake pedal 30 is released, the brake on the rear wheel is continuously operated to implement the parking brake.

이때, 브레이크페달(30)을 놓으면 브레이크페달(30)은 후륜측으로부터 오일의 리턴량이 줄어들게 되므로 이대로는 원활하게 복귀되지 않는 바, 이때 부족분의오일은 상기 오일리저버(7)로부터 바이패스관(9)을 통해 마스터실린더(1)로 공급되어 브레이크페달(30)의 원활한 복귀가 가능하도록 한다.At this time, when the brake pedal 30 is released, the brake pedal 30 reduces the return amount of oil from the rear wheel side, so the oil does not return smoothly. In this case, the insufficient oil is bypassed from the oil reservoir 7 to the bypass pipe 9. It is supplied to the master cylinder (1) through to enable a smooth return of the brake pedal (30).

상기 컨트롤러(13)의 수동모드스위치(23)는 자동모드의 에러를 대처하기 위하여 일시적으로 사용하는 것으로서, 이 스위치를 on하면 상기 페달센서(19)로부터 신호를 받아 브레이크페달(30)이 밟혔음이 확인되었을 때에만 주차상태에 들어가게 되며, 그렇지 않은 경우에는 상기 음성발생장치(27)를 통해 "브레이크페달을 밟으십시오"라는 메시지가 나오게 된다.The manual mode switch 23 of the controller 13 is temporarily used to cope with an error in the automatic mode. When the switch is turned on, the brake pedal 30 is stepped on by receiving a signal from the pedal sensor 19. Only when this is confirmed, the vehicle enters the parking state. Otherwise, the voice generating device 27 displays a "step on the brake pedal" message.

또한, 운전자가 브레이크페달(30)을 밟은 상태에서만 수동모드스위치(23)를 off로 하면 주차브레이크 상태가 해제되며, 브레이크페달(30)을 밟지 않은 상태에서는 역시 상기와 같은 메시지를 발생시켜서 운전자의 실수를 미연에 방지할 수 있도록 한다.In addition, if the driver turns off the manual mode switch 23 only when the driver presses the brake pedal 30, the parking brake state is released. In the state where the driver does not press the brake pedal 30, the above message is also generated to generate the driver's message. Make sure that mistakes are avoided beforehand.

다음, 통상의 자동모드에서 상기 컨트롤러(13)가 본 주차브레이크 장치를 작동시키는 것을 살펴보면 도 3에 도시된 바와 같이 시동상태인 경우에 브레이크페달(30)이 밟혔는지를 판단하여 브레이크페달(30)이 밟히지 않은 경우에는 "브레이크페달을 밟으십시오"라는 음성을 발생시키고 밟힌 경우에는 현 조작상태가 자동상태인지 판단하여 자동상태인 경우에는 주행중인지를 판단한다.Next, when the controller 13 operates the parking brake device in the normal automatic mode, it is determined whether the brake pedal 30 is stepped in the start state as shown in FIG. If it is not stepped on, it generates the voice "Please press the brake pedal". If it is stepped on, it is judged whether the present operation state is automatic and if it is automatic, it is judged whether it is driving.

이때의 주행상태가 주차상태로부터 주행상태로 변화된 것임이 판단되면 "주차상태를 해제합니다"라는 메시지를 출력하면서 상기 솔레노이드밸브(5)를 조작하여 주차상태를 해제한다.When it is determined that the driving state is changed from the parking state to the driving state at this time, the parking state is released by operating the solenoid valve 5 while outputting the message "release the parking state".

만약, 수동모드인 경우에는 운전자가 주차스위치를 off로 하면 "주차상태가해제되었습니다"라는 메시지를 출력하고 솔레노이드밸브(5)를 조작하여 주차상태를 해제하고, 주차상태가 해제되어 주행하던 중 다시 정차상태가 감지되고 운전자가 주차스위치를 on으로 하면 이때의 차량상태가 실질적으로 정차상태인자 주차상태인지를 판단하여 주차상태인 경우에는 "주차되었습니다"라는 메시지를 출력하고, 정차상태인 경우에는 3초 이상 정차하는지를 판단하고 변속레버가 주차레인지에 있는지 확인하여 "잠시 주차하겠습니다"라는 메시지를 출력하면서 상기 솔레노이드밸브(5)를 작동시켜 후륜측에 공급되었던 오일의 리턴을 방지하여 정차상태를 실현하고, 변속레버가 주차레인지에서 벗어나는가를 판단하여 브레이크페달(30) 작동상태에 따라 상기와 같은 판단작동을 지속적으로 반복한다.In the manual mode, when the driver turns off the parking switch, the driver outputs the message "Parking condition has been released" and operates the solenoid valve 5 to release the parking condition. When the stop condition is detected and the driver turns on the parking switch, the driver determines whether the vehicle is in the parking state. In the case of the parking state, it outputs the message "Parked." It determines whether the vehicle stops for more than a second, checks whether the shift lever is in the parking range, outputs the message "I will park for a while," and operates the solenoid valve 5 to prevent the return of the oil supplied to the rear wheel, thereby realizing the stop state. In accordance with the brake pedal 30 operating state to determine whether the shift lever is out of the parking range and Repeat the same judgment operation continuously.

이상의 설명에서 상기 정차상태를 판단하는 조건은 엔진이 작동중 휠속도가 0이며 브레이크페달(30)이 밟히고 변속레버는 D 나 N 레인지인 경우이며, 주차상태는 엔진이 꺼져있고 휠속도가 0이며 페달센서(19)의 신호가 OFF이고 변속레버는 P 레인지인 경우이고, 주행상태는 상기 엔진센서(17)와 휠속도센서(21)와 페달센서(19)의 신호가 정차상태와 주차상태 이외의 상태와 변속레버가 P 레인지 이외의 레인지인 경우이다.In the above description, the condition for determining the stopping state is that the wheel speed is 0 while the engine is operating, the brake pedal 30 is stepped on, the shift lever is in the D or N range, and the parking state is that the engine is turned off and the wheel speed is 0. The signal of the pedal sensor 19 is OFF and the shift lever is the P range, and the driving state is that the signals of the engine sensor 17, the wheel speed sensor 21, and the pedal sensor 19 are stopped and parked. This is the case when the other state and the shift lever are in a range other than the P range.

이상 설명한 바와 같이 본 발명에 의하면, 차량의 주행상태에 따라 자동적으로 주차상태와 주행상태를 절환할 수 있도록 함은 물론, 종래 다수의 부품 사용에 의한 누적공차 등에 따른 조정절차를 배제하고도 원활한 작동상태를 확보할 수 있다.As described above, according to the present invention, it is possible to automatically switch the parking state and the driving state according to the driving state of the vehicle, as well as to operate smoothly without excluding the adjustment procedure according to the accumulated tolerance by using a large number of conventional parts. State can be obtained.

Claims (3)

유압식 브레이크장치를 채택한 차량에 있어서;In a vehicle employing a hydraulic brake device; 후륜의 브레이크어셈블리로 공급되는 유압을 연통시키는 상태와 차단시키는 상태를 절환할 수 있도록 설치된 파킹밸브수단과;A parking valve means installed to switch a state of communicating hydraulic pressure supplied to the brake assembly of the rear wheel and a state of blocking the hydraulic pressure; 마스터실린더와 오일리저버를 연통시키는 바이패스수단과;Bypass means for communicating the master cylinder with the oil reservoir; 변속레버의 작동상태를 감지하는 변속센서와, 엔진 작동상태를 감지하는 엔진센서, 브레이크페달의 작동상태를 감지하는 페달센서 및 휠의 회전속도를 측정하는 휠속도센서와;A shift sensor detecting an operating state of a shift lever, an engine sensor detecting an engine operating state, a pedal sensor detecting an operating state of a brake pedal, and a wheel speed sensor measuring a rotation speed of a wheel; 상기 변속센서, 엔진센서, 페달센서 및 휠속도센서의 신호를 받아 상기 파킹밸브수단을 제어하고 주차등을 점등하는 컨트롤러와,A controller which receives the signals of the shift sensor, the engine sensor, the pedal sensor and the wheel speed sensor to control the parking valve means and to turn on the parking light; 상기 컨트롤러에 연결되어 컨트롤러의 지시에 따라 적절한 경보가 운전자에게 전달되도록 하는 경보수단으로 구성된 것을 특징으로 하는 자동 주차브레이크 시스템.And an alarm means connected to the controller, the alarm means configured to transmit an appropriate alarm to the driver according to the controller's instructions. 제1항에 있어서,The method of claim 1, 상기 바이패스수단은 상기 오일리저버와 마스터실린더를 연통시키도록 별도로 설치된 바이패스관과, 상기 바이패스관에 설치되어 오일리저버로부터 마스터실린더를 향하는 방향만의 오일 유동을 허용하는 체크밸브로 구성된 것을 특징으로 하는 자동 주차브레이크 시스템.The bypass means comprises a bypass pipe separately installed to communicate the oil reservoir and the master cylinder, and a check valve installed in the bypass pipe to allow oil flow only in the direction from the oil reservoir toward the master cylinder. Automatic parking brake system. 제1항에 있어서,The method of claim 1, 상기 컨트롤러에는 운전자의 수동조작이 가능하도록 하는 수동모드스위치수단이 설치되어 구성된 것을 특징으로 하는 자동 주차브레이크 시스템.The controller has an automatic parking brake system, characterized in that the manual mode switch means for the manual operation of the driver is installed and configured.
KR10-2000-0084456A 2000-12-28 2000-12-28 An auto parking brake system KR100383999B1 (en)

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