KR0184808B1 - Dynamic control system for an automobile - Google Patents

Dynamic control system for an automobile Download PDF

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Publication number
KR0184808B1
KR0184808B1 KR1019960067376A KR19960067376A KR0184808B1 KR 0184808 B1 KR0184808 B1 KR 0184808B1 KR 1019960067376 A KR1019960067376 A KR 1019960067376A KR 19960067376 A KR19960067376 A KR 19960067376A KR 0184808 B1 KR0184808 B1 KR 0184808B1
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KR
South Korea
Prior art keywords
oil
solenoid valve
brake
wheel
vehicle
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KR1019960067376A
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Korean (ko)
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KR19980048734A (en
Inventor
윤성현
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만도기계주식회사
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Priority to KR1019960067376A priority Critical patent/KR0184808B1/en
Publication of KR19980048734A publication Critical patent/KR19980048734A/en
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Publication of KR0184808B1 publication Critical patent/KR0184808B1/en

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    • 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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
    • 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
    • B60T13/142—Systems with master cylinder
    • B60T13/147—In combination with distributor valve
    • 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
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof

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

Abstract

본 발명은 차량용 역학 제어 시스템에 관한 것으로, 더 상세하게는 구동륜 뿐만 아니라 피구동륜도 제어할 수 있도록 한 차량용 역학 제어 시스템에 관한 것이다.The present invention relates to a vehicle dynamics control system, and more particularly, to a vehicle dynamics control system capable of controlling not only driving wheels but also driven wheels.

본 발명은 브레이크페달에 외력이 가해지면 차량의 각 휠측으로 오일을 전달하는 마스터실린더, 차량의 휠의 일측에 각각 설치되며 마스터실린더로 부터 오일을 공급받아 휠을 각각 제동시키는 브레이크, 상기 마스터실린더와 브레이크 사이에 마련되어 브레이크로 공급되는 오일의 양을 조절하는 유량조절밸브, 상기 유량조절밸브와 마스터실린더 사이의 유로에서 바이패스되어 휠에 과도한 제동력이 작용되면 차량의 적소에 설치된 전자제어유니트의 명령에 의하여 개방되어 브레이크의 오일을 바이패스시키는 제1솔레노이드밸브, 상기 제1솔레노이드밸브에서 토출되는 오일을 펌핑하여 다시 유량조절밸브측으로 공급하는 펌프, 상기 펌프와 마스터실린더 사이에 마련되며 브레이크페달에 외력이 작용되면 개방되어 오일이 휠측으로 공급되게 하고 브레이크페달에 외력이 작용되지 않을 때 전자제어유니트의 명령에 의하여 폐쇄되는 제2솔레노이드밸브, 상기 제2솔레노이드밸브와 펌프 사이에 마련되어 브레이크페달에 외력이 작용되면 폐쇄되고 외력이 작용되지 않으면 전자제어유니트의 명령에 의하여 개방되어 오일이 휠측으로 공급되게하는 제3솔레노이드밸브를 구비하는 구성이다.According to the present invention, when an external force is applied to the brake pedal, a master cylinder delivers oil to each wheel side of the vehicle, and a brake is installed on one side of the wheel of the vehicle and brakes the wheels by receiving oil from the master cylinder, respectively. Flow control valve is provided between the brake to control the amount of oil supplied to the brake, when the excessive braking force is applied to the wheel by bypass in the flow path between the flow control valve and the master cylinder to the command of the electronic control unit installed in the right place of the vehicle The first solenoid valve opened to bypass the oil of the brake, the pump pumping oil discharged from the first solenoid valve and supplied to the flow control valve side again, is provided between the pump and the master cylinder, and the external force is applied to the brake pedal. When activated, it opens to allow oil to be supplied to the wheel. The second solenoid valve closed by the command of the electronic control unit when the external force is not applied to the brake pedal, provided between the second solenoid valve and the pump is closed when the external force is applied to the brake pedal and the electronic control unit if the external force is not applied. It is configured to have a third solenoid valve opened by the command of the oil to be supplied to the wheel side.

Description

차량용 역학 제어 시스템(Car Dynamics Control System)Car Dynamics Control System

본 발명은 차량용 역학 제어 시스템에 관한 것으로, 더 상세하게는 구동륜 뿐만 아니라 피구동륜도 제어할 수 있도록 한 차량용 역학 제어 시스템에 관한 것이다.The present invention relates to a vehicle dynamics control system, and more particularly, to a vehicle dynamics control system capable of controlling not only driving wheels but also driven wheels.

차량의 역학 제어(Car Dynamics Control)란 운전자가 주행하고자 하는 이상적인 차량의 주행상태(가속,감속,선회 등)와 차량의 실제 주행상태의 편차를 측정하여 차량이 안정되게 주행할 수 있도록 그 자세를 제어하는 것을 말한다.Car Dynamics Control measures the deviation of the ideal driving condition (acceleration, deceleration, turning, etc.) and the actual driving condition of the vehicle so that the driver can drive stably. To control.

도 1은 일반적인 차량용 트랙션 컨트롤 시스템을 보인 유압회로도로서,이를 간단히 설명한다.1 is a hydraulic circuit diagram showing a general vehicle traction control system, which will be described briefly.

브레이크페달(10)에 외력이 가해지면 유량조절밸브(21)를 통하여 좌,우측 전방휠(11FL,11FR)과 좌,우측 후방휠(11RL,11RR)에 각각 마련된 브레이크(22)로 유압이 전달되어 휠을 정지시킨다. 그러다가 휠에 과도한 제동력이 작용되어 휠에 미끄럼현상이 발생되면 차량의 적소에 마련된 전자제어유니트(미도시)에서 제1솔레노이드밸브(23)를 개방시킨다. 그러면 차량의 각 휠(11FL,11FR,11RL,11RR)에 작용되는 유압은 축압기(24)로 전달되므로 휠에 작용되는 제동력은 감소되는 것이다. 그리하여 휠에 작용되는 제동력이 적정치 이상으로 감소되면 전자제어유니트는 펌프(25)를 구동시킴과 동시에 제1솔레노이드밸브(23)를 폐쇄시킨다. 그러면 차량의 각 휠에 작용되는 유압은 증가되는 것이다. 그러다가 차량이 빙판길 등과 같은 곳을 주행하게 되면 전자제어유니트는 제2솔레노이드밸브(26)를 폐쇄시키는데,그러면 전륜(11FL,11FR)으로만 유체가 전달되므로 전륜은 잠긴상태가 된다. 잠긴 상태의 전륜을 구동시키려면 큰힘이 필요하고, 전륜이 큰힘에 의하여 구동되므로 차량은 미끄러지지 않고 안정되게 주행되는 것이다.When external force is applied to the brake pedal 10, the hydraulic pressure is transmitted to the brakes 22 provided on the left and right front wheels 11FL and 11FR and the left and right rear wheels 11RL and 11RR through the flow control valve 21. To stop the wheel. Then, when excessive braking force is applied to the wheel to generate a sliding phenomenon on the wheel, the first solenoid valve 23 is opened in an electronic control unit (not shown) provided in place of the vehicle. Then, the hydraulic pressure acting on each wheel 11FL, 11FR, 11RL, 11RR of the vehicle is transmitted to the accumulator 24, so that the braking force applied to the wheel is reduced. Thus, when the braking force applied to the wheel is reduced to an appropriate value or more, the electronic control unit drives the pump 25 and simultaneously closes the first solenoid valve 23. The hydraulic pressure applied to each wheel of the vehicle is then increased. Then, when the vehicle travels on a place such as an icy road, the electronic control unit closes the second solenoid valve 26. Then, since the fluid is transferred only to the front wheels 11FL and 11FR, the front wheel is locked. To drive the front wheel in the locked state requires a large force, the front wheel is driven by a large force, so that the vehicle is stable running without slipping.

그러나 상기와 같은 종래의 트랙션 컨트롤 시스템은 전륜만을 제어할 수 있는 단점이 있었다. 즉,제1솔레노이드밸브(21)와 펌프(25) 사이에 마련되며 브레이크페달(10)측과 연통된 제3솔레노이드밸브(26)가 닫히면 펌프에서 공급되는 유체는 후륜측으로는 전혀 전달되지 않고 전륜측으로만 전달된다. 그러므로 후륜은 전혀 제어할 수 없는 단점이 있었다.However, the conventional traction control system as described above has a disadvantage that can control only the front wheels. That is, when the third solenoid valve 26 provided between the first solenoid valve 21 and the pump 25 and communicated with the brake pedal 10 side is closed, the fluid supplied from the pump is not transmitted to the rear wheel side at all and the front wheel It is only delivered to the side. Therefore, the rear wheel had a disadvantage that can not be controlled at all.

본 발명은 상기의 단점을 해소하기 위하여 안출된 것으로, 본 발명의 목적은 펌프측에서 공급되는 유체가 전륜뿐만 아니라 후륜측으로도 공급되도록 솔레노이드벨브를 설치하여 전륜 뿐만 아니라 후륜도 제어할 수 있는 차량용 역학 제어 시스템을 제공함에 있다.The present invention has been made in order to solve the above disadvantages, an object of the present invention is to install a solenoid valve so that the fluid supplied from the pump side is supplied to the rear wheel as well as the front wheel to control not only the front wheel but also the rear mechanics In providing a control system.

도 1은 일반적인 차량용 트랙션 컨트롤 시스템을 보인 유압회로도,1 is a hydraulic circuit diagram showing a typical vehicle traction control system,

도 2는 본 발명에 따른 차량용 역학 제어 시스템을 보인 유압회로도.Figure 2 is a hydraulic circuit diagram showing a vehicle dynamics control system according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

51:브레이크페달,52:배력장치,51: brake pedal, 52: power unit,

53:마스터실린더,61:유량조절밸브,53: master cylinder, 61: flow control valve,

62,66,67:제1,2,3솔레노이드밸브.62,66,67: 1st, 2nd, 3rd solenoid valve.

상기 목적을 달성하기 위한 본 발명은, 브레이크페달에 외력이 가해지면 차량의 각 휠측으로 오일을 전달하는 마스터실린더, 차량의 휠의 일측에 각각 설치되며 마스터실린더로 부터 오일을 공급받아 휠을 각각 제동시키는 브레이크, 상기 마스터실린더와 브레이크 사이에 마련되어 브레이크로 공급되는 오일의 양을 조절하는 유량조절밸브, 상기 유량조절밸브와 마스터실린더 사이의 유로에서 바이패스되어 휠에 과도한 제동력이 작용되면 차량의 적소에 설치된 전자제어유니트의 명령에 의하여 개방되어 브레이크의 오일을 바이패스시키는 제1솔레노이드밸브, 상기 제1솔레노이드밸브에서 토출되는 오일을 펌핑하여 다시 유량조절밸브측으로 공급하는 펌프, 상기 펌프와 마스터실린더 사이에 마련되며 브레이크페달에 외력이 작용되면 개방되어 오일이 휠측으로 공급되게 하고 브레이크페달에 외력이 작용되지 않을 때 전자제어유니트의 명령에 의하여 폐쇄되는 제2솔레노이드밸브, 상기 제2솔레노이드밸브와 펌프 사이에 마련되어 브레이크페달에 외력이 작용되면 폐쇄되고 외력이 작용되지 않으면 전자제어유니트의 명령에 의하여 개방되어 오일이 휠측으로 공급되게하는 제3솔레노이드밸브를 구비하는 구성이다.The present invention for achieving the above object is, when the external force is applied to the brake pedal, the master cylinder for delivering oil to each wheel side of the vehicle, respectively installed on one side of the wheel of the vehicle and receiving the oil from the master cylinder to brake the wheels respectively Brake, a flow regulating valve provided between the master cylinder and the brake to regulate the amount of oil supplied to the brake, and bypassed in the flow path between the flow regulating valve and the master cylinder, when excessive braking force is applied to the wheel. A first solenoid valve opened by a command of an installed electronic control unit to bypass the oil of the brake, a pump for pumping oil discharged from the first solenoid valve and supplying it to the flow control valve side, between the pump and the master cylinder The brake pedal is opened when an external force is applied The second solenoid valve is closed between the second solenoid valve and the pump when the work is supplied to the wheel and is closed by the command of the electronic control unit when no external force is applied to the brake pedal. If this does not work, it is configured to have a third solenoid valve which is opened by the command of the electronic control unit to supply oil to the wheel side.

이하 첨부한 도면에 의하여 본 발명에 따른 차량용 역학 제어 시스템(Car Dynamics Control System)의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of a car dynamics control system according to the present invention will be described in detail with reference to the accompanying drawings.

도 2에 도시하듯이 브레이크페달(51)과 연결된 배력장치(52)가 마련되고,상기 배력장치(52)의 일측에는 마스터실린더(53)가 결합된다. 상기 배력장치(52)는 브레이크페달에 외력이 가해지면 배력을 생성하며,상기 마스터실린더(53)는 배력장치로 부터 힘을 전달받아 오일을 차량의 휠측으로 전달한다.As shown in FIG. 2, a power booster 52 connected to the brake pedal 51 is provided, and a master cylinder 53 is coupled to one side of the power booster 52. The booster 52 generates a boost when an external force is applied to the brake pedal, and the master cylinder 53 receives the force from the booster to deliver oil to the wheel side of the vehicle.

상세히 설명하면,차량의 전,후륜(55FL,55FR,55RL,55RL)에는 브레이크(56)가 각각 마련되고,상기 각 브레이크(56a,56b,56c,56d)와 마스터실린더(53)는 주유로(71)에 의하여 연통된다. 상기 각 브레이크(56a,56b,56c,56d)와 마스터실린더 사이에는 마스터실린더에서 브레이크(56)로 공급되는 오일의 양을 조절하는 유량조절밸브(61)가 마련된다. 그리고 브레이크(56)와 유량조절밸브(61) 사이의 주유로(71)에는 바이패스유로(72)가 마련되고 상기 바이패스유로(72)에는 제1솔레노이드밸브(62)가 마련된다. 상기 제1솔레노이드밸브(62)는 휠에 과도한 제동력이 작용되어 휠에 미끄럼현상이 발생되면 차량의 적소에 마련된 전자제어유니트(미도시)의 명령에 의하여 개방되어 브레이크에 공급된 오일을 바이패스시킨다. 상기 제1솔레노이드밸브(62)에서 연장된 바이패스유로(72)에는 오일이 저장되는 축압기(63) 및 펌프(64)가 마련되고,상기 펌프(64)는 마스터실린더(53)와 유량조절밸브(61) 사이의 주유로(71)와 연통된다. 상기 제1솔레노이드밸브(62)에서 오일이 토출되면 휠에 작용되는 제동력이 감소되는데,휠에 작용되는 제동력이 적정치 이하로 감소되면 전자제어유니트는 상기 펌프(64)를 구동시켜 축압기(63)의 오일을 다시 유량조절밸브(61)측으로 펌핑한다. 그러면 휠에 작용되는 제동력은 다시 상승되는 것이다. 이와같이 전자제어유니트의 명령에 의하여 제1솔레노이드밸브(62)가 개폐를 반복하여서,휠이 잠기는 현상을 방지하는 것이다.In detail, the brakes 56 are provided on the front and rear wheels 55FL, 55FR, 55RL, and 55RL of the vehicle, respectively, and the brakes 56a, 56b, 56c, 56d and the master cylinder 53 are filled with oil passages ( 71). Between each of the brakes 56a, 56b, 56c, 56d and the master cylinder, a flow regulating valve 61 is provided to adjust the amount of oil supplied from the master cylinder to the brake 56. In addition, a bypass passage 72 is provided in the oil supply passage 71 between the brake 56 and the flow control valve 61, and a first solenoid valve 62 is provided in the bypass passage 72. The first solenoid valve 62 is opened by a command of an electronic control unit (not shown) provided in place of the vehicle to bypass the oil supplied to the brake when excessive braking force is applied to the wheel to cause slippage on the wheel. . The bypass passage 72 extending from the first solenoid valve 62 is provided with an accumulator 63 and a pump 64 in which oil is stored, and the pump 64 has a master cylinder 53 and a flow rate control. It communicates with the oil passage 71 between the valves 61. When oil is discharged from the first solenoid valve 62, the braking force applied to the wheel is reduced. When the braking force applied to the wheel is reduced to below an appropriate value, the electronic control unit drives the pump 64 to accumulate the accumulator 63. ) Is pumped back to the flow control valve (61). The braking force acting on the wheel is then raised again. In this way, the first solenoid valve 62 is repeatedly opened and closed by the command of the electronic control unit, thereby preventing the wheel from locking.

그리고 상기 펌프(64)의 후방측에는 제2바이패스유로(73)가 분기되어 펌프의 전방측과 연통되게 마련된다. 상기 제2바이패스유로(73)에는 제2솔레노이드밸브(66)가 마련되는데,상기 제2솔레노이드밸브(66)는 일반적인 경우에는 개방되어 있고 브레이크페달에 외력이 가해지지 않은 상태에서 차량의 휠을 제어할 필요가 있을 때 전자제어유니트에 의하여 폐쇄된다. 그리고 상기 제2솔레노이드밸브(66)와 펌프(64)사이에는 제3솔레노이드밸브(67)가 마련되는데,상기 제3솔레노이드밸브(67)는 일반적인 경우에는 폐쇄되어 있고 브레이크페달에 외력이 작용되지 않은 상태에서 차량의 휠을 제어할 필요가 있을 때에는 전자제어유니트의 명령에 의하여 개방된다. 즉,브레이크페달에 외력이 작용되면 제2솔레노이드밸브(66)는 개방되어 있고,제3솔레노이드밸브는 폐쇄되어 있으므로 오일은 유량조절밸브(61)를 통하여 브레이크로 전달된다. 그러나 브레이크페달에 외력이 작용되지 않은 상태에서 차량의 휠중 어느 하나를 제어할 필요가 있을 경우에는 전자제어유니트에 의하여 제2솔레노이드밸브(66)는 폐쇄되고 제3솔레노이드밸브(67)는 개방되므로 펌프에서 토출되는 오일은 제어하고자 하는 휠측으로 공급되는 것이다.In addition, a second bypass passage 73 branches to the rear side of the pump 64 so as to communicate with the front side of the pump. A second solenoid valve 66 is provided in the second bypass passage 73. The second solenoid valve 66 is open in a general case and the wheel of the vehicle is not applied to the brake pedal. It is closed by the electronic control unit when it is necessary to control it. A third solenoid valve 67 is provided between the second solenoid valve 66 and the pump 64. The third solenoid valve 67 is closed in a general case and no external force is applied to the brake pedal. When it is necessary to control the wheel of the vehicle in the state, it is opened by the command of the electronic control unit. That is, when an external force is applied to the brake pedal, the second solenoid valve 66 is opened and the third solenoid valve is closed, so that oil is delivered to the brake through the flow control valve 61. However, when it is necessary to control any one of the wheels of the vehicle in the state that no external force is applied to the brake pedal, the second solenoid valve 66 is closed by the electronic control unit and the third solenoid valve 67 is opened. Oil discharged from is supplied to the wheel to be controlled.

즉,본 발명에 따른 차량용 역학 제어 시스템은 차량의 전,후륜 좌후측 모두를 독립적으로 제어할 수 있다. 그러므로 차량의 조향시 조향하고자 하는 각도보다 더 많이 조향될 경우에는 전륜중 어느 하나를 제어하면 되고, 조향하고자 하는 각도보다 더 작게 조향될 경우에는 후륜중 어느 하나를 제어하면 차량은 적은 궤적을 그리면서 신속하게 조향하고자 하는 영역으로 복귀되는 것이다.That is, the vehicle dynamics control system according to the present invention can independently control both the front and rear left and rear sides of the vehicle. Therefore, when steering the vehicle more than the angle to be steered to control any one of the front wheel, if the steering is smaller than the steering angle to control any one of the rear wheel, the vehicle draws a small trajectory It is quickly returned to the area to be steered.

이상에서 설명하듯이 본 발명에 따른 차량용 역학 제어 시스템은, 브레이크패달을 밟지 않은 상태에서 펌프에서 공급되는 유체가 전륜뿐만 아니라 후륜측으로로도 공급되므로 차량의 전,후륜 좌우측을 모두 독립적으로 제어할 수 있는 특징이 있다.As described above, in the vehicle dynamics control system according to the present invention, since the fluid supplied from the pump is supplied not only to the front wheel but also to the rear wheel side, the front and rear left and right sides of the vehicle can be independently controlled. There is a characteristic.

Claims (1)

브레이크페달(51)에 외력이 가해지면 차량의 각 휠(55FL,55FR,55RL,55RR)측으로 오일을 전달하는 마스터실린더(53),When an external force is applied to the brake pedal 51, the master cylinder 53 which delivers oil to the wheels 55FL, 55FR, 55RL, 55RR of the vehicle, 차량의 휠(55)의 일측에 각각 설치되며 마스터실린더(53)로 부터 오일을 공급받아 휠을 각각 제동시키는 브레이크(56),Brakes 56, which are respectively installed on one side of the wheel 55 of the vehicle and receive oil from the master cylinder 53, respectively, to brake the wheels, 상기 마스터실린더(53)와 브레이크(56) 사이에 마련되어 브레이크로 공급되는 오일의 양을 조절하는 유량조절밸브(61),A flow regulating valve 61 provided between the master cylinder 53 and the brake 56 to adjust the amount of oil supplied to the brake; 상기 유량조절밸브(61)와 마스터실린더(53) 사이의 유로에서 바이패스되어 휠(55)에 과도한 제동력이 작용되면 차량의 적소에 설치된 전자제어유니트의 명령에 의하여 개방되어 브레이크의 오일을 바이패스시키는 제1솔레노이드밸브(62),When the brake 55 is bypassed in the flow path between the flow regulating valve 61 and the master cylinder 53, and excessive braking force is applied to the wheel 55, it is opened by the command of the electronic control unit installed in the vehicle and bypasses the oil of the brake. First solenoid valve 62, 상기 제1솔레노이드밸브(62)에서 토출되는 오일을 펌핑하여 다시 유량조절밸브(62)측으로 공급하는 펌프(64),A pump 64 for pumping oil discharged from the first solenoid valve 62 and supplying the oil to the flow control valve 62 again; 상기 펌프(64)와 마스터실린더(53) 사이에 마련되며 브레이크페달에 외력이 작용되면 개방되어 오일이 휠측으로 공급되게 하고 브레이크페달에 외력이 작용되지 않을 때 전자제어유니트의 명령에 의하여 폐쇄되는 제2솔레노이드밸브(66),It is provided between the pump 64 and the master cylinder 53 and is opened when the external force is applied to the brake pedal to supply oil to the wheel side and closed by the command of the electronic control unit when the external force is not applied to the brake pedal. 2 solenoid valve (66), 상기 제2솔레노이드밸브(66)와 펌프(64) 사이에 마련되어 브레이크페달에 외력이 작용되면 폐쇄되고 외력이 작용되지 않으면 전자제어유니트의 명령에 의하여 개방되어 오일이 휠측으로 공급되게하는 제3솔레노이드밸브(67)를 구비하는 것을 특징으로 하는 차량의 역학 제어 시스템.The third solenoid valve provided between the second solenoid valve 66 and the pump 64 is closed when an external force is applied to the brake pedal, and is opened by a command of the electronic control unit when the external force is not applied, so that oil is supplied to the wheel side. A dynamics control system for a vehicle, comprising: a 67;
KR1019960067376A 1996-12-18 1996-12-18 Dynamic control system for an automobile KR0184808B1 (en)

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