KR19980075282A - Braking Force Restoration Device at Engine Stop - Google Patents

Braking Force Restoration Device at Engine Stop Download PDF

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Publication number
KR19980075282A
KR19980075282A KR1019970011462A KR19970011462A KR19980075282A KR 19980075282 A KR19980075282 A KR 19980075282A KR 1019970011462 A KR1019970011462 A KR 1019970011462A KR 19970011462 A KR19970011462 A KR 19970011462A KR 19980075282 A KR19980075282 A KR 19980075282A
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KR
South Korea
Prior art keywords
gear
engine
drive
actuator
driving
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KR1019970011462A
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Korean (ko)
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KR100215925B1 (en
Inventor
오재훈
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김영귀
기아자동차 주식회사
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Priority to KR1019970011462A priority Critical patent/KR100215925B1/en
Publication of KR19980075282A publication Critical patent/KR19980075282A/en
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Publication of KR100215925B1 publication Critical patent/KR100215925B1/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
    • 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
    • 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
    • B60T13/24—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 gaseous
    • B60T13/46—Vacuum systems
    • B60T13/48—Vacuum systems direct, i.e. brakes applied directly by vacuum
    • 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
    • B60T13/74—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 electrical assistance or drive
    • B60T13/741—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 electrical assistance or drive acting on an ultimate actuator
    • 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

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

본 발명은 주행 중 엔진의 정지시 진공 펌프를 구동시켜 제동 배력 장치에 부압을 제공함으로써 브레이크 시스템의 제동력이 복원될 수 있도록 한 엔진 정지시 제동력 복원 장치에 관한 것이다. 본 발명은 주행 중에는 전자 제어 유닛(7)에 의해 제어되는 액츄에이터(6)에 의해 전달 기어(5)가 구동 기어(2)와 피동 기어(3) 사이에서 벗어나게 되고, 주행 중 엔진(8)이 정지되면 전자 제어 유닛(7)에 의해 제어되는 액츄에이터(6)에 의해 전달 기어(5)가 구동 기어(2)와 피동 기어(3) 사이에 맞물리도록 이동되어 구동 기어(2)의 회전력을 피동 기어(3)에 전달하여 진공펌프(4)를 구동시키는 것을 특징으로 하며, 자동차의 안전성과 브레이크 시스템의 신뢰성이 향상되는 장점이 있다.The present invention relates to a braking force restoring apparatus when an engine stops so that the braking force of a brake system can be restored by providing a negative pressure to the braking power supply by driving a vacuum pump when the engine is stopped while driving. According to the present invention, the transmission gear 5 is displaced between the driving gear 2 and the driven gear 3 by the actuator 6 controlled by the electronic control unit 7 while driving, and the engine 8 while driving When stopped, the transmission gear 5 is moved to engage between the drive gear 2 and the driven gear 3 by an actuator 6 controlled by the electronic control unit 7 to drive the rotational force of the drive gear 2. It is characterized in that the transfer to the gear (3) to drive the vacuum pump (4), the safety of the vehicle and the reliability of the brake system is improved.

Description

엔진 정지시 제동력 복원 장치Braking Force Restoration Device at Engine Stop

본 발명은 자동차용 브레이크 시스템에 관한 것으로서, 보다 구체적으로는 주행 중 엔진의 정지시 진공 펌프를 구동시켜 제동 배력 장치에 부압을 제공함으로써 브레이크 시스템의 제동력이 복원될 수 있도록 한 엔진 정지시 제동력 복원 장치에 관한 것이다.The present invention relates to a brake system for an automobile, and more particularly, a braking force restoring apparatus for stopping an engine, in which a braking force of a brake system can be restored by providing a negative pressure to a braking power supply by driving a vacuum pump when the engine is stopped while driving. It is about.

브레이크 시스템(Brake System)은 주행중의 자동차를 감속 또는 정지시킴과 동시에 주차 상태를 유지하기 위해 사용되는 중요한 장치이며, 일반적으로 마찰력을 이용하여 자동차의 운동 에너지를 열 에너지로 바꾸어 그것을 공기 중으로 방산 함으로써 제동 작동을 하는 마찰식 브레이크가 사용되고 있다.A brake system is an important device used to keep a car parked at the same time as decelerating or stopping a car while driving. In general, a brake system uses friction to convert the kinetic energy of the car into thermal energy and dissipates it into the air. An actuating friction brake is used.

이러한 브레이크 시스템은 기본적으로 운전자의 조작력을 링크나 유압을 이용하여 증대시켜 전달하는 조작 기구와, 그 힘을 받아 제동력을 발생하는 본체로 이루어져 있다.The brake system basically consists of an operating mechanism that increases and transmits the driver's operating force by using a link or hydraulic pressure, and a main body that generates the braking force by the force.

조작 기구에는 로드나 와이어를 사용하는 기계식과, 유압을 이용하는 유압식, 그리고 압축 공기를 이용하는 공기 브레이크 등이 있다.The operating mechanism includes a mechanical type using a rod or a wire, a hydraulic type using a hydraulic pressure, and an air brake using compressed air.

한편, 유압식 브레이크에 있어서, 대형 자동차 등과 같이 큰 제동력이 필요한 경우 페달을 밟는 힘이 커져 조작에 지장을 초래하므로, 적은 답력으로도 큰 조작력이 발생될 수 있도록 배력 장치가 설치된 것이 많다. 이러한 배력 장치는 통상적으로 엔진의 흡기 매니폴드에 연결되어 엔진의 흡기 부압을 이용하는 방식이 사용되고 있다.On the other hand, in the hydraulic brake, when a large braking force is required, such as a large car, the stepping force of the pedal is increased, which causes trouble in operation, and therefore, a large power device is installed so that a large operating force can be generated even with a small pedaling force. Such a power booster is typically connected to an intake manifold of an engine and utilizes an intake negative pressure of the engine.

그러나, 상기와 같은 종래의 흡기 부압을 이용한 배력 장치는 다음과 같은 문제점이 있었다.However, the conventional power booster using the intake negative pressure has the following problems.

즉, 자동차의 주행 중 엔진이 정지되면, 흡기 매니폴드의 흡기 부압이 감소된다. 따라서, 흡기 부압을 이용한 종래의 배력 장치는 제 역할을 하지 못하게 된다. 따라서, 브레이크 패달을 밝기 위한 답력이 증대되어 브레이크 시스템의 조작에 많은 어려움이 따르게 되어 브레이크 시스템의 제동력이 상실되는 문제점이 발생된다. 특히, 고속 주행 또는 내리막길 주행 중 엔진의 정지로 인하여 브레이크 시스템의 제동력이 상실되면 안전 사고의 발생 위험이 매우 높아질 우려가 있었다.That is, if the engine is stopped while the vehicle is running, the intake negative pressure of the intake manifold is reduced. Therefore, the conventional power booster using the intake negative pressure does not work properly. Accordingly, the effort for brightening the brake pedal is increased, which leads to a lot of difficulties in the operation of the brake system, resulting in a loss of braking force of the brake system. In particular, if the braking force of the brake system is lost due to the engine stopping during high speed driving or downhill driving, there is a concern that the risk of a safety accident is very high.

본 발명은 상기와 같은 문제점을 해결하기 위해 안출된 것으로, 자동차의 주행중 엔진이 정지되면, 진공 펌프를 작동시켜 배력 장치에 부압을 제공함으로써 브레이크 시스템의 제동력을 회복시킬 수 있도록 된 엔진 정지시 제동력 복원 장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, when the engine is stopped while the vehicle is running, restoring the braking force when the engine stops to restore the braking force of the brake system by providing a negative pressure to the power unit by operating the vacuum pump The purpose is to provide a device.

도 1은 본 발명에 따른 제동력 복원 장치의 구성도.1 is a block diagram of a braking force recovery apparatus according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 : 구동 축2 : 구동 기어1: drive shaft 2: drive gear

3 : 피동 기어4 : 진공 펌프3: driven gear 4: vacuum pump

5 : 전달 기어6 : 액츄에이터5: transmission gear 6: actuator

7 : 전자 제어 유닛8 : 엔진7: electronic control unit 8: engine

9 : 트랜스미션9: Transmission

상기와 같은 목적은, 배력 장치에 연결되는 진공 펌프와, 진공 펌프를 구동시키기 위한 피동 기어와, 구동 축에 설치되는 구동 기어와, 상기 구동 기어와 피동 기어 사이에 개재되어 구동 기어의 회전력을 피동 기어에 전달하는 전달 기어와, 전달 기어를 축방향으로 이동시키는 액츄에이터와, 엔진 및 액츄에이터에 연결되어 엔진의 상태에 따라 액츄에이터를 작동시키는 전자 제어 유닛을 포함하며, 엔진의 작동 중에는 전자 제어 유닛에 의해 작동되는 액츄에이터가 전달 기어를 구동 기어와 피동 기어 사이에서 벗어나도록 이동시키고, 엔진이 정지되면 전자 제어 유닛에 의해 작동되는 액츄에이터가 전달 기어를 구동 기어와 피동 기어 사이에 맞물리도록 이동시킴으로써, 구동 기어의 회전력이 피동 기어에 전달되어 진공 펌프가 구동되는 것을 특징으로 하는 본 발명에 따른 엔진 정지시 제동력 복원 장치에 의해 달성된다.The above object is interposed between a vacuum pump connected to a power supply device, a driven gear for driving a vacuum pump, a drive gear installed on a drive shaft, and the drive gear and the driven gear to drive rotational force of the drive gear. A transmission gear for transmitting to the gear, an actuator for moving the transmission gear in the axial direction, and an electronic control unit connected to the engine and the actuator to operate the actuator according to the state of the engine, and during operation of the engine by the electronic control unit The actuated actuator moves the transmission gear out of the drive gear and the driven gear, and when the engine is stopped, the actuator operated by the electronic control unit moves the transmission gear to engage between the drive gear and the driven gear, thereby Rotational force is transmitted to the driven gear to drive the vacuum pump It is achieved by the braking force restoring apparatus at engine stop according to the present invention.

[실시예]EXAMPLE

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 일 실시예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1에 본 발명에 따른 엔진 정지시 제동력 복원 장치가 도시되어 있다.1 shows a braking force restoring apparatus for stopping an engine according to the present invention.

도시된 바와 같이, 자동차의 구동 축(1) 일측에는 구동 축(1)의 회전에 의해 함께 회전되는 구동 기어(2)가 설치되어 있다. 구동 기어(2)로부터 소정 간격을 두고 피동 기어(3)가 설치되어 있으며, 이 피동 기어(3)는 배력 장치(미도시)에 연결된 진공 펌프(4)에 연결되어 있다. 구동 기어(2)와 피동 기어(3) 사이에는 전달 기어(5)가 개재되며, 이 전달 기어(5)는 구동 기어(2)의 회전을 피동 기어(3)로 전달하는 역할을 한다.As shown, a drive gear 2 that is rotated together by the rotation of the drive shaft 1 is provided on one side of the drive shaft 1 of the vehicle. A driven gear 3 is provided at predetermined intervals from the drive gear 2, which is connected to a vacuum pump 4 connected to a power booster (not shown). A transmission gear 5 is interposed between the drive gear 2 and the driven gear 3, which transmits the rotation of the drive gear 2 to the driven gear 3.

그리고 부호 6은 액츄에이터로서, 전자 제어 유닛(7)에 의해 그 작동이 제어된다. 전자 제어 유닛(7)은 엔진(8)의 상태에 따라서 액츄에이터(6)의 작동을 제어한다. 도면에서 미설명 부호 9는 트랜스미션이다.Reference numeral 6 denotes an actuator whose operation is controlled by the electronic control unit 7. The electronic control unit 7 controls the operation of the actuator 6 in accordance with the state of the engine 8. In the drawing, reference numeral 9 denotes a transmission.

상기와 같은 구성에 의해, 자동차의 정상 주행 중에는 전자 제어 유닛(7)에 의해 제어되는 액츄에이터(6)는 전달 기어(5)를 구동 기어와 피동 기어의 사이로부터 벗어나도록 이동시키고 그 상태를 유지시킨다. 따라서, 구동 축(1)의 회전에 따라 회전되는 구동 기어(2)의 회전력은 피동 기어(3)로 전달되지 않으며, 진공 펌프(4)는 작동되지 않는다. 이러한, 정상 주행시 배력 장치(미도시)는 흡기 매니폴드의 부압에 의해 브레이크 시스템의 조작력을 증대시킨다.With the above configuration, the actuator 6 controlled by the electronic control unit 7 moves the transmission gear 5 away from between the drive gear and the driven gear and maintains the state during normal driving of the vehicle. . Therefore, the rotational force of the drive gear 2 rotated in accordance with the rotation of the drive shaft 1 is not transmitted to the driven gear 3, and the vacuum pump 4 is not operated. Such a power boosting device (not shown) increases the operating force of the brake system by the negative pressure of the intake manifold.

그런데, 만약 주행 중 엔진이 정지되면, 전자 제어 유닛(7)은 액츄에이터(6)를 작동시켜 전달 기어(5)를 구동 기어(2)와 피동 기어(3) 사이에서 맞물리도록 이동시킨다. 이때 자동차의 구동 축(1)은 계속 회전되고 있으므로, 구동 축(1)에 설치된 구동 기어(2)도 따라서 회전되고, 이 구동 기어(2)의 회전력은 전달 기어(5)를 통해 피동 기어(3)로 전달된다. 피동 기어(3)가 회전되는 것에 의해 진공 펌프(4)가 작동되어 흡기 매니폴드 대신 배력 장치에 부압을 제공하게 된다.By the way, if the engine is stopped while driving, the electronic control unit 7 operates the actuator 6 to move the transmission gear 5 to engage between the drive gear 2 and the driven gear 3. At this time, since the drive shaft 1 of the vehicle continues to rotate, the drive gear 2 provided on the drive shaft 1 is also rotated along the rotational force of the drive gear 2 through the transmission gear 5. 3) is delivered. The rotation of the driven gear 3 causes the vacuum pump 4 to act to provide negative pressure to the booster instead of the intake manifold.

상기와 같은 본 발명에 따른 엔진 정지시 제동력 복원 장치는 자동차의 주행 중 엔진이 정지되어 흡기 매니폴드의 부압이 감소되더라도 진공 펌프가 작동되어 배력 장치에 부압을 제공하여 브레이크 시스템의 제동력이 저하되는 것을 방지한다.The braking force restoring apparatus when the engine is stopped according to the present invention as described above, even if the engine is stopped while driving the vehicle, and the negative pressure of the intake manifold is reduced, the vacuum pump is operated to provide negative pressure to the power supply device so that the braking force of the brake system is lowered. prevent.

상기된 바와 같은 본 발명에 따른 엔진 정지시 제동력 복원 장치는 자동차의 주행 중 엔진이 정지되어 흡기 매니폴드의 부압이 감소되더라도 진공 펌프가 작동되어 배력 장치에 부압을 제공하여 브레이크 시스템의 제동력을 회복시키므로, 자동차의 안전성 및 브레이크 시스템의 신뢰성이 향상되는 장점이 있다.As described above, the braking force restoring apparatus when stopping the engine according to the present invention restores the braking force of the brake system by providing a negative pressure to the power booster even when the engine is stopped while the vehicle is stopped and the negative pressure of the intake manifold is reduced. In addition, the safety of the vehicle and the reliability of the brake system are improved.

Claims (1)

배력 장치에 연결되는 진공 펌프와, 진공 펌프를 구동시키기 위한 피동 기어와, 구동 축에 설치되는 구동 기어와, 상기 구동 기어와 피동 기어 사이에 개재되어 구동 기어의 회전력을 피동 기어에 전달하는 전달 기어와, 전달 기어를 축방향으로 이동시키는 액츄에이터와, 엔진 및 액츄에이터에 연결되어 엔진의 상태에 따라 액츄에이터를 작동시키는 전자 제어 유닛을 포함하며, 엔진의 작동 중에는 전자 제어 유닛에 의해 작동되는 액츄에이터가 전달 기어를 구동 기어와 피동 기어 사이에서 벗어나도록 이동시키고, 엔진이 정지되면 전자 제어 유닛에 의해 작동되는 액츄에이터가 전달 기어를 구동 기어와 피동 기어 사이에 맞물리도록 이동시킴으로써, 구동 기어의 회전력이 피동 기어에 전달되어 진공 펌프가 구동되는 것을 특징으로 하는 엔진 정지시 제동력 복원장치.A vacuum gear connected to the booster, a driven gear for driving the vacuum pump, a drive gear provided on the drive shaft, and a transmission gear interposed between the drive gear and the driven gear to transmit the rotational force of the drive gear to the driven gear. And an actuator for axially moving the transmission gear, and an electronic control unit connected to the engine and the actuator to operate the actuator according to the state of the engine, wherein an actuator operated by the electronic control unit is the transmission gear during operation of the engine. Is moved away between the drive gear and the driven gear, and when the engine is stopped, an actuator actuated by the electronic control unit moves the transmission gear to engage between the drive gear and the driven gear, so that the rotational force of the drive gear is transmitted to the driven gear. Engine stop, characterized in that the vacuum pump is driven Restore braking device.
KR1019970011462A 1997-03-29 1997-03-29 Apparatus for restoring braking power in the case of starting of engine of a motor vehicle KR100215925B1 (en)

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KR1019970011462A KR100215925B1 (en) 1997-03-29 1997-03-29 Apparatus for restoring braking power in the case of starting of engine of a motor vehicle

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KR1019970011462A KR100215925B1 (en) 1997-03-29 1997-03-29 Apparatus for restoring braking power in the case of starting of engine of a motor vehicle

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KR19980075282A true KR19980075282A (en) 1998-11-16
KR100215925B1 KR100215925B1 (en) 1999-08-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030038206A (en) * 2001-11-09 2003-05-16 기아자동차주식회사 Apparatus for a servo brake for vehicles
CN114426013A (en) * 2022-02-25 2022-05-03 江苏淮海新能源车辆有限公司 Brake booster pump for tricycle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030038206A (en) * 2001-11-09 2003-05-16 기아자동차주식회사 Apparatus for a servo brake for vehicles
CN114426013A (en) * 2022-02-25 2022-05-03 江苏淮海新能源车辆有限公司 Brake booster pump for tricycle
CN114426013B (en) * 2022-02-25 2022-10-04 江苏淮海新能源车辆有限公司 Brake booster pump for tricycle

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