KR20020047552A - Breaking System for Tracter - Google Patents

Breaking System for Tracter Download PDF

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Publication number
KR20020047552A
KR20020047552A KR1020000076034A KR20000076034A KR20020047552A KR 20020047552 A KR20020047552 A KR 20020047552A KR 1020000076034 A KR1020000076034 A KR 1020000076034A KR 20000076034 A KR20000076034 A KR 20000076034A KR 20020047552 A KR20020047552 A KR 20020047552A
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KR
South Korea
Prior art keywords
trailer
valve
brake
tractor
load
Prior art date
Application number
KR1020000076034A
Other languages
Korean (ko)
Inventor
김경필
Original Assignee
이계안
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 이계안, 현대자동차주식회사 filed Critical 이계안
Priority to KR1020000076034A priority Critical patent/KR20020047552A/en
Publication of KR20020047552A publication Critical patent/KR20020047552A/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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/26—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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/28—Valves specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses
    • B60Y2200/148—Semi-trailers, articulated vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles
    • B60Y2200/221—Tractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2300/00—Purposes or special features of road vehicle drive control systems
    • B60Y2300/28—Purposes or special features of road vehicle drive control systems related to towing or towed situations

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

Abstract

PURPOSE: A brake of a tractor is provided to supply optimal brake performance while changing load of a trailer withdrawn through a tractor. CONSTITUTION: A brake for a tractor comprises a brake pedal(310) generating brake force while being stepped on by a driver; an air tank(312) reserving operational liquid generating the brake force; a trailer supplying valve(316) supplying the operational liquid into a trailer(200); a relay valve(210) connected to the trailer supplying valve by being mounted on a trailer; a load sensing valve(314) detecting load of the brake; a control valve(318) controlling supply amount of the operational liquid; and double check valve(320) supplying the operational liquid into the trailer from the load sensing valve. Thereby, the brake for the tractor supplies optimal brake performance while changing load of the trailer withdrawn through the tractor.

Description

트랙터의 제동 장치{Breaking System for Tracter}Braking System for Tractors {Breaking System for Tracter}

본 발명은 트레일러를 견인하는 트랙터의 제동 장치에 관한 것으로서, 특히 부하감지밸브(Load Sensing Valve ; LSV)를 구비한 트랙터에 있어서, 부하의 하중에 의한 적절한 제동력을 제공하는 트랙터의 제동 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device for a tractor for towing a trailer, and more particularly, to a tractor brake device that provides an appropriate braking force by load of a load in a tractor having a load sensing valve (LSV). .

종래의 LSV 장착 트랙터의 제동장치를 도 1에 도시하였다. 도시된 바와같이, 종래의 트랙터(100)는 운전자가 브레이크 패달(100)을 밟은 경우에, 공기와 같은 작동체가 저장된 에어탱크(112)로부터 후방 브레이크(116)로 작동체가 공급되고, 제동력이 발생하게 된다.1 illustrates a conventional brake device of a LSV-equipped tractor. As shown in the drawing, the conventional tractor 100 is supplied to the rear brake 116 from the air tank 112 in which the actuator such as air is stored when the driver steps on the brake pedal 100, and a braking force is generated. Done.

한편, 트레일러(200)가 결합된 경우에는, 상기 에어탱크(112)로부터의 작동체는 상기 트레일러(200)의 릴레이 밸브(210)로도 공급되어 트레일러의 브레이크(212)에도 제동력을 제공한다.On the other hand, when the trailer 200 is coupled, the actuator from the air tank 112 is also supplied to the relay valve 210 of the trailer 200 to provide a braking force to the brake 212 of the trailer.

그러나, 상기한 종래의 제동 장치에 의하면, 트레일러(200)의 하중의 변화에 무관하게 일정량의 작동체가 트레일러(200)로 공급되도록 되어 있어, 그 하중에 의한 부하가 정상치로부터 크게 변화하는 경우에는 브레이크의 잠김 현상이 발생하는 등 적절한 제동 능력을 발휘하지 못하는 문제점이 있었다.However, according to the conventional braking device described above, regardless of the change in the load of the trailer 200, a certain amount of actuator is supplied to the trailer 200, and the brake is applied when the load caused by the load greatly changes from the normal value. There was a problem in that proper braking ability was not exhibited, such as the locking phenomenon.

본 발명은 상기의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 트레일러의 하중의 변화 등 부하량의 변하에 대응하여 최적의 제동 능력을 발휘할 수 있는 제동 장치를 제공하는 것이다.SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a braking device capable of exerting an optimum braking ability in response to a change in load, such as a change in load of a trailer.

도 1은 종래의 트랙터의 제동 장치를 개념적으로 도시한 블럭도.1 is a block diagram conceptually showing a brake device of a conventional tractor;

도 2는 본 발명에 의한 트랙터의 제동 장치를 개념적으로 도시한 블럭도.Figure 2 is a block diagram conceptually showing a brake device of a tractor according to the present invention.

*도면의 주요부분의 기호의 설명* Explanation of symbols in the main parts of the drawings

100 : 트랙터110 : 브레이크 패달100: tractor 110: brake pedal

112, 312 : 에어탱크114, 314 : 부하감지밸브112, 312: Air tank 114, 314: Load sensing valve

116, 330 : 후방 브레이크200 : 트레일러116, 330: rear brake 200: trailer

210 : 릴레이 밸브212 : 트레일러 브레이크210: relay valve 212: trailer brake

300 : 트랙터의 제동 장치300: brake device of the tractor

상기의 목적을 달성하기 위하여, 본 발명은 트레일러를 견인할 수 있는 트랙터의 제동 장치에 있어서, 운전자가 브레이크 패달을 밟을 때 제동력을 발생시키기 위한 작동체를 저장하는 에어탱크; 상기 에어탱크로부터의 작동체를 상기 트레일러로 전달하되, 상기 트레일러가 설치된 경우에 트레일러의 릴레이 밸브와 연결되는 트레일러 공급 밸브; 부하의 크기를 감지하여 동작하며, 상기 트랙터의 브레이크로작동체를 공급하는 부하감지밸브; 상기 부하감지밸브로부터의 작동압에 응답하여 상기 에어탱크로부터 상기 트레일러 공급 밸브로 공급되는 작동체의 공급량을 조절하는 제어밸브; 상기 부하감지밸브로부터의 작동압에 응답하여 상기 부하감지밸브로부터의 작동체를 상기 트레일러로 공급하되, 상기 트레일러가 설치된 경우에 트레일러의 릴레이 밸브와 연결되는 이중체크밸브를 포함하는 트랙터의 제동 장치를 제공한다.In order to achieve the above object, the present invention provides a brake device for a tractor capable of towing a trailer, comprising: an air tank for storing an actuator for generating a braking force when a driver steps on a brake pedal; A trailer supply valve for delivering an actuator from the air tank to the trailer, the trailer supply valve being connected to a trailer relay valve when the trailer is installed; A load sensing valve which operates by sensing a magnitude of a load and supplies an actuator to the brake of the tractor; A control valve for controlling a supply amount of an actuator supplied from the air tank to the trailer supply valve in response to an operating pressure from the load sensing valve; A brake device for a tractor including a double check valve connected to a relay valve of a trailer when the trailer is installed, the actuator from the load sensing valve being supplied to the trailer in response to the operating pressure from the load sensing valve; to provide.

이제, 첨부된 도면 도 2를 참조하여 본 발명에 의한 트랙터의 제동 장치를 상세히 설명한다. 도 2는 본 발명에 의한 트랙터의 제동 장치를 개념적으로 도시한 도면이다. 도시된 바와 같이, 본 발명에 의한 트랙터의 제동 장치(300)는, 운전자가 브레이크 패달(310)을 밟을 때 제동력을 발생시키기 위한 작동체를 저장하는 에어탱크(312)와, 상기 에어탱크(312)로부터의 작동체를 트레일러(200)로 전달하는 트레일러 공급 밸브(316)를 포함한다. 상기 트레일러 공급 밸브(316)는 트레일러(200)가 설치된 경우에 트레일러의 릴레이 밸브(210)와 연결된다.Now, the brake device of the tractor according to the present invention will be described in detail with reference to the accompanying drawings. 2 is a view conceptually illustrating a brake device of a tractor according to the present invention. As shown, the tractor brake device 300 according to the present invention includes an air tank 312 for storing an actuator for generating a braking force when the driver steps on the brake pedal 310, and the air tank 312. A trailer feed valve 316 for delivering the actuator from the vehicle to the trailer 200. The trailer supply valve 316 is connected to the relay valve 210 of the trailer when the trailer 200 is installed.

또한, 상기 본 발명의 트랙터의 제동장치(300)는, 부하의 크기를 감지하여 동작하는 부하감지밸브(314)와, 상기 부하감지밸브(314)로부터의 작동압에 의하여 상기 에어탱크(312)로부터 상기 트레일러 공급 밸브(316)로 공급되는 작동체의 공급량을 조절하는 제어밸브(318)와, 상기 부하감지밸브(314)로부터의 작동압에 의하여 상기 부하감지밸브(314)로부터의 작동체를 상기 트레일러(200)로 공급하는 이중체크밸브(320)를 포함한다. 상기 이중체크밸브(320)도 트레일러(200)가 설치된 경우에 트레일러의 릴레이 밸브(210)와 연결된다.In addition, the brake device 300 of the tractor of the present invention, the load sensing valve 314 that operates by sensing the size of the load, and the air tank 312 by the operating pressure from the load sensing valve 314 A control valve 318 for regulating the supply amount of the actuator supplied to the trailer supply valve 316 from the vehicle, and the actuator from the load sensing valve 314 by the operating pressure from the load sensing valve 314. It includes a double check valve 320 to supply to the trailer (200). The double check valve 320 is also connected to the relay valve 210 of the trailer when the trailer 200 is installed.

다음으로, 상기와 같은 구성의 본 발명에 의한 트랙터의 제동 장치(300)의 동작을 상세히 설명한다.Next, the operation of the brake device 300 of the tractor according to the present invention having the above configuration will be described in detail.

먼저, 상기 부하감지밸브(300)가 감지한 부하량이 미리 설정된 정상 동작 범위내인 경우에는, 운전자가 상기 브레이크 패달(310)을 밟은 경우에 상기 에어탱크(312)로부터의 작동체는 상기 트레일러 공급 밸브(316)를 통하여 상기 트레일러(200)의 릴레이 밸브(210)로 공급된다.First, when the load detected by the load sensing valve 300 is within a preset normal operating range, the actuator from the air tank 312 is supplied to the trailer when the driver steps on the brake pedal 310. The valve 316 is supplied to the relay valve 210 of the trailer 200.

그러나, 상기 부하감지밸브(314)가 감지한 부하량이 상기 정상 동작 범위보다 크거나 작아서 브레이크의 작동압을 가감할 필요가 있는 경우에는 다음과 같이 작동압을 증가시키는 경우와 감소시키는 경우로 구분하여 동작한다.However, when the load detected by the load detection valve 314 is larger or smaller than the normal operating range, and the operating pressure of the brake needs to be added or decreased, the operation pressure is increased and decreased as follows. It works.

즉, 작동압을 감소시키는 경우에는, 상기 부하감지밸브(314)에 의하여 감지된 작동압에 응답하여 상기 제어밸브(318)가 작동함으로써, 상기 에어탱크(312)로부터 상기 트레일러 공급 밸브(316)에 공급되는 작동체의 공급량을 감소시킨다.That is, in the case of reducing the operating pressure, the control valve 318 operates in response to the operating pressure sensed by the load sensing valve 314, so that the trailer supply valve 316 from the air tank 312 is operated. Reduce the amount of actuator supplied to the

한편, 작동압을 증가시키는 경우에는, 상기 부하감지밸브(314)에 의하여 감지된 작동압에 응답하여 상기 이중체크밸브(320)가 작동함으로써, 상기 부하감지밸브(314)를 통과한 작동체를 상기 트레일러(200)의 릴레이 밸브(210)로 추가적으로 공급한다.On the other hand, in the case of increasing the operating pressure, the double check valve 320 operates in response to the operating pressure detected by the load sensing valve 314, thereby operating the actuator passing through the load sensing valve 314 Further supply to the relay valve 210 of the trailer 200.

상기와 같은 동작에 의하여 트랙터의 브레이크(330)와 트레일러(200)의 브레이크(212)에 작동하는 제동력을 각각 그에 작용하는 부하의 크기에 따라 적절히 증감시킬 수 있다.By the above operation, the braking force acting on the brake 330 of the tractor and the brake 212 of the trailer 200 can be appropriately increased or decreased according to the magnitude of the load acting on the respective brake.

본 발명에 의한 트랙터의 제동 장치에 의하면, 트랙터가 견인하는 트레일러의 하중이 크게 변화하는 등 부하의 크기에 변화가 생기는 경우에도 그에 적합한 최적의 제동능력을 제공할 수 있다.According to the brake device of the tractor according to the present invention, even when a change in the size of the load occurs, such as a large change in the load of the trailer towed by the tractor, it is possible to provide an optimum braking capacity suitable for it.

Claims (3)

트레일러를 견인할 수 있는 트랙터의 제동 장치에 있어서,In the brake device of a tractor capable of towing a trailer, 운전자가 브레이크 패달을 밟을 때 제동력을 발생시키기 위한 작동체를 저장하는 에어탱크;An air tank storing an actuator for generating braking force when the driver presses the brake pedal; 상기 에어탱크로부터의 작동체를 상기 트레일러로 전달하되, 상기 트레일러가 설치된 경우에 트레일러의 릴레이 밸브와 연결되는 트레일러 공급 밸브;A trailer supply valve for delivering an actuator from the air tank to the trailer, the trailer supply valve being connected to a trailer relay valve when the trailer is installed; 부하의 크기를 감지하여 동작하며, 상기 트랙터의 브레이크로 작동체를 공급하는 부하감지밸브;A load sensing valve operating by sensing a magnitude of a load and supplying an actuator to the brake of the tractor; 상기 부하감지밸브로부터의 작동압에 응답하여 상기 에어탱크로부터 상기 트레일러 공급 밸브로 공급되는 작동체의 공급량을 조절하는 제어밸브;A control valve for controlling a supply amount of an actuator supplied from the air tank to the trailer supply valve in response to an operating pressure from the load sensing valve; 상기 부하감지밸브로부터의 작동압에 응답하여 상기 부하감지밸브로부터의 작동체를 상기 트레일러로 공급하되, 상기 트레일러가 설치된 경우에 트레일러의 릴레이 밸브와 연결되는 이중체크밸브를 포함하는 트랙터의 제동 장치.And a double check valve for supplying an actuator from the load sensing valve to the trailer in response to an operating pressure from the load sensing valve, wherein the double check valve is connected to a relay valve of the trailer when the trailer is installed. 제1항에 있어서,The method of claim 1, 상기 제어밸브는, 상기 부하감지밸브에 의하여 감지된 작동압에 응답하여 상기 에어탱크로부터 상기 트레일러 공급 밸브로 공급되는 작동체의 공급량을 감소시키는 트랙터의 제동 장치.The control valve, the brake device of the tractor to reduce the supply amount of the actuator supplied to the trailer supply valve from the air tank in response to the operating pressure sensed by the load sensing valve. 제1항에 있어서,The method of claim 1, 상기 이중체크밸브는, 상기 부하감지밸브에 의하여 감지된 작동압에 응답하여 상기 부하감지밸브를 통과한 작동체를 상기 트레일러의 릴레이 밸브로 추가적으로 공급하는 트랙터의 제동 장치.The double check valve, the brake device of the tractor for supplying the actuator passed through the load sensing valve in response to the operating pressure detected by the load sensing valve to the relay valve of the trailer.
KR1020000076034A 2000-12-13 2000-12-13 Breaking System for Tracter KR20020047552A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180138338A (en) 2017-06-21 2018-12-31 엘에스엠트론 주식회사 Agricultural work vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07228240A (en) * 1994-02-18 1995-08-29 Sanwa Seiki Co Ltd Retarder device for trailer
JPH0891186A (en) * 1994-09-21 1996-04-09 Akebono Brake Res & Dev Center Ltd Brake control device of trailer
KR0126913B1 (en) * 1988-11-19 1998-04-07 마이클 알버트 카리 Trailer brake control for towing vehicles having electronic brake control

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0126913B1 (en) * 1988-11-19 1998-04-07 마이클 알버트 카리 Trailer brake control for towing vehicles having electronic brake control
JPH07228240A (en) * 1994-02-18 1995-08-29 Sanwa Seiki Co Ltd Retarder device for trailer
JPH0891186A (en) * 1994-09-21 1996-04-09 Akebono Brake Res & Dev Center Ltd Brake control device of trailer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180138338A (en) 2017-06-21 2018-12-31 엘에스엠트론 주식회사 Agricultural work vehicle

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