KR20030006366A - a return force decreasing device for electronic accel pedal of vehicles - Google Patents
a return force decreasing device for electronic accel pedal of vehicles Download PDFInfo
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- KR20030006366A KR20030006366A KR1020010042079A KR20010042079A KR20030006366A KR 20030006366 A KR20030006366 A KR 20030006366A KR 1020010042079 A KR1020010042079 A KR 1020010042079A KR 20010042079 A KR20010042079 A KR 20010042079A KR 20030006366 A KR20030006366 A KR 20030006366A
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- pedal
- accelerator pedal
- bush
- spring
- housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
- B60K26/021—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
- B60K26/021—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics
- B60K2026/023—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements with means for providing feel, e.g. by changing pedal force characteristics with electrical means to generate counter force or torque
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
Description
본 발명은 자동차용 전자식 액셀페달의 복귀력 저감장치에 관한 것으로, 특히 액셀페달의 복귀력을 저감시킴으로써 장시간 운전시 발목피로를 덜어 줄 수 있도록 된 자동차용 전자식 액셀페달의 복귀력 저감장치에 관한 것이다.The present invention relates to an apparatus for reducing the return force of an electronic accelerator pedal for an automobile, and more particularly, to an apparatus for reducing the return force of an electronic accelerator pedal for an automobile that can reduce ankle fatigue during long driving by reducing the return force of an accelerator pedal. .
일반적으로 자동차의 액셀페달은 케이블을 통하여 스로틀밸브를 직접 조작하는 기계식으로 이루져 있으나, 근래에는 센서를 설치하여 조작상태를 감지하고 이 조작상태에 따라 별도의 액튜에이터를 작동시킴으로써 스로틀밸브의 개도를 제어할 수 있도록 된 전자식 액셀페달의 적용도 늘어나고 있다.In general, the accelerator pedal of a car is made of a mechanical type that directly operates a throttle valve through a cable. However, in recent years, a sensor is installed to detect an operation state and a separate actuator is operated according to the operation state to control the opening of the throttle valve. The application of electronic accelerator pedals that can be used is increasing.
도 1은 기계식 액셀페달과 전자식 액셀페달의 답력선도로서, 얇은 실선으로 도시된 것이 기계식 액셀페달의 답력선도(a)이고, 굵은 점선으로 도시된 것이 전자식 액셀페달의 답력선도(b)이다.(상하의 얇은 일점쇄선은 조작성목표영역(c)을 나타낸다.)Fig. 1 is a step-by-step diagram of a mechanical accelerator pedal and an electronic accelerator pedal, in which a thin solid line is a step-by-step diagram of a mechanical accelerator pedal (a), and a bold dotted line is a step-by-step diagram of an electronic accelerator pedal (b). Upper and lower thin one-dot chain lines indicate operability target area (c).)
도시된 바와 같이, 전자식 액셀페달의 경우에는 케이블이 연결되어 있지 않아 케이블의 습동저항이 발생하지 않으므로 기계식 액셀페달에 비하여 답력효율이 좋음을 알 수 있다.As shown, in the case of the electronic accelerator pedal, since the cable is not connected and the sliding resistance of the cable does not occur, it can be seen that the stepping efficiency is better than that of the mechanical accelerator pedal.
따라서, 작은 힘으로 액셀페달을 밟을 수 있다.Therefore, the accelerator pedal can be stepped on with a small force.
그러나, 액셀페달을 밟은 후 놓을 때는 케이블에 의한 습동저항이 없는 관계로 리턴스프링의 힘이 최대한 발휘되어 액셀페달의 복귀력이 지나치게 강하므로 액셀페달에서 놓을 때도 발목에 힘을 줄 수 밖에 없는 상황이 된다.However, when the pedal is released after stepping on the pedal, there is no sliding resistance by the cable, so the return spring is fully exerted, and the return force of the accelerator pedal is too strong. do.
따라서, 장시간 운행할때에는 발목에 상당한 무리가 오며, 이는 피로감을 가중시키는 원인이 되는 문제점이 있었다.Therefore, when running for a long time, a significant amount comes to the ankle, which has a problem that causes increased fatigue.
또한, 액셀페달을 밟을 때와 액셀페달을 놓을 때의 답력차이가 작기 때문에--답력선도에서 상부의 팁인(tip in)선과 하부의 팁아웃(tip out)선의 간격이 좁다--페달이 민감하여 특히 차량 흔들림이 심한 비포장로 등에서의 제어가 어려워지는 문제점도 있었다.Also, because the step difference between stepping on the accelerator pedal and placing the accelerator pedal is small--the gap between the tip in line at the top and the tip out line at the bottom of the pedal diagram is sensitive--the pedal is sensitive. In particular, there was a problem in that it is difficult to control the dirt road, such as severe vehicle shake.
따라서, 리턴스프링의 스프링상수를 작게 하여 액셀페달의 복귀력을 감소시킬 수는 있으나, 이처럼 단순히 리턴스프링의 스프링상수를 조절하여 액셀페달의 복귀력을 작게 하는 경우에는 팁인시의 페달 답력이 동반 저하되어 액셀페달이 지나치게 민감해지며, 이 또한 액셀페달의 조작성을 저하시키는 것이어서 바람직한 해결책은 될 수 없었다.Therefore, it is possible to reduce the return force of the accelerator pedal by reducing the spring constant of the return spring.However, in the case of reducing the return force of the accelerator pedal by simply adjusting the spring constant of the return spring, the pedal effort at the time of tip-in decreases. The accelerator pedal becomes excessively sensitive, and this also lowers the operability of the accelerator pedal and thus cannot be a preferable solution.
이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 액셀페달의 팁인시 답력은 줄지 않으면서 팁아웃시 답력은 줄어들 수 있게 됨으로써 장시간 운전하여도 발목에 피로가 덜 오며, 조작성이 향상될 수 있도록 된 자동차용 전자식 액셀페달의 복귀력 저감장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above problems, the answer can be reduced at the time of tip out without reducing the tip-pedal response of the accelerator pedal, less fatigue on the ankle even after long driving, and improved operability It is an object of the present invention to provide a device for reducing the return force of an electronic accelerator pedal for automobiles.
도 1은 일반적인 자동차의 기계식 액셀페달과 전자식 액셀페달의 답력선도,1 is a step diagram of the mechanical accelerator pedal and the electronic accelerator pedal of a typical vehicle;
도 2는 본 발명에 따른 액셀페달 복귀력 저감장치의 장착상태도,2 is a mounting state of the accelerator pedal return force reducing device according to the present invention,
도 3은 도 2의 Ⅰ-Ⅰ선 단면도로서, 본 발명에 따른 액셀페달 복귀력 저감장치의 페달 밟기 전 상태도,3 is a cross-sectional view taken along the line I-I of FIG. 2, showing a state before the pedal of the accelerator pedal return force reducing device according to the present invention;
도 4는 본 발명에 따른 액셀페달 복귀력 저감장치의 페달 밟은 후 상태도,4 is a state diagram after pedaling the accelerator pedal return force reducing device according to the present invention,
도 5는 종래 전자식 액셀페달과 본 발명에 따른 복귀력 저감장치가 장착된 전자식 액셀페달의 답력선도이다.5 is a step-up diagram of an electronic accelerator pedal equipped with a conventional electronic accelerator pedal and a return force reducing device according to the present invention.
*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
1 : 페달아암,2 : 힌지파이프,1: pedal arm, 2: hinge pipe,
2a : 돌출곡면부,3 : 리턴스프링,2a: protruding curved portion, 3: return spring,
4 : 브라켓,5 : 복귀력 저감장치,4: bracket, 5: return force reducing device,
5a : 스틸볼,5b : 하우징,5a: steel ball, 5b: housing,
5c : 부시,5d : 스프링.5c: bush, 5d: spring.
상기와 같은 목적을 달성하기 위한 본 발명은, 페달아암에 장착된 하우징과, 이 하우징 내부의 가이드홀을 따라 상하이동되는 부시와, 이 부시를 지지하는 스프링과, 상기 페달아암 장착용 힌지파이프에 형성된 돌출곡면부와, 상기 부시에 수용되어 상기 돌출곡면부에 접촉되는 스틸볼로 이루어진다.In order to achieve the above object, the present invention provides a housing mounted to a pedal arm, a bush moving along a guide hole inside the housing, a spring supporting the bush, and a hinge pipe for mounting the pedal arm. And a protruding curved portion formed and a steel ball accommodated in the bush and in contact with the protruding curved portion.
따라서, 페달아암 복귀시에는 상기 스프링을 압축하여야만 하므로 리턴스프링의 복원력이 상쇄되므로 액셀페달의 복귀력이 저감된다.Therefore, when the pedal arm returns, the spring must be compressed, so that the restoring force of the return spring is canceled, thereby reducing the return force of the accelerator pedal.
이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.
도 2는 본 발명에 따른 액셀페달 복귀력 저감장치의 장착상태도로서, 페달아암(1)이 힌지파이프(2)를 매개로 회동가능하도록 고정되고, 이 힌지파이프(2)에 리턴스프링(3)이 설치되어, 이 리턴스프링(3)의 상단(3a)은 브라켓(4)에 걸려지고 하단(3b)은 페달아암(1)에 걸려지는 구조로 이루어져 리턴스프링(3)에 의한 페달아암(1)의 복귀가 가능하도록 된 액셀페달의 상부구조에 있어서, 상기 힌지파이프(2)에 돌출곡면부(2a)가 형성되고, 이 돌출곡면부(2a)에 접촉되는 스틸볼(5a)을 갖춘 복귀력 저감장치(5)가 페달아암(1)에 장착되는 구조로 이루어진다.FIG. 2 is a state diagram of an accelerator pedal return force reducing device according to the present invention, in which a pedal arm 1 is rotatably fixed via a hinge pipe 2 and a return spring 3 is connected to the hinge pipe 2. The upper end 3a of the return spring 3 is hooked to the bracket 4 and the lower end 3b is hooked to the pedal arm 1 so that the pedal arm 1 by the return spring 3 is provided. In the upper structure of the accelerator pedal to enable the return of a), a protruding curved portion 2a is formed in the hinge pipe 2, and a return having a steel ball 5a in contact with the protruding curved portion 2a. The force reducing device 5 is configured to be mounted to the pedal arm 1.
상기 복귀력 저감장치(5)는 도 3에 도시된 바와 같이, 내부에 가이드홀(5b′)이 형성되고 상기 페달아암(1)의 측면에 고정되는 하우징(5b)과, 이 하우징(5b)의 가이드홀(5b′)에서 상하이동되는 부시(5c)와, 이 부시(5c)에 수용되는 상기 스틸볼(5a) 및, 가이드홀(5b′)에 내장되어 부시(5c)를 탄성지지하는 스프링(5 d)으로 구성되며, 상기 힌지파이프(2)에 형성된 돌출곡면부(2a)는 힌지파이프(2) 외주면의 우측 접점부터 상부 접점을 지나는 범위에 형성되며, 힌지파이프(2)의 중심으로부터 반경방향의 길이가 점차 늘어나는 형상으로 형성된다.As shown in FIG. 3, the return force reducing device 5 includes a housing 5b having a guide hole 5b 'formed therein and fixed to a side surface of the pedal arm 1, and the housing 5b. A bush 5c which is moved in and out of the guide hole 5b ', the steel ball 5a accommodated in the bush 5c and the guide hole 5b' are elastically supporting the bush 5c. Consists of a spring (5 d), the protruding curved portion (2a) formed in the hinge pipe (2) is formed in the range from the right contact to the upper contact of the outer peripheral surface of the hinge pipe (2), the center of the hinge pipe (2) The radial length is formed from the gradually increasing shape.
즉, 힌지파이프(2) 우측 접점부분에서는 높이가 0이며, 반시계방향으로 돌아갈수록 그 높이가 높아지는 형상으로 되어 있다.That is, the height is 0 at the right contact portion of the hinge pipe 2, and the height is increased as it is turned counterclockwise.
이하, 본 발명의 작용 및 효과를 설명하기로 한다.Hereinafter, the operation and effects of the present invention will be described.
도 3에 도시된 상태는 운전자가 액셀페달을 밟지 않은 상태로서, 상기 스틸볼(5a)이 돌출곡면부(2a)의 상단에 접촉해 있으며, 이 상태에서 상기 스프링(5d)은 압축된 상태로서 탄성반력에 의해 밀려지는 부시(5c)가 스틸볼(5a)을 돌출곡면부(2a)쪽으로 밀어 붙이고 있는 상태이다.3 is a state in which the driver does not step on the accelerator pedal, and the steel ball 5a is in contact with the upper end of the protruding curved portion 2a. In this state, the spring 5d is compressed. The bush 5c pushed by the elastic reaction force pushes the steel ball 5a toward the protruding curved portion 2a.
이와 같은 상태에서 운전자가 액셀페달을 밟으면 페달아암(1)이 시계방향으로 회전되므로 이에 장착된 상기 하우징(5b)이 동일한 방향으로 회전되어 돌출곡면부(2a)의 초기위치까지 이동되며, 이때 스프링(5d)의 신장력에 의해 상기 스틸볼(5a)은 계속 돌출곡면부(2a)에 접해 있게 된다.In this state, when the driver presses the accelerator pedal, the pedal arm 1 is rotated in the clockwise direction so that the housing 5b mounted thereto is rotated in the same direction to move to the initial position of the protruding curved portion 2a. By the stretching force of 5d, the steel ball 5a continues to contact the protruding curved portion 2a.
이후, 운전자가 액셀페달에서 발을 떼면 상기 리턴스프링(3)의 수축력에 의해 페달아암(1)이 반시계방향으로 회전되어 하우징(5b)이 도 3의 초기상태로 복귀하게 되는데, 이 과정에서는 높이가 높아지는 돌출곡면부(2a)의 표면을 이동하는 스틸볼(5a)의 위치변동 때문에 부시(5c)가 가이드홀(5b′)의 내부로 밀려들어가면서 스프링(5d)을 압축하게 되므로, 이 압축작용에 대한 스프링(5d)의 반력이 페달아암(1) 복귀를 방해하게 된다.Subsequently, when the driver releases the accelerator pedal, the pedal arm 1 is rotated counterclockwise by the contracting force of the return spring 3 so that the housing 5b returns to the initial state of FIG. 3. The compression of the spring 5d is caused by the bush 5c being pushed into the guide hole 5b 'due to the positional change of the steel ball 5a moving on the surface of the protruding curved portion 2a, which increases in height. The reaction force of the spring 5d against the action prevents the pedal arm 1 from returning.
즉, 상기 스프링(5d)의 반력만큼 리턴스프링(3)에 의한 페달아암(1)의 복귀력이 감쇄되므로 운전자의 발목에 부담이 덜 가도록 된 것이다.That is, since the return force of the pedal arm 1 by the return spring 3 is reduced by the reaction force of the spring 5d, the burden on the driver's ankle is reduced.
이와 같은 액셀페달의 답력선도가 도 5에 도시되어 있다.The pedal line of the accelerator pedal is shown in FIG. 5.
굵은 점선으로 나타난 것은 종래 전자식 액셀페달의 답력선도(b)이고, 굵은 실선으로 나타난 것이 본 발명에 따른 복귀력 저감장치가 적용된 전자식 액셀페달의 답력선도(d)로서, 페달아암(1)이 복귀될때의 답력특성을 나타낸 선인 하측선이종래경우(b)에 비하여 하강한 것으로 보아 본원발명을 적용한 경우(d)에 페달아암(1)의 복귀력이 감소하였음을 알 수 있다.The thick dashed line shows the step-by-step diagram of the conventional electronic accelerator pedal (b), and the thick solid line shows the step-down diagram of the electronic accelerator pedal to which the return force reducing device according to the present invention is applied, and the pedal arm 1 returns. When the lower line, which is a line showing the stepping force characteristic when it is lowered compared to the conventional case (b), it can be seen that the return force of the pedal arm 1 is reduced when the present invention is applied (d).
따라서, 운전자의 발목에 부담이 덜 가게 되었으며, 또한 팁인시(상측선)와 팁아웃시(하측선)의 간격이 넓어졌으므로 액셀페달의 민감도가 적정수준으로 저하되어 조작성이 향상된다.Accordingly, the driver's ankle is less burdened, and the interval between tip in (upper line) and tip out (lower line) is widened, so the sensitivity of the accelerator pedal is lowered to an appropriate level, thereby improving operability.
한편, 액셀페달을 밟을때 상기 스프링(5b)은 단순히 압축상태에서 본래의 상태로 신장되는 것으로서 액셀페달 팁인시 답력에 거의 영향을 주지 않으므로(도면에서 종래의 답력선도(b)와 본 발명의 답력선도(d)의 상측선이 서로 겹쳐있는 것에서 이를 확인할 수 있다.), 액셀페달의 팁인시 답력에는 변화가 없다.On the other hand, when stepping on the accelerator pedal, the spring 5b is simply elongated in its original state in a compressed state and thus has little influence on the pedaling force of the accelerator pedal tip (the conventional stepping force diagram (b) and the stepping force of the present invention in the drawing). This can be confirmed by the fact that the upper line of the line (d) overlaps each other).
즉, 팁인시의 페달답력은 저하시키지 않으면서 팁아웃시의 페달답력만을 감소시킬 수 있게 됨으로써 팁인시 페달답력 저하로 인한 조작성의 저하를 일으키지 않게 된다.In other words, it is possible to reduce only the pedal response at the tip-out without degrading the pedal response at the tip-in, so as not to reduce the operability due to the decrease in the pedal-answer at the tip-in.
한편, 상기 스틸볼(5a)은 돌출곡면부(2a)와의 접촉면상에서 자유로이 이동하면서 부시(5c)를 상하이동시키는 것이 그 역할이므로, 로울러 및 그 외 미끄럼시 마찰저항이 작은 여타의 부재 등으로 대체될 수 있다.On the other hand, since the steel ball (5a) is to move the bush (5c) while moving freely on the contact surface with the protruding curved portion (2a), it is replaced by rollers and other members having a low frictional resistance when sliding Can be.
또한, 본 발명은 상기 하우징(5b)의 가이드홀(5b′) 형상, 스프링(5d)의 스프링상수, 힌지파이프(2)에 형성된 돌출곡면부(2a)의 형상을 변경하여 페달아암(1)이 복귀될 때 나타나는 반력특성을 의도한 바대로 변경조정할 수 있으므로 액셀페달의 복귀력을 저감시키는 장치 뿐만 아니라, 다른 페달류 즉, 브레이크페달이나 클러치페달의 팁아웃시 답력특성을 개선하는 장치로서 응용될 수 있음은 물론이다.In addition, the present invention changes the shape of the guide hole (5b ') of the housing (5b), the spring constant of the spring (5d), the shape of the protruding curved portion (2a) formed in the hinge pipe (2) pedal arm (1) Since the reaction force characteristics appearing upon returning can be changed and adjusted as intended, it is not only a device for reducing the return force of the accelerator pedal, but also applied as a device for improving the pedaling characteristics at the tip-out of other pedals, that is, a brake pedal or a clutch pedal. Of course it can be.
이상 설명한 바와 같이 본 발명은, 액셀페달을 밟을때의 적절한 답력수준을 유지하면서도 액셀페달을 놓을 때의 페달 복귀력은 감소시킬 수 있게 됨으로써 액셀페달의 조작성 저하를 야기하지 않으면서 팁아웃시 운전자의 발목에 가해지는 부담정도를 저하시킬 수 있게 되는 효과가 있다.As described above, the present invention can reduce the pedal return force when releasing the accelerator pedal while maintaining the proper level of pedaling when the accelerator pedal is pressed, thereby causing the driver's ankle when tipping out without causing deterioration of the operability of the accelerator pedal. There is an effect that can reduce the degree of burden applied to.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0042079A KR100410751B1 (en) | 2001-07-12 | 2001-07-12 | a return force decreasing device for electronic accel pedal of vehicles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0042079A KR100410751B1 (en) | 2001-07-12 | 2001-07-12 | a return force decreasing device for electronic accel pedal of vehicles |
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| Publication Number | Publication Date |
|---|---|
| KR20030006366A true KR20030006366A (en) | 2003-01-23 |
| KR100410751B1 KR100410751B1 (en) | 2003-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR10-2001-0042079A KR100410751B1 (en) | 2001-07-12 | 2001-07-12 | a return force decreasing device for electronic accel pedal of vehicles |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100491727B1 (en) * | 2002-09-16 | 2005-05-27 | 엘지전자 주식회사 | Apparatus and method for Automatic gain control |
| KR100614525B1 (en) * | 2005-08-22 | 2006-08-28 | (주) 동희산업 | Adjusting apparatus with a reaction force of an accelerator pedal |
-
2001
- 2001-07-12 KR KR10-2001-0042079A patent/KR100410751B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100491727B1 (en) * | 2002-09-16 | 2005-05-27 | 엘지전자 주식회사 | Apparatus and method for Automatic gain control |
| KR100614525B1 (en) * | 2005-08-22 | 2006-08-28 | (주) 동희산업 | Adjusting apparatus with a reaction force of an accelerator pedal |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100410751B1 (en) | 2003-12-18 |
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