JP4385176B2 - Accelerator operating resistance generator - Google Patents

Accelerator operating resistance generator Download PDF

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Publication number
JP4385176B2
JP4385176B2 JP2000023524A JP2000023524A JP4385176B2 JP 4385176 B2 JP4385176 B2 JP 4385176B2 JP 2000023524 A JP2000023524 A JP 2000023524A JP 2000023524 A JP2000023524 A JP 2000023524A JP 4385176 B2 JP4385176 B2 JP 4385176B2
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braking
accelerator
resistance
accelerator pedal
cam member
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JP2001214763A (en
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義晴 中
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Nikki Co Ltd
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Nikki Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は運転者のアクセル操作量に応じてエンジン出力制御用機器を間接または直接に動作させるシステムにおいて、アクセル操作に適度の抵抗を与え違和感のない運転を行なわせるためのアクセル操作抵抗発生装置に関するものである。
【0002】
【従来の技術】
エンジン出力制御用機器であるガソリンエンジンにおける吸気絞り弁やディーゼルエンジンにおける噴射ポンプのプランジャを運転席の足元に設置されているアクセルペダルとワイヤケーブルで連結し、運転者のアクセル操作に応じてワイヤケーブルを介し直接動作させるという機械的伝達手段のみによるシステムに代えて、アクセル操作量をアクセルセンサにより電気信号に変換してアクチュエータを駆動することにより動作させるという電気的伝達手段を併用または単独使用して間接動作させるというシステムが開発され、一部の自動車で実用化されている。
【0003】
アクセルセンサはアクセル操作量に比例して電気抵抗値を変えるポテンショメータを利用したものが一般的であり、アクセルペダルの近くに設置される。そして、円弧状の抵抗体に接触させたブラシを保持した中心軸は、アクセルペダルと短かいワイヤケーブルを介して連動させるか、またはアクセルペダルを固結させた支軸に直結して連動させるようにしている。
【0004】
【発明が解決しようとする課題】
アクセルペダルとエンジン出力制御用機器とをワイヤケーブルで連結したものは、一般的に長大なワイヤケーブルをパイプなどの案内に沿って配置しており、アクセルペダルを踏み込むときに相応の抵抗を受ける。
【0005】
これに対して、アクセルペダルとアクセルセンサとを短かいワイヤケーブルで連結したもの、或いはワイヤケーブルを用いないで直結したものは、アクセルペダル踏み込みに対する抵抗がきわめて小さく、従前の長大なワイヤケーブルを用いたものに慣れ親しんだ運転者に違和感を与え、踏み力が軽減された分だけ余分に踏み込んで思わぬ加速を生じ事故を招いたり、踏み込みをためらって運転性を損なう、などの不都合を生じる原因となる。
【0006】
また、エンジンルーム内のレイアウトによってエンジン出力制御用機器が従前のものよりもアクセルペダルに接近する場合のあることも充分に予測され、この場合はアクセルペダルと短かいワイヤケーブルで連結した機器的伝達手段で直接動作させることが考えられ、このものも踏み力が軽減されて前記同様の不都合を生じる心配がある。
【0007】
その対策として、エンジン出力制御用機器を直接または間接に駆動する回転軸に円板を固定してその表面に押当て部材をばねにより常時弾性的に圧接させることにより、踏み力に対する抵抗を与えて違和感をなくすようにしたものが特開平9−280076号公報に開示されている。
【0008】
このものは、周知のデイスクブレーキの機構を応用してアクセルペダルの踏み込み時および戻し時のいずれにおいても抵抗力を加えるようにしたものであるが、構造的に部品点数が多く、また設置場所に制限を受けるという不便さがある。
【0009】
本発明は運転者のアクセル操作を短かいワイヤケーブルを介し、或いは介することなく直接エンジン出力制御用機器またはアクセルセンサの回転部分に伝達するとき、従前の長大なワイヤケーブルを用いたものと同程度のアクセルペダル踏み力を必要とさせ、従って違和感のないアクセル操作を行なうことができ前記の課題を伴わないものとする、構造簡単にして設置場所の制限を受けることが少ない抵抗発生装置を提供することを目的としてなされたものである。
【0010】
【課題を解決するための手段】
本発明はアクセルペダルの操作を機械的伝達手段および電気的伝達手段の少なくともいずれかを介してエンジン出力制御用機器に伝達し動作させるシステムがもっている前記の課題を、アクセル操作に抵抗力を加えることによって解決しようとするものであり、そのための手段を次のようにした。
【0011】
即ち、前記のシステムの回転部分に設けられカム部材と、前記カム部材の外側周面に接触させ弾性を付与された制動片を有する二の制動部を具えており、アクセルペダルを踏み込んだときの前記回転部分の回転により前記一方の制動部材における制動片が前記カム部材に押されて回転に対する抵抗力を発生し、アクセルペダルを戻したときの前記回転部分の回転により前記もう一方の制動部材における制動片が前記カム部材に押されて回転に対する抵抗力を発生するようにしたシステムの回転部分に少なくとも一個のカム部材を設けるとともに、少なくとも各一個の弾性を付与された制動片を有する二組の制動部材をカム部材の外側周面に接触させた。そして、アクセルペダルを踏み込んだときの回転部分の回転によって一方の組の制動片がカム部材に押されて回転に対する抵抗力を発生し、アクセルペダルを戻したときの回転部分の回転によってもう一方の組の制動片がカム部材に押されて回転に対する抵抗力を発生するようにしたものである。
【0012】
このように、二組の制動部材をカム部材の外側周面に配置してアクセルペダルの踏み込み時および戻し時のそれぞれにおいて抵抗力を各別に発生させるようにした本発明によると、制動部材の形状、材質、配置位置およびカム部材の形状を適宜に設定することにより、踏み込み時に従前のものと同程度の抵抗力を与えて違和感のないアクセル操作を行なわせる、という目的を容易に達成することができ、加えて戻し時の抵抗力即ち運転者がアクセルペダルから受ける感触を違和感のないものとすることができる。
【0013】
また、カム部材の外側周面に接触させ弾性を付与された制動片を有する二の制動片を具えており、アクセルペダルを踏み込んだときの前記回転部分の回転により前記一方の制動部材における制動片が前記カム部材に押されて回転に対する抵抗力を発生し、アクセルペダルを戻したときの前記回転部分の回転により前記もう一方の制動部材における制動片が前記カム部材に押されて回転に対する抵抗力を発生するようにして、少ない部品点数で設置場所を任意に選び多様な形態で実施することができる。
【0014】
また、カム部材を設ける回転部分は、アクセル操作量を電気信号に変換するアクセルセンサのブラシを保持した中心軸である場合、アクセルペダルに固着されてその回転中心として働く支軸である場合、エンジン出力制御用機器の回転部分即ち吸気絞り弁の弁軸や噴射ポンプのプランジャである場合がある。これらをアクセルペダルからエンジン出力制御用機器に至るまでの部品の構成、配置に応じて選択することにより、さまざまな型式のものに適用することができる。
【0015】
【発明の実施の形態】
図面を参照して本発明の実施の形態を説明すると、図1の(A)乃至(E)は本発明に係る抵抗発生装置の設置のそれぞれ異なる形態を説明する概略図であって、これらにおいて1はアクセルペダル、2はエンジン出力制御用機器、3はそのアクチュエータ、4はアクセルセンサ、5は電子式制御装置、6はワイヤケーブル、15は抵抗発生装置である。
【0016】
図1(A),(B),(C)はアクセルペダル1にその回動中心として働く支軸7を固着し、アクセル操作と一体に支軸7が回転するようにしたものである。そして、(A)は支軸7の両端にアクセルペダル1を挟んでアクセルセンサ4と抵抗発生装置15とを取り付け、(B)は支軸7の一端にアクセルセンサ4と抵抗発生装置15とを並べて取り付けたものであって、これらにおいてアクセルセンサ4が出力する電気信号は電子式制御装置5に送られ、これよりアクチュエータ3に駆動信号が送られエンジン出力制御用機器2をアクセル操作量に応じて動作させる。
【0017】
(C)は支軸7の一端に抵抗発生装置15を取り付け、これとは別の場所に設置したアクセルセンサ4の中心軸8にアクセルレバー9を固着してアクセルペダル1とアクセルレバー9とをワイヤケーブル6で結合したものであって、アクセルセンサ4が出力する電気信号が電子式制御装置5に送られ、これよりエンジン出力制御用機器2のアクチュエータ3に駆動信号が送られる。
【0018】
(D),(E)はアクセルペダル1を支軸7に特に固着することなく回動可能に支持させ、これより延びるワイヤケーブル6をアクセルレバー9に結合させている。(D)はアクセルセンサ4の中心軸8に抵抗発生装置15を取り付けるとともにアクセルレバー9を固着したものであって、アクセルセンサ4が出力する電気信号が電子式制御装置5に送られ、これよりエンジン出力制御用機器2のアクチュエータ3に駆動信号が送られる。(E)はエンジン出力制御用機器2である吸気絞り弁の弁軸10に抵抗発生装置15を取り付けるとともにアクセルレバー9を固着し、アクセルペダル1とアクセルレバー9とにワイヤケーブル6の両端を結合したものである。
【0019】
前記の(A),(B)に示したものはアクセルペダル1の操作をエンジン出力制御用機器2に電気的伝達手段のみによって伝達するもの、(C),(D)に示したものは機械的伝達手段と電気的手段との併用によって伝達するもの、(E)は機械的伝達手段のみによって伝達するものであり、抵抗発生装置15がアクセルペダル1に応動する回転部分の任意の個所に設けられることが判る。
【0020】
図2(A),(B)は抵抗発生装置15の実施の形態の一つを示す側面図であって、図1において支軸7,中心軸8,弁軸10で例示した回転部分である回転軸11に抵抗発生装置15を構成する一個のカム部材16を一体回転するように固定して取り付け、片持ち式の板ばね形状とした各一個の制動片24,26からなる二組の制動部材23,25をカム部材16の外側周面の回転中心を挟んで互いに反対側の部分に接触させたものである。
【0021】
カム部材16は円周方向約90度の範囲に亘る円弧形外側周面17と、その両端の径を次第に小さくするなめらかに湾曲した二つの山部18,19と、それから中心距離を次第に小さくしながらほぼ直線状に延びる二つの直線状外側周面20,21とを有しており、一般に従動節を揺動させる振り腕カムまたは従動節を直線動させる直線カムと呼ばれているカムと同様の形状である。
【0022】
制動部材23,25はカム部材16を囲んだ円環状の保持部材27の内側周面一側にカム部材16を挟み込むように突出形成されており、カム部材16の外側周面に面接触するように緩く湾曲している。また、保持部材27の外側周面には突起28が設けられており、この突起28は例えばアクセルセンサのハウジングに形成した溝に嵌め込まれて回り止めとして働く。
【0023】
図2(A)はアクセルペダルを踏み込んでおらず、従ってエンジンが停止しているかまたはアイドリングを行なっているときの状態を示しており、一方の制動部材23を構成する制動片24は一方の直線状外側周面20に接触して無荷重時の形状となっている。もう一方の制動部材25を構成する制動片26は一方の山部19によって押圧変形させられ、カム部材16に強い力で押し付けられている。
【0024】
アクセルペダルを踏み込むとカム部材16は図示時計方向へ回転軸11と一体に回転し、回転後方へ向かって中心距離が次第に大きくなる直線状外側周面20およびそれに続く山部18によって制動部材23が押圧変形させられ、その弾性復元力によってカム部材16に強い力で押し付けられることにより、回転に対する抵抗力を回転軸11に加える。一方、もう一つの制動部材25は山部19に続いて回転後方へ向かって中心距離が次第に小さくなる直線状外側周面21に接触することによって、カム部材16への押し付け力を減少しながら無荷重時の形状に戻る。
【0025】
図2(B)はアクセルペダルを最大限に踏み込んだときの状態を示しており、これよりアクセルペダルを戻すとカム部材16は図示反時計方向へ回転して(A)の状態に戻る。このとき、山部18によって最大に押圧変形していた制動部材23は直線状外側周面20に従って無荷重時の形状に戻り、直線状外側周面21によって無荷重時の状態となっていたもう一つの制動部材25は次第に押圧変形させられ山部19によって最大に押圧変形する。
【0026】
このように、アクセルペダルの踏み込み時に一方の制動部材23による抵抗力が増大するとともにもう一方の制動部材25による抵抗力が減少すること、およびアクセルペダルの戻し時に一方の制動部材23による抵抗力が減少するとともにもう一方の制動部材25による抵抗力が増大することにより、常にほぼ一定の抵抗力を加え、アクセル操作を違和感のないものとすることができる。
【0027】
この図2に示した実施の形態のものは、回転軸11に設けたカム部材16および二個の板ばね形状の制動片24,26からなる制動部材23,25を設けた保持部材27によって構成されているため部品点数が少なく構造が簡単である、という利点がある。また、カム部材16は小径に形成できるので設置場所の制限が少ない、という利点もある。
【0028】
図3(A),(B),(C)は抵抗発生装置15の別の実施の形態を示す縦断面図および側面図であって、回転軸11に二個のカム部材31,37を一体回転するように固定して取り付け、それらの外側周面に各一個の制動部材44,47の制動片45,48を接触させたものである。
【0029】
カム部材31,37は図2に示した実施の形態におけるカム部材16と同様の形状であって、円弧形外側周面32,38,二つの山部33,34,39,40,二つの直線状外側周面35,36,41,42を有しており、回転軸11に互いに180度の位相で取り付けられている。制動部材44,47はブロック状の制動片45,48をゴムまたは発泡合成樹脂からなる弾性体46,49に積層した構成であって平板状の保持部材50,52に固着されている。保持部材50,52は例えばアクセルセンサや回転軸11の軸受のハウジングに固定するための突起51,53を有しており、回転軸11の一側方に配置されている。
【0030】
図3はアクセルペダルを踏み込んでおらず、従ってエンジンが停止しているかまたはアイドリングを行なっているときの状態を示しており、(A),(B)に示すように一方の制動部材44の制動片45は一方のカム部材31の一つの直線状外側周面35に接して弾性体46が圧縮されない無荷重時の状態となっている。また、(A),(C)に示すようにもう一方の制動部材47の制動片48はもう一方のカム部材37の一つの山部40によって押圧圧縮された弾性体49の復元力でカム部材37に強く押し付けられている。
【0031】
アクセルペダルを踏み込むと二つのカム部材31,37は図3(B),(C)で時計方向へ回転軸11と一体に回転し、無荷重状態であった制動部材44はカム部材31の直線状外側周面35およびそれに続く山部33によって押圧され、弾性体46が圧縮することによりカム部材31に強い力で押し付けられる。圧縮状態であった制動部材47はカム部材37の山部40に続く直線状外側周面42によって押し付け力を減少し、最終的に無荷重で接触する状態となる。
【0032】
アクセルペダルを戻すと、前記とは反対に一方の制動部材44が無荷重状態、もう一方の制動部材47が圧縮状態に戻り、踏み込み時および戻し時に二つの制動部材44,47が交互に抵抗力を増減することによって常にほぼ一定の抵抗力を加え、アクセル操作を違和感のないものとすることができる。
【0033】
この図3に示した実施の形態のものは、例えば図1(A),(B),(C)に示す支軸7にアクセルペダル1を挟んで一組ずつ取り付ける、図1(C)に示す支軸7と中心軸8に一組ずつ取り付ける、など、狭いスペースを利用して離れた場所に設置することができる。また、各カム部材31,37の位相を制動部材44,47の設置の都合に応じたものにすることにより、常にほぼ一定の抵抗力を加えるという目的を損うことなく任意の回転部分に設置することができる。
【0034】
尚、図3に示した実施の形態において、二つのカム部材31,37と二組の制動部材41,47,保持部材50,52とをそれぞれ同一形状とし、部品の種類が最小限で製造、管理が簡単であるようにしたが、これらを互いに異なる形状に作ることもある。また、図3に示した実施の形態における制動部材44,47を図2に示したような片持ち板ばね形状のものとすることもある。
【0035】
【発明の効果】
以上のように、本発明によると部品点数が少なく構造が簡単であることに加えて設置場所を任意に選んで従前のものと同程度の抵抗力を加え、違和感なくアクセル操作を行なってエンジンを安定よく安全に運転することができるものである。
【図面の簡単な説明】
【図1】本発明の抵抗発生装置の設置のそれぞれ異なる形態を説明する概略図。
【図2】本発明の実施の形態を示す(A)はアクセルペダル戻り時、(B)はアクセルペダル踏み込み時の側面図。
【図3】本発明の異なる実施の形態を示す(A)はアクセルペダル戻り時の縦断面図、(B)および(C)は(A)の矢視A方向およびB方向に見た側面図。
【符号の説明】
11 回転軸,16,31,37 カム部材,23,25,44,47 制動部材,24,26,45,48 制動片,
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an accelerator operation resistance generator for providing an appropriate resistance to accelerator operation and performing a comfortable driving in a system in which an engine output control device is operated indirectly or directly in accordance with an accelerator operation amount of a driver. Is.
[0002]
[Prior art]
Connect the air intake throttle valve in the gasoline engine, which is an engine output control device, and the plunger of the injection pump in the diesel engine to the accelerator pedal installed at the foot of the driver's seat with a wire cable, and wire the cable according to the driver's accelerator operation Instead of a system using only mechanical transmission means that operates directly via the actuator, the electrical transmission means that operates by driving the actuator by converting the accelerator operation amount into an electrical signal by the accelerator sensor is used in combination or alone. Indirect operation systems have been developed and put into practical use in some automobiles.
[0003]
The accelerator sensor generally uses a potentiometer that changes the electric resistance value in proportion to the accelerator operation amount, and is installed near the accelerator pedal. The central axis holding the brush in contact with the arc-shaped resistor is linked to the accelerator pedal via a short wire cable, or directly linked to the support shaft to which the accelerator pedal is fixed. I have to.
[0004]
[Problems to be solved by the invention]
An accelerator pedal and an engine output control device connected by a wire cable generally have a long wire cable arranged along a guide such as a pipe and receive a corresponding resistance when the accelerator pedal is depressed.
[0005]
On the other hand, when the accelerator pedal and the accelerator sensor are connected with a short wire cable, or directly connected without using a wire cable, the resistance against depression of the accelerator pedal is extremely small, and a long and long wire cable is used. It may cause inconvenience to the driver who is familiar with what was used, causing the driver to step in as much as the stepping force is reduced, causing unexpected acceleration, causing an accident, and causing inconvenience such as hesitating the step and impairing driving performance. Become.
[0006]
In addition, it is fully predicted that the engine output control device may be closer to the accelerator pedal than the previous one depending on the layout in the engine room, and in this case, the equipment transmission that is connected to the accelerator pedal with a short wire cable. It is conceivable to operate directly by means, and this also has a concern that the stepping force is reduced and the same disadvantage as described above is caused.
[0007]
As a countermeasure, a disk is fixed to a rotating shaft that directly or indirectly drives an engine output control device, and a pressing member is always elastically pressed against the surface by a spring to provide resistance against a treading force. Japanese Patent Application Laid-Open No. 9-280076 discloses a device that eliminates the uncomfortable feeling.
[0008]
This one applies a well-known disk brake mechanism to apply a resistance force both when the accelerator pedal is depressed and when it is returned. There is the inconvenience of being restricted.
[0009]
The present invention transmits the driver's accelerator operation directly to the engine output control device or the rotating part of the accelerator sensor through a short wire cable or without using a short wire cable. Provided is a resistance generating device that requires a large accelerator pedal depression force, and therefore can perform an accelerator operation without a sense of incongruity and does not suffer from the above-described problems, and has a simple structure and is less restricted by the installation location. It was made for the purpose.
[0010]
[Means for Solving the Problems]
The present invention adds a resistance force to the accelerator operation in order to solve the above-mentioned problems of a system in which an operation of an accelerator pedal is transmitted to and operated by an engine output control device via at least one of a mechanical transmission means and an electrical transmission means. I tried to solve this problem, and the means for doing so were as follows.
[0011]
That is, the cam member provided on the rotating portion of the system, the equipped with a two braking member having an outer peripheral surface on the braking piece the elastic granted in contact of the cam member, the accelerator pedal The brake piece of the one braking member is pushed by the cam member due to the rotation of the rotating part when the pedal is depressed, and a resistance force against the rotation is generated, and the other part is rotated by the rotation of the rotating part when the accelerator pedal is returned. At least one cam member is provided in a rotating portion of the system in which the braking piece of the braking member is pressed by the cam member to generate a resistance force against rotation, and at least one elastic braking piece is provided. Two sets of braking members are brought into contact with the outer peripheral surface of the cam member. Then, one set of braking pieces is pushed by the cam member by the rotation of the rotating part when the accelerator pedal is depressed, and the other part is generated by the rotation of the rotating part when the accelerator pedal is returned. A set of braking pieces is pushed by a cam member to generate a resistance force against rotation.
[0012]
As described above, according to the present invention, two sets of braking members are arranged on the outer peripheral surface of the cam member so that a resistance force is generated separately when the accelerator pedal is depressed and returned, respectively. By appropriately setting the material, the arrangement position, and the shape of the cam member, it is possible to easily achieve the object of giving the same level of resistance as before when the pedal is depressed and performing an accelerator operation without a sense of incongruity. In addition, the resistance when returning, that is, the feeling that the driver receives from the accelerator pedal, can be made uncomfortable.
[0013]
Further, the outer peripheral surface and comprises a two braking piece having a braking piece elasticity imparted in contact with the said one of the brake member by the rotation of the rotating portion of the time of pressing down the accelerator pedal of the cam member The braking piece is pushed by the cam member to generate a resistance force against rotation, and the braking piece in the other braking member is pushed by the cam member due to the rotation of the rotating part when the accelerator pedal is returned. It is possible to implement various forms by arbitrarily selecting an installation place with a small number of parts so as to generate a resistance force .
[0014]
In addition, when the rotating portion provided with the cam member is a central shaft that holds the brush of the accelerator sensor that converts the accelerator operation amount into an electric signal, when the rotating portion is a support shaft that is fixed to the accelerator pedal and serves as the center of rotation, the engine In some cases, it is a rotating part of an output control device, that is, a valve shaft of an intake throttle valve or a plunger of an injection pump. By selecting these according to the configuration and arrangement of components from the accelerator pedal to the engine output control device, it can be applied to various types.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. FIGS. 1A to 1E are schematic diagrams illustrating different forms of installation of the resistance generator according to the present invention. 1 is an accelerator pedal, 2 is an engine output control device, 3 is its actuator, 4 is an accelerator sensor, 5 is an electronic control device, 6 is a wire cable, and 15 is a resistance generator.
[0016]
1A, 1B, and 1C show a structure in which a support shaft 7 serving as a center of rotation is fixed to an accelerator pedal 1 so that the support shaft 7 rotates integrally with the accelerator operation. And (A) attaches the accelerator sensor 4 and the resistance generator 15 with the accelerator pedal 1 sandwiched between both ends of the support shaft 7, and (B) attaches the accelerator sensor 4 and the resistance generator 15 to one end of the support shaft 7. The electric signals output from the accelerator sensor 4 are sent to the electronic control device 5, and the drive signal is sent to the actuator 3 to make the engine output control device 2 in accordance with the accelerator operation amount. Make it work.
[0017]
(C) attaches the resistance generating device 15 to one end of the support shaft 7, and fastens the accelerator lever 9 to the central shaft 8 of the accelerator sensor 4 installed at a different location to connect the accelerator pedal 1 and the accelerator lever 9 together. An electrical signal output from the accelerator sensor 4 is connected to the wire cable 6 and sent to the electronic control device 5, and a drive signal is sent to the actuator 3 of the engine output control device 2.
[0018]
In (D) and (E), the accelerator pedal 1 is rotatably supported without being particularly fixed to the support shaft 7, and the wire cable 6 extending therefrom is coupled to the accelerator lever 9. (D) is the one in which the resistance generator 15 is attached to the central shaft 8 of the accelerator sensor 4 and the accelerator lever 9 is fixed, and the electric signal output from the accelerator sensor 4 is sent to the electronic control device 5. A drive signal is sent to the actuator 3 of the engine output control device 2. (E) shows a resistance generator 15 attached to the valve shaft 10 of the intake throttle valve, which is the engine output control device 2, and the accelerator lever 9 is fixed, and both ends of the wire cable 6 are coupled to the accelerator pedal 1 and the accelerator lever 9. It is a thing.
[0019]
Those shown in (A) and (B) are those that transmit the operation of the accelerator pedal 1 to the engine output control device 2 only by electric transmission means, and those shown in (C) and (D) are machines. (E) is transmitted only by mechanical transmission means, and the resistance generating device 15 is provided at an arbitrary portion of the rotating portion that responds to the accelerator pedal 1. You can see that
[0020]
FIGS. 2A and 2B are side views showing one embodiment of the resistance generating device 15, which are rotating parts exemplified by the support shaft 7, the central shaft 8, and the valve shaft 10 in FIG. 1. One set of cam members 16 constituting the resistance generator 15 is fixedly attached to the rotating shaft 11 so as to rotate integrally, and two sets of braking pieces each composed of one piece of braking piece 24, 26 in the shape of a cantilever leaf spring. The members 23 and 25 are brought into contact with portions opposite to each other across the rotation center of the outer peripheral surface of the cam member 16.
[0021]
The cam member 16 has an arcuate outer peripheral surface 17 over a range of about 90 degrees in the circumferential direction, two smoothly curved peaks 18 and 19 that gradually reduce the diameters of both ends thereof, and the center distance gradually decreases thereafter. However, the cam has two linear outer peripheral surfaces 20 and 21 extending substantially linearly, and is generally called a swing arm cam that swings the driven node or a linear cam that linearly moves the driven node. It is the same shape.
[0022]
The braking members 23, 25 are formed so as to project the cam member 16 on one side of the inner peripheral surface of an annular holding member 27 that surrounds the cam member 16, and are in surface contact with the outer peripheral surface of the cam member 16. It is loosely curved. Further, a protrusion 28 is provided on the outer peripheral surface of the holding member 27, and this protrusion 28 is fitted into a groove formed in the housing of the accelerator sensor, for example, and serves as a detent.
[0023]
FIG. 2A shows a state in which the accelerator pedal is not depressed, and therefore the engine is stopped or idling, and the braking piece 24 constituting one braking member 23 is one straight line. It contacts the outer circumferential surface 20 and has a shape when no load is applied. The braking piece 26 constituting the other braking member 25 is pressed and deformed by one peak 19 and pressed against the cam member 16 with a strong force.
[0024]
When the accelerator pedal is depressed, the cam member 16 rotates integrally with the rotary shaft 11 in the clockwise direction in the figure, and the braking member 23 is caused by the linear outer peripheral surface 20 and the subsequent mountain portion 18 whose center distance gradually increases toward the rear of the rotation. By being pressed and deformed and pressed against the cam member 16 with a strong force by the elastic restoring force, a resistance force against the rotation is applied to the rotating shaft 11. On the other hand, the other braking member 25 comes into contact with the linear outer peripheral surface 21 whose center distance gradually decreases toward the rear of the rotation following the peak portion 19, thereby reducing the pressing force against the cam member 16. Return to the shape when loaded.
[0025]
FIG. 2 (B) shows the state when the accelerator pedal is fully depressed. When the accelerator pedal is returned from this position, the cam member 16 rotates counterclockwise in the figure and returns to the state (A). At this time, the braking member 23 that was maximally pressed and deformed by the peak portion 18 returned to the no-load state according to the linear outer peripheral surface 20, and was no longer loaded by the linear outer peripheral surface 21. One braking member 25 is gradually pressed and deformed and is maximally pressed and deformed by the ridge 19.
[0026]
As described above, when the accelerator pedal is depressed, the resistance force of one braking member 23 increases and the resistance force of the other braking member 25 decreases, and when the accelerator pedal is returned, the resistance force of one braking member 23 increases. By decreasing and increasing the resistance force by the other braking member 25, it is possible to always apply a substantially constant resistance force and to make the accelerator operation uncomfortable.
[0027]
The embodiment shown in FIG. 2 includes a cam member 16 provided on the rotating shaft 11 and a holding member 27 provided with braking members 23 and 25 including two leaf spring-shaped braking pieces 24 and 26. Therefore, there is an advantage that the number of parts is small and the structure is simple. Further, since the cam member 16 can be formed with a small diameter, there is an advantage that there are few restrictions on the installation location.
[0028]
FIGS. 3A, 3 </ b> B, and 3 </ b> C are a longitudinal sectional view and a side view showing another embodiment of the resistance generator 15, and two cam members 31 and 37 are integrated with the rotating shaft 11. The brake pieces 45 and 48 of one brake member 44 and 47 are brought into contact with the outer peripheral surfaces thereof, respectively, fixed so as to rotate.
[0029]
The cam members 31 and 37 have the same shape as the cam member 16 in the embodiment shown in FIG. 2, and are arcuate outer peripheral surfaces 32 and 38, two peak portions 33, 34, 39, 40, It has linear outer peripheral surfaces 35, 36, 41, and 42, and are attached to the rotating shaft 11 with a phase of 180 degrees. The braking members 44 and 47 are configured by laminating block-like braking pieces 45 and 48 on elastic bodies 46 and 49 made of rubber or foamed synthetic resin, and are fixed to flat plate-like holding members 50 and 52. The holding members 50 and 52 have, for example, protrusions 51 and 53 for fixing to an accelerator sensor or a bearing housing of the rotary shaft 11, and are arranged on one side of the rotary shaft 11.
[0030]
FIG. 3 shows a state where the accelerator pedal is not depressed, and therefore the engine is stopped or idling, and the braking of one braking member 44 is performed as shown in FIGS. The piece 45 is in contact with one linear outer peripheral surface 35 of one cam member 31 and is in a state of no load when the elastic body 46 is not compressed. Further, as shown in (A) and (C), the braking piece 48 of the other braking member 47 is cam member by the restoring force of the elastic body 49 pressed and compressed by one peak portion 40 of the other cam member 37. 37 is strongly pressed.
[0031]
When the accelerator pedal is depressed, the two cam members 31 and 37 rotate integrally with the rotary shaft 11 in the clockwise direction in FIGS. 3B and 3C, and the braking member 44 that is in an unloaded state is a straight line of the cam member 31. When the elastic body 46 is compressed by being pressed by the outer circumferential surface 35 and the mountain portion 33 that follows, the cam member 31 is pressed with a strong force. The braking member 47 that has been in a compressed state has its pressing force reduced by the linear outer peripheral surface 42 following the peak 40 of the cam member 37, and finally comes into contact with no load.
[0032]
When the accelerator pedal is returned, one brake member 44 is in a no-load state and the other brake member 47 is returned to a compressed state, and the two brake members 44 and 47 are alternately resisted when depressing and returning. By increasing / decreasing the value, it is possible to always apply a substantially constant resistance force and to make the accelerator operation feel comfortable.
[0033]
The embodiment shown in FIG. 3 is attached to the support shaft 7 shown in FIGS. 1 (A), 1 (B), and (C) one by one with the accelerator pedal 1 interposed therebetween, for example, in FIG. 1 (C). It can be installed in a remote place using a narrow space, such as attaching a pair to the support shaft 7 and the center shaft 8 shown. Further, by setting the phases of the cam members 31 and 37 in accordance with the installation convenience of the braking members 44 and 47, the cam members 31 and 37 can be installed at any rotating part without impairing the purpose of always applying a substantially constant resistance force. can do.
[0034]
In the embodiment shown in FIG. 3, the two cam members 31, 37, the two sets of braking members 41, 47, and the holding members 50, 52 have the same shape, and are manufactured with a minimum of types of parts. Although easy to manage, they may be made in different shapes. Further, the braking members 44 and 47 in the embodiment shown in FIG. 3 may be of a cantilever plate spring shape as shown in FIG.
[0035]
【The invention's effect】
As described above, according to the present invention, the number of parts is small and the structure is simple. In addition, the installation location is arbitrarily selected, the same level of resistance is applied as before, and the accelerator is operated without a sense of incongruity. It can be driven stably and safely.
[Brief description of the drawings]
FIG. 1 is a schematic diagram illustrating different forms of installation of a resistance generator according to the present invention.
FIGS. 2A and 2B are side views showing the embodiment of the present invention when the accelerator pedal is returned, and FIG. 2B is a side view when the accelerator pedal is depressed.
3A is a longitudinal sectional view when the accelerator pedal is returned, and FIGS. 3B and 3C are side views as viewed in the direction of arrows A and B in FIG. 3A, showing different embodiments of the present invention. .
[Explanation of symbols]
11 Rotating shaft 16, 31, 37 Cam member, 23, 25, 44, 47 Brake member, 24, 26, 45, 48 Brake piece,

Claims (5)

アクセルペダルの操作を機械的伝達手段および電気的伝達手段の少なくともいずれかを介してエンジン出力制御用機器に伝達し動作させるシステムにおけるアクセル操作に抵抗力を与える装置であって、前記システムの回転部分に設けられたカム部材と、前記カム部材の外側周面に接触させた弾性を付与された制動片を有する二個の制動部材を具えており、アクセルペダルを踏み込んだときの前記回転部分の回転により前記一方の制動部材における制動片が前記カム部材に押されて回転に対する抵抗力を発生するとともに前記もう一方の制動部材における制動片による前記カム部材への抵抗力が減少し、アクセルペダルを戻したときの前記回転部分の回転により前記もう一方の制動部材における制動片が前記カム部材に押されて回転に対する抵抗力を発生するとともに前記一方の制動部材における制動片による前記カム部材への抵抗力が減少するようにしたことを特徴とするアクセル操作抵抗発生装置。 An apparatus for imparting a resistance force to an accelerator operation in a system for transmitting and operating an accelerator pedal operation to an engine output control device via at least one of a mechanical transmission means and an electrical transmission means, the rotating portion of the system And two braking members having elastically imparted braking pieces in contact with the outer peripheral surface of the cam member, and rotation of the rotating part when the accelerator pedal is depressed. As a result, the braking piece in the one braking member is pushed by the cam member to generate a resistance force against rotation, and the resistance force to the cam member by the braking piece in the other braking member decreases, and the accelerator pedal is returned. When the rotating part is rotated, the braking piece of the other braking member is pushed by the cam member to prevent the rotation. Accelerator operating resistance generating device characterized by resistance to the cam member by the braking piece in the one brake member is so reduced as to generate drag. 前記制動部材の制動片が片持ち式の板ばね形状とされている請求項1に記載したアクセル操作抵抗発生装置。The accelerator operation resistance generator according to claim 1, wherein the braking piece of the braking member has a cantilevered leaf spring shape. 前記回転部分がアクセル操作量を電気信号に変換するアクセルセンサのブラシを保持した中心軸である請求項1または2に記載したアクセル操作抵抗発生装置。 The accelerator operation resistance generator according to claim 1 or 2, wherein the rotating portion is a central shaft that holds a brush of an accelerator sensor that converts an accelerator operation amount into an electric signal. 前記回転部分が前記アクセルペダルに固着され回動中心として働く支軸である請求項1または2に記載したアクセル操作抵抗発生装置。 The accelerator operation resistance generator according to claim 1 or 2, wherein the rotating portion is a support shaft fixed to the accelerator pedal and serving as a rotation center. 前記回転部分が前記エンジン出力制御用機器の回転部分である請求項1または2に記載したアクセル操作抵抗発生装置。 The accelerator operating resistance generator according to claim 1 or 2, wherein the rotating portion is a rotating portion of the engine output control device.
JP2000023524A 2000-02-01 2000-02-01 Accelerator operating resistance generator Expired - Lifetime JP4385176B2 (en)

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JP5513219B2 (en) * 2010-03-31 2014-06-04 本田技研工業株式会社 Accelerator operation amount detection device

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