JP3531154B2 - Brake operation force detection device - Google Patents
Brake operation force detection deviceInfo
- Publication number
- JP3531154B2 JP3531154B2 JP27553098A JP27553098A JP3531154B2 JP 3531154 B2 JP3531154 B2 JP 3531154B2 JP 27553098 A JP27553098 A JP 27553098A JP 27553098 A JP27553098 A JP 27553098A JP 3531154 B2 JP3531154 B2 JP 3531154B2
- Authority
- JP
- Japan
- Prior art keywords
- force
- rod
- brake
- shaped member
- detection device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、自動車等の車両に
用いられるブレーキ装置に関し、特に、ブレーキペダル
に加えられマスタシリンダへと伝えられるブレーキ操作
力の大きさを検出するためのブレーキ操作力検出装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device used in a vehicle such as an automobile, and more particularly to a brake operation force detection for detecting the magnitude of the brake operation force applied to a brake pedal and transmitted to a master cylinder. It relates to the device.
【０００２】[0002]
【従来の技術】車両用ブレーキ装置としては、踏み込ま
れたブレーキペダルから伝えられるブレーキ操作力（以
下、単に「操作力」ともいう）をマスタシリンダにより
油圧等の流体圧に変換し、その流体圧を各車輪ブレーキ
におけるホイールシリンダに伝えて制動力を発生させる
ものが一般的である。2. Description of the Related Art As a vehicle brake system, a master cylinder converts a brake operation force (hereinafter, simply referred to as "operation force") transmitted from a depressed brake pedal into a fluid pressure such as a hydraulic pressure. Is generally transmitted to the wheel cylinder in each wheel brake to generate a braking force.
【０００３】また、ＡＢＳ（Anti-lock Braking Syste
m）やブレーキアシストシステム等のブレーキ制御シス
テムを採用するブレーキ装置もある。ここで、ＡＢＳと
は制動時の操縦性・安定性を主目的としたシステム、ブ
レーキアシストシステムとは緊急制動時等に操作力を補
助し確実な制動力を発揮させるためのシステムをいう。
このようなブレーキ制御システムを採用したブレーキ装
置においては、ブレーキペダルの踏込み状態や操作力の
大きさを検出することが必要となる。ABS (Anti-lock Braking Syste)
There is also a brake device that adopts a brake control system such as m) or a brake assist system. Here, the ABS is a system whose main purpose is maneuverability / stability during braking, and the brake assist system is a system for assisting the operating force during emergency braking or the like to exert a reliable braking force.
In a brake device that employs such a brake control system, it is necessary to detect the depression state of the brake pedal and the magnitude of the operating force.
【０００４】このため、従来においては、例えば特開平
１０−１４７２２４号公報に開示されているように、ブ
レーキペダルからの操作力をマスタシリンダに伝えるオ
ペレーティングロッドの表面に電気抵抗式の歪ゲージを
貼着してなるブレーキ操作力検出装置が提案されてい
る。このブレーキ操作力検出装置は、操作力がオペレー
ティングロッドに軸方向に沿って作用しオペレーティン
グロッドが圧縮歪を生ずることに鑑みて創案されたもの
であり、歪ゲージにより計測された圧縮歪を操作力とし
て検出するようになっている。Therefore, conventionally, as disclosed in, for example, Japanese Unexamined Patent Publication No. 10-147224, an electric resistance type strain gauge is attached to the surface of the operating rod that transmits the operating force from the brake pedal to the master cylinder. A brake operation force detection device that is worn is proposed. This brake operating force detection device was devised in view of the fact that the operating force acts on the operating rod along the axial direction to cause the operating rod to generate compressive strain, and the compressive strain measured by the strain gauge is applied to the operating force. It is designed to detect as.
【０００５】また、従来においては、ブレーキペダルに
は曲げが生ずることから、その曲げによる伸び又は縮み
の歪をブレーキペダルの表面に貼着された歪ゲージで検
出しようとする手段も考えられている。Further, conventionally, since a brake pedal is bent, a means for detecting the strain of expansion or contraction due to the bending by a strain gauge attached to the surface of the brake pedal has been considered. .
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、特開平
１０−１４７２２４号公報に開示の従来技術において
は、オペレーティングロッドに生ずる圧縮歪は実際には
極めて小さく、よって歪ゲージでは圧縮歪を正確に検出
することは困難である。However, in the prior art disclosed in Japanese Unexamined Patent Publication No. 10-147224, the compression strain generated in the operating rod is actually extremely small, and therefore the strain gauge accurately detects the compression strain. Is difficult.
【０００７】また、ブレーキペダルは曲げ剛性が非常に
高いため、ブレーキペダルに生ずる歪は小さく、且つま
た、ねじり等がブレーキペダルに加わるので、ブレーキ
ペダルに歪ゲージを設ける手段も、安定して精度よく操
作力を検出することは困難である。Further, since the brake pedal has a very high bending rigidity, the strain generated in the brake pedal is small, and since torsion or the like is applied to the brake pedal, the means for providing the strain gauge in the brake pedal is also stable and accurate. It is difficult to detect the operating force well.
【０００８】そこで、本発明は、ブレーキ操作力を高精
度で検出することのできるブレーキ操作力検出装置を提
供することを目的としている。Therefore, an object of the present invention is to provide a brake operating force detecting device capable of detecting the brake operating force with high accuracy.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、請求項１に係る発明は、ブレーキペダルからブレー
キ操作力をマスタシリンダに伝えて制動力を発生させる
ブレーキ装置において用いられる、ブレーキ操作力を検
出するためのブレーキ操作力検出装置であって、ブレー
キペダルに接続され、ブレーキペダルからのブレーキ操
作力を伝達する力伝達部材と、力伝達部材からのブレー
キ操作力を受け、マスタシリンダに伝える力受け部材
と、力伝達部材から力受け部材にブレーキ操作力を伝達
するよう力伝達部材及び力受け部材に接続されると共
に、力伝達部材との接続部及び力受け部材との接続部が
ブレーキ操作力の伝達方向に直交する方向において互い
に偏倚されている棒状部材と、棒状部材の、力伝達部材
との接続部及び力受け部材との接続部の間に配置された
歪検出手段とを備えるブレーキ操作力検出装置を特徴と
している。なお、請求項５に記載したように、力伝達部
材は、ブレーキペダルにペダル側ロッドを介して接続さ
れたベース部材であり、力受け部材は、ブレーキペダル
のブレーキ操作力を助勢してマスタシリンダに伝えるブ
ースタに延びるブースタ側ロッドであるとすることが好
ましい。In order to achieve the above object, the invention according to claim 1 is a brake operation used in a brake device for generating a braking force by transmitting a brake operation force from a brake pedal to a master cylinder. A brake operating force detection device for detecting force, comprising a force transmitting member connected to a brake pedal for transmitting brake operating force from the brake pedal, and a brake operating force received from the force transmitting member to a master cylinder. The force receiving member for transmitting and the force transmitting member and the force receiving member for transmitting the brake operating force from the force transmitting member to the force receiving member are connected to the force transmitting member and the connection portion with the force receiving member. A rod-shaped member that is offset from each other in a direction orthogonal to the transmission direction of the brake operating force, a connecting portion of the rod-shaped member with the force transmission member, and a force receiver. It is characterized in brake operating force detecting apparatus and a distortion detecting means disposed between the connecting portion of the timber. As described in claim 5, the force transmitting member is a base member connected to the brake pedal via the pedal side rod, and the force receiving member assists the brake operating force of the brake pedal to generate the master cylinder. It is preferable that the rod is a booster-side rod that extends to the booster.
【００１０】かかる構成において、力伝達部材と力受け
部材との間に配置された棒状部材には各部材からせん断
方向の力が作用し、そのせん断力に対応する曲げが棒状
部材に生ずる。せん断方向の力はブレーキ操作力に対応
するものであり、従って、棒状部材の曲げ歪を歪ゲージ
等の歪検出手段により検出することで、ブレーキ操作力
を検出することが可能となる。In such a structure, a force in the shearing direction acts from each member on the rod-shaped member arranged between the force transmitting member and the force receiving member, and bending corresponding to the shearing force is generated in the rod-shaped member. The force in the shearing direction corresponds to the brake operating force. Therefore, it is possible to detect the brake operating force by detecting the bending strain of the rod-shaped member by a strain detecting means such as a strain gauge.
【００１１】棒状部材の取付方法は種々考えられるが、
請求項２に記載のように、棒状部材の一端を力伝達部材
又は力受け部材のいずれか一方に回動可能に接続し、棒
状部材の中間部を力伝達部材又は力受け部材の他方に接
続し、更に、棒状部材の他端側の部分に、棒状部材の前
記一端に作用する力の方向と実質的に同じ方向に弾性的
な付勢力が作用するよう、当該部分をばね付勢手段によ
り支持かるようにしたものが好適である。There are various conceivable methods for attaching the rod-shaped member,
As described in claim 2, one end of the rod-shaped member is rotatably connected to either the force transmission member or the force receiving member, and the intermediate portion of the rod-shaped member is connected to the other of the force transmission member or the force receiving member. In addition, a spring biasing means is applied to a portion of the rod-shaped member on the other end side so that an elastic biasing force acts in a direction substantially the same as the direction of the force acting on the one end of the rod-shaped member. Those which are designed to be supported are preferable.
【００１２】この構成では、請求項３に記載のように、
ばね付勢手段のばね力を調整可能とすることで、歪検出
手段のゼロ点を調整することができる。In this structure, as described in claim 3,
By making the spring force of the spring biasing means adjustable, the zero point of the strain detecting means can be adjusted.
【００１３】また、請求項４に記載したように、ばね付
勢手段による支持点の位置を調整可能とすることで、棒
状部材に生ずる曲げの大きさを調整することが可能とな
る。Further, as described in claim 4, by making it possible to adjust the position of the support point by the spring biasing means, it becomes possible to adjust the magnitude of the bending generated in the rod-shaped member.
【００１４】[0014]
【発明の実施の形態】以下、図面と共に本発明の好適な
実施形態について詳細に説明する。なお、全図を通し、
同一又は相当部分には同一符号を付することとする。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the drawings. In addition, through all the figures,
The same or corresponding parts are designated by the same reference numerals.
【００１５】図１は、本発明によるブレーキ操作力検出
装置（以下「操作力検出装置」という）の第１実施形態
が適用されたブレーキ装置を示している。このブレーキ
装置は、ブレーキペダル１０からの操作力をブースタ１
２により助勢した後、マスタシリンダ１４において油圧
に変換し、この油圧を複数のソレノイドバルブ及びポン
プ等（図示せず）から構成されたブレーキアクチュエー
タ１６を介して各車輪ブレーキのホイールシリンダ１８
に供給し制動を行うものである。FIG. 1 shows a brake device to which a first embodiment of a brake operating force detecting device according to the present invention (hereinafter referred to as "operating force detecting device") is applied. This brake device applies the operating force from the brake pedal 10 to the booster 1
After being assisted by 2, the master cylinder 14 converts the oil pressure into a hydraulic pressure, and this hydraulic pressure is passed through a brake actuator 16 composed of a plurality of solenoid valves, pumps and the like (not shown) to a wheel cylinder 18 of each wheel brake.
Is supplied to the vehicle for braking.
【００１６】ブレーキペダル１０は、上端部がピン２０
により車体に回動可能に支持されたペダルレバー２２
と、このペダルレバー２２の下端に取り付けられ足で押
動操作されるペダル本体２４とから構成されている。ペ
ダルレバー２２の中間部の適宜位置には、操作力をブー
スタ１２に伝えるためのオペレーティングロッド２６が
クレビス２８を介して連結されている。The brake pedal 10 has a pin 20 at the upper end.
Pedal lever 22 rotatably supported by the vehicle body by
And a pedal body 24 which is attached to the lower end of the pedal lever 22 and is pushed and operated by a foot. An operating rod 26 for transmitting an operating force to the booster 12 is connected to an appropriate position at an intermediate portion of the pedal lever 22 via a clevis 28.
【００１７】第１実施形態において、オペレーティング
ロッド２６は、ブレーキペダル側とブースタ側とに適当
な間隙を置いて２分割されている。本発明によるブレー
キ操作力検出装置３０は、このペダル側ロッド３２とブ
ースタ側ロッド３４との間に配設されている。In the first embodiment, the operating rod 26 is divided into two parts with an appropriate gap between the brake pedal side and the booster side. The brake operation force detection device 30 according to the present invention is arranged between the pedal side rod 32 and the booster side rod 34.
【００１８】操作力検出装置３０は、その縦断面図であ
る図２に明示するように、ペダル側ロッド３２の端部が
ピン３６により回動可能に支持されるベース部材３８を
備えている。ベース部材３８は、ペダル側ロッド３２か
らの操作力を受けて、その力を力受け部材であるブース
タ側ロッド３４に伝える力伝達部材として機能するもの
であり、また、操作力検出装置３０の構成要素を収容・
支持するケースの形態を採っている。The operating force detection device 30 is provided with a base member 38 on which an end portion of the pedal side rod 32 is rotatably supported by a pin 36, as clearly shown in FIG. The base member 38 functions as a force transmission member that receives an operation force from the pedal side rod 32 and transmits the force to the booster side rod 34 that is a force receiving member, and the configuration of the operation force detection device 30. Accommodating elements
It takes the form of a supporting case.
【００１９】ブースタ側ロッド３４の端部には棒状部材
４０の中間部がピン４２により回動可能に接続されてお
り、この棒状部材４０の一端はベース部材３８にピン４
４により回動可能に支持されている。非踏込み状態にお
いて、棒状部材４０は、オペレーティングロッド２６の
軸方向、すなわち操作力が伝達する方向に対してほぼ直
角に延びるよう配置されることが好ましい。かかる配列
において、ベース部材３８との接続部（４４）と、ブー
スタ側ロッド３４の接続部（４２）は、操作力の伝達方
向に直交する方向において互いに偏倚されることにな
る。An intermediate portion of a rod-shaped member 40 is rotatably connected to the end portion of the booster-side rod 34 by a pin 42, and one end of the rod-shaped member 40 is attached to the base member 38 by a pin 4.
It is rotatably supported by 4. In the undepressed state, the rod-shaped member 40 is preferably arranged so as to extend substantially at right angles to the axial direction of the operating rod 26, that is, the direction in which the operating force is transmitted. In such an arrangement, the connection portion (44) with the base member 38 and the connection portion (42) of the booster-side rod 34 are offset from each other in the direction orthogonal to the operation force transmission direction.
【００２０】棒状部材４０の、ピン４２とピン４４との
間の部分には、棒状部材４０の曲げによる歪を検出する
ための歪検出手段として、電気抵抗式の歪ゲージ４６が
貼着されている。An electric resistance type strain gauge 46 is attached to a portion of the rod member 40 between the pin 42 and the pin 44 as a strain detecting means for detecting strain due to bending of the rod member 40. There is.
【００２１】棒状部材４０の他端側の適当な位置には、
ブースタ側ロッド３４からの力に抗して棒状部材４０を
支持する支持部材４８が配置されている。この支持部材
４８は、棒状部材４０のブレーキペダル１０側の面に摺
動可能に接している。また、支持部材４８は、ベース部
材３８に設けられた調整部材５０のシリンダ部分５２内
に配置され、オペレーティングロッド２６の軸方向と平
行な方向（矢印Ａ方向）に沿って移動可能となってい
る。シリンダ部分５２内には圧縮ばね（ばね付勢手段）
５４が配置されており、支持部材４８を棒状部材４０に
常に接するよう付勢している。更に、シリンダ部分５２
内には、圧縮ばね５４の一端を受けるばね受け板５６が
配置されている。このばね受け板５６は、その位置が調
整ねじ５８により調整可能となっており、これにより支
持部材４８の棒状部材４０に対する付勢力を調整するこ
とができる。At a suitable position on the other end of the rod member 40,
A support member 48 that supports the rod-shaped member 40 against the force from the booster-side rod 34 is arranged. The support member 48 slidably contacts the surface of the rod member 40 on the brake pedal 10 side. Further, the support member 48 is arranged in the cylinder portion 52 of the adjustment member 50 provided on the base member 38, and is movable along a direction parallel to the axial direction of the operating rod 26 (direction of arrow A). . A compression spring (spring biasing means) is provided in the cylinder portion 52.
54 is arranged to urge the support member 48 so as to always contact the rod-shaped member 40. Further, the cylinder portion 52
A spring receiving plate 56 that receives one end of the compression spring 54 is disposed therein. The position of the spring receiving plate 56 can be adjusted by an adjusting screw 58, and thus the biasing force of the supporting member 48 on the rod-shaped member 40 can be adjusted.
【００２２】調整部材５０は、非踏込み状態において、
棒状部材４０とほぼ平行な方向（矢印Ｂ方向）に移動し
得るよう、ベース部材３８に取り付けられている。更
に、ベース部材３８には、調整部材５０を矢印Ｂ方向の
一方に付勢する圧縮ばね６０が取り付けられており、ま
た、圧縮ばね６０とは反対側の位置に、調整部材５０を
受けてその位置を定める調整ねじ６２が配置されてい
る。従って、調整ねじ６２を回すことで、調整部材５０
及び支持部材４８はベース部材３８に対して矢印Ｂ方向
において位置調整が可能となっている。The adjusting member 50 is
It is attached to the base member 38 so that it can move in a direction substantially parallel to the rod-shaped member 40 (direction of arrow B). Further, a compression spring 60 for urging the adjustment member 50 in one direction of the arrow B is attached to the base member 38, and the adjustment member 50 is received at a position opposite to the compression spring 60. An adjusting screw 62 for determining the position is arranged. Therefore, by turning the adjusting screw 62, the adjusting member 50
The position of the support member 48 can be adjusted with respect to the base member 38 in the arrow B direction.
【００２３】このような構成の操作力検出装置３０の作
用は次の通りである。The operation of the operation force detecting device 30 having such a configuration is as follows.
【００２４】まず、図１に示すようにブレーキペダル１
０のペダル本体２４を適当な踏力ＦPで踏むと、ペダル
レバー２２がピン２０を中心にして回動する。そして、
踏力ＦPがブレーキペダル固有の比率で倍力され、その
力ＦBが操作力としてオペレーティングロッド２６のペ
ダル側ロッド３２から操作力検出装置３０及びブースタ
側ロッド３４を介してブースタ１４に伝えられる。この
時、操作力ＦBと同等の大きさであって反対向きの反力
ＦB′がブースタ側ロッド３４から棒状部材４０に作用
する。これにより、棒状部材４０はピン４４を中心にし
てブレーキペダル１０側に回動し、圧縮ばね５４を圧縮
する。圧縮ばね５４は反力ＦB′の大きさに対応した量
だけ圧縮した後、静定状態となる。この静定状態におい
て、棒状部材４０には、反力ＦB′の大きさ、すなわち
操作力ＦBないしは踏力ＦPに対応した曲げが生じる。歪
ゲージ４６は、この曲げによる棒状部材４０の歪（伸び
又は縮み）を検出し、当該歪の大きさから操作力ＦB又
は踏力ＦPを求めることが可能となる。First, as shown in FIG. 1, the brake pedal 1
When the pedal body 24 of 0 is stepped on with an appropriate pedal force F P , the pedal lever 22 rotates around the pin 20. And
The pedaling force F P is boosted at a ratio peculiar to the brake pedal, and the force F B is transmitted as an operating force from the pedal side rod 32 of the operating rod 26 to the booster 14 via the operating force detection device 30 and the booster side rod 34. At this time, a reaction force F B ′ having the same magnitude as the operation force F B but in the opposite direction acts on the rod member 40 from the booster side rod 34. As a result, the rod-shaped member 40 rotates around the pin 44 toward the brake pedal 10 side and compresses the compression spring 54. The compression spring 54 becomes a static state after being compressed by an amount corresponding to the magnitude of the reaction force F B ′. In this statically settled state, the rod-like member 40 is bent corresponding to the magnitude of the reaction force F B ′, that is, the operating force F B or the pedaling force F P. The strain gauge 46 can detect the strain (elongation or contraction) of the rod-shaped member 40 due to this bending, and obtain the operating force F B or the pedaling force F P from the magnitude of the strain.
【００２５】なお、非踏込み状態において調整ねじ５８
を回すと、支持部材４８による支持点に作用するばね付
勢力の初期値が変わり、歪ゲージ４６の出力のゼロ点調
整が可能となる。また、調整ねじ６２を回して支持部材
４８の矢印Ｂ方向の位置調整を行うと、支持部材４８か
らの反力による棒状部材４０に対する曲げモーメントが
変化する。従って、調整ねじ６２によって歪ゲージ４６
のゲイン調整を行うことが可能となる。更に、棒状部材
４０の剛性を適宜選択することにより、曲げによる歪を
適宜増減することができ、検出精度の向上に寄与する。The adjusting screw 58 in the non-depressed state
When is turned, the initial value of the spring biasing force acting on the support point by the support member 48 changes, and the zero point adjustment of the output of the strain gauge 46 becomes possible. When the adjusting screw 62 is turned to adjust the position of the supporting member 48 in the direction of the arrow B, the bending moment of the rod-shaped member 40 due to the reaction force from the supporting member 48 changes. Therefore, the strain gauge 46 is adjusted by the adjusting screw 62.
It is possible to adjust the gain. Further, by appropriately selecting the rigidity of the rod-shaped member 40, it is possible to appropriately increase or decrease the strain due to bending, which contributes to improvement in detection accuracy.
【００２６】上記の第１実施形態では、オペレーティン
グロッド２６を２分割し、その間に操作力検出装置を配
置することとしているが、操作力が伝わる経路中であれ
ば、いずれ位置においても操作力検出装置を配置するこ
とができる。例えば、図３及び図４に示す本発明の第２
実施形態では、ブレーキペダル１０とクレビス２８との
間に操作力検出装置１３０を配置している。In the first embodiment described above, the operating rod 26 is divided into two, and the operating force detecting device is arranged between them. However, if the operating force is in the path, the operating force can be detected at any position. The device can be arranged. For example, the second embodiment of the present invention shown in FIGS.
In the embodiment, the operation force detection device 130 is arranged between the brake pedal 10 and the clevis 28.
【００２７】より詳細に述べるならば、第２実施形態に
おいて、クレビス２８のピン７０が通されるブレーキペ
ダル１０の貫通孔７２はオペレーティングロッド２６の
軸方向に延びる長穴となっている。従って、貫通孔７２
に形成されたクリアランス（間隙）Ｃだけ、クレビス２
８とブレーキペダル１０とは相対的に移動自在となる。More specifically, in the second embodiment, the through hole 72 of the brake pedal 10 through which the pin 70 of the clevis 28 is inserted is an elongated hole extending in the axial direction of the operating rod 26. Therefore, the through hole 72
Only the clearance (gap) C formed on the clevis 2
8 and the brake pedal 10 are relatively movable.
【００２８】第２実施形態における操作力検出装置１３
０は、クレビス２８の一部を上下に拡張し、この拡張部
分７２，７４を前記のベース部材として用いている。ま
た、歪ゲージ４６が取り付けられた棒状部材４０は、そ
の一端がクレビス２８の上側拡張部分７２にピン４４に
より枢支され、棒状部材４０の他端側部分には、ブレー
キペダル１０側に圧縮ばね５４の付勢力が作用するよ
う、支持部材４８が接している。なお、この第２実施形
態は、支持部材４８の位置調整や圧縮ばね５４のばね力
の調整のための機構は有していない。Operating force detection device 13 in the second embodiment
In No. 0, a part of the clevis 28 is vertically expanded, and the expanded parts 72 and 74 are used as the base member. Further, one end of the rod-shaped member 40 to which the strain gauge 46 is attached is pivotally supported by the pin 44 on the upper expanded portion 72 of the clevis 28, and the other end of the rod-shaped member 40 has a compression spring on the brake pedal 10 side. The support member 48 is in contact with the urging force 54. The second embodiment does not have a mechanism for adjusting the position of the support member 48 or adjusting the spring force of the compression spring 54.
【００２９】更に、棒状部材４０の、歪ゲージ４６と支
持部材４８との間の部分には力伝達部材７８が接続され
ている。この力伝達部材７８は適当に手段によりブレー
キペダル１０に固着されたものである。Further, a force transmission member 78 is connected to a portion of the rod member 40 between the strain gauge 46 and the support member 48. The force transmission member 78 is fixed to the brake pedal 10 by a suitable means.
【００３０】このような構成の操作力検出装置１３０に
おいては、第１実施形態のようにブレーキペダル１０か
らの操作力の反力が棒状部材４０に作用するのではな
く、ブレーキペダル１０からの操作力が力伝達部材７８
を介して直接、棒状部材４０に作用する。また、ブレー
キペダル１０が、力受け部材であるクレビス２８に対し
てクリアランスＣの範囲内で移動している間に限り、操
作力を検出することが可能となっている。その他の点で
は第１実施形態のものと同様な作用を奏することは理解
されよう。In the operation force detecting device 130 having such a configuration, the reaction force of the operation force from the brake pedal 10 does not act on the rod-shaped member 40 as in the first embodiment, but the operation from the brake pedal 10 is performed. Force is the force transmitting member 78
It directly acts on the rod-shaped member 40 via. Further, the operating force can be detected only while the brake pedal 10 is moving within the range of the clearance C with respect to the clevis 28 which is the force receiving member. It will be understood that the other operations are similar to those of the first embodiment.
【００３１】図５は本発明の第３実施形態を示してい
る。第３実施形態の操作力検出装置２３０は、第２実施
形態と同様に、ブレーキペダル１０とクレビス２８との
間に設けられているが、操作力を受ける側（クレビス２
８のピン７０）からの反力が棒状部材４０に作用する構
成を採っている。すなわち、棒状部材４０はブレーキペ
ダル１０に固定された力伝達部材８０に枢支され、クレ
ビス２８のピン７０に取り付けられた力受け部材８２が
棒状部材４０の中間部に接続されている。歪ゲージ４６
及び支持部材４８、圧縮ばね５４の取付位置については
第１実施形態のものと同様な関係としてある。この操作
力検出装置２３０の作用については、ブレーキペダル１
０とクレビス２８との間で相対移動が生じている間に限
って操作力の検出が可能である点を除き、第１実施形態
と同様であり、その説明は省略する。FIG. 5 shows a third embodiment of the present invention. The operating force detection device 230 of the third embodiment is provided between the brake pedal 10 and the clevis 28 as in the second embodiment, but the operating force detecting device 230 is the side that receives the operating force (the clevis 2).
The reaction force from the pin 70) of No. 8 acts on the rod-shaped member 40. That is, the rod member 40 is pivotally supported by the force transmission member 80 fixed to the brake pedal 10, and the force receiving member 82 attached to the pin 70 of the clevis 28 is connected to the intermediate portion of the rod member 40. Strain gauge 46
The mounting positions of the support member 48 and the compression spring 54 are similar to those in the first embodiment. Regarding the operation of the operation force detection device 230, the brake pedal 1
0 is the same as the first embodiment except that the operating force can be detected only while the relative movement between the 0 and the clevis 28 occurs, and the description thereof will be omitted.
【００３２】以上、本発明の好適な実施形態について説
明したが、本発明は上記実施形態に限定されないことは
いうまでもない。Although the preferred embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above embodiment.
【００３３】例えば、上記実施形態では棒状部材４０は
操作力の作用方向に対して直交しているように図示され
ており、これは棒状部材４０にせん断方向の力を最も効
率的に作用させる形態であるが、棒状部材４０は操作力
の作用方向に対して直角である必要はなく、棒状部材４
０にせん断方向の力が作用する配置であればよい。For example, in the above-described embodiment, the rod-shaped member 40 is shown as being orthogonal to the acting direction of the operating force, which means that the force in the shearing direction is applied to the rod-shaped member 40 most efficiently. However, the rod-shaped member 40 does not need to be at right angles to the acting direction of the operating force, and the rod-shaped member 4
The arrangement may be such that a force in the shearing direction acts on 0.
【００３４】また、歪検出手段も歪ゲージ４６に限ら
ず、他の周知の歪検出手段を用いることも可能である。Further, the strain detecting means is not limited to the strain gauge 46, and other known strain detecting means can be used.
【００３５】更に、棒状部材４０に曲げが生じ、且つ初
期状態に確実に復帰する構成ならば、圧縮ばね等のばね
付勢手段により一端を支持する必要もない。この場合
は、例えば、図２においてピン４４により枢支されてい
る棒状部材４０の端部はベース部材３８に回動不可能に
固定されるような形態を採ることになる。Further, if the rod-shaped member 40 is bent and the initial state is reliably restored, it is not necessary to support one end by a spring biasing means such as a compression spring. In this case, for example, the end of the rod member 40 pivotally supported by the pin 44 in FIG. 2 is fixed to the base member 38 in a non-rotatable manner.
【００３６】[0036]
【発明の効果】以上述べたように、本発明によれば、操
作力を棒状部材上の２箇所に互いに反対方向のせん断力
として作用させることができ、これにより操作力に対応
する曲げ歪を棒状部材に生じさせることができる。棒状
部材の剛性等を適宜選定することで、曲げによる歪は、
検出するに十分な大きさとすることができ、また、ねじ
り等の歪を含まないため、高精度で歪、ひいては操作力
を検出することができる。As described above, according to the present invention, the operating force can be applied to two positions on the rod-shaped member as shearing forces in opposite directions, whereby bending strain corresponding to the operating force can be applied. It can be produced on a rod-shaped member. By appropriately selecting the rigidity of the rod-shaped member, the strain due to bending is
The size can be made large enough to be detected, and since distortion such as twisting is not included, it is possible to detect distortion with high accuracy, and consequently the operating force.
【００３７】また、ばね付勢手段を棒状部材に設け、そ
の位置やばね力を調整可能とするこで、歪検出手段から
の出力を調整することが可能となり、検出精度の更なる
向上を図ることができる。Further, by providing the spring biasing means on the rod-shaped member and adjusting the position and spring force thereof, the output from the strain detecting means can be adjusted, and the detection accuracy is further improved. be able to.
【図１】本発明によるブレーキ操作力検出装置の第１実
施形態が適用されたブレーキ装置を概略的に示す説明図
である。FIG. 1 is an explanatory view schematically showing a brake device to which a first embodiment of a brake operating force detecting device according to the present invention is applied.
【図２】本発明によるブレーキ操作力検出装置の第１実
施形態を詳細に示す断面図である。FIG. 2 is a cross-sectional view showing in detail a first embodiment of a brake operating force detection device according to the present invention.
【図３】本発明によるブレーキ操作力検出装置の第２実
施形態を示す一部断面側面図である。FIG. 3 is a partial cross-sectional side view showing a second embodiment of a brake operating force detection device according to the present invention.
【図４】図３のIV−IV線に沿っての端面図である。FIG. 4 is an end view taken along line IV-IV in FIG.
【図５】本発明によるブレーキ操作力検出装置の第２実
施形態を示す一部断面側面図である。FIG. 5 is a partial cross-sectional side view showing a second embodiment of the brake operating force detection device according to the present invention.
１０…ブレーキ、１２…ブースタ、１４…マスタシリン
ダ、１８…ホイールシリンダ、２６…オベレーティング
ロッド、２８…クレビス、３０，１３０，２３０…ブレ
ーキ操作力検出装置、３２…ブレーキ側ロッド、３４…
ブースタ側ロッド（力受け部材）、３８…ベース部材
（力伝達部材）、４０…棒状部材、４６…歪ゲージ（歪
検出手段）、４８…支持部材、５０…調整部材、５４…
圧縮ばね（ばね付勢手段）、５８，６２…調整ねじ。10 ... Brake, 12 ... Booster, 14 ... Master cylinder, 18 ... Wheel cylinder, 26 ... Operating rod, 28 ... Clevis, 30, 130, 230 ... Brake operating force detection device, 32 ... Brake side rod, 34 ...
Booster side rod (force receiving member), 38 ... Base member (force transmitting member), 40 ... Rod-shaped member, 46 ... Strain gauge (strain detecting means), 48 ... Supporting member, 50 ... Adjusting member, 54 ...
Compression springs (spring biasing means), 58, 62 ... Adjustment screws.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平９−118208（ＪＰ，Ａ) 特開 平４−232153（ＪＰ，Ａ) 特開 平11−255084（ＪＰ，Ａ) 実開 昭59−30762（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B60T 7/02 ─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-9-118208 (JP, A) JP-A-4-232153 (JP, A) JP-A-11-255084 (JP, A) Actual development Sho-59- 30762 (JP, U) (58) Fields investigated (Int.Cl. 7 , DB name) B60T 7/02
Claims (5)
スタシリンダに伝えて制動力を発生させるブレーキ装置
において用いられる、ブレーキ操作力を検出するための
ブレーキ操作力検出装置であって、前記ブレーキペダルに接続され、前記ブレーキペダルか
らの ブレーキ操作力を伝達する力伝達部材と、前記力伝達部材からのブレーキ操作力を受け、前記マス
タシリンダに伝える 力受け部材と、 前記力伝達部材から前記力受け部材にブレーキ操作力を
伝達するよう前記力伝達部材及び前記力受け部材に接続
されると共に、前記力伝達部材との接続部及び前記力受
け部材との接続部がブレーキ操作力の伝達方向に直交す
る方向において互いに偏倚されている棒状部材と、 前記棒状部材の、前記力伝達部材との接続部及び前記力
受け部材との接続部の間に配置された歪検出手段とを備
えることを特徴とするブレーキ操作力検出装置。1. A brake operating force is applied from a brake pedal .
A brake operating force detecting device for detecting a brake operating force, which is used in a brake device for transmitting a braking force to a star cylinder, the brake operating force detecting device being connected to the brake pedal,
Force transmitting member for transmitting the brake operating force, and the brake operating force received from the force transmitting member.
A force receiving member that transmits the brake operating force from the force transmitting member to the force receiving member, and a connection portion for connecting the force transmitting member and the force receiving member to the force transmitting member and the force transmitting member, and A rod-shaped member whose connecting portion with the force receiving member is offset from each other in a direction orthogonal to the transmission direction of the brake operating force; a connecting portion of the rod-shaped member with the force transmitting member; and a connecting portion with the force receiving member. And a strain detecting means disposed between the brake operating force detecting device.
は前記力受け部材のいずれか一方に回動可能に接続さ
れ、前記棒状部材 の中間部が前記力伝達部材又は前記力受け
部材の他方に接続され、 前記棒状部材の他端側の部分に、前記棒状部材の前記一
端に作用する力の方向と実質的に同じ方向に弾性的な付
勢力が作用するよう、当該部分をばね付勢手段により支
持したことを特徴とする請求項１に記載のブレーキ操作
力検出装置。2. One end of the rod-shaped member is rotatably connected to either the force transmission member or the force receiving member, and an intermediate portion of the rod-shaped member is the other of the force transmission member or the force receiving member. A spring-biased portion of the rod-shaped member so that an elastic biasing force acts on the portion on the other end side of the rod-shaped member in a direction substantially the same as the direction of the force acting on the one end of the rod-shaped member. The brake operation force detection device according to claim 1, wherein the brake operation force detection device is supported by means.
あることを特徴とする請求項２に記載のブレーキ操作力
検出装置。3. The brake operation force detection device according to claim 2, wherein the spring force of the spring biasing means is adjustable.
調整可能であることを特徴とする請求項２又は３に記載
のブレーキ操作力検出装置。4. The brake operation force detection device according to claim 2, wherein the position of the support point by the spring biasing means is adjustable.
にペダル側ロッドを介して接続されたベース部材であ
り、 前記力受け部材が、前記ブレーキペダルのブレーキ操作
力を助勢して前記マスタシリンダに伝えるブースタに延
びるブースタ側ロッドであることを特徴とする請求項１
〜４のいずれか１項に記載のブレーキ操作力検出装置。 5. The force transmitting member is the brake pedal.
Is a base member connected to the
The force receiving member is a brake operation of the brake pedal.
Extends the booster to assist the force and transmit it to the master cylinder.
The rod is a booster side rod.
The brake operation force detection device according to any one of items 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27553098A JP3531154B2 (en) | 1998-09-29 | 1998-09-29 | Brake operation force detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27553098A JP3531154B2 (en) | 1998-09-29 | 1998-09-29 | Brake operation force detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000103325A JP2000103325A (en) | 2000-04-11 |
| JP3531154B2 true JP3531154B2 (en) | 2004-05-24 |
Family
ID=17556741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27553098A Expired - Lifetime JP3531154B2 (en) | 1998-09-29 | 1998-09-29 | Brake operation force detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3531154B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097976A (en) * | 2010-09-07 | 2013-05-08 | 丰田铁工株式会社 | Pedal manipulation-amount detection apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5003062B2 (en) * | 2006-08-29 | 2012-08-15 | トヨタ自動車株式会社 | break pedal |
| BRPI0823199B1 (en) | 2008-12-03 | 2020-09-29 | Toyota Jidosha Kabushiki Kaisha | OPERATING LARGE DETECTION DEVICE |
| JP5062211B2 (en) * | 2009-03-26 | 2012-10-31 | トヨタ自動車株式会社 | Operation amount detection device |
| WO2010116464A1 (en) * | 2009-03-30 | 2010-10-14 | トヨタ自動車株式会社 | Operation amount detection device |
| JP5210469B2 (en) * | 2009-07-10 | 2013-06-12 | 豊田鉄工株式会社 | Strain detection sensor and pedal force detection device using the same |
| JP4989714B2 (en) * | 2009-12-22 | 2012-08-01 | トヨタ自動車株式会社 | Operation amount detection device |
| JP5440379B2 (en) * | 2010-05-24 | 2014-03-12 | トヨタ自動車株式会社 | Operation amount detection device |
| JP5331070B2 (en) * | 2010-08-06 | 2013-10-30 | 豊田鉄工株式会社 | Pedal operation amount detection device |
| JP5832741B2 (en) * | 2010-12-01 | 2015-12-16 | アルプス電気株式会社 | Brake operating force detection device |
| JP5619054B2 (en) | 2012-03-07 | 2014-11-05 | 豊田鉄工株式会社 | Pedal operation amount detection device |
| JP6595527B2 (en) * | 2017-03-24 | 2019-10-23 | アイシン精機株式会社 | Pedal force detection device |
| KR102596296B1 (en) * | 2019-05-22 | 2023-10-31 | 현대모비스 주식회사 | Device of pedal stroke sensor |
| CN110307933B (en) * | 2019-07-16 | 2024-03-29 | 西南交通大学 | Static calibration test bed for coupler force of railway vehicle |
-
1998
- 1998-09-29 JP JP27553098A patent/JP3531154B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097976A (en) * | 2010-09-07 | 2013-05-08 | 丰田铁工株式会社 | Pedal manipulation-amount detection apparatus |
| CN103097976B (en) * | 2010-09-07 | 2015-03-25 | 丰田铁工株式会社 | Pedal manipulation-amount detection apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000103325A (en) | 2000-04-11 |
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