JPH01297386A - Bank angle detecting device eor motorcycle - Google Patents
Bank angle detecting device eor motorcycleInfo
- Publication number
- JPH01297386A JPH01297386A JP63126342A JP12634288A JPH01297386A JP H01297386 A JPH01297386 A JP H01297386A JP 63126342 A JP63126342 A JP 63126342A JP 12634288 A JP12634288 A JP 12634288A JP H01297386 A JPH01297386 A JP H01297386A
- Authority
- JP
- Japan
- Prior art keywords
- bank angle
- wave receiving
- angle
- vehicle body
- output
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000001747 exhibiting effect Effects 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
オートバイ等の二輪車を運転して、カーブ道路を走行（
コーナリング）するような場合、車体がスリップしない
ように、車体を左右いずれかの方向に傾斜（バンク）さ
せ、バランスを保ちつつ走行するが、このときの車体の
傾度を一般にバンク角とよぶ。[Detailed Description of the Invention] <Industrial Application Field> Driving a two-wheeled vehicle such as a motorcycle on a curved road (
When cornering, the vehicle leans (banks) to either the left or right to prevent the vehicle from slipping while maintaining balance, and the tilt of the vehicle at this time is generally referred to as the bank angle.
本発明は、このバンク角を検出して１例えばスリップ防
止のための警報、ウィンカ−のオンオフ制御、ヘッドラ
イトの光角度制御等に応用されるバンク角検出装置に係
るものである。The present invention relates to a bank angle detection device which detects this bank angle and is applied to, for example, warnings for preventing slippage, on/off control of blinkers, light angle control of headlights, etc.
〈従来技術〉
車体のバンク角を検出する手段として、マイクロスイッ
チ又は圧電素子をステップに吊設し、車体が一定のバン
ク角を越えたとき、前記スイッチ又は圧電素子を路面と
衝突、又は接触させ、圧電材料の機械的歪に伴う電気信
号によって、そのバンク角を検知するもの（実公昭６２
−２５４２９）が公知である。<Prior art> As a means for detecting the bank angle of a car body, a micro switch or a piezoelectric element is suspended from a step, and when the car body exceeds a certain bank angle, the switch or piezoelectric element collides with or comes into contact with the road surface. , which detects the bank angle of a piezoelectric material using an electrical signal caused by mechanical strain (Jetkotsu 62)
-25429) is publicly known.
〈発明が解決しようとする課題〉
ところが、上述の従来構成にあっては、一定のバンク角
を検出し、車体が所定のバンク角を越えたときランプ、
ブザー等の警報器を駆動してライダーに注意を喚起させ
る等、現在の状態が、そのバンク角以内であるかどうか
のみを検知できるものであるため、運転状態に即応した
制御のためにバンク角検出をしようとする場合に対応で
きなかった。<Problems to be Solved by the Invention> However, in the conventional configuration described above, a certain bank angle is detected, and when the vehicle body exceeds a predetermined bank angle, the lamp,
Because it can detect only whether the current condition is within the bank angle by driving an alarm such as a buzzer to alert the rider, the bank angle can be adjusted to immediately respond to the driving condition. It was not possible to respond when trying to detect it.
また機械的接触により検知するものであるため、接触部
に大衝撃が付与され、破損頻度が高い欠点があった。Furthermore, since detection is performed through mechanical contact, a large impact is applied to the contact portion, resulting in a high frequency of breakage.
本発明は、車体の傾度に応じて、随時そのバンク角を検
出でき、スリップ防止のための警報を含めて、種々の制
御に用いることができる非接触型の二輪車のバンク角検
出装置を提供することを目的とするものである。The present invention provides a non-contact type two-wheeled vehicle bank angle detection device that can detect the bank angle at any time depending on the inclination of the vehicle body and can be used for various controls including warnings for preventing slippage. The purpose is to
く課題を解決するための手段〉
本発明は、
車体に取り付けられ、車体の進行方向に対し左右に揺動
しながら超音波パルスを路面に向けて放射するとともに
路面からの反射波を受波する超音波送受波器と、
該送受波器の揺動と連係し、車体の垂直方向に対する傾
度に応じた値を出力するポテンショメータと、
前記超音波送受波器により捕捉される反射波強度が最大
となる時のポテンショメータの出力値を取り出す回路
とを備えたことを特徴とする二輪車のバンク角検出装置
に関する。Means for Solving the Problems> The present invention is attached to a vehicle body, and radiates ultrasonic pulses toward the road surface while rocking left and right with respect to the traveling direction of the vehicle body, and receives reflected waves from the road surface. an ultrasonic transducer; a potentiometer that is linked to the rocking of the transducer and outputs a value corresponding to the inclination of the vehicle body in the vertical direction; The present invention relates to a bank angle detection device for a two-wheeled vehicle, characterized in that it is equipped with a circuit for extracting an output value of a potentiometer when
また、前記超音波送受波器の送受面形状を、進行方向に
長い楕円状の指向性パターンを呈する形状としたことを
特徴とする二輪車のバンク角検出装置に関する。The present invention also relates to a bank angle detection device for a two-wheeled vehicle, characterized in that the transmitting/receiving surface of the ultrasonic transducer has a shape exhibiting an elliptical directivity pattern that is elongated in the traveling direction.
〈作用〉
送受波器を揺動し、かつ該送受波器から、超音波を発信
すると、路面と、該送受波器の向きとが直交する位置で
、最大反射強度となって、受波される。一方、前記ポテ
ンショメータの出力は、車体と、送受波器との相対角度
に対応して変化するから、前記最大反射強度のときのポ
テンショメータの出力値を読み取れば、路面に対する車
体の傾斜角度（バンク角）が検出されることとなる。<Operation> When the transducer is oscillated and ultrasonic waves are emitted from the transducer, the maximum reflected intensity is reached at a position where the direction of the transducer and the road surface are orthogonal to each other, and the waves are not received. Ru. On the other hand, the output of the potentiometer changes depending on the relative angle between the vehicle body and the transducer, so if the output value of the potentiometer at the time of the maximum reflection intensity is read, the inclination angle (bank angle) of the vehicle body with respect to the road surface can be read. ) will be detected.
ところで、上述の構成にあって、正確なバンク角を検出
するためには、送受波器の指向角は狭いことが望ましい
。By the way, in the above-mentioned configuration, in order to accurately detect the bank angle, it is desirable that the directivity angle of the transducer is narrow.
一方、車体は、搭乗者の荷重や、路面の状態等により、
前後方向にも傾く。この傾きは、バンク角とは無関係で
あるが、車体の傾斜により、送受波器の反射強度が低下
すると、バンク角の検出に影響を及ぼす。このため、受
波特性にあって、前後方向の指向角は広いことが望まし
い。On the other hand, depending on the load of the passengers, the condition of the road surface, etc.
It also tilts forward and backward. This inclination is unrelated to the bank angle, but if the reflection intensity of the transducer decreases due to the inclination of the vehicle body, it will affect the detection of the bank angle. For this reason, it is desirable that the beam receiving characteristics have a wide directivity angle in the front and rear directions.
そこで、超音波送受波器の送受波面形状を、進行方向に
長い楕円状の指向性パターンを呈する形状とすると、車
体の傾斜に左右されることなく、しかも適正なバンク角
の検出が可能となる。Therefore, if the shape of the transmitting and receiving wave surface of the ultrasonic transducer is shaped to exhibit an elliptical directivity pattern that is long in the direction of travel, it becomes possible to detect an appropriate bank angle without being affected by the inclination of the vehicle body. .
〈実施例〉 本発明の一実施例について説明する。<Example> An embodiment of the present invention will be described.
第２図にあって、ｌは超音波送受波器であり、上面が開
放され、かつ下面を送受波面ｆとする円筒状ケース２の
内底面に、上下に電極面４．４が形成された圧電板３が
乗載される。該電極面４゜４には、ケーブル６からの入
出力用リード線５が接続され、送受波器ｌ内に充填した
樹脂製封止材７で絶縁状に保持される。In Fig. 2, l denotes an ultrasonic transducer, and electrode surfaces 4.4 are formed above and below on the inner bottom surface of a cylindrical case 2 whose upper surface is open and whose lower surface is a wave transmitting/receiving surface f. A piezoelectric plate 3 is mounted. An input/output lead wire 5 from a cable 6 is connected to the electrode surface 4.times.4, and is insulated and held by a resin sealing material 7 filled in the transducer 1.
前記送受波器１は、電極面４．４に交番電圧を印加する
ことにより、送受波面ｆから超音波が放射されると共に
、その反射波が送受波面ｆに入射されると、出力信号を
発生する。The transducer 1 emits an ultrasonic wave from the wave transmitting/receiving surface f by applying an alternating voltage to the electrode surface 4.4, and generates an output signal when the reflected wave is incident on the wave transmitting/receiving surface f. do.
第１．３図に示すように、前記送受波器ｌは、二輪車の
車体１０の下部に、そのケース２の送受波面ｆを路面に
向けて支持され、揺動機構１１により回転軸１２を中心
として進行方向に対し左右に揺動する。As shown in FIG. 1.3, the wave transmitter/receiver l is supported at the lower part of the vehicle body 10 of a two-wheeled vehicle with the wave transmitting/receiving surface f of its case 2 facing the road surface, and is centered around a rotation axis 12 by a swinging mechanism 11. It swings left and right with respect to the direction of travel.
この揺動機構１１は、スライタクランク機構や、可逆回
転モーフ等種々適用され得る。This swing mechanism 11 can be applied in various ways, such as a slider crank mechanism or a reversible rotation morph.
また、揺動機構１１には、ポテンショメータ１４が連係
しており、前記送受波器ｌの傾斜角度に応じた出力を生
ずるようにしている。Further, a potentiometer 14 is linked to the swing mechanism 11 so as to generate an output according to the inclination angle of the transducer l.
このポテンショメータ１４の例としては、第１図に示す
ように、リニヤ抵抗体１５を用いた構成が適用され得る
。すなわち、前記揺動機構１１の揺動作動に従って、リ
ニヤ抵抗体１５を摺動するブラシ１６を配置し、そのブ
ラシ１６の移動により抵抗値を変化させ、該抵抗値と、
送受波器１の傾斜角度とに所定関係を生じさせる。而し
て、該抵抗値により、送受波器１の傾斜角度を知ること
ができるようになる。As an example of this potentiometer 14, as shown in FIG. 1, a configuration using a linear resistor 15 can be applied. That is, a brush 16 that slides on the linear resistor 15 is arranged according to the swinging motion of the swinging mechanism 11, and the resistance value is changed by the movement of the brush 16, and the resistance value and
A predetermined relationship is created with the inclination angle of the transducer 1. Thus, the inclination angle of the transducer 1 can be determined from the resistance value.
またポテンショメータ１４の他の構成として、回転軸１
２又は回動モータの回転角を検出する回転センサを適用
することもできる。この回転センサとしては、光学式、
電磁誘導式のほか、該回転軸に、その回転に伴って磁界
変化を生じさせるようにし、この磁界変化を強磁性薄膜
抵抗素子を用いて検知する等種々の構成が提案され得る
。In addition, as another configuration of the potentiometer 14, the rotating shaft 1
2 or a rotation sensor that detects the rotation angle of the rotation motor can also be applied. This rotation sensor is an optical type,
In addition to the electromagnetic induction type, various other configurations may be proposed, such as generating a magnetic field change on the rotating shaft as it rotates and detecting this magnetic field change using a ferromagnetic thin film resistance element.
尚、回転センサを用いた場合には、送受波器ｌの揺動角
に対応する電圧出力を直接得ることも可能となる。Note that when a rotation sensor is used, it is also possible to directly obtain a voltage output corresponding to the swing angle of the transducer l.
前記構成にあって、送受波器ｌの電極面４．４には発振
回路２０と、受信回路２１とが並列状に接続される。In the above configuration, an oscillation circuit 20 and a reception circuit 21 are connected in parallel to the electrode surface 4.4 of the transducer l.
そして、前記受信回路２Ｉからの出力と、前記ポテンシ
ョメータ１４からの出力に基づき、バンク角測定回路２
２により、車体ｌＯのバンク角が検出される。Then, based on the output from the receiving circuit 2I and the output from the potentiometer 14, the bank angle measuring circuit 2
2, the bank angle of the vehicle body lO is detected.
このバンク角測定回路２２の構成を第１図についてさら
に説明すると、前記ポテンショメータ１４の抵抗値は、
関数電圧発生回路２３により電圧値に変換される。尚、
ポテンショメータ１４が電圧を直接出力する構成のもの
であれば、該関数電圧発生回路２３は不要となる。また
、前記受信回路２１からの出力波はピーク値検出回路２
４に入力され、該検出回路２４により、所定閾値以上の
出力レベルの発生があった場合に、これをパルス波とし
て整形し出力される。そして、ピックアップ回路２５に
より、ピーク値検出回路２４からパルス出力が生じた時
点の関数電圧発生回路２３からの出力値が取り出される
。To further explain the configuration of this bank angle measuring circuit 22 with reference to FIG. 1, the resistance value of the potentiometer 14 is as follows.
The function voltage generation circuit 23 converts it into a voltage value. still,
If the potentiometer 14 is configured to directly output a voltage, the function voltage generation circuit 23 is unnecessary. Further, the output wave from the receiving circuit 21 is transmitted to the peak value detecting circuit 2.
4, and when an output level higher than a predetermined threshold is generated by the detection circuit 24, this is shaped into a pulse wave and output. Then, the output value from the function voltage generation circuit 23 at the time when the pulse output is generated from the peak value detection circuit 24 is taken out by the pickup circuit 25.
かかる構成にあって、第３図で示すように、送受波器１
から照射された超音波は、その照射方向が路面に対して
直交する場合には、該路面に反射して、送受波面ｆに入
射することとなる。従って、送受波器１から最大出力を
生じる場合は、送受波面ｆと路面とが平行となった時で
あり、送受波器１の車体ｌＯに対する傾斜角度が、車体
１０の路面に対する傾斜角度（バンク角）θと等しい時
となる。In such a configuration, as shown in FIG.
If the irradiation direction is perpendicular to the road surface, the ultrasonic waves emitted from the road surface will be reflected by the road surface and will be incident on the wave transmitting/receiving surface f. Therefore, when the maximum output is generated from the transducer 1, it is when the transducer/receiver surface f and the road surface are parallel, and the inclination angle of the transducer 1 with respect to the vehicle body lO is the inclination angle of the vehicle body 10 with respect to the road surface (bank angle) is equal to θ.
このため、前記ピックアップ回路２５からの出力は、前
記送受波器ｌの傾斜角度と、バンク角θとが一致した時
に生ずる関数電圧発生回路２３の値を抽出するものであ
るから、前記バンク角Ｏの関数値となる。Therefore, the output from the pickup circuit 25 is to extract the value of the function voltage generation circuit 23 that occurs when the inclination angle of the transducer l and the bank angle θ match, so the bank angle O becomes the function value.
そこで、このピックアップ回路２５からの出力を利用す
ることにより、スリップ防止のための７報、ウィンカ−
のオンオフ制御、ヘッドライトの光角度制御等が可能と
なる。Therefore, by using the output from this pickup circuit 25, 7 signals and turn signals for preventing slipping can be used.
It is possible to control the on/off of the headlights, the light angle of the headlights, etc.
ところで、正確なバンク角θを検出するためには、上述
のように、送受波器の向きが路面に対して直交したとき
に、ピーク値検出回路２４から出力を生ずる必要がある
。このため、該送受波器の指向角は狭いことが望ましい
。By the way, in order to accurately detect the bank angle θ, it is necessary to generate an output from the peak value detection circuit 24 when the direction of the transducer is perpendicular to the road surface, as described above. For this reason, it is desirable that the directivity angle of the transducer be narrow.
一方、車体１０は、搭乗者の荷重や、路面の状態等によ
り、前後方向にも傾く、この傾きは、バンク角θとは無
関係であり、車体の傾斜により、送受波２ｉｌｉｌから
の出力が低下すると、バンク角Ｏの検出に影響を及ぼす
、このため、受波特性にあって、前後方向の指向角は広
いことが望ましい。On the other hand, the vehicle body 10 also tilts in the longitudinal direction due to the load of the occupants, the condition of the road surface, etc. This tilt is unrelated to the bank angle θ, and the output from the transmitting and receiving waves 2ilil decreases due to the tilt of the vehicle body. This will affect the detection of the bank angle O. Therefore, in terms of wave receiving characteristics, it is desirable that the directivity angle in the front and rear directions be wide.
そこで、前記超音波送受波器１の送受波面形状を、進行
方向に長い楕円状の指向性パターンを呈する形状とする
必要がある。Therefore, the shape of the wave transmitting/receiving surface of the ultrasonic transducer 1 needs to be shaped to exhibit an elliptical directivity pattern that is long in the direction of travel.
第４図は、この指向パターンを実現するための送受波面
ｆの構成を示すものである。FIG. 4 shows the configuration of the wave transmitting/receiving surface f for realizing this directivity pattern.
ここで、３０は、前記送受波面ｆの直径方向に渡って形
成された略矩形状基板３１と、その中心に形成された円
形凸部３２とからなる、指向角制御板であって、プラス
チック材料等により一体成形されている。Here, reference numeral 30 denotes a directivity angle control plate made of a plastic material, comprising a substantially rectangular substrate 31 formed across the diameter direction of the wave transmitting/receiving surface f, and a circular convex portion 32 formed at the center thereof. It is integrally molded by etc.
この構成にあって、略矩形状基板３１の長平方向を車体
１０の左右方向に一致させる。これにより、基板３１の
小幅方向では広い指向角を達成でき、広幅方向では指向
角が狭くなる。このため、車体ｌＯに対してその進行方
向（前後方向）では広い指向角度を生じ、車体１０の前
後方向の傾斜によ−〕で、前記出力が大きく左右されな
いこととなる。また左右方向では指向角度が狭くなって
正確なバンク角θの検出が可能となる。尚、前記円形凸
部３２により、前記送受波面ｆからの副極（サイドロー
ブ）が除去され、その指向性が鋭くなる。In this configuration, the elongated direction of the substantially rectangular substrate 31 is aligned with the left-right direction of the vehicle body 10. As a result, a wide directivity angle can be achieved in the narrow width direction of the substrate 31, and a narrow directivity angle in the wide width direction. Therefore, a wide directivity angle is generated in the direction of movement (front-rear direction) with respect to the vehicle body 10, and the output is not greatly affected by the tilt of the vehicle body 10 in the front-rear direction. Furthermore, the directivity angle becomes narrower in the left-right direction, making it possible to accurately detect the bank angle θ. Note that the circular convex portion 32 removes subpoles (side lobes) from the wave transmitting/receiving surface f, thereby sharpening its directivity.
上記構成にあって、円筒状ケース２の直径を２０ｍｕｍ
、基根３１の幅（円形凸部３２の直径）を９１ｍ１１１
とした場合に、左右方向の指向角は約６°であり、前後
方向の指向角は約１２°となり、前後方向への指向角の
拡大が見られた。In the above configuration, the diameter of the cylindrical case 2 is 20mm.
, the width of the base 31 (the diameter of the circular convex part 32) is 91 m111
In this case, the directivity angle in the left-right direction was about 6°, and the directivity angle in the front-rear direction was about 12°, indicating an expansion of the directivity angle in the front-rear direction.
而して、前記送受波面ｆに指向角制御板３０を付加する
ことにより、車体１０の傾斜に左右されることなく、適
正なバンク角０の検出が可能となる。By adding the directivity angle control plate 30 to the wave transmitting/receiving surface f, it becomes possible to detect an appropriate bank angle 0 without being affected by the inclination of the vehicle body 10.
〈発明の効果〉
本発明は前記の説明によって明らかにしたように、車体
１０に、左右方向に揺動する送受波器ｌを配設し、その
最大出力での前記送受波器ｌの傾斜角度をピックアップ
することにより、バンク角０を検出するようにしたもの
であるから、該バンク角θを逐次検出できて、例えばス
リップ防止のための警報、ウィンカ−のオンオフ制御、
ヘッドライトの光角度制御等に応用することが可能とな
る。また路面との機械的接触により検知するものではな
いから、機器の損耗が少ない。<Effects of the Invention> As clarified by the above description, the present invention provides a vehicle body 10 with a transducer l that swings in the left-right direction, and an angle of inclination of the transducer l at its maximum output. Since the bank angle θ is detected by picking up the bank angle θ, the bank angle θ can be detected sequentially, and can be used, for example, for alarms to prevent slipping, turn signal on/off control, etc.
This can be applied to things such as controlling the light angle of headlights. Additionally, since the detection is not based on mechanical contact with the road surface, there is less wear and tear on the equipment.
さらにまた、超音波送受波器１の送受波面形状を、進行
方向に長い楕円状の指向性パターンを呈する形状とした
場合には、車体１０が前後方向に傾斜しても、これに影
響されることなく、可及的正確なバンク角θの検出が可
能となる。Furthermore, if the shape of the transmitting and receiving wave surface of the ultrasonic transducer 1 is a shape that exhibits an elliptical directivity pattern that is long in the direction of travel, even if the vehicle body 10 is tilted in the front-rear direction, it will not be affected by this. Therefore, it is possible to detect the bank angle θ as accurately as possible.
添付図面は本発明の一実施例を示し、第１図は本発明の
概要図、第２図は送受波器ｌの縦断面図、第３図は送受
波器１と車体ｌＯとの関係を示す正面図、第４図は送受
波面ｆに指向角制御板３０を付加した送受波器１の斜視
図である。
■・・・送受波器
ｌＯ・・・車体
１１・・・揺動機構
１４・・・ポテンショメータ
２２・・・バンク角測定回路
３０・・・指向角制御板
ｆ・・・送受波面
第３図
第４図
ｆ
／The attached drawings show one embodiment of the present invention, and FIG. 1 is a schematic diagram of the present invention, FIG. 2 is a longitudinal cross-sectional view of the transducer 1, and FIG. 3 is a diagram showing the relationship between the transducer 1 and the vehicle body IO. The front view shown in FIG. 4 is a perspective view of the transducer 1 in which a directivity angle control plate 30 is added to the wave transmitting/receiving surface f. ■...Transducer/receiver lO...Vehicle body 11...Rocking mechanism 14...Potentiometer 22...Bank angle measuring circuit 30...Direction angle control plate f...Transmitting/receiving wave surface Fig. 3 Figure 4 f/
Claims (1)
揺動しながら超音波パルスを路面に向けて放射するとと
もに路面からの反射波を受波する超音波送受波器と、 該送受波器の揺動と連係し、車体の垂直方向に対する傾
度に応じた値を出力するポテンショメータと、 前記超音波送受波器により捕捉される反射波強度が最大
となる時のポテンショメータの出力値を取り出す回路 とを備えたことを特徴とする二輪車のバンク角検出装置
。 ２）前記超音波送受波器の送受波面形状を、進行方向に
長い楕円状の指向性パターンを呈する形状としたことを
特徴とする特許請求の範囲第１項記載の二輪車のバンク
角検出装置。[Claims] 1) An ultrasonic transducer that is attached to the vehicle body and emits ultrasonic pulses toward the road surface while swinging left and right with respect to the traveling direction of the vehicle body and receives reflected waves from the road surface. a potentiometer that outputs a value corresponding to the inclination of the vehicle body with respect to the vertical direction in conjunction with the swinging of the ultrasonic transducer; and a potentiometer that outputs a value corresponding to the inclination of the vehicle body in the vertical direction; A bank angle detection device for a two-wheeled vehicle, comprising a circuit for extracting an output value. 2) The bank angle detection device for a two-wheeled vehicle according to claim 1, wherein the wave transmitting/receiving surface of the ultrasonic transducer has a shape exhibiting an elliptical directivity pattern that is elongated in the traveling direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63126342A JP2709394B2 (en) | 1988-05-23 | 1988-05-23 | Motorcycle bank angle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63126342A JP2709394B2 (en) | 1988-05-23 | 1988-05-23 | Motorcycle bank angle detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01297386A true JPH01297386A (en) | 1989-11-30 |
| JP2709394B2 JP2709394B2 (en) | 1998-02-04 |
Family
ID=14932794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63126342A Expired - Fee Related JP2709394B2 (en) | 1988-05-23 | 1988-05-23 | Motorcycle bank angle detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2709394B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000023316A1 (en) * | 1998-10-20 | 2000-04-27 | Gray William R | Motorcycle warning device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164683A (en) * | 1987-12-18 | 1989-06-28 | Suzuki Motor Co Ltd | Head lamp for motorcycle |
-
1988
- 1988-05-23 JP JP63126342A patent/JP2709394B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164683A (en) * | 1987-12-18 | 1989-06-28 | Suzuki Motor Co Ltd | Head lamp for motorcycle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000023316A1 (en) * | 1998-10-20 | 2000-04-27 | Gray William R | Motorcycle warning device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2709394B2 (en) | 1998-02-04 |
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