JPS61175183A - Rear wheel steering control device - Google Patents
Rear wheel steering control deviceInfo
- Publication number
- JPS61175183A JPS61175183A JP1682785A JP1682785A JPS61175183A JP S61175183 A JPS61175183 A JP S61175183A JP 1682785 A JP1682785 A JP 1682785A JP 1682785 A JP1682785 A JP 1682785A JP S61175183 A JPS61175183 A JP S61175183A
- Authority
- JP
- Japan
- Prior art keywords
- rear wheel
- wheel steering
- vehicle speed
- car speed
- vehicle
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/148—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering provided with safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の技術分野］
この発明は、例えば前輪の操舵角に応じて後輪を逆方向
に自動的に操舵し車両の旋回半径を小さくする後輪操舵
制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a rear wheel steering control device that automatically steers rear wheels in the opposite direction in accordance with, for example, the steering angle of the front wheels to reduce the turning radius of a vehicle.
［発明の技術的背ｌ１ｌ
一般に、大型車両や前輪駆動車は通常その旋回半径が大
きく、例えば大型車両で狭い道を走行する際や、車庫入
れをスムーズに行なうには、熟練した運転技術を必要と
する。このため、最近では、車両の後輪を前輪の舵角に
応じて自動的に操舵する後輪操舵装置が考えられている
。この後輪操舵装置は、例えば前輪が右あるいは左方向
に一定角度以上操舵された際に、後輪をそれとは逆方向
に操舵して極めて小さい旋回半径を得るもので、これに
より車庫入れ、縦列駐車等の運転操作を容易にしている
。このように、前輪に対して後輪を逆方向に操舵して小
さい旋回半径を得る後輪操舵装置では、高速走行時の後
輪操舵による車体姿勢の急変を防止するために、車速セ
ンサにより検出される車速が一定車速値を越えた場合に
は、後輪の操舵は禁止されるようになっている。すなわ
ち、車速センサにより検出される車速が予め設定される
一定車速値を上回ると、後輪操舵用の油圧シリンダを中
立位置でロックし、後輪操舵装置を備えた車両の高速走
行時における安全を図っている。[Technical Background of the Invention] In general, large vehicles and front-wheel drive vehicles usually have a large turning radius, and require skilled driving skills, for example, when driving a large vehicle on a narrow road or smoothly pulling it into a garage. shall be. For this reason, recently, rear wheel steering devices have been developed that automatically steer the rear wheels of a vehicle according to the steering angle of the front wheels. This rear wheel steering device, for example, when the front wheels are steered to the right or left over a certain angle, steers the rear wheels in the opposite direction to obtain an extremely small turning radius. This makes driving operations such as parking easier. In this way, a rear wheel steering system that steers the rear wheels in the opposite direction to the front wheels to achieve a small turning radius uses a vehicle speed sensor to detect If the vehicle speed exceeds a certain vehicle speed value, steering of the rear wheels is prohibited. In other words, when the vehicle speed detected by the vehicle speed sensor exceeds a preset constant vehicle speed value, the hydraulic cylinder for rear wheel steering is locked at the neutral position to ensure safety when driving at high speeds in vehicles equipped with rear wheel steering devices. I'm trying.
［背景技術の問題点コ
しかしこのように構成される後輪操舵装置では、例えば
、車速センサが故障すると、その車速検出信号がコント
ローラに供給されなくなるか、あるいは異常信号となる
ため、車速が一定車速値を越えたにも係わらずコントロ
ーラは後輪操舵用のシリンダをロックする指令信号を出
力しなくなってしまう。この場合、高速運転中であるに
も係わらず、後輪が操舵されてしまうこととなり、車体
姿勢が急変する恐れが生じる。[Problems with the Background Art] However, in a rear wheel steering system configured in this manner, for example, if the vehicle speed sensor fails, the vehicle speed detection signal will not be supplied to the controller or will become an abnormal signal, so the vehicle speed will not remain constant. Even though the vehicle speed exceeds the vehicle speed value, the controller no longer outputs a command signal to lock the rear wheel steering cylinder. In this case, even though the vehicle is driving at high speed, the rear wheels will be steered, and there is a risk that the vehicle body posture will suddenly change.
この発明は上記のような問題点に鑑みなされたもので、
車速が一定車速値を上回った場合のみならず、車速セン
サが故障した場合でも、後輪の操舵を禁止し、高速走行
時において車体姿勢が急変するような恐れを無くすこと
ができるようになる後輪操舵制御装置を提供することを
目的とする。This invention was made in view of the problems mentioned above.
It will be possible to prohibit steering of the rear wheels not only when the vehicle speed exceeds a certain vehicle speed value, but also when the vehicle speed sensor fails, eliminating the risk of sudden changes in vehicle body posture when driving at high speeds. An object of the present invention is to provide a wheel steering control device.
［発明の概要］
すなわちこの発明に係わる後輪操舵制御装置は、車速セ
ンサの故障を検出した際にも後輪操舵を禁止するように
したものである。[Summary of the Invention] That is, the rear wheel steering control device according to the present invention is configured to prohibit rear wheel steering even when a failure of a vehicle speed sensor is detected.
［発明の実施例］ 以下図面によりこの発明の一実施例を説明する。[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.
第１図はその構成を示すもので、この図において１１は
エンジン、１２ａ、１２ｂはこのエンジン１１により駆
動される油圧ポンプ、１３はオイルリザーバである。ま
た、１４は上記油圧ポンプ１２ａ、１２ｂのうち、一方
の油圧ポンプ１２ａから前輪１５ａ、１５ｂ操舵用ギヤ
ボツクス１５に延びた油路、１６が他方の油圧ポンプ１
２ｂから後輪操舵用油圧制御弁１７に延びた高圧油路で
ある。この後輪操舵用油圧制御弁１７は、例えば電磁式
の切換弁機構にて構成されるもので、１８が上記リザー
バ１３に延びた低圧油路、１９ａ。FIG. 1 shows its configuration. In this figure, 11 is an engine, 12a and 12b are hydraulic pumps driven by the engine 11, and 13 is an oil reservoir. Further, 14 is an oil path extending from one of the hydraulic pumps 12a and 12b to the front wheels 15a and 15b steering gear box 15, and 16 is an oil path extending from the other hydraulic pump 12a.
This is a high pressure oil passage extending from 2b to the rear wheel steering hydraulic control valve 17. The rear wheel steering hydraulic control valve 17 is constituted by, for example, an electromagnetic switching valve mechanism, and 18 is a low pressure oil passage 19a extending to the reservoir 13.
１９ｂが後輪操舵用油圧シリンダ２０に延びた油路であ
る。この後輪操舵用油圧シリンダ２０は、そのシリンダ
本体を貫通して両端が突出したピストンロッド２１とに
より構成されるもので、２２ａ、２２ｂがこのピストン
ロッド２１に連結した後輪２３８．２３ｂ側の平行リン
クである。19b is an oil passage extending to the rear wheel steering hydraulic cylinder 20. This rear wheel steering hydraulic cylinder 20 is composed of a piston rod 21 that passes through the cylinder body and has both ends protruding. It is a parallel link.
次に、２４がステアリングホイール２５の回転軸に取付
けられた前輪操舵角センサ、２６がスピードメータ２７
に取付けられた第１の車速センサ、２８がオートマチッ
クトランスミッションのギヤシフトユニット２９の出力
軸に取付けられた第２の車速センサ、３０がこのギヤシ
フトユニット２つに取付けられた変速段センサ、３１は
セレクタレバーである。ここで、上記前輪操舵角センサ
２４からの前輪舵角検出信号、第１および第２の車速セ
ンサ２６．２８からの車速検出信号、変速段センサ３０
からの変速段検出信号は、すべて後輪操舵コントローラ
３２に供給される。この後輪操舵コントローラ３２は、
上記各センサからの検出信号の内容に基づいて上記後輪
操舵用油圧制御弁１７に油圧弁切換信号ａを供給し後輪
操舵用油圧シリンダ２０のピストンロッド２１の作動方
向を右、左、あるいは中立位置に切換え、また、ギヤシ
フトユニット２９に変速段切換え信号すを供給して設定
変速段を切換える。また、この後輪操舵コントローラ３
２は、上記２個の車速センサ２６．２８からの各車速検
出信号値を常に比較し、その差が所定値以上となると「
車速センサ故障」と判断するもので、この際、このコン
トローラ３２は上記ギヤシフトユニット２９に対して、
セレクタレバー３１がＤレンジである場合に限って「３
速保持」の変速段切換え信号すを供給する機能を持って
いる。ざらに、上記コントローラ３２は、各車速センサ
２６，２８により検出される車速値が一定車速値を上回
った際に、上記後輪操舵用油圧制御弁１７に上記後輪操
舵用油圧シリンダ２０のピストンロッド２１の位置を中
立位置で口ツクするための「後輪操舵禁止」の油圧弁切
換え信号ａを供給する機能をも併せ持っている。Next, 24 is a front wheel steering angle sensor attached to the rotating shaft of the steering wheel 25, and 26 is a speedometer 27.
28 is a second vehicle speed sensor attached to the output shaft of the gear shift unit 29 of the automatic transmission, 30 is a gear position sensor attached to the two gear shift units, and 31 is a selector lever. It is. Here, the front wheel steering angle detection signal from the front wheel steering angle sensor 24, the vehicle speed detection signal from the first and second vehicle speed sensors 26 and 28, and the gear position sensor 30
All gear position detection signals from the rear wheel steering controller 32 are supplied to the rear wheel steering controller 32. This rear wheel steering controller 32 is
Based on the contents of the detection signals from each sensor, a hydraulic valve switching signal a is supplied to the rear wheel steering hydraulic control valve 17 to change the operating direction of the piston rod 21 of the rear wheel steering hydraulic cylinder 20 to the right, left, or It switches to the neutral position, and also supplies a gear change signal to the gear shift unit 29 to change the set gear. In addition, this rear wheel steering controller 3
2 constantly compares the respective vehicle speed detection signal values from the two vehicle speed sensors 26 and 28, and when the difference exceeds a predetermined value,
In this case, the controller 32 issues a message to the gear shift unit 29.
“3” is selected only when the selector lever 31 is in the D range.
It has the function of supplying a gear change signal for "speed hold". Roughly, when the vehicle speed value detected by each vehicle speed sensor 26, 28 exceeds a constant vehicle speed value, the controller 32 causes the rear wheel steering hydraulic control valve 17 to control the piston of the rear wheel steering hydraulic cylinder 20. It also has the function of supplying a hydraulic valve switching signal a for "rear wheel steering prohibited" to set the rod 21 at the neutral position.
すなわちこのように構成される後輪操舵制御装置におい
て、まず後輪操舵機能について説明する。That is, in the rear wheel steering control device configured as described above, the rear wheel steering function will be explained first.
例えば、セレクタレバー３１がＤレンジにおける通常走
行時において、車両が曲り角に差掛かると、コントロー
ラ３２にはステアリングホイール２５の回転操作に対応
する前輪舵角検出信号が前輪操舵角センサ２４より供給
される。この際、曲り角が極めてきつく、前輪操舵角セ
ンサ２４により検出される前輪舵角が、予め設定される
一定の舵角を越えると、コントローラ３２は前輪１５ａ
。For example, during normal driving when the selector lever 31 is in the D range, when the vehicle approaches a turn, the front wheel steering angle sensor 24 supplies the controller 32 with a front wheel steering angle detection signal corresponding to the rotational operation of the steering wheel 25. . At this time, if the turning angle is extremely tight and the front wheel steering angle detected by the front wheel steering angle sensor 24 exceeds a preset constant steering angle, the controller 32
.
１５ｂの操舵方向とは逆の方向に後輪２３８．２３ｂを
操舵させるための油圧弁切換え信号ａを後輪操舵用油圧
制御弁１７に供給する。ここで、例えば上記的り角が右
折方向で前輪１５ａ、１５ｋ）の操舵方向が右方向Ｒで
ある場合には、油圧ポンプ１２ｂからの圧油は、高圧油
路１６．後輪操舵用油圧制御弁１７および油路１８ｂを
介して後輪操舵用油圧シリンダ２０の左室に供給される
。またこれと共に、上記シリンダ２ｏの右室から排出さ
れた圧油は、油路１９ａ、制御弁１７および低圧油路１
８を介してリザーバ１３に戻される。これにより、ピス
トンロッド２１は矢印Ｂで示す方向にスライドするよう
になり、後輪２３ａ、２３ｂは左方向りに一定角度操舵
されるようになる。A hydraulic valve switching signal a for steering the rear wheels 238, 23b in a direction opposite to the steering direction of the rear wheels 15b is supplied to the rear wheel steering hydraulic control valve 17. Here, for example, when the above-mentioned target angle is in the right turn direction and the steering direction of the front wheels 15a, 15k) is in the right direction R, the pressure oil from the hydraulic pump 12b is transferred to the high pressure oil path 16. The oil is supplied to the left chamber of the rear wheel steering hydraulic cylinder 20 via the rear wheel steering hydraulic control valve 17 and the oil passage 18b. At the same time, the pressure oil discharged from the right chamber of the cylinder 2o is transferred to the oil passage 19a, the control valve 17 and the low pressure oil passage 1.
8 and returned to the reservoir 13. As a result, the piston rod 21 comes to slide in the direction shown by arrow B, and the rear wheels 23a and 23b come to be steered to the left by a certain angle.
一方、前輪１５ａ、１５ｂが左方向しに一定舵角操舵さ
れた場合には、油圧ポンプ１２ｂからの圧油は、高圧油
路１６．油圧制御弁１７および油路１９ａを介して油圧
シリンダ２０の右室に供給されると共に、このシリンダ
２０の左室から排出された圧油は、油路１９ｂ、油圧制
御弁１７および低圧油路１８を介してリザーバ１３に戻
される。On the other hand, when the front wheels 15a, 15b are steered to the left at a constant steering angle, the pressure oil from the hydraulic pump 12b is transferred to the high pressure oil path 16. Pressure oil is supplied to the right chamber of the hydraulic cylinder 20 via the hydraulic control valve 17 and the oil passage 19a, and is discharged from the left chamber of the cylinder 20 through the oil passage 19b, the hydraulic control valve 17, and the low pressure oil passage 18. is returned to the reservoir 13 via the
これにより、ピストンロッド２１は矢印Ａで示す方向に
スライドするようになり、後輪２３ａ、２３ｂは右方向
Ｒに一定角度操舵されるようになる。As a result, the piston rod 21 comes to slide in the direction shown by arrow A, and the rear wheels 23a and 23b are steered in the right direction R by a certain angle.
すなわち、上述したようなきつい曲り角を曲がる場合、
あるいは車庫入れ等を行なう場合には、後輪２３ａ、２
３ｂを前輪１５ａ、１５ｂと逆方向に操舵させることに
より、極めて小さい旋回半径が得られるようになり、運
転操作を簡単化することができる。In other words, when turning a sharp corner like the one mentioned above,
Alternatively, when parking the vehicle in a garage, etc., the rear wheels 23a, 2
By steering the wheel 3b in the opposite direction to the front wheels 15a and 15b, an extremely small turning radius can be obtained, and the driving operation can be simplified.
このような後輪操舵機能を有する後輪操舵制御装置にお
いて、後輪操舵コントローラ３２は、第１および第２の
車速センサ２６，２８からの車速検出信号を常に入力し
、走行車速が一定車速を上回った場合には、後輪操舵用
油圧制御弁１７に「後輪操舵禁止」の油圧弁切換え信号
を出力し、後輪操舵用油圧シリンダ２０への油圧回路を
遮断することによってピストンロッド２１を中立位置に
ロックする。これにより高速走行時における後輪操舵を
禁止して安全性を高めているが、車速センサ２６．２８
が故障した場合には、高速走行に対応する車速検出信号
がコントローラ３２に供給されない恐れがあるので、こ
のような場合には、コントローラ３２は後輪操舵を全面
的に禁止する制御を行なう。すなわち、後輪操舵コント
ローラ３２は、常時同様の車速検出信号を出力している
はずの各車速センサ２６．２８が、所定値以上差のある
奮運検出倍号を出力していると判疋しＴＣ阻に「車速セ
ンサ故障」と判断し、上記高速走行時における場合と同
様にして、後輪操舵用油圧シリンダ２０のピストンロッ
ド２１を中立位置にロックして後輪操舵を全面的に禁止
する。この場合、通常旋回時における後輪操舵による小
回りは不可能になるものの、高速走行時における安全性
を確保することができる。また、セレクタレバー３１が
Ｄレンジにおける走行状態にある場合には、変速段は車
速センサ２６．２８により検出される車速に応じて自動
的に変速設定されるため、コントローラ３２は上記のよ
うに「車速センサ異常」と判断すると、ギヤシフトユニ
ット２９に対して「３速保持」の変速段切換え信号を出
力し、変速段を強制的に３速に保持させる。これにより
、車速センサ２６．２８が故障した場合に、変速段が誤
って切換わっでしまうことを防止している。In the rear wheel steering control device having such a rear wheel steering function, the rear wheel steering controller 32 always inputs the vehicle speed detection signals from the first and second vehicle speed sensors 26 and 28, and the rear wheel steering controller 32 always inputs the vehicle speed detection signals from the first and second vehicle speed sensors 26, 28, so that the traveling vehicle speed maintains a constant vehicle speed. If it exceeds the limit, a hydraulic valve switching signal indicating "prohibit rear wheel steering" is output to the rear wheel steering hydraulic control valve 17, and the hydraulic circuit to the rear wheel steering hydraulic cylinder 20 is cut off, thereby stopping the piston rod 21. Lock in neutral position. This increases safety by prohibiting rear wheel steering when driving at high speeds, but the vehicle speed sensor 26.28
If this malfunctions, there is a possibility that a vehicle speed detection signal corresponding to high-speed running may not be supplied to the controller 32, so in such a case, the controller 32 performs control to completely prohibit rear wheel steering. In other words, the rear wheel steering controller 32 determines that the vehicle speed sensors 26 and 28, which are supposed to always output the same vehicle speed detection signal, are outputting effort detection multiples that differ by more than a predetermined value. TC is determined to be a "vehicle speed sensor malfunction", and the piston rod 21 of the rear wheel steering hydraulic cylinder 20 is locked in the neutral position to completely prohibit rear wheel steering, in the same way as when driving at high speeds. . In this case, although it becomes impossible to make a small turn by steering the rear wheels during a normal turn, it is possible to ensure safety during high-speed driving. Furthermore, when the selector lever 31 is in the driving state in the D range, the gear position is automatically set according to the vehicle speed detected by the vehicle speed sensor 26, 28, so the controller 32 operates as described above. If it is determined that the vehicle speed sensor is abnormal, it outputs a gear shift signal of "hold 3rd gear" to the gear shift unit 29 to forcibly hold the gear in 3rd gear. This prevents the gear from being erroneously switched in the event that the vehicle speed sensors 26, 28 fail.
尚、上記実施例では、２個の車速センサ２６゜２８それ
ぞれからの車速検出信号の差が、所定値以上となった際
に「車速センサ異常」と判断して後輪操舵を禁止すると
共に、変速段を３速保持するようにしているが、車両が
停止している車速ゼロの状態で変速段が３速に設定され
ているということは、必然的に車速センサが故障である
ことを意味するので、例えば車軸等に車速ゼロセンサ４
１なるものを取付けて車両の停止状態を検出できるよう
にし、変速段センサ３０により検出される設定変速段が
３速であって、且つ上記車速ゼロセンサ４１により車両
が停止状態にあることを検出した際に、後輪操舵用油圧
シリンダ２０のピストンロッド２１を中立位置でロック
して後輪操舵を禁止するように構成してもよい。In the above embodiment, when the difference between the vehicle speed detection signals from the two vehicle speed sensors 26 and 28 exceeds a predetermined value, it is determined that "vehicle speed sensor is abnormal" and rear wheel steering is prohibited. I try to keep the gear in 3rd gear, but if the gear is set in 3rd gear when the vehicle is stopped and the vehicle speed is zero, it inevitably means that the vehicle speed sensor is malfunctioning. Therefore, for example, install a vehicle speed zero sensor 4 on the axle, etc.
1 to be able to detect the stopped state of the vehicle, the set gear detected by the gear shift sensor 30 is 3rd speed, and the vehicle speed zero sensor 41 detects that the vehicle is in the stopped state. In this case, the piston rod 21 of the rear wheel steering hydraulic cylinder 20 may be locked at the neutral position to prohibit rear wheel steering.
［発明の効果］
以上のようにこの発明によれば、車両の前輪操舵角に応
じて後輪を自動的に操舵することにより、旋回半径の小
さな小回りが可能になると共に、車速が一定車速値を上
回った場合のみならず、車速センサが故障した場合でも
、後輪操舵を禁止するようにしたので、高速走行時にお
いて車体姿勢が急変するような恐れを無くすことができ
、さらに安全性の高い後輪操舵割部装置を実現できる。[Effects of the Invention] As described above, according to the present invention, by automatically steering the rear wheels according to the steering angle of the front wheels of the vehicle, it is possible to make a small turn with a small turning radius, and the vehicle speed is maintained at a constant vehicle speed value. Rear wheel steering is prohibited not only when the vehicle speed exceeds the maximum speed, but also when the vehicle speed sensor malfunctions, eliminating the risk of sudden changes in vehicle body posture when driving at high speeds, and further improving safety. A rear wheel steering division device can be realized.
第１図はこの発明の一実施例に係わる後輪操舵制御装置
を示す構成図である。
１２ａ、１２ｂ・・・油圧ポンプ、１５ａ、１５ｂ・・
・前輪、１７・・・後輪操舵用油圧制御弁、２０・・・
後輪操舵用油圧シリンダ、２１・・・ピストンロッド、
２３ａ、２３ｂ・・・後輪、２４・・・前輪操舵角セン
サ、２６・・・第１の車速センサ、２８・・・第２の車
速センサ、２９・・・ギヤシフトユニット、３０・・・
変速段センサ、３１・・・セレクタレバー、３２・・・
後輪操舵コントローラ、４１・・・車速ゼロセンサ。FIG. 1 is a configuration diagram showing a rear wheel steering control device according to an embodiment of the present invention. 12a, 12b...hydraulic pump, 15a, 15b...
・Front wheel, 17...Hydraulic control valve for rear wheel steering, 20...
Hydraulic cylinder for rear wheel steering, 21... piston rod,
23a, 23b... Rear wheel, 24... Front wheel steering angle sensor, 26... First vehicle speed sensor, 28... Second vehicle speed sensor, 29... Gear shift unit, 30...
Gear position sensor, 31...Selector lever, 32...
Rear wheel steering controller, 41...Vehicle speed zero sensor.
Claims (2)
輪操舵制御装置において、車両の二箇所に装備されそれ
ぞれにおいて車速を検出する第１および第２の車速セン
サと、この第１および第２の車速センサそれぞれの出力
信号の差が所定値以上か否かを判定する手段と、この第
１および第２の車速センサの出力信号差が所定値以上と
判定されると上記後輪の操舵を禁止する手段とを具備し
たことを特徴とする後輪操舵制御装置。(1) A rear wheel steering control device that automatically steers the rear wheels according to the steering angle of the front wheels of the vehicle includes first and second vehicle speed sensors that are installed at two locations on the vehicle and detect the vehicle speed at each location; and means for determining whether the difference between the output signals of the first and second vehicle speed sensors is greater than or equal to a predetermined value; 1. A rear wheel steering control device comprising: means for prohibiting steering of a rear wheel.
切換え保持するオートマチックトランスミッションの車
両に装備され前輪の操舵角に応じて後輪を自動操舵する
後輪操舵制御装置において、設定変速段を検出する変速
段センサと、車両の停止状態を検出する車速ゼロセンサ
と、上記変速段センサにより設定変速段が３速であるこ
とを検出し且つ上記車速ゼロセンサにより車両が停止状
態にあることを検出した際に上記後輪の操舵を禁止する
手段とを具備したことを特徴とする後輪操舵制御装置。(2) In a rear wheel steering control device that is installed in a vehicle with an automatic transmission that switches and maintains the gear position to 3rd gear when a failure of the vehicle speed sensor is detected, the rear wheel steering control device automatically steers the rear wheels according to the steering angle of the front wheels. a gear position sensor that detects the gear position; a vehicle speed zero sensor that detects a stopped state of the vehicle; A rear wheel steering control device comprising means for prohibiting the steering of the rear wheels when detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60016827A JPH0757611B2 (en) | 1985-01-31 | 1985-01-31 | Rear wheel steering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60016827A JPH0757611B2 (en) | 1985-01-31 | 1985-01-31 | Rear wheel steering control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61175183A true JPS61175183A (en) | 1986-08-06 |
| JPH0757611B2 JPH0757611B2 (en) | 1995-06-21 |
Family
ID=11927015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60016827A Expired - Fee Related JPH0757611B2 (en) | 1985-01-31 | 1985-01-31 | Rear wheel steering control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0757611B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257361A (en) * | 1985-05-07 | 1986-11-14 | Nippon Denso Co Ltd | Vehicle steering device |
| JPS62146775A (en) * | 1985-12-20 | 1987-06-30 | Mazda Motor Corp | Four-wheel steering device for vehicle |
| JPS63162369A (en) * | 1986-12-26 | 1988-07-05 | Nippon Seiko Kk | Motor driven type power steering control device |
| EP0289039A2 (en) * | 1987-05-01 | 1988-11-02 | Mazda Motor Corporation | Four-wheel steering system for motor vehicle |
| JPH01109480U (en) * | 1988-01-20 | 1989-07-24 | ||
| US4953650A (en) * | 1988-03-14 | 1990-09-04 | Mazda Motor Company | Rear wheel steering control system |
| EP0398182A2 (en) * | 1989-05-18 | 1990-11-22 | Nissan Motor Co., Ltd. | Auxiliary steering control apparatus |
| DE4017694A1 (en) * | 1989-06-06 | 1990-12-13 | Fuji Heavy Ind Ltd | Steering control for all-wheel drive vehicle - has speed sensors on both axles and corrected steering when speed differs on axles |
| US5014801A (en) * | 1988-02-10 | 1991-05-14 | Fuji Jukogyo Kabushiki Kaisha | Method and device for rear-wheel steering of automotive vehicle |
| US5054568A (en) * | 1989-05-18 | 1991-10-08 | Nissan Motor Co., Ltd. | Auxiliary steering control apparatus |
| US5068584A (en) * | 1988-11-29 | 1991-11-26 | Regie Nationale Des Usines Renault | Auxiliary device for handling failures of an actuating system of a linear electric actuator |
| EP1281972A2 (en) * | 2001-08-01 | 2003-02-05 | Delphi Technologies, Inc. | Vehicle speed diagnostic algorithm for four-wheel steering systems |
| CN115703501A (en) * | 2021-08-11 | 2023-02-17 | 比亚迪股份有限公司 | Steering system, vehicle and steering control method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101646385B1 (en) * | 2014-11-24 | 2016-08-12 | 현대자동차주식회사 | Electronic active rear wheel steering system and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178972A (en) * | 1981-04-30 | 1982-11-04 | Nissan Motor Co Ltd | Vehicle speed responsing type power steering |
| JPS5945266A (en) * | 1982-09-03 | 1984-03-14 | Nissan Motor Co Ltd | Power steering mechanism |
| JPS59128054A (en) * | 1983-01-13 | 1984-07-24 | Mazda Motor Corp | Four-wheel steering gear of vehicle |
-
1985
- 1985-01-31 JP JP60016827A patent/JPH0757611B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178972A (en) * | 1981-04-30 | 1982-11-04 | Nissan Motor Co Ltd | Vehicle speed responsing type power steering |
| JPS5945266A (en) * | 1982-09-03 | 1984-03-14 | Nissan Motor Co Ltd | Power steering mechanism |
| JPS59128054A (en) * | 1983-01-13 | 1984-07-24 | Mazda Motor Corp | Four-wheel steering gear of vehicle |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61257361A (en) * | 1985-05-07 | 1986-11-14 | Nippon Denso Co Ltd | Vehicle steering device |
| JPS62146775A (en) * | 1985-12-20 | 1987-06-30 | Mazda Motor Corp | Four-wheel steering device for vehicle |
| JPH069972B2 (en) * | 1986-12-26 | 1994-02-09 | 日本精工株式会社 | Motor drive type power steering control device |
| JPS63162369A (en) * | 1986-12-26 | 1988-07-05 | Nippon Seiko Kk | Motor driven type power steering control device |
| EP0289039A2 (en) * | 1987-05-01 | 1988-11-02 | Mazda Motor Corporation | Four-wheel steering system for motor vehicle |
| US4953652A (en) * | 1987-05-01 | 1990-09-04 | Mazda Motor Corporation | Four-wheel steering system for motor vehicle |
| JPH01109480U (en) * | 1988-01-20 | 1989-07-24 | ||
| US5014801A (en) * | 1988-02-10 | 1991-05-14 | Fuji Jukogyo Kabushiki Kaisha | Method and device for rear-wheel steering of automotive vehicle |
| US4953650A (en) * | 1988-03-14 | 1990-09-04 | Mazda Motor Company | Rear wheel steering control system |
| US5068584A (en) * | 1988-11-29 | 1991-11-26 | Regie Nationale Des Usines Renault | Auxiliary device for handling failures of an actuating system of a linear electric actuator |
| EP0398182A2 (en) * | 1989-05-18 | 1990-11-22 | Nissan Motor Co., Ltd. | Auxiliary steering control apparatus |
| US5054568A (en) * | 1989-05-18 | 1991-10-08 | Nissan Motor Co., Ltd. | Auxiliary steering control apparatus |
| DE4017694A1 (en) * | 1989-06-06 | 1990-12-13 | Fuji Heavy Ind Ltd | Steering control for all-wheel drive vehicle - has speed sensors on both axles and corrected steering when speed differs on axles |
| EP1281972A2 (en) * | 2001-08-01 | 2003-02-05 | Delphi Technologies, Inc. | Vehicle speed diagnostic algorithm for four-wheel steering systems |
| EP1281972A3 (en) * | 2001-08-01 | 2003-09-03 | Delphi Technologies, Inc. | Vehicle speed diagnostic algorithm for four-wheel steering systems |
| US6701237B2 (en) | 2001-08-01 | 2004-03-02 | Delphi Technologies, Inc. | Vehicle speed diagnostic algorithm for four-wheel steering systems |
| CN115703501A (en) * | 2021-08-11 | 2023-02-17 | 比亚迪股份有限公司 | Steering system, vehicle and steering control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0757611B2 (en) | 1995-06-21 |
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