JPH056061B2 - - Google Patents
Info
- Publication number
- JPH056061B2 JPH056061B2 JP21746785A JP21746785A JPH056061B2 JP H056061 B2 JPH056061 B2 JP H056061B2 JP 21746785 A JP21746785 A JP 21746785A JP 21746785 A JP21746785 A JP 21746785A JP H056061 B2 JPH056061 B2 JP H056061B2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- stroke sensor
- shift
- automatic transmission
- ratio
- 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 - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H2059/6807—Status of gear-change operation, e.g. clutch fully engaged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、車両用自動変速機におけるギヤのシ
フト量を検出するギヤストロークセンサの故障時
のバツクアツプ装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a backup device when a gear stroke sensor that detects a gear shift amount in a vehicle automatic transmission fails.
（従来技術と問題点）
車両用自動変速装置において、ギヤのシフト量
を検出するギヤストロークセンサが設けられてお
り、ギヤストロークセンサから得られるシフト量
の信号が電子制御装置に入力され、学習に用いら
れたり、シフトを行なう等各種制御に用いられ
る。しかしながら、ギヤストロークセンサが断線
又はシヨートして故障した場合、前述の制御が不
可能となる。特にシフト不能は車両の運転にとつ
て重大な支障となる。(Prior art and problems) Automatic transmissions for vehicles are equipped with a gear stroke sensor that detects the amount of gear shift, and the signal of the amount of shift obtained from the gear stroke sensor is input to the electronic control device and used for learning. It is also used for various controls such as shifting. However, if the gear stroke sensor breaks down due to disconnection or firing, the above-mentioned control becomes impossible. In particular, the inability to shift is a serious hindrance to driving a vehicle.
（発明の目的）
本発明はかかる従来の問題点に着目してなされ
たものであり、ギヤストロークセンサが故障した
場合、その故障を検出し、一方シフトアクチユエ
ータをバルブで制御して、その結果をニユートラ
スイツチのオンオフ状態、また車速とインプツト
シヤフトの回転数の比でギヤ比を算出することに
より、ギヤ抜き制御またはギヤ入り制御がなされ
たか否かを判定することによりギヤストロークセ
ンサの故障をバツクアツプする装置を提供するこ
とを目的とする。(Object of the Invention) The present invention has been made by focusing on such conventional problems. When a gear stroke sensor malfunctions, it detects the malfunction and controls the shift actuator with a valve. By calculating the gear ratio based on the on/off state of the neutral switch and the ratio of the vehicle speed and input shaft rotation speed, the gear stroke sensor can be used to determine whether gear disengagement control or gear engagement control has been performed. The purpose is to provide a device for backing up failures.
（発明の概要）
そしてこの目的達成のために、本発明は、ギヤ
シフト量を検出するギヤストロークセンサにより
シフト位置を制御する電子制御装置を備えた自動
変速機において、ギヤ抜き・入り動作中にギヤス
トロークセンサの異常を判別する手段と、ギヤ入
り動作中には、強制的に該動作を続行した後、車
速とインプツトシヤフトの回転数の比を検知して
ギヤ入り動作が適正か否かを判断する手段と、ギ
ヤ抜き動作中には、ギヤをニユートラル位置に強
制的に移行する手段とを有する車両用自動変速機
のギヤストロークセンサのバツクアツプ装置を提
供するものである。」と補正する。(Summary of the Invention) To achieve this object, the present invention provides an automatic transmission equipped with an electronic control device that controls the shift position using a gear stroke sensor that detects the amount of gear shift. There is a means for determining whether the stroke sensor is abnormal or not, and a means for forcibly continuing the operation during the gear-shifting operation, and then detecting the ratio of the vehicle speed and the rotational speed of the input shaft to determine whether the gear-engaging operation is appropriate. The present invention provides a backup device for a gear stroke sensor of an automatic transmission for a vehicle, which has means for making a determination and means for forcibly shifting a gear to a neutral position during a gear disengaging operation. ” he corrected.
（実施例）
次に、添付図面を参照して本発明について詳細
に説明する。(Example) Next, the present invention will be described in detail with reference to the accompanying drawings.
第１図は、本発明の装置の実施に利用される車
両自動変速機の一部を示す。同図において、１は
シフトアクチユエータであり、３位置に停止でき
る構成となつている。これは段付シリンダ１ａ
と、第１のピストン１ｂと、この第１のピストン
１ｂに嵌合する筒状の第２のピストン１ｃとから
なり、第１のピストン１ｂのピストンロツド１ｄ
の端には、図示しない変速機のシフトレバーが取
付けられている。ピストンロツド１ｄは段付シリ
ンダ１ａの両油室１ｆ，１ｇに油圧が作用する中
立状態にあり、油室１ｇに油圧が作用すると、第
１のピストン１ｂは第２のピストン１ｃを伴つて
左方に移動し、図ではギヤ段Ｒ，２，４，６速側
にソフトされることになる。油室１ｆに油圧が作
用すると、第１のピストン１ｂのみが右方に移動
する。図では、ギヤ段１，３，５速側にシフトさ
れることになる。 FIG. 1 shows a portion of a vehicle automatic transmission utilized in implementing the apparatus of the present invention. In the figure, 1 is a shift actuator, which is configured to be able to stop at three positions. This is stepped cylinder 1a
, a first piston 1b, and a cylindrical second piston 1c that fits into the first piston 1b, and a piston rod 1d of the first piston 1b.
A shift lever of a transmission (not shown) is attached to the end of the gearbox. The piston rod 1d is in a neutral state where oil pressure acts on both oil chambers 1f and 1g of the stepped cylinder 1a, and when oil pressure acts on the oil chamber 1g, the first piston 1b moves to the left together with the second piston 1c. As shown in the figure, the gears are shifted to R, 2nd, 4th, and 6th gears. When oil pressure acts on the oil chamber 1f, only the first piston 1b moves to the right. In the figure, the gears are shifted to 1st, 3rd, and 5th gears.
V1，V2は、アクチユエータの油室１ｇ，１ｆ
を油圧源４又はタンク５に通ずるマグネチツクバ
ルブである。６はピストンロツド１ｄのストロー
ク位置を検出するストロークセンサであり、ポテ
ンシヨメータによつて構成されている。本実施例
では、ポテンシヨメータの両端の電圧は、5.5V
及び0Vであり、正常のニユートラル位置で約
2.50V、シフトイン位置で約4.5V，0.5Vの出力電
圧を示す。７は、電子制御装置で、この電子制御
装置は図示のストロークセンサ６の出力や図示し
ないエンジン回転速度、車速、セレクトレバー等
の各種信号にもとづいて、上記シフト用マグネチ
ツクバルブV1，V2を選択的に作動してシフトア
クチユエータを移動させる。 V 1 and V 2 are actuator oil chambers 1g and 1f.
This is a magnetic valve that communicates with the hydraulic power source 4 or tank 5. A stroke sensor 6 detects the stroke position of the piston rod 1d, and is composed of a potentiometer. In this example, the voltage across the potentiometer is 5.5V
and 0V, approximately at the normal neutral position.
It shows an output voltage of 2.50V, approximately 4.5V at the shift-in position, and 0.5V. Reference numeral 7 denotes an electronic control device, which controls the shift magnetic valves V 1 and V 2 based on the output of the illustrated stroke sensor 6 and various signals such as engine speed, vehicle speed, and select lever (not illustrated ). is selectively actuated to move the shift actuator.
次に、車両用自動変速機の動作を第２図のフロ
ーチヤートにしたがつて説明する。 Next, the operation of the automatic transmission for a vehicle will be explained according to the flowchart shown in FIG.
シフト命令がでた場合、最初にストロークセン
サ（ギヤシフトポテンシヨメータ）のADを読込
み（ステツプａ）、ストロークセンサのADが
0.1V以下か否か、4.8V以上か否かを判定する
（ステツプｂ，ｃ）。ストロークセンサADが0.1V
と4.8Vの間にある時は正常と判断し、これらの
範囲外にあるときは異常と判断する。 When a shift command is issued, the AD of the stroke sensor (gear shift potentiometer) is first read (step a), and the AD of the stroke sensor is
It is determined whether the voltage is below 0.1V or above 4.8V (steps b and c). Stroke sensor AD is 0.1V
When the voltage is between 4.8V and 4.8V, it is considered normal, and when it is outside these ranges, it is judged as abnormal.
次に、ギヤシフト命令がギヤ抜き制御か否かを
判定し（ステツプｄ）、ギヤ抜き制御の場合には
バルブV1，V2を作動してギヤ抜き制御を行い
（ステツプｅ）、ギヤ抜き開始後の時間を判定する
（ステツプｆ）。ギヤ抜き開始後設定時間以上経過
したとき、ニユートラルスイツチがオンかオフか
を判定し（ステツプｇ）、オンの場合シフトアク
チユエータによりギヤ抜きが行なわれてニユート
ラルになつたものとみなす（ステツプｈ）。 Next, it is determined whether the gear shift command is for gear release control (step d), and if it is gear release control, gear release control is performed by operating valves V 1 and V 2 (step e), and gear release is started. The next time is determined (step f). When a set time has elapsed after the start of gear removal, it is determined whether the neutral switch is on or off (step g), and if it is on, it is assumed that the gear has been removed by the shift actuator and the gear is in neutral (step g). h).
一方、前述のステツプｄにおいてギヤ抜き制御
でないと判断されたときは、ギヤ入り制御か否か
が判定される（ステツプｉ）。ギヤ入り制御の場
合、シフト点の学習が禁止される（ステツプｊ）。
すなわち、異常値が学習のための値に用いられる
ことを禁止する。そして、シフトする方向に基づ
いてバルブV1またはV2のいずれか一方のバルブ
を作動してギヤ入り制御を行ない（ステツプｋ）、
ギヤシフト開始後の時間を判定する（ステツプ
ｌ）。ギヤシフト開始後設定時間以上経過したと
き、ニユートラルスイツチがオンかオフかを判定
し（ステツプｍ）、オフの場合、車速とインプツ
トシヤフトの回転数の比でギヤ比を算出し（ステ
ツプｎ）、この算出したギヤ比がギヤシフト後の
ギヤ比であるか否かを判定し、すなわち両ギヤ比
が一致しているか否かを判定し（ステツプｏ）、
一致している場合ギヤシフトがなされたものとみ
なす（ステツプｐ）。 On the other hand, if it is determined in the above-mentioned step d that the control is not out of gear, it is determined whether or not the control is in gear (step i). In the case of gear shift control, learning of the shift point is prohibited (step j).
In other words, abnormal values are prohibited from being used as values for learning. Then, based on the direction of shift, one of the valves V 1 and V 2 is operated to perform gear entry control (step k);
The time after the start of the gear shift is determined (step 1). When a set time has elapsed after the start of the gear shift, it is determined whether the neutral switch is on or off (step m), and if it is off, the gear ratio is calculated from the ratio of the vehicle speed and the input shaft rotation speed (step n). , determine whether the calculated gear ratio is the gear ratio after the gear shift, that is, determine whether the two gear ratios match (step o);
If they match, it is assumed that a gear shift has been made (step p).
このようにして、ストロークセンサが故障した
場合でもギヤ抜き制御、またギヤ入り制御を行な
い得るように構成したものである。 In this way, even if the stroke sensor fails, the gear release control and gear entry control can be performed.
（発明の効果）
以上説明したように、本発明によれば、シフト
アクチユエータのギヤストロークセンサが故障し
て電圧値が所定の範囲外になつた場合でも、ニユ
ートラルスイツチのオン、オフ状態を判別し、ま
たは車速とインプツトシヤフトの回転数の比でギ
ヤ比を算出し、ギヤシフト後のギヤ比と比較する
ことのより、故障をバツクアツプし、ギヤ抜き制
御及びギヤ入り制御を行なうことができるもので
ある。(Effects of the Invention) As explained above, according to the present invention, even if the gear stroke sensor of the shift actuator fails and the voltage value falls outside the predetermined range, the on/off state of the neutral switch can be adjusted. By determining the gear ratio or calculating the gear ratio from the ratio of the vehicle speed and input shaft rotation speed and comparing it with the gear ratio after gear shift, it is possible to back up the failure and perform gear removal control and gear entry control. It is possible.
またストロークセンサの異常値を検出した場合
には、異常値を学習値に用いないようにするもの
である。 Further, when an abnormal value of the stroke sensor is detected, the abnormal value is not used as a learning value.
第１図は、秘本発明の装置の実施に利用される
自動変速機の一部を示す図である。第２図は、本
発明の装置の一実施例を示すフローチヤートであ
る。
１……シフトアクチユエータ、V1，V2……マ
グネチツクバルブ、４……油圧源、５……タン
ク、６……ギヤストロークセンサ、７……電子制
御装置。
FIG. 1 is a diagram showing a portion of an automatic transmission used to implement the apparatus of the present invention. FIG. 2 is a flowchart showing one embodiment of the apparatus of the present invention. 1...Shift actuator, V1 , V2 ...Magnetic valve, 4...Hydraulic power source, 5...Tank, 6...Gear stroke sensor, 7...Electronic control device.
Claims (1)
サによりシフト位置を制御する電子制御装置を備
えた自動変速機において、 ギヤ抜き・入り動作中にギヤストロークセンサ
の異常を判別する手段と、 ギヤ入り動作中には、強制的に該動作を続行し
た後、車速とインプツトシヤフトの回転数の比を
検知してギヤ入り動作が適正か否かを判断する手
段と、 ギヤ抜き動作中には、ギヤをニユートラル位置
に強制的に移行する手段とを有することを特徴と
する車両用自動変速機のギヤストロークセンサの
バツクアツプ装置。[Scope of Claims] 1. In an automatic transmission equipped with an electronic control device that controls a shift position using a gear stroke sensor that detects a gear shift amount, there is provided a means for determining an abnormality in a gear stroke sensor during a gear disengagement/engagement operation; A means for forcibly continuing the operation during the gear-engaging operation, and then detecting a ratio between the vehicle speed and the rotational speed of the input shaft to determine whether the gear-engaging operation is appropriate; 1. A backup device for a gear stroke sensor of an automatic transmission for a vehicle, comprising means for forcibly shifting a gear to a neutral position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21746785A JPS6280346A (en) | 1985-09-30 | 1985-09-30 | Back-up apparatus for gear stroke sensor of automatic transmission for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21746785A JPS6280346A (en) | 1985-09-30 | 1985-09-30 | Back-up apparatus for gear stroke sensor of automatic transmission for car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6280346A JPS6280346A (en) | 1987-04-13 |
| JPH056061B2 true JPH056061B2 (en) | 1993-01-25 |
Family
ID=16704686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21746785A Granted JPS6280346A (en) | 1985-09-30 | 1985-09-30 | Back-up apparatus for gear stroke sensor of automatic transmission for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6280346A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2834034B1 (en) * | 2001-12-20 | 2005-04-22 | Renault | METHOD FOR CONTROLLING AUTOMATED REPORTING STAGE TRANSMISSION |
-
1985
- 1985-09-30 JP JP21746785A patent/JPS6280346A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6280346A (en) | 1987-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |