JPH0659797B2 - Hydraulic clutch device for traveling of work vehicle - Google Patents
Hydraulic clutch device for traveling of work vehicleInfo
- Publication number
- JPH0659797B2 JPH0659797B2 JP62313657A JP31365787A JPH0659797B2 JP H0659797 B2 JPH0659797 B2 JP H0659797B2 JP 62313657 A JP62313657 A JP 62313657A JP 31365787 A JP31365787 A JP 31365787A JP H0659797 B2 JPH0659797 B2 JP H0659797B2
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- hydraulic
- hydraulic clutch
- acceleration
- traveling
- 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
Landscapes
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、作業車の走行用油圧クラッチ装置に関し、詳
しくは、摩擦型に構成された油圧クラッチを入り操作す
る際のショックを低減するための技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic clutch device for traveling of a work vehicle, and more specifically, to reduce a shock when a friction type hydraulic clutch is engaged and operated. Of technology.
従来、上記の如く油圧クラッチの入り操作時におけるシ
ョックを低減するための技術としては、特開昭62-23184
1号公報に示されるものが存在し、この引例では、油圧
クラッチを入り方向に作動させている状態における走行
系の加速度に基づいて、油圧クラッチに供給される作動
油の圧力を調節することで、入り操作を緩慢に行うこと
無く、しかも、ショックを発生せずクラッチの操作を行
うよう構成されている。Conventionally, as a technique for reducing the shock at the time of engaging and disengaging the hydraulic clutch as described above, Japanese Patent Laid-Open No. 62-23184
There is one disclosed in Japanese Patent No. 1 publication, and in this reference, the pressure of the hydraulic oil supplied to the hydraulic clutch is adjusted based on the acceleration of the traveling system in the state where the hydraulic clutch is operated in the engaging direction. , The clutch is operated without causing a slow on / off operation and without causing a shock.
又、摩擦式油圧クラッチの入り操作時には、圧油の供給
開始から摩擦板が接触を開始して半クラッチ状態に達す
るまでは迅速な圧油供給を必要とし、半クラッチ状態に
達した後には、この半クラッチ状態を適当な時間継続さ
せ乍ら徐々に加速することを必要とする。Further, during the operation of engaging the friction hydraulic clutch, rapid pressure oil supply is required from the start of the pressure oil supply to the contact of the friction plate to reach the half-clutch state, and after reaching the half-clutch state, It is necessary to continue this half-clutch state for an appropriate time and gradually accelerate.
尚、前記引例の構成のものでも、半クラッチ状態の継続
は可能であるが、半クラッチ状態での増速時にも、加速
度センサからの検出信号がフィードバックしているた
め、例えば、車体を不整地で走行させている状態のよう
に、車体の前後姿勢の変動が加速度センサに作用する場
合には、センサからの信号に従って、調圧作動が行われ
る結果、クラッチに対する作動油圧を脈動させたり、ク
ラッチの入り状態に達する時間を延長させることもあ
り、改善の余地がある。Even with the structure of the above-mentioned reference, it is possible to continue the half-clutch state, but since the detection signal from the acceleration sensor is fed back even during acceleration in the half-clutch state, for example, the vehicle body is rough. When a change in the front-rear posture of the vehicle body acts on the acceleration sensor, such as when the vehicle is running at There is room for improvement as it may extend the time it takes to get into
本発明の目的は、どのような状況下で車体を走行させて
いても、迅速に半クラッチ状態に設定し、かつ、この半
クラッチ状態を適当な時間だけ継続させることで、ショ
ックを発生させず、しかも、緩慢になること無く、油圧
クラッチを入り操作する装置を構成する点にある。An object of the present invention is to prevent a shock by setting the half-clutch state quickly and continuing the half-clutch state for an appropriate time, regardless of the circumstances under which the vehicle body is traveling. Moreover, the point is to configure a device for engaging and operating the hydraulic clutch without slowing down.
本発明の特徴は、走行系に介装された摩擦型の油圧クラ
ッチ、この油圧クラッチに対する作動油の供給圧を調節
する弁機構、車体の加速度を検出する計測手段夫々を設
けると共に、油圧クラッチに対する作動油の供給時にお
ける車体の増速方向への加速度を計測手段からの検出信
号に基づいて求め、この加速度の値が所定の値に達する
と、油圧クラッチに対する作動油の供給圧を、この所定
の値に達したタイミングでの供給圧に維持すべく弁機構
の動作を調節する制御手段を設けて成る点にあり、その
作用、及び、効果は次の通りである。The features of the present invention are that a friction type hydraulic clutch interposed in the traveling system, a valve mechanism for adjusting the supply pressure of hydraulic oil to the hydraulic clutch, and a measuring means for detecting the acceleration of the vehicle body are provided, and the hydraulic clutch is provided. The acceleration of the vehicle body in the acceleration direction at the time of supplying the hydraulic oil is obtained based on the detection signal from the measuring means. When the value of this acceleration reaches a predetermined value, the supply pressure of the hydraulic oil to the hydraulic clutch is set to the predetermined value. The control means is provided for adjusting the operation of the valve mechanism so as to maintain the supply pressure at the timing when the value of is reached. The operation and effect are as follows.
上記特徴によると、油圧クラッチの入り操作時には、作
動油の供給による車体の増速方向への加速度が計測手段
で計測されると共に、この加速度の値が所定の値に達す
ると制御手段が弁機構を操作して、この所定圧に達した
タイミングにおける作動油の圧力を維持するものとな
る。According to the above feature, when the hydraulic clutch is engaged, the acceleration of the vehicle body in the acceleration direction due to the supply of the hydraulic oil is measured by the measuring means, and when the acceleration reaches a predetermined value, the control means causes the valve mechanism to operate. Is operated to maintain the pressure of the hydraulic oil at the timing when the predetermined pressure is reached.
つまり、本発明では、油圧クラッチに作動油を供給して
車体が走行を開始し、この走行開始時の加速度が所定値
に達するまでは供給圧を比較的迅速に増大できると共
に、作動油の供給圧の増大で車体が走行を開始した際に
は油圧クラッチが半クラッチ状態にあり、この走行開始
時において車体の加速度の値が所定値まで増大したタイ
ミングでの供給圧を維持することで、半クラッチ状態を
維持したままでの加速を可能にし、しかも、このように
加速度が一旦の所定の値に達した後に、油圧クラッチに
対する供給圧を維持するので計測手段で計測される値が
変動しても、この変動の影響を受けずに半クラッチ状態
を継続させ乍ら加速を行えるものとなる。That is, according to the present invention, the hydraulic oil is supplied to the hydraulic clutch to start traveling of the vehicle body, and the supply pressure can be increased relatively quickly until the acceleration at the start of traveling reaches a predetermined value. The hydraulic clutch is in a half-clutch state when the vehicle body starts traveling due to the increase in pressure, and by maintaining the supply pressure at the timing when the acceleration value of the vehicle body increases to a predetermined value at the start of traveling, Acceleration is possible while maintaining the clutch state, and since the supply pressure to the hydraulic clutch is maintained after the acceleration once reaches a predetermined value in this way, the value measured by the measuring means fluctuates. Also, it is possible to continue the half-clutch state and accelerate without being affected by this fluctuation.
このことは、例えば、加速度を所定の特性に維持するよ
う作動油の供給圧の調節を行うものと比較すると、不整
地で走行させたように、計測手段からの計測結果が変動
する場合にも、供給圧を不必要に増減させて油圧クラッ
チが入り状態に達するまでの時間を大きくする、あるい
は、供給圧を急激に変化させて油圧クラッチの入り操作
時のショックを発生させる等の不都合を発生させること
が無い。This means, for example, even when the measurement result from the measuring means fluctuates as if the vehicle was traveling on an uneven terrain, as compared with the case where the hydraulic oil supply pressure is adjusted so as to maintain the acceleration at a predetermined characteristic. , Increasing the supply pressure unnecessarily to increase the time until the hydraulic clutch reaches the engaged state, or abruptly changing the supply pressure to cause a shock when the hydraulic clutch is engaged. There is nothing to do.
従って、車体の走行開始時には油圧クラッチが迅速に半
クラッチ状態に達し得るものであり、しかも、半クラッ
チ状態では外乱の影響を受けないので、地面がどのよう
な状態でも走行開始時の油圧クラッチの入り操作を緩慢
に行わせず、油圧クラッチが入り状態に達した際にもシ
ョックを発生させ難い装置が合理的に構成されたのであ
る。Therefore, the hydraulic clutch can quickly reach the half-clutch state when the vehicle body starts to travel, and since the disturbance is not affected in the half-clutch state, the hydraulic clutch at the start of running does not affect the ground clutch in any state. The device was reasonably configured so that a shock is not generated when the hydraulic clutch reaches the engaged state without performing the engaging operation slowly.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第２図に示すように、エンジン(1)からの動力が伝えら
れる走行クラッチ(2)、及び、外部クラッチ(3)夫々が設
けられ、走行クラッチ(2)からの動力は走行系に対する
筒状の入力軸(4)に伝えられ、又、外部クラッチ(3)から
の動力は外部動力軸(5)を駆動するための前記入力軸(4)
に内嵌する伝動軸(6)に伝えられる。As shown in FIG. 2, a traveling clutch (2) to which the power from the engine (1) is transmitted and an external clutch (3) are respectively provided, and the power from the traveling clutch (2) is tubular to the traveling system. The power from the external clutch (3) is transmitted to the input shaft (4) of the input shaft (4) for driving the external power shaft (5).
It is transmitted to the transmission shaft (6) that fits inside.
同図に示すように、前記入力軸(4)にはキー(7)を介して
クラッチケース(8)が外嵌固定されると共に、出力ギヤ
(9)が遊転状態で外嵌され、又、入力軸(4)と同軸芯に配
設された筒状の中間軸(10)には入力ギヤ(11)が外嵌固定
されている。As shown in the figure, a clutch case (8) is externally fitted and fixed to the input shaft (4) via a key (7), and an output gear
(9) is externally fitted in a free rotation state, and an input gear (11) is externally fitted and fixed to a cylindrical intermediate shaft (10) arranged coaxially with the input shaft (4).
又、出力ギヤ(9)と入力ギヤ(11)との間にはアイドルギ
ヤ(12)及び２つのギヤ(13),(14)で成る後進用のギヤ伝
動系が形成され、前記クラッチケース(8)には入力軸(4)
からの動力を出力ギヤ(9)に伝える第１油圧クラッチ
(C1)と、入力軸(4)からの動力を直接入力ギヤ(11)に伝
える第２油圧クラッチ(C2)とが収められ、第１、第２油
圧クラッチ(C1),(C2)とも多数の摩擦板(15)…，(16)…
及び油圧ピストン(17),(18)を備えて構成され、夫々の
油圧クラッチ(C1),(C2)とも圧油の供給によって伝動状
態に設定できるようになっている。Further, between the output gear (9) and the input gear (11), a reverse gear transmission system including an idle gear (12) and two gears (13) and (14) is formed, and the clutch case ( Input shaft (4) on 8)
Hydraulic clutch that transfers power from the gear to the output gear (9)
(C 1 ) and the second hydraulic clutch (C 2 ) that directly transmits the power from the input shaft (4) to the input gear (11) are housed, and the first and second hydraulic clutches (C 1 ), (C 2 ) Many friction plates (15)…, (16)…
And hydraulic pistons (17) and (18), and the hydraulic clutches (C 1 ) and (C 2 ) can be set to a transmission state by supplying pressure oil.
因みに、前記中間軸(10)からの動力は変速装置(19)を介
して車輪(20)に伝えられるよう伝動系が形成されてい
る。又、この伝動系は農用トラクタに備えられるよう構
成され、この走行用の変速系では、前記第１、第２油圧
クラッチ(C1),(C2)の動作による変速時にできるだけシ
ョックを発生させないよう第１、第２油圧クラッチ
(C1),(C2)に対する作動油の圧力を制御する系が備えら
れている。Incidentally, a transmission system is formed so that the power from the intermediate shaft (10) is transmitted to the wheels (20) via the transmission (19). Further, this transmission system is configured to be provided in an agricultural tractor, and in this traveling speed change system, shock is not generated as much as possible during the speed change by the operation of the first and second hydraulic clutches (C 1 ) and (C 2 ). First and second hydraulic clutch
A system for controlling the pressure of the hydraulic oil with respect to (C 1 ) and (C 2 ) is provided.
つまり、第１図に示すように油圧ポンプ(21)からの圧油
は前後進切換用の弁(22)に送られ、この弁(22)から第
１、第２油圧クラッチ(C1),(C2)夫々に圧油を送る油路
(23),(24)には夫々電磁比例減圧弁(V1),(V2)が介装さ
れ、又、これら２つの電磁比例減圧弁(V1),(V2)（弁機
構の一例）はマイクロプロセッサ（図示せず）を内装し
て成る制御装置(25)からの操作信号で制御され、制御装
置(25)には前記弁(22)の操作位置を検出する切換スイッ
チ(26)及び前記車輪(20)の回転から走行系の加速度を検
出するセンサ(S)（計測手段の一例）からの信号が入力
するよう制御系が形成され、この制御装置(25)は第３図
のフローチャートに従って動作するようプログラムが設
定されると共に、このプログラムには、いずれか一方の
油圧クラッチの入り操作に伴い所定の率でクラッチ内圧
を上昇させ、かつ、この油圧クラッチで伝動の開始を生
じた時点以後、前記上昇率より低い上昇率でクラッチ内
圧を上昇させる制御手段(T)が形成され、以下にフロー
チャートに基づいて制御装置(25)の動作を説明する。That is, as shown in FIG. 1, the hydraulic fluid from the hydraulic pump (21) is sent to the valve (22) for forward / reverse switching, and from this valve (22), the first and second hydraulic clutches (C 1 ), (C 2 ) Oil passage for sending pressure oil to each
Electromagnetic proportional pressure reducing valves (V 1 ) and (V 2 ) are installed in (23) and (24) respectively, and these two electromagnetic proportional pressure reducing valves (V 1 ) and (V 2 ) (of the valve mechanism One example) is controlled by an operation signal from a control device (25) including a microprocessor (not shown), and the control device (25) has a changeover switch (26) for detecting the operation position of the valve (22). ) And a signal from a sensor (S) (an example of measuring means) for detecting the acceleration of the traveling system from the rotation of the wheel (20), and the control system is formed as shown in FIG. The program is set to operate in accordance with the flowchart in Fig. 2, and this program causes the clutch internal pressure to rise at a predetermined rate in accordance with the engagement operation of one of the hydraulic clutches, and this hydraulic clutch causes the start of transmission. After that time, the control means (T) for increasing the clutch internal pressure at a rate lower than the rate of increase is formed. The operation of the control unit (25) will be described with reference to the flow chart below.
即ち、切換スイッチ(26)からの信号に基づいて弁(22)の
操作を検出すると（♯１，♯２ステップ）、第４図(イ)
のグラフに示す如く、圧油供給側の前記電磁比例減圧弁
に電流値(Imax)の操作信号を時間(T1)だけ供給し（♯３
ステップ）、次に、この操作信号の電流値を(Imin)まで
降下させる（♯４ステップ）。That is, when the operation of the valve (22) is detected based on the signal from the changeover switch (26) (steps # 1 and # 2), FIG.
As shown in the graph of Figure 3, the operation signal of the current value (Imax) is supplied to the electromagnetic proportional pressure reducing valve on the pressure oil supply side for the time (T 1 ) (# 3
Next, the current value of this operation signal is decreased to (Imin) (# 4 step).
因みに、前記電磁比例減圧弁(V1),(V2)は供給される電
流値の増減に対応させて作動油の供給圧を増減するよう
構成され、前述のように操作信号の値を時間(T1)だけ大
きく設定する理由は、油圧クラッチの摩擦板の間隔を予
め狭めておくことで、油圧クラッチの入り操作に要する
時間を短縮するためである。Incidentally, the solenoid proportional pressure reducing valves (V 1 ) and (V 2 ) are configured to increase and decrease the supply pressure of the hydraulic oil in response to the increase and decrease of the supplied current value. The reason why the value is increased by (T 1 ) is that the time required for the engagement operation of the hydraulic clutch is shortened by narrowing the gap between the friction plates of the hydraulic clutch in advance.
この後に、所定の率で操作信号の電流値を増大し（♯５
ステップ）、前記センサ(S)からの信号に基づき加速度
の値（β）を入力し（♯６ステップ）、かつ、所定値
（α）とこの加速度の値（β）とを比較することで（♯
７、♯８ステップ）、油圧クラッチが半クラッチ状態に
達して車速の増速が開始されたかどうかを判別する。After this, the current value of the operation signal is increased at a predetermined rate (# 5
By inputting the acceleration value (β) based on the signal from the sensor (S) (# 6 step), and comparing the predetermined value (α) with the acceleration value (β) ( #
7, step # 8), it is determined whether the hydraulic clutch has reached the half-clutch state and the vehicle speed has started to increase.
又、♯７、♯８ステップで車速の増速を認めると、操作
信号の増大を停止して（♯９ステップ）、半クラッチの
状態を継続し乍ら、タイマに設定した時間だけ増速を行
い（♯10、♯11ステップ）、最後に操作信号の電流値を
(Imax)まで所定の率で増大させることで完全な入り状態
に設定するのである（♯12ステップ）。When the vehicle speed increase is recognized in steps # 7 and # 8, the increase of the operation signal is stopped (step # 9), the half clutch state is continued, and the speed is increased for the time set in the timer. Perform (# 10, # 11 steps) and finally set the current value of the operation signal.
It is set to the complete entry state by increasing it up to (Imax) at a predetermined rate (# 12 step).
尚、このように、タイマに設定した時間だけに限って増
速を行う理由は、坂道において登る方向に発進した場合
に、車体が自重で降下した場合でも前記センサ(S)が加
速度を検出する結果、油圧クラッチに対する作動油の供
給量が制限されることもあり、このように制限される時
間を長引かせないためである。Incidentally, the reason for increasing the speed only for the time set in the timer is that the sensor (S) detects the acceleration even when the vehicle body descends under its own weight when the vehicle starts in a climbing direction on a slope. As a result, the amount of hydraulic oil supplied to the hydraulic clutch may be limited, and the time limited in this way cannot be prolonged.
そして、♯３ステップから♯12ステップまでの動作を操
作信号の電流値、車体速度、車体加速度夫々を基準にグ
ラフに表すと第４図(イ),(ロ)、(ハ)の如く描かれ、更に、
♯６〜♯９ステップを制御手段(T)と称する。When the operations from # 3 step to # 12 step are represented in the graph based on the current value of the operation signal, the vehicle body speed, and the vehicle body acceleration, they are drawn as shown in FIGS. 4 (a), (b), and (c). , In addition,
Steps # 6 to # 9 are referred to as control means (T).
又、前記センサ(S)は車輪(20)の駆動軸(20a)に取付けた
ギヤ(27)の回転をピックアップ型のコイル(28)で検出す
るよう構成されている。The sensor (S) is configured to detect the rotation of the gear (27) attached to the drive shaft (20a) of the wheel (20) by the pickup type coil (28).
本発明は上記実施例以外に例えば、多段に構成した変速
系に適用して良く、又、運搬車に備えても良く、又、制
御手段はコンパレータ、論理ゲート等を組合わせてハー
ド的に構成しても良い。The present invention may be applied to, for example, a multi-stage speed change system other than the above-described embodiment, or may be provided in a transport vehicle, and the control means is configured by hardware by combining a comparator, a logic gate and the like. You may.
又、計測手段(S)を光センサ型、発電型に構成する等、
様々の形態で実施できる。Also, the measuring means (S) is configured as an optical sensor type, a power generation type, etc.
It can be implemented in various forms.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.
図面は本発明に係る作業車の走行用油圧クラッチ装置の
実施例を示し、第１図は該装置の制御系のブロック図、
第２図は伝動系の概略図、第３図は制御装置の動作を表
すフローチャート、第４図(イ)は走行開始時における電
磁比例減圧弁に対する制御信号のグラフ、第４図(ロ)は
走行開始時における車体速度を表すグラフ、第４図(ハ)
は走行開始時における車体の加速度を表すグラフであ
る。 (C)……油圧クラッチ、(S)……計測手段、(T)……制御
手段、(V)……弁機構。The drawings show an embodiment of a hydraulic clutch device for traveling of a work vehicle according to the present invention, and FIG. 1 is a block diagram of a control system of the device,
FIG. 2 is a schematic diagram of the transmission system, FIG. 3 is a flowchart showing the operation of the control device, FIG. 4 (a) is a graph of the control signal for the electromagnetic proportional pressure reducing valve at the start of traveling, and FIG. 4 (b) is Graph showing vehicle speed at the start of running, Fig. 4 (C)
Is a graph showing the acceleration of the vehicle body at the start of running. (C) …… hydraulic clutch, (S) …… measuring means, (T) …… control means, (V) …… valve mechanism.
Claims (1)
(C)、この油圧クラッチ(C)に対する作動油の供給圧を調
節する弁機構(V)、車体の加速度を検出する計測手段(S)
夫々を設けると共に、油圧クラッチ(C)に対する作動油
の供給時における車体の増速方向への加速度を計測手段
(S)からの検出信号に基づいて求め、この加速度の値が
所定の値に達すると、油圧クラッチ(C)に対する作動油
の供給圧を、この所定の値に達したタイミングでの供給
圧に維持すべく弁機構(V)の動作を調節する制御手段(T)
を設けて成る作業車の走行用油圧クラッチ装置。1. A friction type hydraulic clutch interposed in a traveling system.
(C), a valve mechanism (V) that adjusts the supply pressure of hydraulic oil to this hydraulic clutch (C), and a measuring means (S) that detects the acceleration of the vehicle body
Each is equipped with a means for measuring the acceleration of the vehicle body in the acceleration direction when hydraulic oil is supplied to the hydraulic clutch (C).
Obtained based on the detection signal from (S), when the value of this acceleration reaches a predetermined value, the supply pressure of the hydraulic oil to the hydraulic clutch (C) becomes the supply pressure at the timing when this predetermined value is reached. Control means (T) to adjust the operation of the valve mechanism (V) to maintain
A hydraulic clutch device for traveling of a work vehicle that is provided with.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62313657A JPH0659797B2 (en) | 1987-12-10 | 1987-12-10 | Hydraulic clutch device for traveling of work vehicle |
| US07/280,690 US4924983A (en) | 1987-12-10 | 1988-12-06 | Propelling clutch apparatus for a working vehicle |
| FR8816258A FR2625953B1 (en) | 1987-12-10 | 1988-12-09 | PROPULSION CLUTCH APPARATUS |
| GB8828776A GB2213550B (en) | 1987-12-10 | 1988-12-09 | Propelling clutch apparatus for a working vehicle |
| ES8803743A ES2012890A6 (en) | 1987-12-10 | 1988-12-09 | Propelling clutch apparatus for a working vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62313657A JPH0659797B2 (en) | 1987-12-10 | 1987-12-10 | Hydraulic clutch device for traveling of work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01153352A JPH01153352A (en) | 1989-06-15 |
| JPH0659797B2 true JPH0659797B2 (en) | 1994-08-10 |
Family
ID=18043947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62313657A Expired - Fee Related JPH0659797B2 (en) | 1987-12-10 | 1987-12-10 | Hydraulic clutch device for traveling of work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659797B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112007001226B4 (en) * | 2006-06-27 | 2016-08-18 | Borgwarner Inc. | Three-position control solenoid for hydraulic actuation |
| JP5915245B2 (en) * | 2012-02-22 | 2016-05-11 | 日産自動車株式会社 | Control device for hybrid vehicle |
| JP7758941B2 (en) * | 2022-01-14 | 2025-10-23 | 日本製鉄株式会社 | Coke oven combustion chamber foreign object crushing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0623028B2 (en) * | 1985-03-05 | 1994-03-30 | 自動車機器株式会社 | Automatic clutch control device |
-
1987
- 1987-12-10 JP JP62313657A patent/JPH0659797B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01153352A (en) | 1989-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |