JPS61274153A - Driving apparatus for transmission - Google Patents
Driving apparatus for transmissionInfo
- Publication number
- JPS61274153A JPS61274153A JP11473985A JP11473985A JPS61274153A JP S61274153 A JPS61274153 A JP S61274153A JP 11473985 A JP11473985 A JP 11473985A JP 11473985 A JP11473985 A JP 11473985A JP S61274153 A JPS61274153 A JP S61274153A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- electromagnetic
- transmission
- pressure cylinder
- cylinder
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、シンクロメツシュ機構を有する自動車用変速
機の歯車を切換える駆動装置に関し、特に、大型自動車
用変速機の駆動装置に利用するに適する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a drive device for switching gears of an automobile transmission having a synchromesh mechanism, and is particularly suitable for use in a drive device of a large automobile transmission. Suitable.
変速機の歯車切換えを遠隔操作により、あるいは自動制
御により行うために、パワーシリンダを用いてパワーシ
フトするものが知られている。従来のパワーシリンダは
、例えば空気圧を利用するものでは、そのシリンダに一
定圧を供給または排出する弁操作により制御するもので
、変速レバーに作用する力はピストンの移動期間にわた
りほぼ一定である。2. Description of the Related Art There is known a power shift system that uses a power cylinder to change the gears of a transmission by remote control or automatic control. Conventional power cylinders, for example those that utilize air pressure, are controlled by valve operations that supply or discharge constant pressure to the cylinder, and the force acting on the gear shift lever is approximately constant over the period of movement of the piston.
一方、変速機にはシンクロメソシュ機構が設けられてい
て、変速レバーを運転者が手操作で行う場合には、シン
クロメツシュが作動するストローク位置では弱い力で変
速レバーを移動させ、歯車が噛み合うストローク位置で
は強い力で変速レバ−を移動させるように操作している
。これを一定の力で操作すると、シンクロメソシュ機構
が円滑に作動せず、いわゆるギア鳴りが発生して下手な
運転になる。これは特に大型車の場合に顕著である。On the other hand, transmissions are equipped with a synchromesh mechanism, and when the driver manually operates the gear shift lever, the shift lever is moved with a weak force at the stroke position where the synchromesh operates, and the gears are moved. At the stroke position where the gears engage, a strong force is applied to move the gear shift lever. If this is operated with a certain amount of force, the synchromesh mechanism will not operate smoothly, causing so-called gear noise and resulting in poor operation. This is especially noticeable in large vehicles.
発明者は、パワーシフトを用いた大型車の自動変速機の
設計に当たり、さまざまな試験を行ったところ、圧力シ
リンダの力を弱くすれば上述のギア鳴りは発生しないよ
うにできるが、変速に要する時間が長くなって円滑な運
転に支障をきたす。When designing an automatic transmission for a large vehicle using power shift, the inventor conducted various tests and found that the above-mentioned gear noise could be prevented by weakening the force of the pressure cylinder, but the noise required for shifting This takes a long time and interferes with smooth driving.
逆に圧力シリンダの力を強くすると、ギア鳴りが発生し
てシンクロメソシュ機構が円滑に作動せず、また、歯車
を早く摩耗させることになることがわかった。On the other hand, it was found that if the force of the pressure cylinder was increased, gear noise would occur and the synchromesh mechanism would not operate smoothly, and the gears would wear out faster.
本発明はこれを改良するもので、変速に要する時間が短
く、かつ、シンクロメツシュ機構の作動が円滑に行われ
る変速機の駆動装置を提供することを目的とする。The present invention is an improvement on this, and an object of the present invention is to provide a drive device for a transmission in which the time required for shifting is short and the synchromesh mechanism operates smoothly.
Ｃ問題点を解決するだめの手段〕
本発明は、圧力シリンダと、この圧力シリンダ内を移動
するピストンと、このピストンに連結されたピストンロ
ッドとを備え、このピストンロッドに変速機のレバーが
連結される変速機の駆動装置において、
上記圧力シリンダは、ピストンの定常的な移動範囲の両
側に通気孔が設けられ、その両側の通気孔のそれぞれに
、圧縮空気を導入する状態とその通気孔の空気を排気す
る状態を切換える電磁三方弁が連結され、その両側の電
磁三方弁の通電電流を互いに関連して制御する電気回路
とを備えたことを特徴とする。Means for Solving Problem C] The present invention includes a pressure cylinder, a piston that moves within the pressure cylinder, and a piston rod connected to the piston, and a lever of a transmission is connected to the piston rod. In the drive device for a transmission, the pressure cylinder is provided with vents on both sides of the piston's steady movement range, and compressed air is introduced into each of the vents on both sides. The present invention is characterized in that an electromagnetic three-way valve for switching the air exhaust state is connected to the electromagnetic three-way valve, and an electric circuit is provided for controlling the current flowing through the electromagnetic three-way valves on both sides in relation to each other.
圧力シリンダの左右の端部に設けられた通気孔に、圧縮
空気を送り込み、または排出する操作を行う電磁三方弁
をそれぞれ設ける。圧力シリンダのピストンの両側面に
この二組の電磁三方弁の一方から圧縮空気を送り込み、
他の一方から排出してピストンを移動させるが、この送
り込みと排出との制御のシーフェンスを適当に選択すれ
ば、ピストンの移動時間とシフト力を加減することがで
きる。Three-way electromagnetic valves are provided in the vents provided at the left and right ends of the pressure cylinder to supply or discharge compressed air. Compressed air is sent from one of these two sets of electromagnetic three-way valves to both sides of the piston of the pressure cylinder,
The piston is moved by discharging from the other side, but if the sea fence for controlling the feeding and discharging is appropriately selected, the moving time and shift force of the piston can be adjusted.
本発明の実施例を図面によって説明する。 Embodiments of the present invention will be described with reference to the drawings.
第１図は本発明第一実施例の要部構成図で、圧力シリン
ダＣと、この圧力シリンダＣの内部を移動するピストン
ＰＳと、このピストンＰＳに連結されたピストンロッド
ＰＲと、このピストンロッドＰＲに連結され図外の変速
機を駆動するレバーＬＶとから構成される。FIG. 1 is a configuration diagram of the main parts of the first embodiment of the present invention, which includes a pressure cylinder C, a piston PS moving inside this pressure cylinder C, a piston rod PR connected to this piston PS, and this piston rod. It consists of a lever LV that is connected to PR and drives a transmission (not shown).
ここで本発明の特徴とするところは、圧力シリンダＣの
内部で、ピストンＰＳが定常的に移動する際に区分され
る両側の室ＡおよびＢに通気孔ＰＩおよびＰ２がそれぞ
れ設けられ、これら通気孔Ｐ１およびＰ２のそれぞれに
、タンクＲからの圧縮空気を空気管ＡＩを介して導入す
る状態と上記通気孔Ｐ１およびＰ２の空気をそれぞれ空
気管Ａ２およびＡ３を介して空気絞りＴ１およびＴ２を
介して排気する状態を切換える電磁三方弁ＳＬＩおよび
ＳＬ２が連結されたことにある。さらに、これらの電磁
三方弁ＳＬＩおよびＳＬ２の電磁コイルＣＩおよびＣ２
に、それぞれバス１および２を介して通電される通電電
流を互いに関連して制御する電気回路ＣＰを備えたこと
にある。Here, the feature of the present invention is that inside the pressure cylinder C, vent holes PI and P2 are provided in the chambers A and B on both sides, which are divided when the piston PS moves steadily, and these vent holes PI and P2 are provided, respectively. Compressed air from the tank R is introduced into the air holes P1 and P2 through the air pipe AI, and air from the air holes P1 and P2 is introduced into the air holes P1 and P2 through the air pipes A2 and A3, respectively, and through the air throttles T1 and T2. The electromagnetic three-way valves SLI and SL2 are connected to each other to switch the exhaust state. Furthermore, the electromagnetic coils CI and C2 of these electromagnetic three-way valves SLI and SL2
Furthermore, an electric circuit CP is provided which controls the currents supplied via the buses 1 and 2 in conjunction with each other.
第１図では説明のためにピストンＰＳの左側の室Ａには
若干の空間があるように描かれているが、実際にはピス
トンＰＳは圧力シリンダＣの内壁の左端面に接している
。In FIG. 1, for the sake of explanation, the chamber A on the left side of the piston PS is depicted as having some space, but in reality, the piston PS is in contact with the left end surface of the inner wall of the pressure cylinder C.
電磁三方弁ＳＬＩおよびＳ Ｌ ２はパス１および２を
介して制御回路ｃｐより通電電流がそれぞれ電磁コイル
ＣＩおよびＣ２に通電され付勢されると、弁Ｖ１および
■２はそれぞればねＳＰＩおよびＳＦ３に抗して押し下
げられる。これにより空気管ＡＩを空気管Ａ２またはＡ
３とそれぞれ連通し、室ＡまたはＢに圧縮空気を送り込
む。電磁コイルＣ１およびＣ２の通電電流が断たれ、消
磁されると弁■１およびＶ２はばねＳＰＩおよびＳＦ３
によって押し上げられ、上記空気管Ａ１と空気管Ａ２ま
たはＡ３との連通を断つ。これにより室ＡおよびＢに込
められた圧縮空気を空気絞りＴ１およびＴ２ををする排
気口ＥＸＩまたはＥＸ２より、それぞれ大気中に放出す
る。When the electromagnetic three-way valves SLI and S L 2 are energized by applying current from the control circuit cp to the electromagnetic coils CI and C2 through paths 1 and 2, the valves V1 and ■2 are energized by the springs SPI and SF3, respectively. I resist and get pushed down. This allows air pipe AI to be connected to air pipe A2 or A.
3 and send compressed air into chamber A or B, respectively. When the current flowing through the electromagnetic coils C1 and C2 is cut off and demagnetized, the valves ■1 and V2 are activated by springs SPI and SF3.
The air pipe A1 is pushed up by the air pipe A2 or A3, and the communication between the air pipe A1 and the air pipe A2 or A3 is cut off. As a result, the compressed air contained in the chambers A and B is discharged into the atmosphere through the exhaust ports EXI and EX2 that form the air throttles T1 and T2, respectively.
いまピストンＰＳを第１図の左側より右側に、すなわち
室Ａ側より室Ｂ側に移動する場合を考える。この場合、
第２図の圧力変化曲線図の曲線ａに示すように電磁三方
弁ＳＬ２をｔ１時間付勢して、室Ｂの圧力を上昇させて
おき、ｔ３時間後に電磁三方弁ＳＬ２を消磁させるとと
もに、電磁三方弁ＳＬＩを付勢すると、室への圧力は曲
線Ｃに従って上昇し、室Ｂの圧力は曲線すに従って下降
する。ピストンＰＳの室Ｂ側への移動はピストンの両面
に作用する圧力の差によるので、第２図において、曲線
すと曲線Ｃとの交点Ｘから開始され、時間Ｔ２後にピス
トンＰＳは室Ｂ側に移動を完了する。この時間Ｔ、の大
きさは曲ＦａｂおよびＣの形状が一定であるので、交点
Ｘにおける圧力値によって変化する。すなわちＸ点の圧
力が高いと時間Ｔおば大きくなる。Let us now consider the case where the piston PS is moved from the left side to the right side in FIG. 1, that is, from the chamber A side to the chamber B side. in this case,
As shown in curve a of the pressure change curve diagram in FIG. When the three-way valve SLI is energized, the pressure in the chamber increases according to curve C, and the pressure in chamber B decreases according to curve C. The movement of the piston PS toward the chamber B side is due to the difference in pressure acting on both sides of the piston, so in Fig. 2, the curve starts from the intersection point X with the curve C, and after time T2, the piston PS moves toward the chamber B side. Complete the move. Since the shapes of the curves Fab and C are constant, the magnitude of this time T changes depending on the pressure value at the intersection X. That is, when the pressure at point X is high, time T becomes long.
さらに第３図に示すように、電磁三方弁ＳＬ２の付勢を
室Ｂの圧力上昇が曲線ｄとなるように、短い時間も、後
に中止し、直ちに電磁三方弁ＳＬ１を付勢して曲ｙＡｆ
のように室Ａの圧力を増加させると、室Ｂの圧力は曲ｂ
ｉ ｅに従って低下し、交点ｙに至ってピストンＰＳは
室Ｂの方向に移動し、時間Ｔ、後に移動は完了する。こ
の場合交点ｙの圧力は時間１ｂが第２図に示す時間Ｌ１
より短いので、交点Ｘの圧力よりも低い。したがってピ
ストンＰＳの室Ａより室Ｂへの移動時間Ｔ、は第２図の
Ｔ、よりも短（なる。Furthermore, as shown in FIG. 3, the energization of the electromagnetic three-way valve SL2 is stopped for a short time so that the pressure rise in chamber B becomes curve d, and then the electromagnetic three-way valve SL1 is immediately energized to curve yAf.
When the pressure in chamber A is increased as in, the pressure in chamber B becomes curve b.
ie, the piston PS moves in the direction of chamber B until reaching the intersection y, and the movement is completed after a time T. In this case, the pressure at the intersection y is the time 1b, which is the time L1 shown in FIG.
Since it is shorter, it is lower than the pressure at intersection X. Therefore, the time T for the piston PS to move from chamber A to chamber B is shorter than T in FIG.
このように第１図において、制御回路ＣＰのパス１およ
び２によって電磁三方弁ＳＬＩおよびＳｂ２を付勢また
は消磁するシーフェンスを変化させることにより、ピス
トンＰＳの移動時間およびシフト力を加減することがで
きる。In this way, in FIG. 1, by changing the sea fence that energizes or demagnetizes the electromagnetic three-way valves SLI and Sb2 by paths 1 and 2 of the control circuit CP, the travel time and shift force of the piston PS can be adjusted. can.
本発明によれば、自動車用変速機の歯車を切換える際の
駆動力を適宜加減できるので、変速機のシンクロメツシ
ュ機構に無理な力を与えず、破損を防ぎ、部品寿命の延
命化をはかる効果がある。According to the present invention, the driving force when changing gears of an automobile transmission can be adjusted appropriately, so that excessive force is not applied to the synchromesh mechanism of the transmission, preventing damage and extending the life of parts. effective.
第１図は本発明第一実施例の要部構成図。
第２図はピストン移動時間の長い場合の圧力変化曲線図
。
第３図はピストン移動時間の短い場合の圧力変化曲線。
Ａ、Ｂ・・・室、ＡＩ、Ａ２、Ａ３・・・空気管、Ｃ・
・・圧力シリンダ、Ｃ１、Ｃ２・・・電磁コイル、ＣＰ
・・・制御回路、ＥＸＩ、ＥＸ２・・・排気口、ＬＶ・
・・レバー、Ｐｌ、Ｐ２・・・通気７Ｌ、Ｐ Ｒ・・・
ピストンロッド、ＰＳ・・・ピストン、Ｒ・・・タンク
、ＳＬＩ、Ｓｂ２・・・電磁三方弁、ＳＰＩ、ＳＰ２・
・・ばね、Ｔ１、Ｔ２・・・空気絞り、Ｖｌ、Ｖ２・・
・弁、１．２・・・パス、ａ〜ｒ・・・圧力変化を示す
曲線、１ａ、１．・・・圧力上昇時間、Ｔ、 、Ｔ、・
・・ピストン移動時間。FIG. 1 is a diagram showing the main parts of a first embodiment of the present invention. FIG. 2 is a pressure change curve diagram when the piston movement time is long. Figure 3 shows the pressure change curve when the piston travel time is short. A, B...Chamber, AI, A2, A3...Air pipe, C.
...Pressure cylinder, C1, C2...Electromagnetic coil, CP
...Control circuit, EXI, EX2...Exhaust port, LV.
... Lever, Pl, P2... Ventilation 7L, P R...
Piston rod, PS...piston, R...tank, SLI, Sb2...electromagnetic three-way valve, SPI, SP2・
・・Spring, T1, T2・・Air throttle, Vl, V2・・・
- Valve, 1.2... Pass, a to r... Curve showing pressure change, 1a, 1.・・・Pressure rise time, T, ,T,・
...Piston movement time.
Claims (1)
ピストンと、このピストンに連結されたピストンロッド
とを備え、 このピストンロッドに変速機のレバーが連結される変速
機の駆動装置において、 上記圧力シリンダは、 ピストンの定常的な移動範囲の両側に通気孔が設けられ
、 その両側の通気孔のそれぞれに、圧縮空気を導入する状
態とその通気孔の空気を排気する状態を切換える電磁三
方弁が連結され、 その両側の電磁三方弁の通電電流を互いに関連して制御
する電気回路と を備えたことを特徴とする変速機の駆動装置。(1) In a transmission drive device comprising a pressure cylinder, a piston that moves within the pressure cylinder, and a piston rod connected to the piston, and in which a transmission lever is connected to the piston rod, the above-mentioned pressure The cylinder has ventilation holes on both sides of the piston's regular movement range, and each of the ventilation holes on both sides has an electromagnetic three-way valve that switches between introducing compressed air and exhausting the air from the ventilation hole. What is claimed is: 1. A drive device for a transmission, comprising: an electrical circuit that is connected to the three-way electromagnetic valve;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11473985A JPS61274153A (en) | 1985-05-28 | 1985-05-28 | Driving apparatus for transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11473985A JPS61274153A (en) | 1985-05-28 | 1985-05-28 | Driving apparatus for transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61274153A true JPS61274153A (en) | 1986-12-04 |
| JPH0563667B2 JPH0563667B2 (en) | 1993-09-13 |
Family
ID=14645433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11473985A Granted JPS61274153A (en) | 1985-05-28 | 1985-05-28 | Driving apparatus for transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61274153A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040006913A (en) * | 2002-07-16 | 2004-01-24 | 현대자동차주식회사 | Shift automatic control of manual transimission |
| JP2008020004A (en) * | 2006-07-13 | 2008-01-31 | Hino Motors Ltd | Drive device for transmission |
-
1985
- 1985-05-28 JP JP11473985A patent/JPS61274153A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040006913A (en) * | 2002-07-16 | 2004-01-24 | 현대자동차주식회사 | Shift automatic control of manual transimission |
| JP2008020004A (en) * | 2006-07-13 | 2008-01-31 | Hino Motors Ltd | Drive device for transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0563667B2 (en) | 1993-09-13 |
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