JPS62134956U

JPS62134956U -

Info

Publication number: JPS62134956U
Application number: JP2157086U
Authority: JP
Priority date: 1986-02-19
Filing date: 1986-02-19
Publication date: 1987-08-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の構成図、第２図は
同実施例におけるロータリーバルブの構成を示す
縦断面図、第３図〜は第２図の―〜―
断面図、第４図は変速時の回転スプールの回転
角度位置と圧力スイツチの状態および摩擦要素の
供給圧の変化を示す図である。１……トルクコンバータ、Ｃ_１……リヤクラツ
チ、Ｃ_２……フロントクラツチ、Ｃ_３……ダイレ
クトクラツチ、Ｃ_４……ロー・リバースブレーキ
、Ｂ_１……ＯＤブレーキ、Ｂ_２……セカンドブレ
ーキ、６０……モータコントローラ、６１……ロ
ータリーバルブ、６１ａ……入力ポート、６１ｂ
〜６１ｄ……出力ポート、６２……ステツプモー
タ、６３，６４……方向切換弁、６６……車速セ
ンサ、６８……スロツトル弁開度センサ、８０…
…バルブハウジング、８１……回転スプール、８
２〜８５……第１〜第４バルブ、９２，９３……
ドレーン路、９４〜９７……貫通孔、１００……
シヤフト部、１０２……ライン圧供給路、Ｓ_３，
Ｓ_４……圧力スイツチ、Ｐ_１……所定値、Ａ〜Ｅ
……正規の回転角度位置、Ｂ_ａ，Ｄ_ａ，Ｄ_ｂ，Ｅ
_ａ……補助の回転角度位置。 Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a vertical sectional view showing the structure of a rotary valve in the same embodiment, and Figs.
The sectional view, FIG. 4, is a diagram showing changes in the rotational angular position of the rotary spool, the state of the pressure switch, and the supply pressure of the friction element during gear shifting. 1...torque converter, _C1 ...rear clutch, _C2 ...front clutch, _C3 ...direct clutch, _C4 ...low reverse brake, _B1 ...OD brake, _B2 ...second brake, 60 ...Motor controller, 61...Rotary valve, 61a...Input port, 61b
~61d... Output port, 62... Step motor, 63, 64... Directional switching valve, 66... Vehicle speed sensor, 68... Throttle valve opening sensor, 80...
... Valve housing, 81 ... Rotating spool, 8
2 to 85...1st to 4th valves, 92, 93...
Drain path, 94-97... Through hole, 100...
Shaft part, 102...Line pressure supply path, _S3 ,
_S4 ...Pressure switch, _P1 ...Predetermined value, A to E
...Regular rotation angle position, B _a , D _a , D _b , E
_a ...Auxiliary rotation angle position.

Claims

[Claims for Utility Model Registration] An auxiliary transmission mechanism control device for an automatic transmission that controls engagement/disengagement of hydraulic friction elements for gear shifting constituting an auxiliary transmission mechanism of the automatic transmission, comprising: A regular motor for each shift range is provided with a port for the friction element, and the port is selected by switching the rotational angular position of the rotary spool, and the port is selected to form a hydraulic circuit corresponding to each shift range. A rotational angular position and an auxiliary rotational angular position forming a hydraulic circuit that allows hydraulic pressure to be supplied to the friction element that is engaged when switching a predetermined gear shift range, but prevents hydraulic pressure release of the friction element that is released. a rotary valve; a motor connected to a rotary spool of the rotary valve to rotate the rotary spool; and a motor provided for at least one of the friction elements, the motor being connected to a rotary spool of the rotary valve and configured to rotate the rotary spool; a predetermined pressure detector that detects whether or not the gear shift range is changed; and a predetermined pressure detector that switches the rotational angular position of the rotary spool to set it to a regular rotational angular position corresponding to the gearshift range after shifting when changing the gearshift range; When switching to the range, the rotary spool is once set to the corresponding auxiliary rotational angle position, and then the supply pressure is adjusted to a predetermined value by the predetermined pressure detector provided for the friction element that is engaged during the shift. an auxiliary transmission mechanism for an automatic transmission, comprising a motor control means for driving and controlling the motor so as to set the rotating spool to a corresponding regular rotational angle position when it is detected that the rotating spool has reached a corresponding regular rotational angle position Control device.