JPH0234863U

JPH0234863U -

Info

Publication number: JPH0234863U
Application number: JP11431888U
Authority: JP
Priority date: 1988-08-31
Filing date: 1988-08-31
Publication date: 1990-03-06

Description

[Brief explanation of drawings]

第１図は本考案の一実施例としての車両用自動
変速装置の概略構成図、第２図はそのシフトパタ
ーン図、第３図はそのＰＷ，Ｄレンジで変速域設
定シフトマツプの特性線図、第４図はデユーテイ
率決定のためのマツプの特性線図、第５図は走行
中、クラツチ接、クラツチ切、等の電磁弁の開閉
特性の説明図、第６図はクラツチ及びエンジン回
転数の経時変化特性図、第７図はクラツチストロ
ークの制し変化特性図、第８図は目標ピーク回転
数算出用のデータマツプの特性図、第９図は発進
時のエンジン回転数、その他、の経時変動特性線
図、第１０図乃至第１８図は同上装置内のコント
ロールユニツトの内蔵する自動変速制御プログラ
ムのフローチヤートである。１１……エンジン、１５……摩擦クラツチ、１
７……歯車式変速機、２１……燃料噴射ポンプ、
２５……電磁アクチユエータ、２７……エンジン
回転センサ、４１……クラツチ回転センサ、７１
……コントロールユニツト、７９……車速センサ
、８５……アクセルセンサ、１０６……ＰＡＲス
イツチ、１０７……ホイールブレーキ、１１１…
…電磁弁。 FIG. 1 is a schematic configuration diagram of an automatic transmission for a vehicle as an embodiment of the present invention, FIG. 2 is a shift pattern diagram thereof, and FIG. 3 is a characteristic diagram of a shift range setting shift map in PW and D ranges. Fig. 4 is a map characteristic diagram for determining the duty rate, Fig. 5 is an explanatory diagram of the opening/closing characteristics of the solenoid valve during driving, clutch engagement, clutch disengagement, etc., and Fig. 6 is a diagram of the clutch and engine speed. Figure 7 is a characteristic diagram of clutch stroke control changes, Figure 8 is a characteristic diagram of a data map for calculating target peak rotation speed, Figure 9 is a graph of engine rotation speed at start, and other changes over time. The characteristic diagrams and FIGS. 10 to 18 are flowcharts of the automatic speed change control program built into the control unit in the same device. 11...Engine, 15...Friction clutch, 1
7... Gear type transmission, 21... Fuel injection pump,
25... Electromagnetic actuator, 27... Engine rotation sensor, 41... Clutch rotation sensor, 71
... Control unit, 79 ... Vehicle speed sensor, 85 ... Accelerator sensor, 106 ... PAR switch, 107 ... Wheel brake, 111 ...
…solenoid valve.

Claims

[Scope of utility model registration request]

a clutch actuator for intermittent operation of a friction clutch connected to an engine mounted on a vehicle;
a gear type transmission connected to the friction clutch; an engine rotation sensor that outputs rotation speed information of the engine; an accelerator sensor that outputs accelerator position information of the vehicle; and a vehicle speed sensor that outputs vehicle speed information of the vehicle. , a clutch rotation sensor that outputs rotation speed information of the output shaft of the clutch, a clutch stroke sensor that outputs stroke information of the clutch, and a clutch stroke sensor that outputs information on the stroke of the clutch; , a control means for determining that the friction clutch has reached the torque transmission point when the peak of the engine rotational speed is determined, and entering the clutch hold; The clutch stroke value is memorized at the first peak of the engine speed after the engine speed has stabilized when starting, starting on a slope, or stopping the vehicle, and the current clutch stroke value is stored at the above peak when the accelerator is subsequently opened/closed. An automatic transmission device for a vehicle, characterized in that a torque transmission point is considered to have been reached when a clutch stroke value of 200 ms is reached.