JPH01152836U

JPH01152836U -

Info

Publication number: JPH01152836U
Application number: JP1988050055U
Authority: JP
Priority date: 1988-04-14
Filing date: 1988-04-14
Publication date: 1989-10-20

Description

[Brief explanation of the drawing]

第１図は本考案の実施例による自動変速装置の
全体構成を示すブロツク図、第２図は第１図に示
した装置におけるシフトパターンの一例を説明す
る概念図、第３図は第２図のシフトパターンにお
けるＰＷおよびＤレンジのシフトマツプを示す線
図、第４図はそのデユーテイ率決定のためのマツ
プの一例を表すグラフ、第５図は走行中、クラツ
チ接、クラツチ切等のバルブの開閉を説明する状
態図、第６図は第１図に示したブロツク図におけ
る制御プログラムのメインルーチンを示すフロー
チヤート、第７図はその制御プログラムの内の始
動ルーチンを示すフローチヤート、第８図はその
制御プログラムの内の発進ルーチンを示すフロー
チヤート、第９図はその制御プログラムの内の［
ＣＬＬＥ］ルーチンを示すフローチヤート、第１
０図はクラツチストロークとそのストロークに置
けるクラツチの作動時間との関係を示す線図、第
１１図は第８図に示した発進処理における微動処
理を説明するための線図、第１２図は第８図に示
した発進処理におけるクラツチ用エアアクチユエ
ータのデユーテイ制御を説明するための線図、第
１３図はクラツチストロークのヒステリシス特性
図である。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、
２３……コントロールラツク、２５……電磁アク
チユエータ、２７……エンジン回転センサ、３３
……エアシリンダ、３５……クラツチストローク
センサ、５３……電磁弁、７９……車速センサ、
９５……マイクロコンピユータ、９７……記憶装
置。 FIG. 1 is a block diagram showing the overall configuration of an automatic transmission according to an embodiment of the present invention, FIG. 2 is a conceptual diagram illustrating an example of a shift pattern in the device shown in FIG. 1, and FIG. Fig. 4 is a graph showing an example of a map for determining the duty rate, Fig. 5 is a diagram showing the shift map of PW and D ranges in the shift pattern of FIG. 6 is a flowchart showing the main routine of the control program in the block diagram shown in FIG. 1, FIG. 7 is a flowchart showing the starting routine of the control program, and FIG. A flowchart showing the starting routine in the control program, FIG.
CLLE] Flowchart showing the routine, 1st
0 is a diagram showing the relationship between the clutch stroke and the clutch operating time during that stroke, FIG. 11 is a diagram for explaining the slight movement process in the start process shown in FIG. 8, and FIG. FIG. 8 is a diagram for explaining the duty control of the clutch air actuator in the start process, and FIG. 13 is a hysteresis characteristic diagram of the clutch stroke. 11...Engine, 15...Friction clutch, 1
7...Gear type transmission, 21...Fuel injection pump,
23... Control rack, 25... Electromagnetic actuator, 27... Engine rotation sensor, 33
... Air cylinder, 35 ... Clutch stroke sensor, 53 ... Solenoid valve, 79 ... Vehicle speed sensor,
95...Microcomputer, 97...Storage device.

補正平１．７．１３図面の簡単な説明を次のように補正する。明細書第５９頁第１３行乃至第１５行の「第８
図……第１３図は」を削除する。Amendment 1.7.13 Hei 1. The brief description of the drawing is amended as follows. “No. 8” on page 59, lines 13 to 15 of the specification
Figure...Figure 13 is deleted.

Claims

[Scope of Claim for Utility Model Registration] A friction clutch connected to the engine, an air actuator for the clutch that operates the friction clutch, an engine rotation sensor that detects the rotation speed of the engine, and a gear connected to the friction clutch. A clutch stroke sensor detects the clutch stroke amount, and the engine rotation speed from the engine rotation sensor and the clutch stroke amount from the clutch stroke sensor are input, and the duty ratio for the clutch air actuator is determined. The control unit is configured to control the direction in which the clutch is engaged from a state immediately before the half-clutch (LE point) obtained by a preset duty ratio at the time of starting, before the engine rotation reaches its peak. An automatic transmission device for a vehicle, characterized in that the duty ratio is updated to a duty ratio that can set a state immediately before a half-clutch (LE-α') biased toward the half-clutch state.