JPS60180851U

JPS60180851U - Creep torque control device for automatic transmission

Info

Publication number: JPS60180851U
Application number: JP6855784U
Authority: JP
Inventors: 高瀬　貞雄
Original assignee: Nissan Motor Co Ltd
Current assignee: Nissan Motor Co Ltd
Priority date: 1984-05-11
Filing date: 1984-05-11
Publication date: 1985-11-30

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案クリープトルク制御装置の概念図、第２
図は本考案クリープトルク制御装置を具えた自動変速機
の動力伝達部を示すスケルトン図、第３図は同自動変速
機の変速制御油圧回路図、第４図は本考案装置のクリー
プトルク制御回路を示す機能別ブロック線図、第５図は
同回路の制御プログラムを示すフローチャートである。１・・・トルクコンバータ、４・・・エンジン、７・・
・インプットシャフト、２０・・・アクセルペダル、２
１・・・選速枠、２３・・・アクセル開度センサ、２４
・・・レンジスイッチ、２５・・・エンジン回転数セン
サ、２６・・・タービン回転数センサ、２７・・・アウ
トプットシャフト回転数センサ、３０・・・クリープト
ルク制御装置、３１・・・減圧弁、３２・・・制御圧回
路、３３．３４・・・オリフィス、３５・・・ドレンポ
ート、３６・・・ソレノイド、４０・・・クリープトル
ク制御用コントローラ、４３・・・停車判別部、４４・
・・回転差検出部、４５・・・クリープトルク手動設定
温、４５′・・・クリープトルク自動設定器、４６・・
・比較部、４７・・・ＰＩ演算部、４８・・・パルスデ
ューティ変換部、４９・・・モードスイッチ、１０５・
・・リア会クラッチ、１１２・・・アウトプットシャフ
ト、１３０・・・選速弁、１５３・・・リア・クラッチ
圧回路。Figure 1 is a conceptual diagram of the creep torque control device of the present invention, Figure 2
The figure is a skeleton diagram showing the power transmission section of an automatic transmission equipped with the creep torque control device of the present invention, Figure 3 is a shift control hydraulic circuit diagram of the automatic transmission, and Figure 4 is the creep torque control circuit of the device of the present invention. FIG. 5 is a flowchart showing a control program of the circuit. 1...torque converter, 4...engine, 7...
・Input shaft, 20...Accelerator pedal, 2
1... Speed selection frame, 23... Accelerator opening sensor, 24
... range switch, 25 ... engine rotation speed sensor, 26 ... turbine rotation speed sensor, 27 ... output shaft rotation speed sensor, 30 ... creep torque control device, 31 ... pressure reducing valve, 32... Control pressure circuit, 33. 34... Orifice, 35... Drain port, 36... Solenoid, 40... Creep torque control controller, 43... Stop determination unit, 44...
... Rotation difference detection section, 45... Creep torque manual setting temperature, 45'... Creep torque automatic setting device, 46...
- Comparison section, 47... PI calculation section, 48... Pulse duty conversion section, 49... Mode switch, 105.
...Rear clutch, 112...Output shaft, 130...Speed selection valve, 153...Rear clutch pressure circuit.

Claims

[Scope of utility model registration request]

A vehicle capable of traveling by power from an automatic transmission having a torque converter in its power transmission system, and in which the automatic transmission is provided with a creep torque control means for controlling creep torque during a stop, wherein said stop is detected. a detection means;
creep torque detection means for detecting the creep torque while stopped; a leap torque setting device capable of changing the target creep torque; and a creep torque changer for controlling the operation of the creep torque control means so that the creep torque matches the target creep torque. 1. A creep torque control device for an automatic transmission, characterized by comprising: means.