MANUAL SHIFT CONTROL DEVICE OF AUTOMATIC TRANSMISSION

• Main Author: OYAMA HAJIME
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2017
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To improve a shift responsiveness in a manual shift mode of an automatic transmission as much as possible and prevent shifting-up by mistake contrary to a driver's intention, by making shifting according to a driver's intention carried out in an early stage, such as in the middle of a shift action.SOLUTION: When an action speed of a shifting-up action of a manual shift action member in the middle of a shift action is equal to or more than a predetermined shifting-up determination value, a shifting-up operation in a transmission mechanism of an automatic transmission is started (step S6). In addition, when an action speed of a shifting-down action of the manual shift action member in the middle of a shift action is equal to or more than a predetermined shifting-down determination value, a shifting-down operation in the transmission mechanism is started (step S6). Furthermore, when a revolution speed of an engine is lower than a predetermined revolution speed, the above shifting-up determination value is changed to be larger than the shifting-down determination value (step S7).SELECTED DRAWING: Figure 6 【課題】ドライバーの意図に合った変速を、変速操作の途中という早期の段階で行えるようにして、自動変速機の手動変速モード時の変速応答性を出来る限り向上させるとともに、ドライバーの意図に反して誤ってシフトアップするのを出来る限り抑制する。【解決手段】手動変速操作部材のシフトアップ操作の操作途中における操作速度が所定のシフトアップ判定値以上になったときには、自動変速機の変速機構でのシフトアップ動作を開始させるとともに（ステップＳ６）、手動変速操作部材のシフトダウン操作の操作途中における操作速度が所定のシフトダウン判定値以上になったときには、上記変速機構でのシフトダウン動作を開始させ（ステップＳ６）、さらに、エンジンの回転数が所定回転数よりも低いときにおいて、上記シフトアップ判定値を上記シフトダウン判定値よりも大きくなるように変更する（ステップＳ７）。【選択図】図６