VEHICLE SHIFT CONTROL SYSTEM AND PROGRAM FOR THE SAME

• Main Authors: HIRAYAMA TAKESHI, ISHIZAKA KOICHI
• Format: Patent
• Language: English; Japanese
• Published: 14.09.2017
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a vehicle shift control system capable of restricting occurrence of shift shock even if the vehicle is kept at its low speed travelling state irrespective of whether or not a transmission is provided with a synchronizer.SOLUTION: This invention relates to a shift control system 11 for a vehicle 10 comprising a transmission 22, a transmission control unit 24 for controlling a shift of the transmission and a vehicle speed sensor 23. The transmission control unit sets a rotation speed of an output shaft 20 of the transmission on the basis of a signal from the vehicle speed sensor, sets a target rotation speed of an input shaft 14 of the transmission on the basis of the rotation speed of the output shaft, outputs a signal for executing a shift of the transmission to an actuator on the basis of the fact that the input shaft is controlled in response to the target rotation speed and further interpolates the rotation speed of the output shaft during a period in which no signal is outputted from the vehicle speed sensor.SELECTED DRAWING: Figure 1 【課題】トランスミッションがシンクロナイザを備えるか否かに拘わらず、車両が低速走行状態であっても変速ショックの発生を抑制できる車両の変速制御システムを提供する。【解決手段】トランスミッション２２と、トランスミッションの変速を制御するトランスミッションコントロールユニット２４と、車速センサ２３と、を備える車両１０の変速制御システム１１で、トランスミッションコントロールユニットは、車速センサからの信号に基づいて、トランスミッションのアウトプットシャフト２０の回転速度を設定し、アウトプットシャフトの回転速度に基づき、トランスミッションのインプットシャフト１４の目標回転速度を設定し、インプットシャフトが目標回転速度に制御されることに基づき、トランスミッションの変速を実行するための信号をアクチュエータに出力し、さらに、記車速センサから信号が出力されない間、アウトプットシャフトの回転速度を補間する。【選択図】図１