CLUTCH CONTROL METHOD

PROBLEM TO BE SOLVED: To reduce a shock caused in accordance with changes of a vehicle acceleration at the time of release operation and connection operation of a clutch. SOLUTION: When a gear shift demand of the transmission is detected, output of an engine is controlled to reduce and engine torque...

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Bibliographische Detailangaben
Hauptverfasser:	TERAKAWA TOMOMITSU, OI TAKAO, NAKAO MICHIAKI, YAMADA NAOKI, KUMAGAI TOSHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CLUTCHES COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING COMBUSTION ENGINES COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce a shock caused in accordance with changes of a vehicle acceleration at the time of release operation and connection operation of a clutch. SOLUTION: When a gear shift demand of the transmission is detected, output of an engine is controlled to reduce and engine torque transmitted to an input shaft of a transmission through a clutch from an output shaft of the engine to a set value Ti determined by an engine torque at the time of gear shift demand and gear shift stage (execution of steps 208, 209, 207) so that a first time inflection point occurs at substantially zero of vehicle acceleration in a fluctuation characteristic curve of vehicle acceleration obtained by the control of engine outputs. Moreover, after the control of engine outputs is maintained for a set time tfe (execution of steps 211, 212) the clutch is completely released (execution of step 215) by a clutch actuator so that the fluctuation of vehicle acceleration which occurs after that is converged substantially in the vicinity of zero.