CONTROL DEVICE FOR POWER TRANSMISSION FOR VEHICLE

PROBLEM TO BE SOLVED: To prevent an accumulator from having influence on the engagement control of a friction engaging element except restarting in a vehicle performing temporary stop control of an engine during operation and having the accumulator for accumulating a fluid supplied to a hydraulic ac...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	TABATA ATSUSHI, TOMOMATSU HIDEO, TOMOHIRO TADASHI
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent an accumulator from having influence on the engagement control of a friction engaging element except restarting in a vehicle performing temporary stop control of an engine during operation and having the accumulator for accumulating a fluid supplied to a hydraulic actuator of the friction engaging element in a power transmission when restarting the engine. SOLUTION: A branch passage 57 for supplying a fluid in an accumulator 60 to passages 38, 41 is provided with a pressure accumulation control valve 58. In an operating region where the operation of the accumulator is not required and there is a possibility of speed change operation of a transmission, the accumulator control valve 58 is closed to put the accumulator in a cut-off state from the passages 38, 41. In hydraulic control of the friction engaging element (a clutch, a brake, or the like) of the transmission or the like, the degradation of control accuracy caused by absorbing the fluid to be supplied by the accumulator or conversely supplying a fluid more than necessary from the accumulator, can be prevented by the cut-off-state.