DEVICE FOR CONTROLLING OIL PRESSURE OF AUTOMATIC TRANSMISSION

PURPOSE:To perform always stabilized transmission shift with varied oil pressure for transmission shift according to changes in loads on a vehicle by outputting signals to an actuator so that increasing oil pressure is obtained according to the increasing load on the vehicle. CONSTITUTION:Oil pressu...

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Bibliographische Detailangaben
1. Verfasser:	IMAI TOSHITAKA
Format:	Patent
Sprache:	eng
Schlagworte:	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 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:	PURPOSE:To perform always stabilized transmission shift with varied oil pressure for transmission shift according to changes in loads on a vehicle by outputting signals to an actuator so that increasing oil pressure is obtained according to the increasing load on the vehicle. CONSTITUTION:Oil pressures in a line oil pressure passage 11 to which discharged oil from an oil pump 10 is supplied are regulated with a line pressure regulation valve 12. The line pressure regulation valve 12, when an oil pressure signal is not inputted, keeps the oil pressure constant. Signals from a load sensor 20, a vehicle speed sensor 22, and a throttle opening sensor 24 are inputted to a controller 18. Accordingly, when no signal is inputted from a shift controller 26 to the controller 18, oil pressure signal in an oil passage 17 becomes the highest. When a shift command signal is outputted under this condition, the controller 18 controls duty ratio signals supplied to a solenoid 16 to perform specified transmission shift.