JPH052862B

PURPOSE:To realize a rapid operation of an engine brake in a shift down from a high speed shift stage to a lower speed shift stage, by controlling in a condition through a shift stage to connect friction connecting elements or in a condition through a shift stage to connect no friction connecting el...

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Bibliographische Detailangaben
1. Verfasser:	AZUMA TOSHINORI
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 realize a rapid operation of an engine brake in a shift down from a high speed shift stage to a lower speed shift stage, by controlling in a condition through a shift stage to connect friction connecting elements or in a condition through a shift stage to connect no friction connecting element. CONSTITUTION:The feeding and the exhasting of the operation oil to hydraulic actuators 41a to 46a to operate friction connecting elements are carried out by a hydraulic circuit 60. To shift valves 71 to 73 of control stages, the first to the third control lines 106 to 108 branched from a main line 100 are connected respectively, and solenoid valves 76 to 78 installed to those control lines 106 to 108 respectively are controlled by control signals A, B, and C from a control circuit 200 respectively. Therefore, the friction connecting elements 41 to 46 are connected selectively, and the speed shift in a specific range can be carried out.