Control device

A control device for controlling a transmission device configured such that when the speed change mechanism performs switching to a shift speed with a different speed ratio, special speed change control is executed in which a disengagement hydraulic pressure, is lowered to cause a disengagement elem...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	INAGAKI NOBUAKI, TSUTSUI HIROSHI, IWAI NOBUHIRO, HASE SHIGEKAZU, UENO HIROYA
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	A control device for controlling a transmission device configured such that when the speed change mechanism performs switching to a shift speed with a different speed ratio, special speed change control is executed in which a disengagement hydraulic pressure, is lowered to cause a disengagement element to slip, and in which the disengagement element is maintained in a slipping state over an entire speed change process. In the case where slipping of the disengagement element is not detected within a predetermined time after the disengagement hydraulic pressure is lowered at start of the special speed change control, pressure increase correction is performed in which an engagement hydraulic pressure, which is a hydraulic pressure of hydraulic oil for an engagement element that is a friction engagement element to be engaged, is raised until slipping of the disengagement element is detected.