SHIFT CONTROLLER OF AUTOMATIC TRANSMISSION

PROBLEM TO BE SOLVED: To provide a shift controller of an automatic transmission, capable of preventing an obstruction even when a linear solenoid valve doubling as control of a lock-up clutch and control of a clutch for a low gear according to the operation state high-pressure fails. SOLUTION: In t...

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Bibliographische Detailangaben
Hauptverfasser:	INAGAWA YASUSHI, SAITO MASAHIDE, NAKAJIMA KAZUHIRO, FUKUCHI MASAMITSU, YAMAGUCHI TAKAYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a shift controller of an automatic transmission, capable of preventing an obstruction even when a linear solenoid valve doubling as control of a lock-up clutch and control of a clutch for a low gear according to the operation state high-pressure fails. SOLUTION: In the shift controller, a gear is set by controlling the operation of a shift valve 60 with an on/off solenoid valve. In each of a working state or a set state of a cut valve 90, a pattern of the same on/off solenoid working combination of the on/off solenoid valve 84 is set to set the different change gear stage. In a 2-3 up-shifting, a hydraulic passage of a first linear solenoid valve 86 is communicated with the control side of the lock up clutch when a lock-up clutch signal is off to control the output of the first linear solenoid valve 86 to zero. COPYRIGHT: (C)2007,JPO&INPIT