RANGE SWITCHING DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To discriminate the fail of a position sensor and the misoperation of a manual release mechanism. SOLUTION: This device has a selector valve 2 for switching a shift range of an automatic transmission, a selector valve control means for positioning the selector valve 2 at a shif...

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Bibliographic Details
Main Authors OGOSHI NAOKI, TSUZUKI SHIGEO, MAEDA JIRO
Format Patent
LanguageEnglish
Published 08.05.2003
Edition7
Subjects
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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Summary:PROBLEM TO BE SOLVED: To discriminate the fail of a position sensor and the misoperation of a manual release mechanism. SOLUTION: This device has a selector valve 2 for switching a shift range of an automatic transmission, a selector valve control means for positioning the selector valve 2 at a shift position instructed by a shift lever 25, the manual release mechanism 60 capable of manually operating the selector valve 2 from a parking range to the other shift range, the position sensor 21 for detecting the position of the selector valve 2, a fail/misoperation decision means for deciding whether the position sensor fails or the manual release mechanism is operated, and an operation inhibition means capable of inhibiting the operation of the manual release mechanism when the manual release mechanism is decided to be operated by the fail/misoperation decision means. The fail of the position sensor and the misoperation of the manual release mechanism can be accurately discriminated and subsequent control can be properly performed.
Bibliography:Application Number: JP20010327048