HYDRAULIC CONTROL DEVICE FOR AUTOMATIC TRANSMISSION

PROBLEM TO BE SOLVED: To avoid the sliding of a friction engagement element to be generally fastened while allowing efficient air exhaustion, during air exhaustion control for supplying hydraulic pressure to a hydraulic circuit for the friction engagement element to be released and exhausting an air...

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Bibliographic Details
Main Authors HORIGUCHI MASANOBU, HOSONO MASAYUKI
Format Patent
LanguageEnglish
Published 25.09.2002
Edition7
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To avoid the sliding of a friction engagement element to be generally fastened while allowing efficient air exhaustion, during air exhaustion control for supplying hydraulic pressure to a hydraulic circuit for the friction engagement element to be released and exhausting an air. SOLUTION: When the hydraulic pressure is supplied for air exhaustion, the minimum engine speed is set in response to an oil temperature. When an actual engine speed is lower than the minimum engine speed, the engine speed is increased. Thus, the delivery of an oil pump to be driven by an engine is kept as required.
Bibliography:Application Number: JP20010079882