AUTOMATIC TRANSMISSION HYDRAULIC CONTROLLER

PROBLEM TO BE SOLVED: To prevent oil discharged from an accumulator from flowing back to a strainer in a hydraulic circuit in which a hydraulic pressure is temporarily held in the accumulator.SOLUTION: In an idling stop state, a solenoid valve 16 is closed to hold a hydraulic pressure of an accumula...

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Main Authors YAMAGUCHI MASAJI, HYODO YOSHIMITSU, TSUCHIDA KENICHI, KUTSUBO HIROYUKI, HIRAI NOBUYUKI
Format Patent
LanguageEnglish
Japanese
Published 17.09.2015
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 prevent oil discharged from an accumulator from flowing back to a strainer in a hydraulic circuit in which a hydraulic pressure is temporarily held in the accumulator.SOLUTION: In an idling stop state, a solenoid valve 16 is closed to hold a hydraulic pressure of an accumulator 3. When a vehicle restarts, the solenoid valve 16 is open and a discharge pressure of the accumulator 3 acts as a D range pressure via changeover valves 17 and 19. At this time, a check valve 13 prevents the discharge pressure of the accumulator 3 from acting on a sub-strainer 12. 【課題】アキュムレータにて一時的に油圧を確保する油圧回路において、アキュムレータからの吐出油がストレーナに逆流することを防止する。【解決手段】アイドリングストップ状態では、電磁弁１６が閉塞されてアキュムレータ３の油圧が保持される。車両の再発進時、電磁弁１６が連通して、アキュムレータ３の吐出圧が、切換えバルブ１７，１９を介してＤレンジ圧として作用する。この際、アキュムレータ３の吐出圧がサブストレーナ１２に作用することを逆止弁１３により阻止する。【選択図】図１
Bibliography:Application Number: JP20140040478