Hydraulic controller for vehicle automatic gearbox has fail-safe arrangement for delivering fail-safe hydraulic pressure to at least two servos to achieve any transmission ratio if solenoid fault occurs

The controller has a number of frictional engagement elements, hydraulic servo devices for engaging and disengaging the frictional elements in accord with the application and release of a hydraulic pressure, a solenoid valve for producing a certain hydraulic pressure and applying it to a hydraulic s...

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Hauptverfasser: OGASAWARA, HIDEAKI, IIJIMA, YOSHIHIRO, KANOU, TAKENORI, FUKAYA, NAOYUKI, ITOU, MASAYASU
Format: Patent
Sprache:eng ; ger
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