Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1994-06-03
1996-06-18
Ta, Khoi Q.
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477156, B60K 4106
Patent
active
055272363
ABSTRACT:
A shift control system for an automatic transmission including frictional engagement elements to be applied by actuating a piston by an oil pressure. The shift control system comprises: a pressure regulating valve for regulating the oil pressure to be fed to the frictional engagement elements and for controlling the regulated pressure level; a shift detector for detecting a shift to be executed by feeding the oil pressure to the frictional engagement elements; a low-pressure standby unit for setting the regulated pressure level of the pressure regulator valve to such a value during a predetermined time period after the shift has been detected that the oil pressure to be fed to the frictional engagement elements moves only the piston; and a booster for controlling the regulated pressure level so that the oil pressure to be fed to the frictional engagement elements may gradually increase after lapse of the predetermined time period.
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SAE 890529, pp. 45-53, Maurice B. Leising, et al., "The All-Adaptive Controls for the Chrysler Ultradrive Transaxle".
SAE 890528, pp. 167-183, Berthold Martin, et al., "The Chrysler A-604 Ultradrive 4-Speed Automatic Transaxle".
Fukatsu Akira
Kimura Hiromichi
Oba Hidehiro
Suzuki Akitomo
Aishin AW Co., Ltd.
Jensen Nathan O.
Ta Khoi Q.
Toyota Jidosha & Kabushiki Kaisha
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