Control device for vehicular automatic transmission

A control device for an automatic transmission 10 having shift control means 88 operative to select a manual shift mode is provided for preventing acceleration response from deteriorating in the automatic transmission 10. The control device includes automatic up-range control means 90 for switching...

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Bibliographische Detailangaben
Hauptverfasser: KAIGAWA, MASATO, MONJI, FUMINORI, TOYODA, SHINYA, HASEGAWA, YOSHIO, SAWADA, HIROYUKI, KITAJIMA, KEI
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A control device for an automatic transmission 10 having shift control means 88 operative to select a manual shift mode is provided for preventing acceleration response from deteriorating in the automatic transmission 10. The control device includes automatic up-range control means 90 for switching a range to a "D" range when high oil-temperature determining means determines presence of a high oil-temperature state, and high oil-temperature down-range permitting means 92 for permitting a down-range during a manual shift operation until a selected uppermost gear position G SELECT reaches a determining gear position G JUGE when the accelerator-on drive determining means 86 subsequently determines presence of an accelerator-on drive. Even when obtaining a drive force is attempted during an accelerator-on drive mode after switching the range, the down-range by the manual shift operation is permitted until the selected uppermost gear position G SELECT reaches the determining gear position G JUGE . Thus, a drop in acceleration response in comparison to that of an automatic shift mode is prevented.