Shift control apparatus for automatic transmission

Details Shift control apparatus for automatic transmission Shift control apparatus for automatic transmission

1995-04-28

1997-01-14

Wright, Dirk

Interrelated power delivery controls, including engine control

Transmission control

Control by sensed ambient condition, pattern indicia,...

B60K 4110

Patent

active

055933645

ABSTRACT:
A shift control apparatus for an automatic transmission provides a normal-temperature shift pattern and a high-temperature shift pattern. The high-temperature shift pattern is selected when a temperature of hydraulic oil for the transmission satisfies a predetermined condition. Once the high-temperature shift pattern has been selected, the apparatus inhibits the switching to the high-temperature shift pattern for a predetermined duration, thereby to avoid an excessively frequent hunting between the shift patterns.

REFERENCES:
patent: 5069084 (1991-12-01), Matsumo et al.
patent: 5261295 (1993-11-01), Iwanaga et al.
patent: 5275069 (1994-01-01), Baba et al.
"Service Manual for Nissan RE5R01A-Type Full-Range Electronically-Controlled Automatic Transmission", Nissan Motor Co., Ltd., p. A-7, Mar. 1989.

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