Adaptation method for controlling shifting elements

Details Adaptation method for controlling shifting elements Adaptation method for controlling shifting elements

2005-02-15

2005-02-15

Beaulieu, Yonel (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Transmission control

Reexamination Certificate

active

06856881

ABSTRACT:
A system and method for correcting a control of relevant parameters of operation of an automatic transmission having shift elements of a hydraulically-shifted automotive automatic transmission. The influences of an alteration of the internal adaptation parameters on stored external adaptation parameters are taken into account, thus creating a quick-acting and robust adaptation system. The control algorithm is sensitive to a level of the stored external adaptation parameters, to compensate for internal parameter interactivity without requiring comprehensive evaluation of the interaction under all circumstances.

REFERENCES:
patent: 6170623 (2001-01-01), Eismann et al.
patent: 6374170 (2002-04-01), Kresse et al.

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