Learning method for oncoming clutch fill level and volume

Details Learning method for oncoming clutch fill level and volume Learning method for oncoming clutch fill level and volume

2005-07-12

2005-07-12

Bonck, Rodney H. (Department: 3681)

192 clutches and power-stop control

Clutches

Operators

C192S10900B, C477S086000, C477S155000, C701S059000, C701S068000

Reexamination Certificate

active

06915890

ABSTRACT:
A method for adaptively learning clutch volumes and fill level to compensate for build tolerances and clutch wear includes increasing a fill level of a clutch during an oncoming fill phase of a clutch to clutch transmission. A state of a regulator valve of the clutch to clutch transmission is monitored during the oncoming fill phase. Fill level of the clutch is adjusted before a next shift based on whether the regulator valve switches from a regulating state to a full feed state before elapse of a valid shift time.

REFERENCES:
patent: 5079970 (1992-01-01), Butts et al.
patent: 5119695 (1992-06-01), Milunas et al.
patent: 6292732 (2001-09-01), Steinmetz et al.

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