Lock-up capacity control apparatus and method for torque...

Details Lock-up capacity control apparatus and method for torque... Lock-up capacity control apparatus and method for torque...

2007-07-03

2007-07-03

Estremsky, Sherry (Department: 3681)

Interrelated power delivery controls, including engine control

Clutch control

Regulated clutch engagement

C477S168000

Reexamination Certificate

active

11126329

ABSTRACT:
In lock-up capacity control apparatus and method for a torque converter, the torque converter is caused to have a converter state in which a relative revolution between input and output elements of the torque converter is free of limitation in a case where a lock-up capacity (L/Uprso) during a no-load state is equal to or larger than a shock determining lock-up capacity (α), during an acceleration slip lock up in which the lock-up capacity of the torque converter is augmented by means of a time series control which accords with a load state of an engine, and the torque converter is caused to be oriented toward a lock-up state in which the relative revolution is zeroed by continuing an augmentation of the lock-up capacity by means of the time series control in a case where the lock-up capacity during the no-load state is smaller than the shock determining lock-up capacity.

REFERENCES:
patent: 5616099 (1997-04-01), Sakai
patent: 5743828 (1998-04-01), Kuriyama et al.
patent: 6217481 (2001-04-01), Watanabe et al.
patent: 6942597 (2005-09-01), Segawa et al.
patent: 2002/0173404 (2002-11-01), Takatori et al.
patent: 2002/0175036 (2002-11-01), Takatori et al.
patent: 2003/0060330 (2003-03-01), Sato et al.
patent: 2002-106707 (2002-04-01), None

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