Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Patent
1999-04-01
2000-11-21
Marmor, Charles A
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
477149, F16H 6104, F16H 6106
Patent
active
061495484
ABSTRACT:
The present invention provides a method for shifting from a first gear state to a second gear state which holds one element at a predetermined level until the second reaches its fill volume. In this method, one element is applied while the other element is released. The element which reaches its fill volume first is held at a control limit. This control limit is defined by a volume between the first clutch element and a predetermined point above the fill volume of the first clutch element. This clutch element is then maintained at within the control limit until the other clutch element reaches its fill volume. The maintained clutch element is then released shortly after the other clutch element has reached its fill volume. This method ensures that neither fighting or slipping occurs between the two elements.
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Harkenrider Andrew J.
Holbrook Gerald L.
DaimlerChrysler Corporation
Lorelli Marc
Marmor Charles A
Pang Roger
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