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US 2009/0254256 A1Published application
Transmission oil measurement system and method
AssigneeGM Global Technology Operations LLC
InventorsRandall B. Dlugoss, Bret M. Olson
Life of this patent
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Abstract
A system includes a pressure sensor that measures a transmission fluid pressure at a first fluid cavity of a transmission. A transmission control module receives the transmission fluid pressure, determines a transmission fluid temperature in the first fluid cavity based on the transmission fluid pressure, and controls the transmission fluid pressure based on the transmission fluid temperature.
Claims18
A system comprising:
- a pressure sensor that measures a transmission fluid pressure at a first fluid cavity of a transmission;
- and
- a transmission control module that receives the transmission fluid pressure, that determines a transmission fluid temperature in the first fluid cavity based on the transmission fluid pressure, and that controls the transmission fluid pressure based on the transmission fluid temperature.
A method comprising:
- measuring a transmission fluid pressure at a first fluid cavity of a transmission with a transmission sensor;
- determining a transmission fluid temperature in the first fluid cavity based on the transmission fluid pressure;
- and
- controlling the transmission fluid pressure based on the transmission fluid temperature.
1 more element
Dependencies are inferred from the claim text.