Controls and methods to calculate clutch torque to include seal friction
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United States of America
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Feb 25, 2025
Grant Date -
N/A
app pub date -
Jul 14, 2021
filing date -
Jul 14, 2021
priority date (Note) -
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Abstract
A hybrid vehicle includes an engine, an electric machine, a disconnect clutch configured to selectively couple the engine to the electric machine, and a controller. The controller is programmed to, in response to a request to start the engine with the electric machine, command a target pressure to the disconnect clutch that depends on a seal friction derived from a measured line pressure of the disconnect clutch and a rate change of the measured line pressure.
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