Patent ID: 11970153
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 5:
6. A system, comprising:
an internal combustion engine;
an integrated starter/generator;
a driveline disconnect clutch positioned in a driveline between the internal combustion engine and the integrated starter/generator;
a transmission included in the driveline; and
a controller including executable instructions stored in non-transitory memory that cause the controller to command a driveline disconnect clutch pressure in response to an estimate of a driveline disconnect clutch liftoff pressure, where the driveline disconnect clutch liftoff pressure is a pressure at which a driveline disconnect clutch drag begins to increase from a substantially constant value, additional executable instructions that cause the controller to generate a derivative of the driveline disconnect clutch pressure, and additional executable instructions that cause the controller to generate the estimate of the driveline disconnect clutch liftoff pressure in response to the derivative exceeding a threshold value.