US 11,807,219 B2
Driveline disconnect clutch operating methods and system
Akshay Bichkar, Ann Arbor, MI (US); Jason Meyer, Canton, MI (US); Maruthi Ravichandran, Dearborn, MI (US); Ravikumar Tumu, Westland, MI (US); and Jeffrey Allen Doering, Canton, MN (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Dec. 10, 2021, as Appl. No. 17/643,754.
Prior Publication US 2023/0182717 A1, Jun. 15, 2023
Int. Cl. B60W 20/40 (2016.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 10/02 (2006.01)
CPC B60W 20/40 (2013.01) [B60W 10/02 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/081 (2013.01); B60W 2510/083 (2013.01); B60W 2540/10 (2013.01); B60W 2710/021 (2013.01); B60W 2710/06 (2013.01); B60W 2710/08 (2013.01)] 11 Claims
OG exemplary drawing
 
8. A driveline operating method, comprising:
increasing a driveline disconnect clutch torque capacity in response to a torque reserve of an electric machine being sufficient to start an engine when change of mind conditions are present after an engine shutdown; and
decreasing the driveline disconnect clutch torque capacity and starting the engine via an alternative engine starting device in response to the torque reserve of the electric machine being insufficient to start the engine when the change of mind conditions are present after the engine shutdown, where the change of mind conditions are an increasing driver demand and a non-zero engine speed, and where the alternative engine starting device is a belt integrated starter/generator or a flywheel starter.