US 9,810,273 B2
Methods and system for applying a driveline disconnect clutch
Felix Nedorezov, Rochester Hills, MI (US); Francis Thomas Connolly, Ann Arbor, MI (US); Xiaoyong Wang, Novi, MI (US); Hong Jiang, Birmingham, MI (US); and Mark Steven Yamazaki, Canton, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Jul. 30, 2014, as Appl. No. 14/447,177.
Prior Publication US 2016/0032990 A1, Feb. 4, 2016
Int. Cl. B60W 20/00 (2016.01); B60W 10/02 (2006.01); F16D 48/06 (2006.01); B60W 20/40 (2016.01); F02N 11/08 (2006.01); B60W 30/00 (2006.01)
CPC F16D 48/066 (2013.01) [B60W 20/40 (2013.01); B60W 30/00 (2013.01); B60W 2510/083 (2013.01); B60W 2510/087 (2013.01); B60W 2540/106 (2013.01); B60W 2710/023 (2013.01); F02N 11/0822 (2013.01); F02N 11/0825 (2013.01); F02N 11/0833 (2013.01); F02N 2200/061 (2013.01); F16D 2500/1107 (2013.01); F16D 2500/3026 (2013.01); F16D 2500/3065 (2013.01); F16D 2500/3067 (2013.01); F16D 2500/3069 (2013.01); F16D 2500/31446 (2013.01); F16D 2500/70406 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A driveline method, comprising:
in response to an engine start request, increasing driveline disconnect clutch working fluid pressure to a start of a closing pressure responsive to an available amount of torque of a driveline integrated starter/generator (DISG), the available amount of torque of the DISG being a maximum DISG torque at a present DISG speed and temperature minus a present DISG output torque; and
increasing driveline disconnect clutch working fluid pressure from the start of closing pressure at a first rate in response to a first rate of change of an accelerator pedal, and increasing driveline disconnect clutch working fluid pressure from the start of closing pressure at a second rate in response to a second rate of change of the accelerator pedal.