US 11,866,049 B1
Powertrain torque control during a transmission shift
Cory Benson LaRoche, Commerce Township, MI (US); Bradley Dean Riedle, Northville, MI (US); Stephen Michael Cicala, Dearborn Heights, MI (US); Jianping Zhang, Ann Arbor, MI (US); Eric Frank Banners, Plymouth, MI (US); and Mehran Namazkar, Dearborn, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by FORD GLOBAL TECHNOLOGIES, LLC, Dearborn, MI (US)
Filed on Nov. 17, 2022, as Appl. No. 17/989,297.
This patent is subject to a terminal disclaimer.
Int. Cl. B60W 10/06 (2006.01); B60W 30/19 (2012.01); B60W 10/10 (2012.01)
CPC B60W 30/19 (2013.01) [B60W 10/06 (2013.01); B60W 10/10 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/102 (2013.01); B60W 2510/1015 (2013.01); B60W 2710/0644 (2013.01); B60W 2710/0666 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A vehicle comprising:
an engine configured to generate power;
a transmission configured to transfer power from the engine to at least one drive wheel to propel the vehicle; and
a controller programmed to,
in response to a command to shift the transmission and a corresponding command to decrease a torque of the engine to a first value that (i) is based on a flare at an input to the transmission and (ii) is greater than a threshold, retard an engine spark and maintain operation of all cylinders of the engine to reduce the torque of the engine during the shift, and
in response to the command to shift the transmission and a corresponding command to decrease the torque of the engine to a second value that (i) is based on the flare at an input to the transmission and (ii) is less than the threshold during the shift, retard the engine spark and shutdown at least one cylinder of the engine to reduce the torque of the engine during the shift.