Patent ID: 11932254
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 12:
13. 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 less than a threshold corresponding to a spark retard limit during the shift, (i) increase a pressure of an oncoming clutch to engage the oncoming clutch, (ii) retard an engine spark at the spark retard limit to reduce the torque of the engine to the threshold during the engagement of the oncoming clutch, (iii) shutdown at least one cylinder of the engine to further reduce the torque of the engine to less than the threshold during the engagement of the oncoming clutch, and (iv) adjust a torque of the oncoming clutch via further adjusting the pressure of the oncoming clutch based on feedback corresponding to an error in an input torque to the transmission, wherein the torque of oncoming clutch is estimated based on an output torque of the transmission.