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

Claim 6:
7. 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 is greater than a threshold during the shift, (i) increase a pressure of an oncoming clutch of the transmission to engage the oncoming clutch and (ii) retard an engine spark and maintain operation of all cylinders of the engine to reduce the torque of the engine during the engagement of the oncoming clutch,
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 is less than the threshold during the shift, (i) increase the pressure of the oncoming clutch to engage the oncoming clutch and (ii) retard the engine spark and shutdown at least one cylinder of the engine to reduce the torque of the engine during the engagement of the oncoming clutch, and
in response to the command to shift the transmission and the corresponding command to decrease the torque of the engine to the first value, (i) ramp up a pressure of the oncoming clutch to a desired value and (ii) ramp down the torque of the engine to the first value during the engagement of the oncoming clutch, such that the pressure of the oncoming clutch reaches the desired value and the torque of the engine decreases to the first value within a predetermined time tolerance.