Ford Global Technolgoies, LLC

Nicholas Harris

Ashok E Rodrigues

Andrew Monticello

Richard David Bruns

Kyle Culek

Cameron Dillon

A vehicle having an electric machine, a first half shaft, a second half shaft, a steering wheel, and a controller. The first and second half shafts are configured to deliver torque from the electric machine to first and second wheels, respectively. The controller is programmed to, in response to (i) locking the first half shaft to the second half shaft, (ii) displacement of at least one of the first and second half shafts or the steering wheel, and (iii) a torque command to the electric machine to a desired value resulting in a torque distribution to the first and second half shafts exceeding a torque capacity of at least one of the first and second half shafts, truncate the torque of the electric machine to less than the desired value.

Powertrain torque control system

An all-wheel-drive vehicle includes a primary axle operably coupled to an engine and a secondary axle having an input operably coupled to the engine a first halfshaft, a second halfshaft, a first clutch selectively connecting the first halfshaft to the input, and a second clutch selectively connecting the second halfshaft to the input. A transmission has an input coupled to the engine and output coupled to the primary drive axle. A driveshaft couples a power-transfer unit and the input, and a third clutch selectively couples the output to the driveshaft. A controller is programmed to, during a power-limiting routine, command a torque to the engine based on closed-loop feedback control such that the torque decreases when a calculated slip of a selected one of the first and second clutches is greater than a target slip of the selected clutch and increases when the calculated slip is less than the target slip.

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West Bloomfield, MI, United States of America

Nicholas Harris