Manual torque vectoring
AssigneeFord Global Technologies, LLC
InventorsRyan O'Rourke, Mark Thomas Weston, Keith Weston
Life of this patent
Estimating the term…
Abstract
A vehicle includes an axle having left and right wheels. The vehicle further includes left and right torque-vector control devices each having an actuator with a released position, a fully actuated position, and a plurality of intermediate positions. A vehicle controller is programmed to, in response to the vehicle turning and one of the actuators being actuated, command different torques to the left and right wheels to produce torque vectoring between the wheels, wherein a difference between the torques commanded to the wheels increases as the actuator moves toward the fully actuated position and decreases as the actuator moves toward the fully released position.
Claims20
A vehicle comprising:
- an axle including left and right wheels;
- a steering wheel;
- left and right driver-actuatable inputs operable to request left-side and right-side torque vectoring, respectively;
- and
- a controller programmed to:
- in response to the steering wheel being turned left and a driver requesting left-side torque vectoring via the left input, (i) calculate a first torque differential between the left and right wheels based on steering angle, accelerator-pedal position, vehicle speed, and yaw rate, and (ii) command torque to the left and right wheels based on the first torque differential, and
- in response to the steering wheel being turned right and the driver requesting right-side torque vectoring via the right input, (i) calculating a second torque differential between the left and right wheels based on steering angle, accelerator-pedal position, vehicle speed, and yaw rate, and (ii) command torque to the left and right wheels based on the second torque differential.
A vehicle comprising:
- an axle including left and right wheels;
- left and right torque-vector control devices each including an actuator having a released position, a fully actuated position, and a plurality of intermediate positions;
- and
- a controller programmed to, in response to the vehicle turning and one of the actuators being actuated, command different torques to the left and right wheels to produce torque vectoring between the wheels, wherein a difference between the torques commanded to the wheels increases as the actuator moves toward the fully actuated position and decreases as the actuator moves toward the fully released position.
A vehicle comprising:
- a rear axle including wheels;
- friction brakes associated with the wheels;
- a driver-actuatable input;
- and
- a controller programmed to, in response to the vehicle being in drift mode and the driver-actuatable input being actuated:
- command zero torque to the wheels, regardless of a driver-demanded torque, for a duration of time,
- command engagement of the friction brakes responsive to the duration of time ending, and
- command torque to the wheels responsive to a speed of the wheels being less than a threshold.
Dependencies are inferred from the claim text.