BEV powertrain/steering controls for enhanced stability on inclined surfaces
AssigneeFord Global Technologies, LLC
InventorsKeith Weston, Brendan Diamond, Jonathan Hair, David Michael Russell, Matthew Johnson
Life of this patent
Estimating the term…
Abstract
A vehicle control system may include a sensor network sensing vehicle attitude information and a controller operably coupled to the sensor network to determine, based on the vehicle attitude information, movement of a center of gravity of the vehicle relative to an axis of rotation of the vehicle. The controller may further determine a modification to a torque application of the vehicle based on the movement of the center of gravity of the vehicle relative to the axis of rotation of the vehicle.
Claims18
A vehicle control system of a vehicle, the system comprising:
- a sensor network sensing vehicle attitude information;
- and
- a controller operably coupled to the sensor network to determine, based on the vehicle attitude information, movement of a center of gravity of the vehicle relative to an axis of rotation of the vehicle,
- wherein the controller further determines a modification to a torque application of the vehicle based on the movement of the center of gravity of the vehicle relative to the axis of rotation of the vehicle,
- wherein the controller monitors for additional movement of the center of gravity of the vehicle relative to the axis of rotation of the vehicle responsive to the modification to the torque application and, in response to the center of gravity moving toward the axis of rotation, the controller reduces propulsion torque to zero.
A method of maintaining stability of a vehicle operating on an inclined surface, the method comprising:
- receiving vehicle attitude information;
- determining proximity to a stability threshold based on the vehicle attitude information;
- modifying a torque application associated with propulsion or steering of the vehicle based on the proximity to the stability threshold;
- determining an effect of the modifying the torque application;
- and
- responsive to no change or reduction in the proximity to the stability threshold, providing additional torque application modification associated with the propulsion or the steering of the vehicle,
- wherein providing additional torque application modification monitoring for additional movement of the center of gravity of the vehicle relative to the axis of rotation of the vehicle responsive to the modification to the torque application and, in response to the center of gravity moving toward the axis of rotation, reducing propulsion torque to zero.
Dependencies are inferred from the claim text.