Driver directional control via the steering wheel during differential braking as steer-by-wire fallback

A method for use in a vehicle having a plurality of vehicle systems comprising a braking system configured to manipulate a brake set, a steering system configured to adjust a roadwheel direction, a propulsion system configured to deliver driving power to at least one roadwheel, a brake-to-steer system, and a controller in operable communication with the braking system, steering system, and propulsion system, the method comprising:

• determining the availability of the brake-to-steer system within the vehicle;
• determining availability of the steering system within the vehicle;
• using the controller to generate and communicate commands from the steering system to the controller and braking system, comprising:
• receiving steering requests;
• generating an adjustment signal based upon steering requests;
• and
• using the vehicle systems to manipulate at least one the brake set, the steering system, or the propulsion system based upon the adjustment signal.

A method for use in a vehicle having a plurality of vehicle systems comprising a braking system configured to manipulate a brake set, a steering system configured to adjust a roadwheel direction, a propulsion system configured to deliver driving power to at least one roadwheel, a brake-to-steer system, and a controller in operable communication with the braking system, steering system, and propulsion system, the method comprising:

• determining the availability of a brake-to-steer system within the vehicle;
• communicating the availability of the brake-to-steer system to a controller within the vehicle;
• determining availability of an electronic steering system within the vehicle;
• communicating the availability of the electronic steering system to the controller;
• and
• implementing brake-to-steer by:
• receiving steering requests from a portion of the steering system;
• converting steering requests to brake pressure requests;
• manipulating the propulsion system and the braking system within the vehicle to maintain or change vehicle velocity while applying brake pressure to at least one individual brake caliper within the vehicle according to the brake pressure requests to steer the vehicle.