Abstract: A method is disclosed for controlling operation of a motor-driven brake boost assist system of a vehicle braking system during a loss of battery power to the brake boost assist system. The method may involve detecting a condition during which a power loss event to the brake boost assist system has occurred, and a motor associated with the brake boost assist system is being driven by linear movement of a component within the brake boost assist system in response to fluid pressure developed within the brake boost assist system. The method further involves using a voltage generated by the motor during the power loss event to help initiate a dynamic braking action on the motor.

Abstract: A brake boost assist system for use with a master cylinder of a motor vehicle braking system, includes an inductive sensing system. The inductive sensing system has sensing devices carried on an input member and an output member, where the input and output members are coupled to respective ones of an input rod and an output rod of the brake boost assist system. Movement of the input and output members relative to one another, and relative to a fixed element of the inductive sensing system positioned within the brake boost assist system, enables an accurate estimation of the distance of a pedal gap which separates faces of the input and output rods. The accurate estimation of the pedal gap distance enables a more accurate determination to be made of the braking force required for any given pedal stroke input by an operator of the vehicle during a braking action.

Abstract: A brake boost assist system for use with a master cylinder of a motor vehicle braking system, includes an inductive sensing system. The inductive sensing system has sensing devices carried on an input member and an output member, where the input and output members are coupled to respective ones of an input rod and an output rod of the brake boost assist system. Movement of the input and output members relative to one another, and relative to a fixed element of the inductive sensing system positioned within the brake boost assist system, enables an accurate estimation of the distance of a pedal gap which separates faces of the input and output rods. The accurate estimation of the pedal gap distance enables a more accurate determination to be made of the braking force required for any given pedal stroke input by an operator of the vehicle during a braking action.

Abstract: A method is disclosed for controlling operation of a motor-driven brake boost assist system of a vehicle braking system during a loss of battery power to the brake boost assist system. The method may involve detecting a condition during which a power loss event to the brake boost assist system has occurred, and a motor associated with the brake boost assist system is being driven by linear movement of a component within the brake boost assist system in response to fluid pressure developed within the brake boost assist system. The method further involves using a voltage generated by the motor during the power loss event to help initiate a dynamic braking action on the motor.