Abstract: A system for improved ABS performance during parallel regenerative braking of a vehicle includes an ABS system adapted to transmit an ABS active signal; a drive shaft position sensor adapted to transmit a drive shaft position sensor signal; and a regenerative braking system adapted to inhibit parallel regenerative braking in a primary mode using the ABS signal and in a default mode using the drive shaft position sensor signal.

Abstract: A regenerative braking control method. An illustrative embodiment of the method includes selecting a vehicle speed at onset of transition from regenerative braking to friction braking of a vehicle, comparing the vehicle speed to a threshold value, applying a delayed regenerative braking torque ramp out to a hybrid powertrain and sending an undelayed regenerative braking torque ramp-out signal to a vehicle brake controller without at onset of transition from regenerative braking to friction braking of the vehicle if the vehicle speed falls below the threshold value.

Abstract: A parallel regeneration brake torque modulation system for an electrified vehicle includes a brake pedal travel sensor adapted to transmit a brake pedal travel sensor signal upon travel of a vehicle brake pedal through at least a portion of a range of motion; and a regenerative braking system adapted to apply regeneration braking torque to a vehicle using the brake pedal travel sensor signal from the brake pedal travel sensor.

Abstract: An electric vacuum pump backup control system includes a brake on/off switch, a primary electric vacuum pump control interfacing with the brake on/off switch, a secondary electric vacuum pump control interfacing with the brake on/off switch and the primary electric vacuum pump control and an electric vacuum pump interfacing with the primary electric vacuum pump control.

Abstract: A hybrid or electric vehicle includes a hydraulic brake system having an active vacuum booster with an active boost control valve actuated by at least one controller. An isolation valve is disposed in a fluid circuit that fluidly connects a master cylinder to hydraulic brakes. A brake pedal is capable of moving in an initial deadband displacement range when initially depressed by an operator of the vehicle. While in the initial deadband displacement range, the controller selectively activates the isolation valve to inhibit fluid flow from at least a portion of the fluid circuit to the master cylinder based at least upon an operating state of the active boost control valve.

Abstract: A regenerative braking control method. An illustrative embodiment of the method includes selecting a vehicle speed at onset of transition from regenerative braking to friction braking of a vehicle, comparing the vehicle speed to a threshold value, applying a delayed regenerative braking torque ramp out to a hybrid powertrain and sending an undelayed regenerative braking torque ramp-out signal to a vehicle brake controller without at onset of transition from regenerative braking to friction braking of the vehicle if the vehicle speed falls below the threshold value.

Abstract: A hybrid or electric vehicle includes a hydraulic brake system having an active vacuum booster with an active boost control valve actuated by at least one controller. An isolation valve is disposed in a fluid circuit that fluidly connects a master cylinder to hydraulic brakes. A brake pedal is capable of moving in an initial deadband displacement range when initially depressed by an operator of the vehicle. While in the initial deadband displacement range, the controller selectively activates the isolation valve to inhibit fluid flow from at least a portion of the fluid circuit to the master cylinder based at least upon an operating state of the active boost control valve.

Abstract: A parallel regeneration brake torque modulation system for an electrified vehicle includes a brake pedal travel sensor adapted to transmit a brake pedal travel sensor signal upon travel of a vehicle brake pedal through at least a portion of a range of motion; and a regenerative braking system adapted to apply regeneration braking torque to a vehicle using the brake pedal travel sensor signal from the brake pedal travel sensor.

Abstract: A system for improved ABS performance during parallel regenerative braking of a vehicle includes an ABS system adapted to transmit an ABS active signal; a drive shaft position sensor adapted to transmit a drive shaft position sensor signal; and a regenerative braking system adapted to inhibit parallel regenerative braking in a primary mode using the ABS signal and in a default mode using the drive shaft position sensor signal.

Abstract: A vacuum accumulator system includes a booster, a vacuum accumulator disposed in fluid communication with the booster and an engine disposed in fluid communication with the vacuum accumulator.

Abstract: An electric vacuum pump backup control system includes a brake on/off switch, a primary electric vacuum pump control interfacing with the brake on/off switch, a secondary electric vacuum pump control interfacing with the brake on/off switch and the primary electric vacuum pump control and an electric vacuum pump interfacing with the primary electric vacuum pump control.

Abstract: A system is provided for customized vehicle deceleration. The system includes a braking system and a brake pedal position sensor that transmits a brake pedal position signal. A user interface is configured for transmitting a profile selection signal in response to a user input. A controller is configured for receiving the brake pedal position signal, the profile selection signal and an available torque signal, the available torque signal being indicative of a braking system torque capability. The controller analyzes the profile selection signal, to select a brake profile from pre-existing data. The controller compares the brake pedal position signal to the brake profile to determine a deceleration value. The controller compares the deceleration value to the available torque signal to determine a torque command. The controller transmits a torque command signal to the braking system for initiating braking.