Abstract:
A vehicle parking brake system includes a power bridge. The power bridge is electrically connected to a primary power source and to a secondary power source. The power bridge has a first condition in which the primary power source is active in which the primary source is electrically connected to a parking brake actuator. The power bridge has a second condition in which the primary power source is not active in which the secondary power source is electrically connected to the parking brake.
Abstract:
A computer is programmed to, upon determining that a user has departed a vehicle, identify available parking spaces based at least in part on one of stored parking restrictions and vehicle sensor data. The computer is programmed to select one of the parking spaces based at least in part on a distance to a respective parking space and an environmental condition. The computer navigates the vehicle to park at the selected parking space.
Abstract:
A system for applying regenerative braking during high friction coefficient braking of a vehicle includes at least one controller; at least one braking sensor interfacing with the at least one controller; a vehicle powertrain interfacing with the at least one controller; a brake pedal interfacing with the at least one controller; vehicle friction brakes interfacing with the at least one controller; and the at least one controller applies anti-lock braking torque to the vehicle brakes and simultaneously applies regenerative braking torque to the vehicle powertrain responsive to input from the at least one braking sensor. A method for applying regenerative braking during high friction coefficient braking of a vehicle is also disclosed.
Abstract:
A brake pedal assembly for a vehicle having a brake pedal arm having an initial position and an adjustment subassembly configured to adjust the initial position. The brake pedal assembly is further provided with a preload spring configured to provide a preload force to the brake pedal arm and a preload adjustment cam in cooperation with the brake pedal arm. The adjustment subassembly and the preload spring are configured to change the preload force in response to a change in the initial position.
Abstract:
A vehicle regenerative braking control system includes a brake pedal; a brake pedal angle sensor interfacing with the brake pedal; a vehicle braking system interfacing with the brake pedal angle sensor, the vehicle braking system adapted to implement friction braking and regenerative braking responsive to receiving a brake pedal angle input signal from the brake pedal angle sensor; and at least one of a brake pedal switch and a brake master cylinder pressure sensor interfacing with the brake pedal and the vehicle braking system. The vehicle braking system is further adapted to implement friction braking and regenerative braking responsive to input from the at least one of a brake pedal switch and a brake master cylinder pressure sensor in the event that the vehicle braking system does not receive the brake pedal angle input signal from the brake pedal angle sensor. A regenerative braking control method is also disclosed.
Abstract:
A system and method for compensating for drive influences of a drive train of a vehicle, where the vehicle has a traction motor and a power steering system including a servomotor configured to provide torque to a vehicle steering rack, include commanding the servomotor to apply a compensation torque to the vehicle steering rack. The compensation torque is applied in response to a predicted drive influence caused by a regenerative braking torque.
Abstract:
A driver prompting braking system includes a detection device adapted to sense at least one object in front of the vehicle; a detection system interfacing with the detection device, the detection system adapted to detect the at least one object; and a brake coaching system interfacing with the detection system, the brake coaching system adapted to determine a brake application timing for an operator of the vehicle to avoid the object and optimize fuel economy of the vehicle. A driver prompting braking method is also disclosed.
Abstract:
A braking system includes a first hydraulic brake assembly associated with a first front wheel, a second hydraulic brake assembly associated with a second front wheel, a front EBB module operably coupled to the first and second hydraulic brake assemblies for primary operation of the first and second hydraulic brake assemblies, a first EMB assembly associated with a first rear wheel, a second EMB assembly associated with a second rear wheel, a controller operably coupled to the first and second EMB assemblies for primary operation of the first and second EMB assemblies, a first power network and a second power network providing redundant power supply to the system, and a bus network operably coupling both the EBB module and the controller to the first and second EMB assemblies so the EBB module can provide control of backup operation of the first and second EMB assemblies if the controller is inoperable.
Abstract:
A method for controlling brake pressure during a shift of a vehicle out of park may include determining that a first status condition is met when the vehicle is in park with an electric parking brake applied, determining that a second status condition is met when the vehicle is not moving, responsive to detecting a shift of the vehicle out of park when the first and second status conditions are both met, directing a build-up of brake pressure until a brake pressure target is reached, and holding the brake pressure at the brake pressure target until a release condition is met.
Abstract:
In a method of inferring a vehicle state for control of a vehicle component based on the vehicle state inference, the vehicle may include a first electromechanical brake module operably coupled to first wheel-end brakes of a first wheel and a second electromechanical brake module operably coupled to second wheel-end brakes of a second wheel. The method may include receiving an indication of vehicle speed, receiving an indication of vehicle voltage supply to determine whether an event trigger transition is detected based on a change in the vehicle voltage supply, determining a communication state of at least one of the first and second electromechanical brake modules responsive to the event trigger transition being detected, where the communication state is one of a connected state or a disconnected state, and initiating a state inference operation based on the indication of vehicle speed and detection of the event trigger transition.