Systems and methods are provided for braking assistance for a vehicle. The systems include a sensor system, a controller configured to, by one or more processors: receive, from the sensor system, sensor data, detect a braking event of the vehicle, monitor a vehicle state of the vehicle including a deceleration rate of the vehicle, wherein the vehicle state and the deceleration rate is based on the sensor data, process the sensor data to determine whether the vehicle state will trigger activation of an antilock braking system (ABS), and output one or more control signals to command a braking system to reduce a braking torque applied to wheels at a rate sufficient to reduce compression of the front suspension system prior to a complete stop thereof in response to the deceleration rate satisfying a stopping criteria and a determination that the vehicle state will not trigger activation of the ABS.

A valve unit for an ABS system having a single hydraulic chamber configured to receive a brake fluid, with a delivery port for supplying the brake fluid to a brake caliper, and a passage to for letting the brake fluid from a master cylinder into the single hydraulic chamber is provided. A single piston, longitudinally movable within the single hydraulic chamber, has first transverse surfaces facing the delivery port and defining as a whole a first transverse area, second transverse surfaces facing away from the delivery port and defining as a whole a second transverse area greater than the first transverse area. A longitudinal cavity extends in the single piston establishing fluid communication between the first and second transverse surfaces, whereby displacement of the single piston towards the delivery port occludes the passage and increments the volume available for the brake fluid in the single hydraulic chamber.

A vehicle control system for a vehicle having a braking system and active suspension system is provided. The vehicle control system may be configured to adjust a normal component of a wheel force at one or more wheels of the vehicle to increase an average traction force at the one or more wheels during a braking event. The vehicle control system may adjust a normal component of a wheel force at one or more wheels based on reference road information, forward-looking road information, and/or vehicle sensor data.

An embodiment apparatus for complementing a braking force of a vehicle includes a driving unit configured to drive an autonomous drone, a braking complement system connected with the driving unit and configured to complement the braking force, and a controller configured to determine a braking complement condition of the vehicle and to drive the braking complement system based on the braking complement condition. An embodiment braking complement system includes a compressor, wherein the driving unit is configured to apply an electric driving force to the compressor, an air tank in which compressed air discharged from the compressor is stored, and a braking complement unit connected with a discharge end of the air tank.