Techniques of braking a trailer with a trailer braking system. In one example, a controller receives a brake request from a vehicle to apply the trailer braking system, receives a plurality of wheel speed signals from a plurality of wheel speed sensors, and determines a velocity of the trailer based on the plurality of wheel speed signals. The controller determines a wheel speed of one of a plurality of wheels based on one of the plurality of wheel speed signals, compares the velocity of the trailer to the wheel speed to obtain a difference value, and determines that one of the plurality of wheels is unstable when the difference value exceeds a threshold. A braking signal to reduce a braking force on one of the plurality of wheels is generated when one of the plurality of wheels is unstable and when the brake request is received.

A modular EAB system that reduces the number of individualized modules but provides the desired functionality using a configuration module that is coupled to a plurality of brake system control modules and has a receptacle interface configured to engage a series of modular sections that can be selected from a variety of options to perform dedicated air brake functions. The dedicated air brake functions included comprise brake pipe cutout, equalizing reservoir backup, brake pipe emergency, automatic flow calibration, dead engine regulator, dynamic brake interlock, emergency limiting valve regulation, dynamic brake interlock and emergency limiting valve regulation, 20 pipe back up, and brake cylinder cutout.

An electric brake device selectively using, based on requests, a control scheme that reduces torque variation and a control scheme that maximizes a torque to provide a quiet operation with smaller torque variation for prioritizing Noise Vibration Harshness and a high torque operation or high output operation for prioritizing torque or output. A motor current calculator selectively uses an output prioritizing control scheme that prioritizes a torque output and a torque variation suppressing control scheme that prioritizes smaller torque variation. An output requirement determiner calculates a degree of importance of suppressing torque variation of an electric motor, based on one or both of a braking request and a travel condition of a vehicle. In accordance with this determination result, the motor current calculator selectively uses the output prioritizing control scheme and the torque variation suppressing control scheme.

An electric brake device selectively using, based on requests, a control scheme that reduces torque variation and a control scheme that maximizes a torque to provide a quiet operation with smaller torque variation for prioritizing Noise Vibration Harshness and a high torque operation or high output operation for prioritizing torque or output. A motor current calculator selectively uses an output prioritizing control scheme that prioritizes a torque output and a torque variation suppressing control scheme that prioritizes smaller torque variation. An output requirement determiner calculates a degree of importance of suppressing torque variation of an electric motor, based on one or both of a braking request and a travel condition of a vehicle. In accordance with this determination result, the motor current calculator selectively uses the output prioritizing control scheme and the torque variation suppressing control scheme.

A driver brake valve for a compressed air brake system of a commercial vehicle is configured to be controlled by a brake pedal and is further configured to output an analog driver braking pressure and an electrical sensor desired signal in dependence upon the actuation of the brake pedal. The driver brake valve includes a compressed air input configured to connect to a system pressure, a compressed air output configured to connect to a brake control line, a sensor configured to determine an actuation of the brake pedal, a characteristic curve storage device configured to store characteristic curve data, and a determining device. The sensor is configured to generate an actuating signal in dependence upon the actuation of the brake pedal. The determining device is configured to generate a sensor desired signal from the actuating signal in dependence upon the characteristic curve data.

A braking force control device includes a target acceleration calculation unit that calculates a first target acceleration based on an acquired operation amount of an accelerator pedal, a powertrain capability acquisition unit that acquires a braking force that is generable by a powertrain, and an instruction unit that instructs generation of braking forces in the powertrain and a brake. The instruction unit is configured to, when a first braking force for achieving the first target acceleration is equal to or less than the braking force that is generable by the powertrain, instruct a controller of the powertrain to generate the first braking force, and when the first braking force is larger than the braking force that is generable by the powertrain, instruct the controller of the powertrain to generate the braking force that is generable by the powertrain.

Apparatus and associated methods relate to controlling a brake mechanism during braking operation to provide near-maximal braking power. Maximal braking power occurs at when the wheel slip has a target value. Wheel slip can be monitored during braking operation so as to be used in control the brake mechanism to operate at the maximal braking power. The braking power is modulated so as to dither the braking power about a nominal braking power. The monitored wheel slip will have a dither component in response to the dithering of the braking power. A volatility of the dither component of the monitored wheel slip can be indicative of nominal braking power proximity to the maximal braking power. A nominal brake signal can be generated so as to change the nominal braking power in the direction of the maximal braking power based on the volatility of the dither component of the monitored wheel slip.

The present invention provides a vehicle control device that can reduce the delay in the deceleration response of a vehicle to a deceleration command. The present invention modifies the distribution ratio of brake fluid pressure between front brakes and rear brakes on the basis of lateral motion information, vehicle information, and a collision risk or a traveling scene obtained from information pertaining to the external surroundings. The brake fluid pressure is distributed to only one of the front brakes or the rear brakes.

A method for braking a vehicle may include performing a first anti-locking brake system operation when a bump parameter of the vehicle exceeds a predetermined bump parameter threshold. A first braking force may be applied to each wheel, the first braking force being controlled such that a slip rate of each wheel lies within a predetermined first range. The method may include performing a second anti-locking brake system operation when the bump parameter is below the predetermined bump parameter threshold and when a slip rate of one or more of the wheels exceeds a predetermined slip rate threshold, including applying a second braking force to each wheel, wherein the second braking force is controlled such that the slip rate of each wheel is set so that the yaw rate of the vehicle lies within a predetermined yaw rate range.

A method for operating a brake system with an automated parking brake for a motor vehicle, includes detecting a defined fault. The method further includes activating a parking mode of the parking brake automatically when the defined fault is detected. The automated parking brake is operable in different operating modes, a first operating mode corresponding to a drive mode and a second operating mode corresponding to the parking mode.