A driver assistance system for automated longitudinal guidance of a motor vehicle includes a sensor system configured to identify an upcoming traffic scene, including locating road users situated ahead of the motor vehicle; and a control unit. The control unit is configured to carry out an automated longitudinal guidance of the motor vehicle depending on the upcoming traffic scene such that, in response to detecting that the upcoming traffic scene is a following-travel standstill situation, the motor vehicle is braked to a standstill at a target stopping distance from a road user situated ahead and identified as a target object. The control unit is also configured to detect a manual request to reduce the predefined target stopping distance. The control unit is further configured to reduce the target stopping distance to a reduced target stopping distance on the basis of the request.

An electric brake system includes at least a pair of braking apparatuses each configured to advance a piston for pressing a frictional member against a rotational member rotatable together with a wheel and configured to press the frictional member against the rotational member with use of an electric mechanism according to a braking request signal and hold a pressing force of the frictional member. The electric brake system further includes a control apparatus configured to control the electric mechanism of each of the brake apparatuses and diagnose the failed state in which an abnormality has occurred in each of the brake apparatuses according to the braking request signal. The control apparatus is configured to, when any one of the brake apparatuses is diagnosed as being in the failed state, prohibit the electric mechanism of the one of the brake apparatuses from operating while the vehicle is running.

An electric brake system includes at least a pair of braking apparatuses each configured to advance a piston for pressing a frictional member against a rotational member rotatable together with a wheel and configured to press the frictional member against the rotational member with use of an electric mechanism according to a braking request signal and hold a pressing force of the frictional member. The electric brake system further includes a control apparatus configured to control the electric mechanism of each of the brake apparatuses and diagnose the failed state in which an abnormality has occurred in each of the brake apparatuses according to the braking request signal. The control apparatus is configured to, when any one of the brake apparatuses is diagnosed as being in the failed state, prohibit the electric mechanism of the one of the brake apparatuses from operating while the vehicle is running.

A brake pedal is operated by a pedal force of a driver. A sensor is capable of detecting a stroke amount of the brake pedal. A brake circuit generates braking force to apply a brake to a vehicle by applying hydraulic pressure to wheel cylinders provided to respective wheels. An electronic control device controls the braking force generated by the brake circuit based on an output signal from the sensor and a state of the vehicle. The electronic control device executes predetermined braking force control under which the braking force generated by the brake circuit is set to be predetermined braking force, when the stroke amount of the brake pedal is between a first threshold and a second threshold larger than the first threshold.

A vehicle includes: a brake pedal to produce vehicle brake pressure; a trailer brake valve to output a variable trailer brake pressure to a trailer brake of a trailer, the trailer brake valve configured to output the variable trailer brake pressure as a function of the vehicle brake pressure; and an electronic control unit operably coupled to the trailer brake valve and configured to: output a first valve signal to the trailer brake valve to output the trailer brake pressure according to a first vehicle brake pressure curve; and output a second valve signal to the trailer brake valve to output the trailer brake pressure according to a second vehicle brake pressure curve responsively to determining a curve adjustment condition exists. The first vehicle brake pressure curve and/or the second vehicle brake pressure curve is not a single straight line curve.

The invention provides methods and systems for controlling speed of an aircraft during an autonomous pushback maneuver, i.e. under the aircraft's own power without a pushback tractor. The method includes applying a torque to at least one landing gear wheel of the aircraft, the torque being in a direction opposite to the backwards rolling direction of rotation of the landing gear wheel. The torque applied does not exceed a limit for ensuring aircraft longitudinal stability. For longitudinal stability the torque applied should not cause the aircraft to risk a tip-over event.

The electronic control unit is configured to, when braking by the braking device is performed in a deceleration state where the coasting deceleration is equal to or less than a threshold value, distribute target braking force corresponding to requested deceleration to front-wheel braking force and rear-wheel braking force in accordance with a front-rear distribution ratio determined from the requested deceleration and the braking force distribution characteristics, and when the braking is performed in a deceleration state where the coasting deceleration is higher than the threshold value, distribute corrected target braking force to the front-wheel braking force and the rear-wheel braking force in accordance with the front-rear distribution ratio determined from total deceleration and the braking force distribution characteristics, the corrected target braking force being a sum of the target braking force and braking force that generates the coasting deceleration.

The electronic control unit is configured to, when braking by the braking device is performed in a deceleration state where the coasting deceleration is equal to or less than a threshold value, distribute target braking force corresponding to requested deceleration to front-wheel braking force and rear-wheel braking force in accordance with a front-rear distribution ratio determined from the requested deceleration and the braking force distribution characteristics, and when the braking is performed in a deceleration state where the coasting deceleration is higher than the threshold value, distribute corrected target braking force to the front-wheel braking force and the rear-wheel braking force in accordance with the front-rear distribution ratio determined from total deceleration and the braking force distribution characteristics, the corrected target braking force being a sum of the target braking force and braking force that generates the coasting deceleration.

An agricultural vehicle-trailer-combination includes a traction vehicle including an engine and at least one ground engagement mechanism. A trailer is coupled to the traction vehicle. A service brake connected to the at least one ground engagement mechanism. The combination includes a sensor and a control unit disposed in communication with the sensor, wherein a slip or a slip gradient on the ground engagement mechanism is sensed between the ground engagement mechanism and the ground surface. A trailer brake disposed on the trailer is adjustably controlled by the control unit. The trailer brake is adjustably controlled when the service brake of the traction vehicle is actuated, and the trailer is braked by the trailer brake as a function of the slip or the slip gradient when the slip reaches or exceeds a predeterminable slip braking value or the slip gradient reaches a predeterminable slip gradient braking interval.

A local control unit for a brake system is described. The control unit serves to actuate an electromechanical brake of the brake system of a wheel and according to one exemplary embodiment has a first connection for a main power supply and a second connection for a generator which is coupled to the wheel and which provides a standby power supply for the control unit.