A method for controlling a driver assistance system is provided, as is a corresponding driver assistance system and a computer program product.

When a vehicle experiences an instability event, an instability event trigger (e.g., a failed modulator, unexpected yaw or lateral acceleration, unexpected steering wheel position change, etc.) is monitored and the magnitude thereof is compared to a corresponding predetermined threshold above which corrective action is initiated. Depending on the magnitude and type of instability trigger, one or more wheel ends are identified as candidates for brake activation. Braking force at the identified wheel ends is gradually increased until the vehicle becomes stable or comes to a stop.

The present embodiments relate to a vehicle control device and method, and a vehicle system. The vehicle control device may include a determinator determining a road surface condition based on vehicle driving information and determining whether to brake a vehicle based on a result of determining the road surface condition and a vehicle controller controlling a braking device according to a result of determining whether to brake the vehicle by the determinator and controlling a steering device based on control of the braking device.

The vehicle behavior control device comprises a brake control system (18) capable of applying different braking forces, respectively, to right and left road wheels of a vehicle (1). The vehicle behavior control device further comprises: a steering angle sensor (8); a vehicle speed sensor (10); a yaw rate sensor (12); and a yaw moment setting part (22) in PCM (14) configured to decide a target yaw rate of the vehicle based on a steering angle and a vehicle speed, and set, based on a change rate of a difference between an actual yaw rate and the target yaw rate, a yaw moment oriented in a direction opposite to that of the actual yaw rate of the vehicle, as a target yaw moment, whereby the brake control system can regulate the braking forces of the road wheels so as to apply the target yaw moment to the vehicle.

A method for determining a safety-critical yawing motion of a vehicle includes comparing a specification signal representing an ascertained setpoint yaw rate of the vehicle for an anticipated trajectory of the vehicle to a measuring signal representing an instantaneous yaw rate of the vehicle measured based on an actual trajectory of the vehicle, thereby generating a comparison signal; checking whether an amplitude of the comparison signal exceeds a first threshold value and whether a frequency of the comparison signal exceeds a second threshold value; and, in response to the amplitude exceeding the first threshold and the frequency exceeding the second threshold, outputting a yawing-motion signal indicating presence of the safety-critical yawing motion of the vehicle.

A minimum risk maneuver brake system for a heavy-duty vehicle is described. The brake system comprising a first axle comprising a left wheel braking device and a right wheel braking device, where the braking devices are configured to apply a pre-determined difference in brake torque over the axle in response to a brake signal.

A method for controlling a driver assistance system is provided, as is a corresponding driver assistance system and a computer program product.

A method is for determining a steering roll radius of a vehicle. The method includes the following steps: during a journey, initiating an asymmetrical braking maneuver on a steered axle of the vehicle, in which a first braking force is supplied to a first wheel of the steered axle, which is greater than a second braking force supplied to the other wheel of the steered axle, during the braking maneuver, detecting a steering command signal input from the driver or a vehicle system and a steering torque applied to the wheels of the braked axle, evaluating the asymmetrical braking maneuver as a function of determined data, determining at least a sign of the steering roll radius of at least the first wheel as a function of the evaluation.

A method for the automated braking and/or steering of a vehicle uses at least one sensor system for detecting the vehicle's surroundings, a potential collision object in the vehicle's surroundings, and a relative speed of the vehicle relative to the potential collision object. The activation and/or the sequence of an automated steering intervention and/or an automated braking intervention is determined based on the relative speed. The braking intervention is activated at first when the relative speed is below or equal to a predefined threshold, and the steering intervention is activated at first when the relative speed is above the predefined threshold.

A steering control device is configured to control a steering of a vehicle having at least one piloted actuator associated with a system for steering a wheel of the vehicle and a piloted actuator associated with a decoupled braking system at a wheel of the vehicle. The steering control device includes at least one control unit. The control unit is configured to recover at least one value characteristic of the travel of the vehicle and to issue a control instruction to the at least one piloted actuator according to the recovered value(s). The control unit includes a calculation module in which a model of a lateral dynamic behavior of the vehicle frame is implemented. At least one specific physical quantity of the lateral dynamic behavior is expressed according to the specific drifts of each set of front wheels and rear wheels of the vehicle.