Bayerische Motoren Werke Aktiengesellschaft

Falk Langer

Maria-Christina Laiou

Alexander Meske

Walter Kagerer

The invention relates to a method for controlling speed and/or distance in motor vehicles having distance-related longitudinal control systems, wherein during clear driving, a clear drive acceleration value is set to reach a preset speed, and while following a detected target object, a following acceleration value is set to maintain a preset distance from the target object, and wherein if the target object is lost during a following drive operation, a transition acceleration value is set. According to the invention, the transition acceleration value is set for the duration of a time interval, which is dependent on the speed at the time of the target object loss.

Method for controlling speed and/or distance in motor vehicles

A method ensures the standstill of a motor vehicle. Before reaching the standstill, an electronic control unit checks whether a predefined inclination threshold is exceeded, whether the velocity has fallen below a predefined travel velocity threshold, and whether there is a negative vehicle acceleration. If all three conditions exist simultaneously, an increased setpoint braking torque is predefined until the motor vehicle reaches the standstill.

Method and device for ensuring the standstill of a motor vehicle

The invention relates to a method for determining the vehicle speed of a motor vehicle, wherein a provisional first speed value is determined for high speeds and a provisional second speed value is determined for low speeds and the vehicle speed is determined as a function of the determined provisional first speed value either from the provisional first speed value or from the provisional second speed value, or from a combination of the first and second speed values.

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Marienberg, Germany

Falk Langer