Siemens Aktiengesellschaft

Alfred Hoss

Wolfgang Schindler

A circuit configuration has a radar equipment for determining a distance or a relative speed. The radar equipment continuously transmits frequency-modulated signals, at modulation rates of different size, depending on the speed of the vehicle in which the radar equipment is installed. A higher modulation rate produces better range resolution for a constant maximum analog frequency, which is advantageous particularly in the low speed range.

Circuit configuration having radar equipment for determining a distance

A radar method and a device for carrying out the method include estimating an azimuth angle of each target object from determined variables of distance or range, relative speed and relative acceleration after Kalman filtering and separating out target objects having a physically impossible behavior (tracking and prediction). That is used to determine which target objects are located on a roadway occupied by a vehicle and which are the most dangerous thereof. Indication, warning or action thresholds are determined as a function of driving behavior of the driver, road conditions and weather conditions. Indication, warning or action signals (in the brakes, throttle valve or gear shift of the vehicle) result if the thresholds are exceeded or undershot by the range, the relative speed and the relative acceleration.

Growing community of inventors

Hamberg, Germany

Alfred Hoss