| 摘要 |
A method for detecting critical driving situations of motor vehicles, in particular for avoiding collisions with an object located in front of a driver's own vehicle, has the following steps: sensing a current vehicle acceleration and a current vehicle speed of the driver's own vehicle; predefining an acceleration profile which is dependent on driving variables of the driver's own vehicle; adopting a time profile of an acceleration of the driver's own vehicle which is to be predicted on the basis of the current acceleration thereof; determining a travel profile of the driver's own vehicle from the chronological profile of the acceleration which is to be predicted; sensing a current distance and a current relative speed of an object located in front of the driver's own vehicle; calculating the current absolute speed of the object and the absolute current acceleration of the object; adopting a chronological profile of an acceleration of the object which is to be predicted on the basis of the current acceleration thereof; determining a travel profile of the object from the chronological profile of the acceleration which is to be predicted; comparing the travel profile of the driver's own vehicle with the travel profile of the object; and if the two travel profiles intersect, determining an anticipated collision time of the driver's own vehicle with the object; defining a time before the anticipated collision time, comparing this time with the specific anticipated collision time; and outputting a warning to the driver of the driver's own vehicle if the anticipated collision time is before the defined time. |
