Patent ID: 6650983
Filing Date: 2003-11-18
Classification: B60G,B60R,G01S

Abstract:
A pre-crash sensing system for a source vehicle having a source vehicle length and a source vehicle width coupled to a countermeasure system comprising:an object sensor generating an object distance signal and object relative velocity signal and an object classification signal; and a source vehicle speed sensor generating a source vehicle speed; a controller coupled to the object sensor, said controller determining an object length and object width from the classification signal, said controller determining a danger zone based on the source vehicle length, source vehicle width and object length and object width, determining a source vehicle time interval corresponding to the time the source vehicle is within said danger zone, determining an object vehicle time interval corresponding to the time the object vehicle is within said danger zone, determining a point of impact in response to the object time interval and the source vehicle time interval, and said controller activating the countermeasure system in response to the point of impact.