RADAR BRAKE SYSTEM

This paper reports on a new concept of radar brake system with an automatic braking function. Similar systems developed for collision-avoidance have been reported. Their method of operation is based on the timing required to avoid collisions solely by braking function. However, the distance between two cars that is required to avoid collision by using steering is shorter than that required by braking alone. Thus, a serious unresolved problem is the driver's sense that the braking function alone can lead to inappropriate timing. For instance, in the case where the driver recognizes an on-coming obstacle and is able to avoid it by using steering, the system operates prior to his action and the driver is disturbed. This system consists of three key technologies: (1) Scanning laser radar sensor; (2) Algorithm for judging potentiality of collision; (3) Control-by-wire brake system.