An object of the invention is to provide a brake control system for a vehicle, according to which a comfortable feeling for a vehicle deceleration is obtained. An index of evaluating a vehicle distance change is calculated based on a relative vehicle speed, wherein the index has a characteristic feature...http://www.google.com.tw/patents/US7395144?utm_source=gb-gplus-share專利 US7395144 - Brake assisting control system using a distance index