An automated leading-vehicle message warning system for notifying a trailing vehicle of an unsafe traveling condition preferably includes a vehicle speedometer sensor and a vehicle brake system sensor. The warning system also may include a mechanism for determining whether a real-time traveling condition...http://www.google.fr/patents/US7859391?utm_source=gb-gplus-shareBrevet US7859391 - Auxiliary brake light system for automobiles and associated method
Auxiliary brake light system for automobiles and associated method
