A brake pedal actuation sensor includes an optical coupler. In a preferred embodiment: the optical sensor is carried by a housing; a shutter is provided to interrupt the optical coupling according to the distance between the housing and a bearing; the shutter is carried by the bearing; and the distance...http://www.google.es/patents/US5217280?utm_source=gb-gplus-sharePatente US5217280 - Pressure sensitive signal device for vehicle brake pedal
Pressure sensitive signal device for vehicle brake pedal
