DIRECTION/DISTANCE SENSING VEHICLE FUNCTION CONTROL SYSTEM

摘要

A system for automatically and simultaneously controlling one or more vehicl e functions by detecting the direction of movement of and the distance travele d by the vehicle. The control system includes an electronic sensor (15) mounte d on a selected one of the vehicle axles (11) adjacent to and facing an anti- lock braking system tone ring of a selected one of the wheel hubs mounted on the axle. The sensor is electrically connected to an electronic control unit (30), which in turn is electrically connected to a vehicle function actuatio n device (40) such as a lift axle solenoid or back-up alarm actuation device. The sensor transmits direction and distance information to the electronic control unit based on the movements of a plurality of teeth formed on the to ne ring. The control system is a stand-alone system that is free of interfacing with other vehicle systems, such as the anti-lock braking system.