Abstract: An intergated secruity, tip-over, and turn signal system for a motorcycle. The system provides multiple-functions with one control unit and a simplified wiring network. The system provides vehicle turn signal control including automatic turn-off of turn signal lamps at the end of a turn. The systems monitors the lateral forces acting on the motorcycle and disables the turn signal lamps, starter system, and fuel system when a tip-over condition is detected. For theft deterrence and prevention, the system allows a rider to disable the vehicle starter and ignition systems while the vehicle is parked. Tamper sensors in the system activate turn signals and an audible alarm if tampering is detected.

Abstract: A tilt angle sensor has a body which includes a V-shaped cavity defined by a pair of inclined surfaces which intersect to define a lower end. A roller is disposed in said cavity. A sensing circuit is associated with the cavity to sense the presence of the roller in the lower end of the cavity. The sensing circuit initiates a first signal when the roller is displaced from the lower end of the cavity. A timing circuit is coupled to the sensing circuit for commencing a timing cycle upon the occurrence of the first signal and for providing a second signal after a predetermined time delay. A latch mechanism coupled to the timing circuit latches an output device upon the occurrence of the second signal.