Patent ID: 8340845
Filing Date: 2012-12-25
Classification: B63H,B63J,F02N

Abstract:
1. A theft deterrent apparatus for a marine vessel which includes a propulsion device having, as a drive source, an engine coupled to a starter and a power generator, the theft deterrent apparatus for marine vessel comprising: an authentication unit arranged to operate by receiving power from a battery that is arranged to supply power to the starter and accumulate power generated by the power generator; an operation control unit arranged to allow operation of the propulsion device if authentication by the authentication unit does succeed and prohibit operation of the propulsion device if authentication by the authentication unit does not succeed; a fault detection unit arranged to detect a fault of the authentication unit; and a fault detection control unit arranged to make a provisional fault judgment when the fault detection unit detects the fault of the authentication unit before completion of engine starting by the starter, and then make the fault detection unit perform the fault detection again after the completion of engine starting by the starter; wherein the operation control unit is arranged to allow starting of the propulsion device if the provisional fault judgment is made by the fault detection control unit.