Systems and methods for controlling high voltage systems for a marine vessel

Abstract

A power control system for controlling a power circuit of an electric marine propulsion system delivers power from at least one marine battery to a marine drive configured to propel a marine vessel. The power control system includes at least one interlock circuit electrically isolated from the power circuit. The interlock circuit includes a plurality of interlock circuit portions, each interlock circuit portion configured to indicate connectivity of a corresponding portion of the power circuit, a plurality of resistance elements each having a predetermined resistance value, including a resistance element associated with each of the interlock circuit portions, and a control system. The control system is configured to measure a local resistance of each of the plurality of interlock circuit portions so as to measure a plurality of local resistances throughout the interlock circuit, identify a fault condition out of a plurality of possible fault conditions based on the local resistance of each of the interlock circuit portions, identify a fault response based on the identified fault condition, and control the power circuit based on the fault response.

Dependencies are inferred from the claim text.