Patent ID: 7508315
Filing Date: 2009-03-24
Classification: G01R,G08B,H02H

Abstract:
1. A machine comprising: a chassis; at least one steering system connected to the chassis; an electrical system connected to the chassis; a signaling device operably coupled with said electrical system and including an electrical energy storage device, an alert mechanism and a normally open electrical switch disposed between said electrical energy storage device and said alert mechanism, said electrical switch having an open/closed state based at least in part on an electrical system voltage; said electrical system comprises a power supply including first and second input/output lines coupled with said signaling device; said electrical switch comprising a biased open transistor switch having a gate/base coupled with one of said input/output lines and being configured to close upon de-coupling from said power supply; said electrical energy storage device comprises at least one of a battery and a capacitor; said electrical switch comprises a p-channel FET disposed between said electrical energy storage device and said alert mechanism; and at least one pre-determined condition monitor and an electronic controller in communication therewith, said electronic controller being configured to selectively de-couple said signaling device from said power supply based on a control signal or a control signal failure between said electronic controller and said at least one pre-determined condition monitor.