Patent ID: 8072092
Filing Date: 2011-12-06
Classification: H02J

Abstract:
1. A vehicle electrical system, comprising: (a) a first generator coupled with two or more electrical subsystems, each of said electrical subsystems comprising at least one of a stored energy source and electrical load, via a means for isolating; (b) a second generator coupled with one of the two or more electrical subsystems, via a means for sequencing operative to introduce a change in voltage between the second generator and the one of the two or more electrical subsystems; (c) a first voltage regulator, coupled with the first generator, operative to sense two or more first-regulator-electrical-subsystems-sense voltages of the two or more electrical subsystems and regulate an output voltage of the first generator at a first regulation voltage in response to the highest voltage of the two or more first-regulator-electrical-subsystems-sense voltages; (d) a second voltage regulator, coupled with the second generator, operative to sense a second-regulator-generator-output-sense voltage of an output terminal of the second generator and regulate an output voltage of the second generator at the first regulation voltage in response to the second-regulator-generator-output-sense voltage; wherein the vehicle electrical system operates to electrically isolate the two or more electrical subsystems, to protect against overcharging the two or more electrical subsystems, and to provide electrical power to the two or more electrical subsystems sequentially from the first and second generators.