System and method for sequentional electrical power delivery from two generators in a vehicle electrical system
First Claim
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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.
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Abstract
A vehicle electrical system comprises two generators coupled with one or more electrical subsystem, each of which includes at least one of a stored energy source and electrical load. Each generator is regulated via its associated voltage regulator at a common regulation voltage. Sequential electrical power delivery from the generators is achieved via a sequencing means. Where two or more electrical subsystems are present, electrical isolation is achieved via an isolating means. Overcharge protection is achieved by sensing and responding to the highest voltage of the two or more electrical subsystems.
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Citations
37 Claims
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1. A vehicle electrical system, comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A vehicle electrical system, comprising:
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(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 a first-regulator-electrical subsystems-sense voltage of one 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 first-regulator-electrical subsystems-sense voltage; (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 and to provide electrical power to the two or more electrical subsystems sequentially from the first and second generators.
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23. A method for electrically isolating, protecting against overcharging, and providing electrical power, sequentially from a first and second generators, to two or more electrical subsystems in a vehicle electrical system, wherein each of said electrical subsystems comprising at least one of a stored energy source and electrical load, said first generator coupled with the two or more electrical subsystems via a means for isolating, said 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, said method comprising:
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(i) sensing two or more first-regulator-electrical-subsystems-sense voltages of the two or more electrical subsystems, via a first voltage regulator coupled with the first generator; (ii) regulating 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, via the first voltage regulator; (iii) sensing a second-regulator-generator-output-sense voltage of an output terminal of the second generator, via a second voltage regulator coupled with the second generator; and (iv) regulating an output voltage of the second generator at the first regulation voltage in response to the second-regulator-generator-output-sense voltage, via the second voltage regulator. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method for electrically isolating and providing electrical power, sequentially from a first and second generators, to two or more electrical subsystems in a vehicle electrical system, wherein each of said electrical subsystems comprising at least one of a stored energy source and electrical load, said first generator coupled with the two or more electrical subsystems via a means for isolating, said 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, said method comprising:
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(i) sensing a first-regulator-electrical subsystems-sense voltage of one of the two or more electrical subsystems, via a first voltage regulator coupled with the first generator; (ii) regulating an output voltage of the first generator at a first regulation voltage in response to the first-regulator-electrical subsystems-sense voltage, via the first voltage regulator; (iii) sensing a second-regulator-generator-output-sense voltage of an output terminal of the second generator, via a second voltage regulator coupled with the second generator; and (iv) regulating an output voltage of the second generator at the first regulation voltage in response to the second-regulator-generator-output-sense voltage, via the second voltage regulator.
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Specification