Expandable Energy Storage Control System Architecture
First Claim
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1. A hybrid electric vehicle drive system, comprising:
- a motive energy subsystem;
a drive wheel propulsion assembly including at least one electric motor, the at least motor configured to drive the drive wheel propulsion assembly;
a first propulsion energy storage subsystem;
a second propulsion energy storage subsystem;
an energy storage DC bus electrically coupled to the first propulsion energy storage subsystem and the second propulsion energy storage subsystem, and configured transmit energy among the first propulsion energy storage subsystem and the second propulsion energy storage subsystem;
a first energy storage DC-to-DC converter interspersed between the first propulsion energy storage subsystem and the energy storage DC bus;
a second energy storage DC-to-DC converter interspersed between the second propulsion energy storage subsystem and the energy storage DC bus;
a propulsion DC bus configured to transmit energy among the motive energy subsystem, the drive wheel propulsion assembly, and the energy storage DC; and
,a bus-to-bus DC-to-DC converter interspersed between the energy storage DC bus and the propulsion DC bus.
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Abstract
A hybrid electric vehicle drive system comprises a first power bus electrically coupled to a motive power subsystem and a drive wheel propulsion assembly; a second power bus electrically coupled to the first power bus and a plurality of energy storage subsystems, wherein the first power bus is configured to allow electrical power to be transmitted among the motive power subsystem, the drive wheel propulsion assembly, and the second power bus, and wherein the second power bus is configured to allow electrical power to be transmitted among the plurality of energy storage subsystems and the first power bus.
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Citations
23 Claims
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1. A hybrid electric vehicle drive system, comprising:
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a motive energy subsystem; a drive wheel propulsion assembly including at least one electric motor, the at least motor configured to drive the drive wheel propulsion assembly; a first propulsion energy storage subsystem; a second propulsion energy storage subsystem; an energy storage DC bus electrically coupled to the first propulsion energy storage subsystem and the second propulsion energy storage subsystem, and configured transmit energy among the first propulsion energy storage subsystem and the second propulsion energy storage subsystem; a first energy storage DC-to-DC converter interspersed between the first propulsion energy storage subsystem and the energy storage DC bus; a second energy storage DC-to-DC converter interspersed between the second propulsion energy storage subsystem and the energy storage DC bus; a propulsion DC bus configured to transmit energy among the motive energy subsystem, the drive wheel propulsion assembly, and the energy storage DC; and
,a bus-to-bus DC-to-DC converter interspersed between the energy storage DC bus and the propulsion DC bus. - View Dependent Claims (2, 3, 4, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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5. (canceled)
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9. (canceled)
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19. A system controller installable in a hybrid electric vehicle and comprising a computer readable medium having computer executable program code embodied thereon, the computer executable program code configured to control power transmission by causing a hybrid electric vehicle drive system to perform the steps of:
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transmitting power generated at a motive power subsystem on a first power bus, wherein the first power bus is coupled to a drive wheel propulsion assembly and a second power bus; and transmitting power stored by a first energy storage subsystem on the second power bus, wherein the second power bus is coupled to the first power bus and a plurality of energy storage subsystems. - View Dependent Claims (21, 22, 23)
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20. (canceled)
Specification