Patent ID: 11870249
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 14:
15. A method of controlling an electrical power system for a vehicle, comprising:
rectifying alternating current (AC) from an electrical generator to direct current (DC) with a rectifier;
providing the DC from the rectifier to a DC bus that includes a positive rail configured to provide a positive DC voltage, a negative rail configured to provide a negative DC voltage, and a ground rail;
selectively charging energy storage devices of a plurality of energy storage modules (ESMs) from the DC bus;
selectively discharging the energy storage devices of the plurality of ESMs onto the DC bus to power one or more DC loads of a vehicle, wherein each ESM has an independent connection to the DC bus through a respective DC/DC converter, and wherein the energy storage device of a first ESM of the plurality of ESMs comprises a first type of energy storage device, and the energy storage device of second ESM of the plurality of ESMs comprises a second type of energy storage device that is different from the first type of energy storage device; and
utilizing a shared system controller to perform said selectively charging, selectively discharging, and at least one of:
performing said rectifying utilizing an active rectifier as the rectifier; and
controlling an output of the generator by utilizing a generator control unit that is separate from the rectifier;

wherein the plurality of ESMs includes a pair of ESMs that includes the first ESM and a third ESM of the plurality of ESMs connected in a series stacked configuration such that the DC/DC converter of the first ESM and the DC/DC converter of the third ESM are connected to each other through a path separate from the DC bus, the first ESM charges from and discharges onto the positive rail, and the third ESM charges from and discharges onto the negative rail.