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US 10,369,887 B2Granted
Inverter system controller power optimization
AssigneeFord Global Technologies, LLC
InventorJaswant Singh Garcha
Life of this patent
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Abstract
An inverter for a vehicle includes a power controller and gate drive board (GDB) electrically in series, the controller including logic circuitry configured to, responsive to presence of an ignition signal, permit flow of low voltage power through the controller to the GDB to activate the GDB, and responsive to presence of a wake-up signal, but not the ignition signal, prevent flow of low voltage power through the controller to the GDB.
Claims18
An inverter for a vehicle comprising:
- a power controller and gale drive board (GDB) electrically in series, the controller including logic circuitry configured to,
- responsive to presence of an ignition signal, permit flow of low voltage power through the controller to the GDB to activate the GDB, and
- responsive to presence of a wake-up signal, but not the ignition signal, prevent flow of low voltage power through the controller to the GDB and, during the preventing, permit flow of low voltage power to energize a coil of a contactor to close the contactor.
A method comprising:
- responsive to presence of an ignition signal, by a power controller of an inverter, permitting flow of low voltage power through the controller to a gate drive board (GDB) and a resolver-to-digital converter to activate the GDB and the converter, each of the GDB and the converter being electrically in series with the controller, and
- responsive to presence of a wake-up signal, but not the ignition signal, preventing flow of low voltage power through the controller to the GDB and the converter and, during the preventing, permitting flow of low voltage power to energize a coil of a contactor to close the contactor.
A system for a vehicle comprising:
- an inverter including a gate drive board (GDB) and a power controller, the controller including logic circuitry configured to,
- responsive to detecting an ignition signal, permit flow of low voltage power to the GDB to activate the GDB, and
- responsive to receiving a wake-up signal, but not the ignition signal, prevent flow of power to the GDB and permit flow of low voltage power to energize a coil of a contactor to close the contactor.
Dependencies are inferred from the claim text.