Torque-equalizing fault response for loss of low voltage DC electrical power in electric vehicle

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12240332
APP PUB NO 20230271503A1
SERIAL NO

18195568

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Importance

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Abstract

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An illustrative dual power inverter module includes a detection circuit configured to detect loss of low voltage DC electrical power supplied to a controller for a first power inverter and a second power inverter of a drive unit for an electric vehicle. A first backup power circuit is associated with the first power inverter and a second backup power circuit is associated with the second power inverter. Each backup power circuit is configured to convert high voltage DC electrical power to low voltage DC electrical power responsive to detection of loss of low voltage DC electrical power supplied to the controller. Three-phase short circuitry is configured to apply a same fault action to the first power inverter and the second power inverter responsive to detection of loss of low voltage DC electrical power supplied to the controller, wherein the same fault action includes applying equalized torque to each axle operatively coupled to the drive unit.

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Patent Owner(s)

  • RIVIAN IP HOLDINGS, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Breese, Richard M Los Angeles, US 6 36
Hiti, Silva Redondo Beach, US 133 1797
Schulz, Steven E Torrance, US 131 2384
Tang, David Rancho Cucamonga, US 71 898

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