Device and method for current flow control for dual battery vehicle architecture

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United States of America Patent

PATENT NO 9682672
SERIAL NO

14333659

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Abstract

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Described herein is a device and method for current flow control for dual battery vehicle architecture. The dual battery vehicle architecture includes a second energy source that is used to support electrical loads, such as radio and navigation systems, during re-cranking in stop-start situations. A quasi-diode device is configured to effectively split a main battery and starter circuit from the rest of the vehicle electrical system including the second energy source. The quasi-diode device includes a plurality of field effect transistors (FET) that conducts current in both directions between the main battery and starter circuit and the rest of the vehicle electrical system when the FETs are turned on and conducts current only from the main battery and starter circuit to the rest of the vehicle electrical system when the FETs are turned off, i.e. when re-cranking is occurring during a start-stop situation.

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Patent Owner(s)

  • FLEXTRONICS AP, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Grills, Reginald C Oshawa, CA 14 177
Tofilescu, Pompilian Toronto, CA 8 37

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