Variable voltage convert system with reduced bypass diode conduction

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United States of America Patent

PATENT NO 9931944
SERIAL NO

15077495

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Abstract

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A vehicle powertrain includes a bypass diode and a controller. The bypass diode is configured to clamp an inverter DC terminal voltage to a battery voltage. The controller is configured to, while the terminal voltage is within a predetermined range of the battery voltage, maintain off a lower IGBT of a DC-DC converter while in a propulsion mode, and modulate the lower IGBT to increase the terminal voltage to maintain the bypass diode reverse biased while in a regenerative mode.

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Patent Owner(s)

Patent OwnerAddress
FORD GLOBAL TECHNOLOGIES LLC330 TOWN CENTER DRIVE SUITE 800 DEARBORN MI 48126

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alam, Mohammed Khorshed Dearborn, US 23 164
Chen, Lihua Northville, US 126 604
Xu, Fan Novi, US 133 528
Zhou, Yan Canton, US 2120 9767

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