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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10686385 B1

PDFFull Text
Date of Patent:
Jun. 16, 2020

Filed:

Mar. 08, 2018

Apparatus to realize fast battery charging and motor driving for electric vehicles using one ac/dc converter

Applicant:

Hella Gmbh & Co. Kgaa, Lippstadt, DE;

Inventors:

Alan Wayne Brown, Canton, MI (US);

Hua Bai, Flint, MI (US);

Assignee:

HELLA GmbH & Co. KGaA, Lippstadt, DE;

Attorney:

Warner Norcross + Judd LLP

Primary Examiner:

Bickey Dhakal

Int. Cl.
CPC ...
H02M 3/335 (2006.01); B60L 15/00 (2006.01); B60L 53/22 (2019.01); B60L 53/24 (2019.01); H02P 27/06 (2006.01); H02M 1/00 (2006.01); H02J 7/14 (2006.01); H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02M 1/08 (2006.01); H02M 1/42 (2007.01); B60L 50/51 (2019.01);
U.S. Cl.
CPC ...
H02M 3/33584 (2013.01); B60L 15/007 (2013.01); B60L 53/22 (2019.02); B60L 53/24 (2019.02); H02J 7/00 (2013.01); H02J 7/0068 (2013.01); H02J 7/022 (2013.01); H02J 7/14 (2013.01); H02M 1/083 (2013.01); H02M 1/4216 (2013.01); H02P 27/06 (2013.01); B60L 50/51 (2019.02); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); H02J 2207/20 (2020.01); H02M 2001/0058 (2013.01); H02P 2201/07 (2013.01);
Abstract

An apparatus includes a controller, a switching block, and a three-phase bidirectional AC/DC converter. The switching block has a first interface connected to a power grid, a second interface connected to an electric motor, and a third interface connected to the three-phase bidirectional AC/DC converter that includes first, second, and third single-phase AC/DC conversion modules, and which have inputs and outputs joined at an output node, and a respective transformer configured to provide electrical isolation. In a first mode of operation, the switching block connects the power grid to the AC/DC converter for charging a battery connected to the output node and disconnects the electric motor. In a second mode of operation, the switching block disconnects the power grid and connects the electric motor to the AC/DC converter which is controlled to convert DC power drawn from the battery to energize the electric motor.

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