logo

For the Inventor, By the Inventor

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 9738160 B1

PDFFull Text
Date of Patent:
Aug. 22, 2017

Filed:

Nov. 21, 2013

Fail-safe method and apparatus for high voltage parts in a hybrid vehicle

Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Su Hyun Bae, Daegu, KR;

Young Kook Lee, Seoul, KR;

Seong Yeop Lim, Seoul, KR;

Won Kyoung Choi, Gyeonggi-do, KR;

Sung Kyu Kim, Gyeonggi-do, KR;

Jin Hwan Jung, Gyeonggi-do, KR;

Mu Shin Kwak, Gyeonggi-do, KR;

Assignee:

Hyundai Motor Company, Seoul, KR;

Attorneys:

Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.

Peter F. Corless

Primary Examiner:

Jared Fureman

Assistant Examiner:

Aqeel Bukhari

Int. Cl.
CPC ...
B60L 11/18 (2006.01); B60L 3/00 (2006.01); B60L 3/04 (2006.01); B60L 7/14 (2006.01); B60L 11/12 (2006.01); B60L 11/14 (2006.01); B60L 15/00 (2006.01); B60L 15/20 (2006.01);
U.S. Cl.
CPC ...
B60L 3/0069 (2013.01); B60L 3/0092 (2013.01); B60L 3/04 (2013.01); B60L 7/14 (2013.01); B60L 11/123 (2013.01); B60L 11/14 (2013.01); B60L 11/1861 (2013.01); B60L 11/1868 (2013.01); B60L 15/007 (2013.01); B60L 15/20 (2013.01); B60L 15/2009 (2013.01); B60L 2210/12 (2013.01); B60L 2210/40 (2013.01); B60L 2240/12 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/441 (2013.01); B60L 2240/443 (2013.01); B60L 2240/547 (2013.01); B60L 2240/549 (2013.01); B60L 2260/24 (2013.01); B60L 2260/26 (2013.01); Y02T 10/645 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7044 (2013.01); Y02T 10/7066 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7233 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7275 (2013.01); Y02T 90/34 (2013.01);
Abstract

A fail-safe method and apparatus for high voltage parts in a hybrid vehicle is provided. In the fail-safe method, it is determined whether or not a high voltage main relay is turned off. Here, when the high voltage main relay is turned off, a voltage is charged into a direct current (DC) link using a counter electromotive force generated in a motor generator linked with a revolution of an engine. Voltage control is performed such that the voltage of the DC link is uniformly maintained using an inverter for the motor generator.

Find Patent Forward Citations

Loading…