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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 8766653 B1

PDFFull Text
Date of Patent:
Jul. 01, 2014

Filed:

Mar. 15, 2011

Measuring device for measuring insulation resistance of an electric vehicle

Applicants:

Chia-cheng Tu, Lugong, TW;

Jia-sing Hsu, Lugong, TW;

Inventors:

Chia-Cheng Tu, Lugong, TW;

Jia-Sing Hsu, Lugong, TW;

Assignee:

Automotive Research & Testing Center, Lugong, Changhua County, TW;

Attorney:

Marsh Fischmann & Breyfogle LLP

Primary Examiner:

Patrick Assouad

Assistant Examiner:

Lamarr Brown

Int. Cl.
CPC ...
G01R 27/08 (2006.01); G01R 27/18 (2006.01); G01R 31/00 (2006.01); G01R 31/02 (2006.01); G01R 31/36 (2006.01); G01R 31/14 (2006.01);
U.S. Cl.
CPC ...
G01R 27/08 (2013.01); G01R 27/18 (2013.01); G01R 31/006 (2013.01); G01R 31/025 (2013.01); G01R 31/36 (2013.01); G01R 31/005 (2013.01); G01R 31/14 (2013.01);
Abstract

A measuring device for measuring insulation resistance of an electric vehicle includes a measuring unit, a voltage detecting unit, and a control unit. The measuring unit includes a first tap, a second tap, a switch, and a measuring resistor. The first tap is to be electrically coupled to a high potential side of a high voltage system. The second tap is to be electrically coupled to a ground side of a low voltage system. The switch and the measuring resistor are connected in series between the first tap and the second tap. The voltage detecting unit is for detecting a voltage formed between the first tap and the second tap. The control unit is operable for controlling ON and OFF states of the switch, and is configured to determine the high potential insulation resistance and the low potential insulation resistance after operating the switch in the ON and OFF states.

Find Patent Forward Citations

Tu, Chia-Cheng. (2014). Measuring device for measuring insulation resistance of an electric vehicle (U.S. Patent No. 8766653). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8766653

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