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.:
Date of Patent:
Aug. 08, 2017
Filed:
Jan. 23, 2014
Applicant:
Doosan Infracore Co., Ltd., Incheon, KR;
Inventor:
Eun Soo Jung, Gyeonggi-do, KR;
Assignee:
Doosan Infracore Co., Ltd., Incheon, KR;
Primary Examiner:
Int. Cl.
CPC ...
B60R 16/033 (2006.01); F02D 29/06 (2006.01); E02F 9/12 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
B60R 16/033 (2013.01); E02F 9/123 (2013.01); E02F 9/2075 (2013.01); E02F 9/2091 (2013.01); E02F 9/2095 (2013.01); F02D 29/06 (2013.01);
Abstract
An exemplary embodiment suggested in the present specification provides an apparatus and a method of controlling a voltage of a direct current terminal of construction machinery equipped with a motor, which are capable of improving energy efficiency of a power conversion apparatus, such as an inverter and a converter by changing a voltage of the direct current terminal to an optimum voltage size in consideration of operation conditions of a swing motor, an engine auxiliary motor, and an energy storage apparatus.