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:
Oct. 14, 2014
Filed:
Dec. 26, 2011
Kyeong Keun Kim, Gyeonggi-do, KR;
Sang IL Kim, Gyeonggi-do, KR;
Kyeong Keun Kim, Gyeonggi-do, KR;
Sang Il Kim, Gyeonggi-do, KR;
Doosan Infracore Co., Ltd., Incheon, KR;
Abstract
A turning control apparatus for a hybrid construction machine may include an engine, an oil hydraulic pump, an electric energy storage device, an engine assistant motor, a turning motor, a power converter, a battery, an HCU, an SMPS configured to apply electric power to the HCU by being supplied with electric power from the battery, a Keyconfigured to switch a VKey_On path which supplies electric power from the battery to the SMPS when a key on signal of a driver is inputted, and a Keyconfigured to switch a VKey_Out path which allows electric power to be supplied from the battery to the SMPS when an operation of the Keyis stopped, in which the Keyis switched when it is confirmed that the turning motor is being driven in a state in which an operation of the Keyis stopped.