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:
Jul. 05, 2016
Filed:
Dec. 10, 2013
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Sumitomo(s.h.i.) Construction Machinery Co., Ltd., Tokyo, JP;
Koji Kawashima, Kanagawa, JP;
Yuta Sugiyama, Kanagawa, JP;
Hideto Magaki, Chiba, JP;
Kiminori Sano, Chiba, JP;
Ryuji Shiratani, Chiba, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
A hybrid work machine includes a turning electric motor configured to turn an upper-part turning body, a hydraulic actuator, and a controller configured to control turning in a state of an independent turning operation by the turning electric motor and in a state of a combined turning operation by the turning electric motor and the hydraulic actuator. The controller is configured to limit the output of the turning electric motor in the state of the independent turning operation after a transition from the state of the combined turning operation to the state of the independent turning operation to an output smaller than the output of the turning electric motor in the state of the independent turning operation other than the state of the independent turning operation after said transition.