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:
Sep. 22, 2015
Filed:
Jul. 09, 2012
Hajime Yoshida, Omihachiman, JP;
Hajime Ishii, Higashiomi, JP;
Syuuhei Noguchi, Higashiomi, JP;
HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;
Abstract
An engine () electronically controlled by a control device (), a hydraulic motor () for traveling which is driven by a pressurized oil delivered from a hydraulic pump (), and a traveling speed switching member () which switches a traveling speed by the hydraulic motor () at least in two stages of a low speed and a high speed. The control device () includes an output lowering determination unit for determining whether or not a fuel injection amount to be supplied to the engine () is limited and an engine output is in a lowered state and a low-speed control unit in which, when the engine () output is in a lowered state, a traveling speed is controlled to a low speed state kept lower than a high speed even if the traveling speed switching member () has been switched to the high speed side.