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:
Mar. 31, 2015
Filed:
Jul. 28, 2011
Shinji Kaneko, Oyama, JP;
Yoshitaka Onodera, Hiratsuka, JP;
Jun Hashimoto, Chigasaki, JP;
Hideyuki Hiraiwa, Tochigi, JP;
Kazunori Nishimura, Komatsu, JP;
Shinji Kaneko, Oyama, JP;
Yoshitaka Onodera, Hiratsuka, JP;
Jun Hashimoto, Chigasaki, JP;
Hideyuki Hiraiwa, Tochigi, JP;
Kazunori Nishimura, Komatsu, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
An engine control device for a forklift that suppresses an increase in fuel consumption amount and noise by limiting an engine rotation speed when the forklift is driven without the need to increase the engine speed according to the accelerator operation even when the accelerator is depressed hard. Determining means in a controller determines whether all of the following conditions are satisfied: a neutral position of the traveling direction instructing means; a lift raising switch and first, second and third attachment switches are turned off. When all of the above conditions are satisfied, it is determined whether the forklift is driven in any of a plurality of states. An engine control means generates and outputs a control command to obtain the engine speed based on the accelerator pedal depression with the upper limit value of the engine speed set as an upper limit value of the engine speed.