logo

For the Inventor, By the Inventor

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.:

US 9366012 B1

PDFFull Text
Date of Patent:
Jun. 14, 2016

Filed:

Feb. 13, 2013

Electrically driven working vehicle

Applicant:

Hitachi Construction Machinery Co., Ltd., Tokyo, JP;

Inventors:

Hidekazu Moriki, Tokyo, JP;

Satoru Kaneko, Tokyo, JP;

Masatoshi Hoshino, Tokyo, JP;

Takashi Ikimi, Tsuchiura, JP;

Noritaka Ito, Tsuchiura, JP;

Assignee:

HITACHI CONSTRUCTION MACHINERY CO., LTD., Tokyo, JP;

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Michael J Zanelli

Int. Cl.
CPC ...
B60W 10/26 (2006.01); B60K 6/46 (2007.10); B60L 11/14 (2006.01); E02F 9/20 (2006.01); B60W 10/08 (2006.01); B60W 20/00 (2016.01); B60L 7/14 (2006.01); B60L 7/18 (2006.01); B60L 11/00 (2006.01); B60L 11/12 (2006.01); B60W 10/06 (2006.01); E02F 9/22 (2006.01); B60K 6/52 (2007.10); B60W 30/18 (2012.01);
U.S. Cl.
CPC ...
E02F 9/2075 (2013.01); B60K 6/46 (2013.01); B60K 6/52 (2013.01); B60L 7/14 (2013.01); B60L 7/18 (2013.01); B60L 11/005 (2013.01); B60L 11/126 (2013.01); B60L 11/14 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/00 (2013.01); E02F 9/207 (2013.01); E02F 9/2079 (2013.01); E02F 9/2083 (2013.01); E02F 9/2091 (2013.01); E02F 9/2095 (2013.01); E02F 9/2296 (2013.01); B60L 2200/42 (2013.01); B60L 2210/30 (2013.01); B60L 2210/40 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/526 (2013.01); B60L 2240/527 (2013.01); B60L 2240/529 (2013.01); B60L 2240/547 (2013.01); B60L 2250/26 (2013.01); B60W 30/18045 (2013.01); B60W 2300/17 (2013.01); B60W 2510/244 (2013.01); Y02T 10/6217 (2013.01); Y02T 10/6265 (2013.01); Y02T 10/6286 (2013.01); Y02T 10/642 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7241 (2013.01); Y10S 903/903 (2013.01);
Abstract

An electrically driven working vehicle that requiring reduced power assistance from an electrical storage device is provided. The vehicle has an engine, a generator motor connected to the engine, a generator inverter for controlling the amount of power generated by the generator motor, a traveling motor for driving the vehicle, an electrical storage device connected to the generator inverter and the traveling motor, and a forward/reverse switching device for switching the traveling direction of the vehicle. The vehicle further includes a control device for outputting to the generator inverter an instruction to increase the amount of power generated by the generator motor when the voltage of the electrical storage device is equal to or lower than a maximum voltage level and a speed signal of the traveling motor given upon switching of the forward/reverse switching device is equal to or lower than a predetermined speed.

Find Patent Forward Citations

Loading…