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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 8935031 B1

PDFFull Text
Date of Patent:
Jan. 13, 2015

Filed:

Jan. 20, 2012

Construction vehicle control apparatus and construction vehicle

Applicants:

Hidekazu Moriki, Hitachinaka, JP;

Satoru Kaneko, Naka, JP;

Takashi Ikimi, Hitachi, JP;

Noritaka Ito, Ushiku, JP;

Inventors:

Hidekazu Moriki, Hitachinaka, JP;

Satoru Kaneko, Naka, JP;

Takashi Ikimi, Hitachi, JP;

Noritaka Ito, Ushiku, JP;

Assignee:

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

Attorney:

Antonelli, Terry, Stout & Kraus, LLP.

Primary Examiner:

Thomas Tarcza

Assistant Examiner:

Garrett Evans

Int. Cl.
CPC ...
B60L 11/00 (2006.01); B60W 10/196 (2012.01); B60L 7/14 (2006.01); B60L 7/26 (2006.01); B60L 11/12 (2006.01); B60L 15/20 (2006.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 10/184 (2012.01); B60W 20/00 (2006.01); B60W 30/18 (2012.01); E02F 9/20 (2006.01); B60W 10/188 (2012.01);
U.S. Cl.
CPC ...
B60W 10/196 (2013.01); B60L 7/14 (2013.01); B60L 7/26 (2013.01); B60L 11/005 (2013.01); B60L 11/123 (2013.01); B60L 15/2009 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 10/184 (2013.01); B60W 20/00 (2013.01); B60W 30/18127 (2013.01); E02F 9/2075 (2013.01); E02F 9/2083 (2013.01); B60W 10/188 (2013.01); B60L 2200/40 (2013.01); B60L 2210/10 (2013.01); B60L 2210/40 (2013.01); B60L 2240/423 (2013.01); B60L 2240/441 (2013.01); B60T 2270/604 (2013.01); B60W 20/1062 (2013.01); B60W 2510/0638 (2013.01); B60W 2510/085 (2013.01); B60W 2510/244 (2013.01); B60W 2710/086 (2013.01); B60W 2710/182 (2013.01); B60Y 2200/412 (2013.01); Y02T 10/6286 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7241 (2013.01); Y02T 10/7022 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/642 (2013.01); B60W 2600/00 (2013.01); Y02T 10/6217 (2013.01); B60L 2240/12 (2013.01); B60L 2240/421 (2013.01); B60L 2240/443 (2013.01); B60L 2260/28 (2013.01);
Abstract

A construction vehicle control apparatus is provided including: a motor generator control unit () which, when regenerative electrical power generated by a motor () during regenerative braking surpasses acceptable charging electrical power of a capacitor (), drives a motor generator () using the surplus electrical power; an engine controller () which detects the rotating speed of an engine (); a motor control unit () which, if the rotating speed of the engine becomes larger than a second set value while the motor generator is being driven by the surplus electrical power, reduces regenerative torque generated by the motor; and a brake control unit () which, if the rotating speed of the engine becomes larger than the second set value while the motor generator is being driven by the surplus electrical power, increases regenerative torque generated by a hydraulic brake ().

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