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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 11773568 B1

PDFFull Text
Date of Patent:
Oct. 03, 2023

Filed:

Jan. 28, 2019

Braking control device and braking control method of construction machine

Applicant:

Doosan Infracore Co., Ltd., Incheon, KR;

Inventors:

Yeonhaeng Heo, Incheon, KR;

Kwangseok Park, Incheon, KR;

Gyuhong Park, Incheon, KR;

Assignee:

DOOSAN INFRACORE CO., LTD., Incheon, KR;

Attorney:

K&L Gates LLP

Primary Examiner:

Bradley T King

Int. Cl.
CPC ...
B60T 13/18 (2006.01); E02F 9/20 (2006.01); B60T 7/04 (2006.01); B60T 8/17 (2006.01); B60T 8/171 (2006.01); B60T 8/172 (2006.01); B60T 8/176 (2006.01); B60T 8/18 (2006.01); B60T 8/24 (2006.01); B60T 8/32 (2006.01); B60T 8/92 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2083 (2013.01); B60T 7/042 (2013.01); B60T 8/17 (2013.01); B60T 8/171 (2013.01); B60T 8/172 (2013.01); B60T 8/176 (2013.01); B60T 8/18 (2013.01); B60T 8/245 (2013.01); B60T 8/321 (2013.01); B60T 8/326 (2013.01); B60T 8/92 (2013.01); B60T 13/18 (2013.01); B60T 2210/20 (2013.01); B60T 2220/04 (2013.01); B60T 2250/00 (2013.01); B60T 2250/04 (2013.01); B60T 2270/10 (2013.01); B60T 2270/402 (2013.01); B60T 2270/404 (2013.01); B60T 2270/82 (2013.01);
Abstract

A brake control apparatus for construction machinery, includes first and second brake lines through which a brake oil is supplied to a front brake device and a rear brake device of the construction machinery, first and second proportional flow control valves installed respectively in the first and second brake lines to control a flow rate of the brake oil in proportion to inputted first and second brake control signals, a sensing portion configured to detect work and travel information of the construction machinery, and a controller configured to output the first and second brake control signals in response to a brake manipulation signal of a driver, and configured to control independently the first and second proportional flow control valves based on the work and travel information of the construction machinery detected by the sensing portion.

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