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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 10543826 B1

PDFFull Text
Date of Patent:
Jan. 28, 2020

Filed:

Mar. 27, 2017

Valve system and method for controlling same

Applicant:

Bendix Commercial Vehicle Systems Llc, Elyria, OH (US);

Inventors:

Paul C. Niglas, Avon, OH (US);

Michael D. Tober, Avon, OH (US);

Randy J. Salvatora, North Olmsted, OH (US);

Assignee:

BENDIX COMMERCIAL VEHICLE SYSTEMS LLC, Elyria, OH (US);

Attorney:

Brian E. Kondas

Primary Examiner:

Melanie Torres Williams

Int. Cl.
CPC ...
B60T 15/18 (2006.01); B60T 7/20 (2006.01); B60T 8/17 (2006.01); B60T 13/68 (2006.01); B60T 7/04 (2006.01); B60T 7/08 (2006.01); B60T 8/38 (2006.01); B60T 8/88 (2006.01); B60T 13/26 (2006.01); B60T 13/66 (2006.01); B60T 13/74 (2006.01); B60T 15/20 (2006.01); B60T 15/22 (2006.01); B60T 17/22 (2006.01);
U.S. Cl.
CPC ...
B60T 15/18 (2013.01); B60T 7/042 (2013.01); B60T 7/085 (2013.01); B60T 7/20 (2013.01); B60T 8/1708 (2013.01); B60T 8/38 (2013.01); B60T 8/88 (2013.01); B60T 8/885 (2013.01); B60T 13/263 (2013.01); B60T 13/265 (2013.01); B60T 13/66 (2013.01); B60T 13/662 (2013.01); B60T 13/68 (2013.01); B60T 13/683 (2013.01); B60T 13/74 (2013.01); B60T 15/181 (2013.01); B60T 15/182 (2013.01); B60T 15/203 (2013.01); B60T 15/206 (2013.01); B60T 15/223 (2013.01); B60T 15/226 (2013.01); B60T 17/221 (2013.01); B60T 2201/06 (2013.01);
Abstract

A valve system includes an isolation check valve delivering pneumatic fluid as a supply pressure, a double-check valve adapted to deliver a braking demand control signal of the pneumatic fluid based on a higher of a first braking demand in a first pneumatic braking circuit and a second braking demand in a second pneumatic braking circuit, and a control module. The control module is adapted to receive the supply pressure as a control module supply pressure of the pneumatic fluid, receive a control module control pressure of the pneumatic fluid based on the braking demand control signal, and deliver a control module delivery pressure of the pneumatic fluid based on the control module supply pressure and the control module control pressure. A park control module selectively transmits the pneumatic fluid at the supply pressure based on a park brake control signal.

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