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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 12454256 B1

PDFFull Text
Date of Patent:
Oct. 28, 2025

Filed:

Jun. 08, 2023

Method for emergency engagement of a holding brake, and electropneumatic brake system

Applicant:

Zf Cv Systems Global Gmbh, Bern, CH;

Inventor:

Julian Van Thiel, Grossburgwedel, DE;

Assignee:

ZF CV Systems Global GmbH, Bern, CH;

Attorney:

Walter Ottesen, P.A.

Primary Examiner:

Hai H Huynh

Assistant Examiner:

Johnny H Hoang

Int. Cl.
CPC ...
B60T 8/94 (2006.01); B60T 7/12 (2006.01); B60T 8/17 (2006.01); B60T 8/88 (2006.01); B60T 13/38 (2006.01); B60T 13/66 (2006.01); B60T 13/68 (2006.01); B60T 17/08 (2006.01); B60T 17/22 (2006.01);
U.S. Cl.
CPC ...
B60T 8/94 (2013.01); B60T 7/12 (2013.01); B60T 8/17 (2013.01); B60T 8/885 (2013.01); B60T 13/38 (2013.01); B60T 13/662 (2013.01); B60T 13/683 (2013.01); B60T 17/083 (2013.01); B60T 17/22 (2013.01); B60T 2210/32 (2013.01); B60T 2220/04 (2013.01); B60T 2230/00 (2013.01); B60T 2250/04 (2013.01); B60T 2270/402 (2013.01); B60T 2270/403 (2013.01); B60T 2270/406 (2013.01);
Abstract

A method for emergency engagement of a holding brake of a vehicle having an electropneumatic brake system. The electropneumatic brake system includes a service brake system with a service brake and a holding brake system with the holding brake. The holding brake system has spring brake cylinders. The service brake system includes a service brake control unit. The electropneumatic braking system includes at least one brake circuit for the service brake and the holding brake. The service and holding brakes may be in separate brake circuits. The spring brake cylinders can be vented when a supply pressure in at least one brake circuit for the service brake decreases. The method includes reducing, via the service brake control unit, the supply pressure in at least one brake circuit for the service brake under a program control in defined conditions.

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