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.:
Date of Patent:
Mar. 08, 2022
Filed:
Aug. 24, 2018
Applicant:
Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh, Munich, DE;
Inventors:
Karsten Schnittger, Munich, DE;
Max Michalski, Neubiberg, DE;
Assignee:
KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 13/68 (2006.01); B60T 13/66 (2006.01); B60T 13/26 (2006.01); B60T 13/38 (2006.01); B60T 15/04 (2006.01);
U.S. Cl.
CPC ...
B60T 13/683 (2013.01); B60T 13/662 (2013.01); B60T 13/263 (2013.01); B60T 13/385 (2013.01); B60T 15/041 (2013.01); B60T 2270/402 (2013.01); B60T 2270/413 (2013.01); B60Y 2400/81 (2013.01);
Abstract
An electropneumatic parking brake control device controls a parking brake including at least one spring brake actuator. The control device includes a relay valve with a control chamber and a vent. The control chamber can be connected to the vent via at least one second throttle element and/or at least one third throttle element depending on the position of the relay piston.