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.

Date of Patent:
Aug. 17, 2021

Filed:

Jan. 24, 2017
Applicant:

Knorr-bremse Systeme Fuer Nutzfahrzeuge Gmbh, Munich, DE;

Inventors:

Frank Scholl, Ingersheim, DE;

Ping Zhao, Leonberg, DE;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60T 17/22 (2006.01); B60T 8/88 (2006.01);
U.S. Cl.
CPC ...
B60T 17/221 (2013.01); B60T 8/885 (2013.01); B60T 2270/406 (2013.01); B60T 2270/415 (2013.01);
Abstract

A method for monitoring a solenoid valve, the method including: applying a test signal on one side of the solenoid valve, the solenoid valve having a control coil for controlling an air pressure in a brake cylinder of an electro-pneumatic brake, wherein the solenoid valve has a supply voltage side, at which the control coil takes up an electric supply current, and a reference potential side, at which the control coil delivers the electric supply current; tapping a measurement signal on the other side of the solenoid valve; and determining the state of the solenoid valve based on a juxtaposition of the test signal and of the measurement signal. Also described are a related control apparatus, an electro-pneumatic brake, and a computer readable medium.


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