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:
Nov. 23, 2004
Filed:
Nov. 08, 2002
Applicant:
Inventors:
Dieter Woerner, Eppingen, DE;
Martin Blanc, Knittlingen/Kleinvillars, DE;
Michael Herges, Korntal-Muenchingen, DE;
Assignee:
Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 1/620 ; B60T 8/36 ; B60T 1/368 ;
U.S. Cl.
CPC ...
G05D 1/620 ; B60T 8/36 ; B60T 1/368 ;
Abstract
In a system for controlling a brake valve, the supply voltage available for controlling the electromagnet of the brake valve is continually measured during operation and the effective value of the voltage present at the coil of the electromagnet is varied by varying the duty factor of the pulse times according to the supply voltage supplied at the time.