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:
Feb. 23, 1993
Filed:
Sep. 12, 1990
WABCO Westinghouse Fahrzugbremsen GmbH, Hanover, DE;
Abstract
A method for the surveillance of a brake device includes an indirect measurement of temperature of a selected device component, for example a brake drum, of a brake device. A warning signal is furnished, if this measured temperature reaches a maximum permissible value. The invention method is quick by employing the pressure-dependent deformation characterizing curve (11) of the device component heated to the permissible temperature. The device component represented by the brake drum (1) can heat to the maximum permissible temperature and is placed under surveillance during a brake actuation based on deformation and pressure measurement. It is then determined if the actual values reach or exceed the deformation characterizing curve (11). The invention apparatus is used in connection with brake devices in vehicles.