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:
Jan. 03, 2012
Filed:
May. 19, 2009
Thorsten Averbeck, Schwarmstedt, DE;
Jürgen Eickhoff, Walsrode, DE;
Helmut Kortschakowski, Garbsen, DE;
Thorsten Averbeck, Schwarmstedt, DE;
Jürgen Eickhoff, Walsrode, DE;
Helmut Kortschakowski, Garbsen, DE;
WABCO GmbH, Hannover, DE;
Abstract
In a vehicle brake system including first and second brake circuits, a dual-circuit brake actuator, first and second control lines, the first brake circuit including a first brake pressure regulating valve and a first pressure sensor, the second brake circuit including a second brake pressure regulating valve and a second pressure sensor, the brake actuator connected to the first valve via the first control line to control that valve, and, via the second control line, to the second valve to control that valve, a control unit is communicatively connected to the pressure sensors and brake actuator and is adapted to effect a method for detecting a brake system circuit failure including determining a first pressure difference in the first brake circuit and a second pressure difference in the second brake circuit during actuation of the brake actuator, and determining a first comparison value from the first and second pressure differences.