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:
Jul. 19, 2016
Filed:
Dec. 05, 2014
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Clinton Schumann, Royal Oak, MI (US);
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
A method of operating a brake system comprises monitoring a vacuum pressure sensor with an ECU to determine an actual vacuum pressure in a vacuum booster for the brake system. The actual vacuum pressure is compared to a modeled vacuum pressure for the vacuum booster. When the actual vacuum pressure is different from the modeled vacuum pressure by a predetermined threshold difference the ECU determines either a booster leak to atmosphere or a booster checkball is malfunctioning. When the ECU determines that the booster is leaking to atmosphere or the booster checkball is malfunctioning an alert is provided.