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:
Jun. 26, 2012
Filed:
Aug. 28, 2006
Faouzi Attallah, Darmstadt, DE;
Rudiger Majlo, Berlin, DE;
Guntjof Magel, Russelsheim, DE;
Lukas Kroh, Butzbach, DE;
Frank Sikorski, Steinbach, DE;
Andreas Kohl, Mainz, DE;
Jochen Muller, Marburg, DE;
Faouzi Attallah, Darmstadt, DE;
Rudiger Majlo, Berlin, DE;
Guntjof Magel, Russelsheim, DE;
Lukas Kroh, Butzbach, DE;
Frank Sikorski, Steinbach, DE;
Andreas Kohl, Mainz, DE;
Jochen Muller, Marburg, DE;
Continental Teves AG & Co., OHG, Frankfurt, DE;
Abstract
A method of determining an initial pressure prevailing between a master brake cylinder and an inlet valve of a wheel brake cylinder of a motor vehicle determines the initial pressure taking into consideration the variation of a voltage of a PWMoperated motor of a pump, which is used for the return delivery of brake fluid from a low-pressure accumulator into the master brake cylinder. Several characteristic quantities of the voltage variation are measured and converted to respective initial pressure values. The characteristic quantities or the initial pressure values determined therefrom are filtered or conditioned in the event of lack in quality or reliability of the measured characteristic quantities. The respective initial pressure values of similar size are averaged, and the averaged initial pressure values are temporally averaged in order to dampen fluctuations.