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:
Aug. 14, 2012
Filed:
Nov. 26, 2008
Milan Klimes, Niles, MI (US);
Milan Klimes, Niles, MI (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A supply valve (), a relief valve () and a microprocessor () control the supply of pressurized hydraulic fluid from a dedicated pressure source () to a brake boost piston () interposed between an operator brake pedal () input member () and a master cylinder. Transducers () sense a current relationship between the input member () and the boost piston () and supply the microprocessor () with a input to accordingly operate the supply valve () and relief valve (). In one embodiment, a single transducer () senses relative motion between the input member and the piston while in a second embodiment, a single transducer () senses the force exerted on the piston by the input member and a third embodiment first and second transducers () to sense relative motion between the input member and the piston.