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. 31, 2010
Filed:
Jun. 11, 2007
Nobuyuki Nomura, Tomi, JP;
Megumu Uda, Tomi, JP;
Nobuyuki Nomura, Tomi, JP;
Megumu Uda, Tomi, JP;
Nissin Kogyo Co., Ltd., Nagano, JP;
Abstract
A vehicular brake hydraulic pressure controller has a reference hydraulic pressure acquisition sectionfor acquiring hydraulic pressure achieved on the other side of an electromagnetic valve as reference hydraulic pressure, a differential pressure calculation sectionfor calculating a differential pressure Py by subtracting previously-estimated hydraulic pressure achieved on one side of the electromagnetic valve from the reference hydraulic pressure; a pressure gradient coefficient calculation sectionfor acquiring a pressure gradient coefficient K correlating with a drive current of the electromagnetic valve and the differential pressure Py, and an estimated hydraulic pressure calculation sectionfor estimating current hydraulic pressure by adding a product, which has been produced by multiplying the differential pressure Py by the pressure gradient coefficient K, to the previously-estimated hydraulic pressure achieved on one side of the electromagnetic valve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile