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. 27, 2006
Filed:
Aug. 29, 2003
Masamichi Imamura, Kanagawa, JP;
Masamichi Imamura, Kanagawa, JP;
Hitachi, Ltd., Tokyo-to, JP;
Abstract
In brake pressure estimating method and apparatus for an automotive vehicle, at a second wheel cylinder brake liquid pressure estimating, a vehicular state is detected and the second wheel cylinder brake liquid pressure for each road wheel is calculated from the detected vehicular motion state, and, at a master cylinder liquid pressure estimating, a master cylinder liquid pressure estimated value is outputted to make a difference between a first wheel cylinder brake liquid pressure estimated value based on a vehicle model and the second wheel cylinder brake liquid pressure estimated value based on a hydraulic unit model small to cause the master cylinder liquid pressure estimated value to be converged into a true value thereof.