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:
Mar. 01, 2005
Filed:
Dec. 31, 2003
Chang-won Kang, Seoul, KR;
Wan-sub Kim, Kyunggi-do, KR;
Jong-hwa Lee, Seoul, KR;
Hyundai Mobis Co., Ltd., Yongin-shi, KR;
Abstract
A method is provided for measuring an absolute steering angle of a steering shaft for a vehicle using a first rotatable body and a second rotatable body that rotate together with the steering shaft of the vehicle at a predetermined rotation ratio, respectively. The method includes organizing a table by matching a plurality of relative rotational angle pairs (Ψ', θ′), where Ψ′ is a relative rotational angle of the first rotatable body, and θ′ is a relative rotational angle of the second rotatable body, with respective absolute steering angles, Φs, that correspond to each of the relative rotational angle pairs. The method also includes obtaining a Ψ′ value by measuring the relative rotational angle Ψ′ of the first rotatable body and obtaining a θ′ value by measuring the relative rotational angle θ′ of the second rotatable body, using at least an angle sensor having a measurement range of Ω. The method further includes obtaining an absolute steering angle Φ of the steering shaft corresponding to the measured relative rotational angle pair (Ψ′, θ′) by looking up information in the table.