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:
May. 23, 2006
Filed:
Dec. 31, 2003
Jong-hwa Lee, Seoul, KR;
Wan-sub Kim, Kyunggi-do, KR;
Chang-won Kang, Seoul, KR;
Hyundai Mobils, Co., Ltd., Kyunggi-do, KR;
Abstract
An absolute steering angle of a steering shaft for a vehicle is measured using rotatable bodies that rotate together with the steering shaft at respective predetermined rotation ratios. A Ψ' value is obtained by measuring a relative rotational angle Ψ′ of a first rotatable body and a θ′ value is obtained by measuring the relative rotational angle θ′ of a second rotatable body. θ's are obtained by calculating relative rotational angles θ's of the second rotatable body corresponding to the Ψ′ value, using the relation between Ψ′ and θ′. A frequency i-value of the first rotatable body is obtained by comparing the θs to the θ′ value. An absolute steering angle Φof the steering shaft is obtained based on the relation between absolute rotational angles Ψ and Φ, after Ψ is obtained using the i-value.