Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2006-05-23
2006-05-23
Beaulieu, Yonel (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C180S006200, C180S443000, C280S005510, C702S151000
Reexamination Certificate
active
07050895
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 ΨM′ value is obtained by measuring a relative rotational angle Ψ′ of a first rotatable body and a θM′ value is obtained by measuring the relative rotational angle θ′ of a second rotatable body. θC's are obtained by calculating relative rotational angles θ's of the second rotatable body corresponding to the ΨM′ value, using the relation between Ψ′ and θ′. A frequency i-value of the first rotatable body is obtained by comparing the θCs to the θM′ value. An absolute steering angle Φ1of the steering shaft is obtained based on the relation between absolute rotational angles Ψ and Φ, after Ψ is obtained using the i-value.
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Kang Chang-Won
Kim Wan-Sub
Lee Jong-Hwa
Beaulieu Yonel
Greenblum & Bernstein P.L.C.
Hyundai Mobils, Co., Ltd.
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