Angle sensing device and angle sensing system

Details Angle sensing device and angle sensing system Angle sensing device and angle sensing system

2011-06-07

2011-06-07

Le, John H (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

C701S044000

Reexamination Certificate

active

07957930

ABSTRACT:
An angle sensing system for sensing a rotating angle of a steering wheel includes a sensing unit, a processing unit, and a storage unit. The sensing unit detects the rotating angle of a steering column connected to the steering wheel and outputting a sensing signal based on the rotating angle. When the steering column rotates for a circle, the sensing signal presents a non-continuous status. The processing unit calculates the relative angle in a single loop of the steering column based on the sensing signal and the number of loops according to the number of the non-continuous status. The storage unit stores the information of the relative angle and the number of loops. Based on the number of loops and the relative angle, the rotating angle of the steering wheel is detected.

REFERENCES:
patent: 6738725 (2004-05-01), Koga et al.
patent: 6901320 (2005-05-01), Yao et al.
patent: 7301446 (2007-11-01), Ray et al.
patent: 2005/0064993 (2005-03-01), Ginther et al.

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