| 摘要 |
PURPOSE: A reaction device of a power steering system for a car is provided to steer stably in the section of both low and high velocity by generating a reaction to steering assistant force with attraction and repulsion between magnetic force. CONSTITUTION: A reaction device of a power steering system for a car comprises : an input shaft(220) to be equipped in the first housing ; a torsion bar(230) to be connected with the inside of an input shaft(220) ; a piston shaft(240) to be connected with the lower side of an input shaft(220) ; a valve body to be rolled on an input shaft(220) ; an excite coil(130) of circular type to be roller on an input shaft(220) ; a permanent magnet ring(204) to be installed in a magnetic road generated by an excite coil(130), and to be fixed into only one magnetic pole of an inner side and an exterior side ; an inner and an exterior ferromagnetic body(208) to be equipped in a radius direction of a permanent magnet ring(204) and to form tooths(216)(218) connected for rotating as a movement of an input shaft(220) and a torsion bar(230).
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