Electric power steering apparatus
A technology of electric power steering and electric motor, which is applied in the direction of electric steering mechanism, power steering mechanism, automatic steering control components, etc., and can solve the problem of impaired hand feeling and other problems
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[0033] FIG. 1 is a block diagram showing an electrical configuration of an electric power steering system according to an embodiment of the present invention. Steering torque applied to a steering wheel 1 as an operating member is mechanically transmitted via a steering shaft 2 to a steering mechanism 3 including a rack shaft. The steering assist force is mechanically transmitted from the electric motor M to the steering mechanism 3 via a driving force transmission mechanism such as a gear mechanism (reduction mechanism), or by direct transmission.
[0034] The steering shaft 2 is divided into an input shaft 2A connected to the steering wheel 1 side and an output shaft 2B connected to the steering mechanism 3 side, and these input shaft 2A and output shaft 2B are connected to each other by a torsion bar 4 . The torsion bar 4 is twisted according to the steering torque, and the direction and amount of the twist are detected by the torque sensor 5 (operation amount detection mea...
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