TORQUE SENSOR FOR POWER STEERING AND MOTOR-DRIVEN TYPE POWER STEERING APPARATUS INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a torque sensor capable of realizing a simple configuration and device miniaturization and to provide a motor-driven power steering apparatus including the torque sensor.;SOLUTION: In a torque sensor TS to be attached to a steering shaft, a first stator 311a is arranged coaxially with a first rotor 312a and forms a first motor 310a by combination with the first rotor 312a. On the other hand, a second stator 311b is arranged coaxially with a second rotor 312b. Since a torsion bar and a complicated mechanism for fixing the torsion bar can be excluded in the torque sensor TS, the number of components and the size and cost of the device can be reduced.;COPYRIGHT: (C)2012,JPO&INPIT