| 摘要 |
PROBLEM TO BE SOLVED: To provide a power steering system capable of giving torsional reaction force suitable for various traveling states without largely increasing the number of parts. SOLUTION: This power steering system is furnished with an input shaft 2 connected to a steering member and an output shaft 3 connected to the input shaft 2 and connected to a steering mechanism in the inside of casing and actuates an actuator for power assist by relatively rotating the input shaft 2 and the output shaft 3. It is also furnished with a yoke member 51 free to move which is fitted on the input shaft 2, a yoke receiver member 52 facing against the yoke member 51 and fixed on the side of the output shaft 3 and a pressure adjusting member 53 fixed on the input shaft 2 to pressurize the yoke member 51 to the side of the yoke receiver member 52. An electromagnet is fixed on the pressure adjusting member 53 and a permanent magnet is fixed on the yoke member 51 respectively so as to face against each other in the same polarity, and the magnitude of electrical current to magnetize the electromagnet is controlled by an electrifying circuit 54. COPYRIGHT: (C)2007,JPO&INPIT
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