| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To control a vibration transmission characteristic from a steering wheel to a steering so as to enhance the steering feeling of a driver. <P>SOLUTION: A filter 62 for controlling a vibration transmission characteristic inputted with a signal for indicating an axial force F of a tie rod 31 from an axial force sensor 27 has a frequent characteristic H2 passing a component of a low frequency area of resonance frequency f1 or lower of a suspension 32, suppressing a component of a medium frequency area higher than the resonance frequency f1 of the suspension 32 and lower than the twisting resonance frequency f2 of the steering 22 and passing or amplifying a component of a high frequency area higher than the twisting resonance frequency f2 of the steering 22. Based on the output signal from the filter 62 for controlling the vibration transmission characteristic, vibration in a rotation direction applied from a motor 42 for the electric power steering device to the steering 22 is controlled, thereby, the vibration transmission characteristic from the steering wheel 30 to the steering 22 is controlled. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
