| 摘要 |
A method for controlling a lumbar support device and a motor control device provided, which are applied to a powered seat. The motor for causing fore-and-aft movement of a lumbar plate is controlled under a selected one of burst and fluctuation control modes. In the burst control mode, the lumbar plate is moved periodically in the fore-and-aft direction, whereas in the fluctuation control mode, the lumbar plate is moved in a aperiodic and weavering way in that direction, for example, on the basis of 1/f fluctuation waveform, to thereby alleviate a fatigue of lumbar part of a passenger sitting on the seat.
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