Method for controlling a lumbar support device in a powered seat

Details Method for controlling a lumbar support device in a powered seat Method for controlling a lumbar support device in a powered seat

1992-10-06

1993-09-07

Ro, Bentsu

Electricity: motive power systems

Positional servo systems

Multiple mode systems

318567, 2972844, B60N 222, G05B 1100

Patent

active

052432670

ABSTRACT:
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.

REFERENCES:
patent: 4966410 (1990-10-01), Bishai
patent: 4981131 (1991-01-01), Hazard
patent: 5005904 (1991-04-01), Clemens et al.
patent: 5065079 (1991-11-01), Ogasawara
patent: 5127708 (1992-07-01), Kishi et al.
patent: 5129704 (1992-07-01), Kishi et al.
patent: 5155685 (1992-10-01), Kishi et al.
patent: 5171209 (1992-12-01), Gamba

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