Open Daily: 10am - 10pm | Alley door pickup 10am - 7pm 3038 Hennepin Ave Minneapolis, MN
612-822-4611

  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Electric power steering control device: United States Patent 9988077

Electric power steering control device: United States Patent 9988077

Chiba, Masaki

Paperback

General Science

Currently unavailable to order

ISBN13: 9798576574445
Publisher: Independently Published
Published: Dec 5 2020
Pages: 26
Weight: 0.19
Height: 0.05 Width: 8.50 Depth: 11.02
Language: English
Filters output a vibration-suppression gain for suppressing resonance of a sub frame or shimmy by performing a filter processing on a rotational angle of a motor. The filters have respective frequency characteristics that a gain becomes a maximum magnitude and a phase advances by 90.degree. at a cut-off angle frequency. The cut-off angle frequency of the filter is fixedly set at a resonance frequency of the sub frame. The cut-off angle frequency of the filter is variably set in accordance with a tire rotation frequency. A gain adder adds the respective gains of the filters and outputs an added magnitude to a correcting mechanism as a vibration-suppression gain. The correcting mechanism corrects a motor torque set by an assist map by using the vibration-suppression gain outputted by the gain adder.

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