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Title:
IN-VEHICLE DEVICE CONTROL METHOD AND IN-VEHICLE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/122420
Kind Code:
A1
Abstract:
Provided are an in-vehicle device control method and an in-vehicle control device with which it is possible to suppress radiation noise generated when a plurality of loads are driven simultaneously to respectively operate a plurality of in-vehicle devices, without requiring the provision of a new noise suppression component. In a motor drive controller 25 for controlling the driving of two retractor motors 27a and 27b respectively operating two seat belt retractors 26a and 26b, when the two retractor motors are driven simultaneously a phase difference δ is provided in two driving frequency waveforms 40a and 40b corresponding to the two motors.

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WO/1989/012349MOTOR CONTROLLER
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Inventors:
SAITO Masashi (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2016/083628
Publication Date:
July 20, 2017
Filing Date:
November 14, 2016
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
H02P5/46; B60L1/00; B60L9/18; B60L15/20; H02P27/08
Domestic Patent References:
WO2011135687A12011-11-03
WO2013021460A12013-02-14
Foreign References:
JP2004312922A2004-11-04
US6043996A2000-03-28
JP2012175831A2012-09-10
JP2015027236A2015-02-05
JP2014133484A2014-07-24
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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