Title:
ELECTRONIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/157232
Kind Code:
A1
Abstract:
The present invention provides an electronic control device 110 that controls driving of a plurality of inductive loads and that is capable of prolonging the lifespan of an electronic component by minimizing the total amount of ripple current effective values of the electronic component. The electronic control device 110 comprises: a control unit 270 that, on the basis of driving state information of a plurality of inductive loads 130-150, sets driving output values that include the driving commencement timing, output duty ratio, and driving frequency of a plurality of load drivers 160-180 which drive the inductive loads 130-150; current output units 280, 300, 320 that output values of the currents flowing through the load drivers 160-180; and an ON timing setting unit 290 that, on the basis of the current values output by the current output unit 280, 300, 320, sets the timing of when to turn on the output of the driving output values in the load drivers 160-180. The ON timing setting unit 290 sets the ON timing of each of the load drivers 160-180 to a timing which offsets the ripple current effective value generated in an electronic component 120 connected via a power source line as a drive source of the plurality of inductive loads 130-150.
Inventors:
SEKIYA MASASHI (JP)
YAMAMOTO YUSUKE (JP)
YAMAMOTO YUSUKE (JP)
Application Number:
PCT/JP2022/006658
Publication Date:
August 24, 2023
Filing Date:
February 18, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P5/00
Foreign References:
| JP2012029378A | 2012-02-09 | |||
| JP2004304868A | 2004-10-28 | |||
| JP2000078850A | 2000-03-14 | |||
| JP2011223831A | 2011-11-04 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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