Title:
ELECTRONIC CONTROL DEVICE AND METHOD FOR CONTROLLING ELECTRONIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/149045
Kind Code:
A1
Abstract:
Provided is an electronic control device that drivably controls a fuel injection valve, wherein a boost current of a boost circuit is increased only in situations requiring an increase in boost energy from a short-term boost, and the boost current of the boost circuit is reduced in other situations. The electronic control device is characterized by comprising a boost circuit, a boost setting controller that holds boost control information for the boost circuit, a boost controller that controls a current supplied to the boost circuit on the basis of a current set value from the boost setting controller, and a fuel injection circuit that supplies a current to a fuel injection valve using voltage generated by the boost circuit, the boost setting controller reducing the boost speed of the boost circuit when information pertaining to an engine temperature becomes higher than a predetermined value.
Inventors:
TSUKIO KOICHI (JP)
Application Number:
PCT/JP2022/041859
Publication Date:
August 10, 2023
Filing Date:
November 10, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02M51/00; F02D41/30; H02M3/155
Domestic Patent References:
| WO2016093056A1 | 2016-06-16 |
Foreign References:
| JP2016217322A | 2016-12-22 | |||
| JP2007146721A | 2007-06-14 | |||
| JP2001227389A | 2001-08-24 | |||
| JP2020016154A | 2020-01-30 | |||
| JP2006274969A | 2006-10-12 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
Download PDF: