Title:
CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/145105
Kind Code:
A1
Abstract:
There are cases in which reliable ignition by spark discharge cannot be performed due to changes in the flow of a gas mixture inside a cylinder. Thus, an ignition control unit 24 comprises: a secondary voltage calculation unit 31 that calculates an average value of a secondary voltage generated on the secondary side of an ignition coil; an irregular flow ratio calculation unit 32 that calculates, as an irregular flow ratio indicating that the flow of a gas mixture inside a cylinder is irregular, a ratio of a cycle in which the average value of the secondary voltage is equal to or less than a set average value to the cycle of an internal combustion engine in a predetermined time period; and an ignition operation amount correction unit 37 that corrects an ignition operation amount such that the irregular flow ratio becomes equal to or less than a set ratio value which is an attainment target of the irregular flow ratio.
Inventors:
ORYOJI KAZUHIRO (JP)
AKAGI YOSHIHIKO (JP)
IWAKI HIDEFUMI (JP)
AKAGI YOSHIHIKO (JP)
IWAKI HIDEFUMI (JP)
Application Number:
PCT/JP2019/050251
Publication Date:
July 16, 2020
Filing Date:
December 23, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02P3/045
Foreign References:
| JP2014145306A | 2014-08-14 | |||
| JP2012062865A | 2012-03-29 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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