Title:
Injection control device
Document Type and Number:
Japanese Patent JP6354697
Kind Code:
B2
Abstract:
Provided is an injection control apparatus that controls an operation of a fuel injection valve (40) driven by an electromagnetic force, the injection control apparatus being provided with: an electric current detection unit (110) that detects driving electric current supplied to the fuel injection valve; a speed calculation unit (111) that calculates the valve opening speed of the fuel injection valve on the basis of the variation in the driving electric current while the fuel injection valve is performing a valve opening operation; and a first timing calculation unit (112) that calculates valve opening completion timing, which is timing at which the degree of opening of the fuel injection valve is at the maximum. The injection control apparatus is further provided with a second timing calculation unit (113) that calculates valve opening start timing, which is timing at which the fuel injection valve starts opening, on the basis of the valve opening speed calculated by the speed calculation unit and the valve opening completion timing.
Inventors:
Takaaki Nakano
Makoto Tanaka
Makoto Tanaka
Application Number:
JP2015153088A
Publication Date:
July 11, 2018
Filing Date:
August 03, 2015
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D41/34; F02D41/26; F02M51/06; F02M61/10
Domestic Patent References:
| JP2011231696A | ||||
| JP2014208998A |
Foreign References:
| WO2015045508A1 |
Attorney, Agent or Firm:
Toru Kamada
Takuma Tsuda
Kentaro Ito
Takuma Tsuda
Kentaro Ito