Title:
燃料噴射制御装置
Document Type and Number:
Japanese Patent JP6881132
Kind Code:
B2
Abstract:
To provide a fuel injection control device for suppressing a reduction in the control accuracy of a fuel injection amount.SOLUTION: Before the arrival of a required injection start timing, a micro computer determines whether the required injection start timing and a required ignition timing overlap each other or not. With the arrival of the required injection start timing, the micro computer detects in S310 a voltage value for a fuel pressure sensor signal from a sensor for detecting the pressure of fuel to be supplied into an injector after applying A/D conversion thereto. Besides, when not determining that the two timings overlap each other, the micro computer calculates in S340, S360 an injection time from the required injection start timing using ADb as a detection value in S310, but, when determining that the two timings overlap each other, calculates in S350, S360 the injection time using the voltage value for the fuel pressure sensor signal detected before the required injection start timing instead of the ADb.SELECTED DRAWING: Figure 4
Inventors:
Kentaro Nara
Application Number:
JP2017146522A
Publication Date:
June 02, 2021
Filing Date:
July 28, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02D41/34; F02D45/00
Domestic Patent References:
| JP2030961A | ||||
| JP6241110A | ||||
| JP10318070A | ||||
| JP2004278461A | ||||
| JP2006057626A | ||||
| JP2013060864A | ||||
| JP2013064378A |
Attorney, Agent or Firm:
Nagoya International Patent Service Corporation