| 摘要 |
PROBLEM TO BE SOLVED: To improve accuracy of gas fuel injection control by accurately correcting an intake pipe internal pressure which greatly affects the correction of the injection quantity of gas fuel injected from a fuel injection valve. SOLUTION: This gas fuel injection control device of an engine for a vehicle includes a control means which performs control to previously set a transition determination filter value for determining the transition operation state of an engine, and calculates a transition determination intake pipe internal pressure from the transition determination filter value, an intake pipe internal pressure detected last time, and an intake pipe internal pressure detected this time, and when a lapse time after start of the engine exceeds a predetermined value, calculates a transition determination intake pipe internal differential pressure from the intake pipe internal pressure that has been detected this time and the transition determination intake pipe internal pressure, set an intake pipe internal pressure filtering value based on the transition determination intake pipe internal differential pressure, and calculates an intake pipe internal pressure used for gas fuel injection control this time from the intake pipe internal pressure filtering value, the intake pipe internal pressure detected this time, and an intake pipe internal pressure used for gas fuel injection control last time. COPYRIGHT: (C)2011,JPO&INPIT |
