| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection system, a compression ignition type internal combustion engine burning liquefied gas fuel and a fuel injection system control method capable of stably supplying the liquefied gas fuel while preventing vaporization thereof by reducing pressure pulsation in a high pressure pump which supplies the liquefied gas fuel sent from a low pressure pump after increasing pressure thereof.SOLUTION: A fuel injection system 1 has a high pressure pump 10 which discharges liquefied gas fuel F supplied from a low pressure pump 12. When determining that pressure pulsation is generated in a gallery 10a of the high pressure pump 10, the fuel injection system 1 performs control of supply pressure of the low pressure pump 12 in a manner that superimposes a stabilization control signal which has an opposite phase to the pressure pulsation and allows correction pressure for stabilizing the pressure pulsation to be generated on a reference control signal corresponding to average target supply pressure of the low pressure pump 12.SELECTED DRAWING: Figure 2 |
