| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel supply control device and a fuel supply system using the same, for correcting control gain to a quantity adjusting actuator based on behavior of actual common rail pressure. <P>SOLUTION: This fuel supply control device arithmetically operates amplitude of the actual common rail pressure (S308 and S310), when a condition is realized for correcting the control gain of feedback control to a quantity adjusting valve 18 for adjusting a delivery quantity of a high pressure pump (S300, S302, S306:Yes). When the amplitude is not an abnormal range (S312:No), a correction frequency of the control gain is less than a predetermined frequency (S314:No) and the amplitude is larger than predetermined amplitude (S318:No), the fuel supply control device calculates a correction quantity for reducing the control gain of the feedback control (S322), and sets the correction quantity as the control gain (S324). When the amplitude becomes the predetermined amplitude or less by reducing the control gain (S318:Yes), the fuel supply control device finishes a correction of the control gain. <P>COPYRIGHT: (C)2009,JPO&INPIT |
