| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel pump control apparatus of an engine that facilitates power saving by suppressing wasteful energy loss including current consumption, and enhances fuel supply accuracy in order to simplify an internal circuit of an ECU. <P>SOLUTION: The fuel pump control apparatus of an engine is configured as follows. A fuel pump is driven suitably to an amount of fuel on the basis of an amount of fuel consumed by an engine. An actual motor speed of the fuel pump is monitored to execute F/B control on the basis of a target motor speed and the actual motor speed of the fuel pump. A duty value equivalent to a deviation between the target motor speed and the actual motor speed is learned and stored in order to correct duty driving of the fuel pump suitably to the state of the engine. <P>COPYRIGHT: (C)2013,JPO&INPIT |
