| 摘要 |
PROBLEM TO BE SOLVED: To enhance the engine operability during the idling operation. SOLUTION: When a load of a power steering pump as an auxiliary machine is applied during the idling operation, correction is performed by the highly responsive F/F (Feed Forward) control such as the ignition timing and the fuel injection amount based on the corrected air volume which is a basic value corresponding to the load of the power steering pump. In parallel thereto, the equivalent ratioϕand the correction coefficient (1 -ϕ×B) to perform the negative pressure correction are calculated based on the negative pressure correction coefficient B to be operated from the value QH0 corresponding to the intake negative pressure, the corrected air volume is calculated by multiplying the correction coefficient (1 -ϕ×B) by the air volume corresponding to the load of the power steering pump selecting the basic value and a fluctuation value, whichever is greater. The low responsive F/F control is performed by controlling an electronic-control type control valve and/or a throttle valve interposed in a bypass passage to bypass the throttle valve based on the corrected air volume. COPYRIGHT: (C)2005,JPO&NCIPI |
