| 摘要 |
PROBLEM TO BE SOLVED: To solve the problems that a detection error is large, a detection delay is caused, and a flow rate detection error is generated in a conventional method in which, when operating an air flow rate for each prescribed time from a frequency output signal of an air flowmeter, the latest one period of the signal is converted into a flow rate for each prescribed time to obtain a detection flow rate. SOLUTION: A control device of an internal combustion engine reduces response delay by performing differential correction of a detection flow rate in a transient region. Further, rather than calculating a flow rate after calculating an average period to perform the conversion into the flow rate, a signal of the air flowmeter is converted into the flow rate for each period to perform average processing by the unit of the flow rate. Accordingly, the flow rate detection error due to nonlinearity between the period and flow rate is reduced. COPYRIGHT: (C)2011,JPO&INPIT |
