| 摘要 |
PURPOSE:To prevent an air-fuel ratio from being transitionally varied owing to errors in suction inflow by correcting a basic fuel supply flow rate determined based on suction inflow when the switchover of auxiliary air is made to either direction between a feeding condition and a cut-off condition. CONSTITUTION:An auxiliary air feeding device D is arranged for an auxiliary air passage connecting a suction passage at the downstream of a suction inflow detecting device A with the combustion chamber C of an engine B. And the auxiliary air feeding device D feeds auxiliary air to the combustion chamber C in a specified operating range based on the output from an air feeding range judging means E. In this constitution, a fuel feeding flow rate is determined based on the output from a suction inflow detecting device A so as to let a means G be arranged, which outputs fuel control signals to a device F feeding fuel to the engine B. In addition, a means M is arranged, which corrects a fuel feeding flow rate when the switchover of auxiliary air is made to either direction between a feeding condition and a cut-off condition based on the output from the air feeding range judging means E. |
