Control method of air-fuel ratio
专利汇可以提供Control method of air-fuel ratio专利检索，专利查询，专利分析的服务。并且PURPOSE: To reduce a change factor at learning correction in air-fuel ratio control of a mixture with a recovery vaporized component, by controlling a feed amount of the vaporized component to an engine from a fuel recovery means in accordance with an operational condition.
CONSTITUTION: A signal of air-fuel ratio sensor 14 is integrated in a central processing unit (CPU)100, on the basis of its integration correction, calculated and stored as a correction amount of engine condition correspondingly to its operational condition, then air-fuel ratio is controlled by the both correction amounts. At starting, a previously stored engine condition correction amount is checked, if exceeding a limit value, the correction amount is reset to a prescribed value. Accordingly, at transient or sensor inactive time when feedback control can not be performed, air-fuel ratio can be accurately controlled. Further to decrease a change factor of the engine condition at learning correction operation, vaporized fuel in a fuel tank is not fed by closing a solenoid valve 33, and the air-fuel ratio can be high accurately controlled.
COPYRIGHT: (C)1982,JPO&Japio，下面是Control method of air-fuel ratio专利的具体信息内容。
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