| 摘要 |
PURPOSE:To eliminate the need to measure a conversion coefficient strictly by an experiment and to perform cost resultion, by converting fuel consumption accurately in conformity to individual characteristics even if fuel injection valves have variance in charactersistics. CONSTITUTION:A clock pulse S0 and an injection pulse S for indicating the opening of a fuel injection valve are inputted to an AND gate 3, and consequently an arithmetic circuit 5 converts fuel consumption. The arithmetic circuit 5 uses converted fuel consumption Q1 when the output signal of a full-tank switch (SW) 7 has on-to-off transistion and converted fuel consumption Q2 when the output signal of a remaining amount switch SW8 has on-to-off transistion to file such a correction coefficient that C=Q2-Q1/V1-V2=K0/m. Then, CK0= m, so a correct conversion coefficient is obtained. Thus, a new conversion coefficient is used to convert fuel consumption correctly. |
