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- W4317383276 abstract "The UEGO sensor is selected for the test. Based on the research on the mathematical model and theoretical calculation of air-fuel ratio, C8051F040 single chip is used as the core microprocessor. The system architecture is composed of four layers: hardware implementation, real-time control, communication and application control. The analyzer adopts high-quality AD module, optimizes FFT algorithm, completes the conversion of time domain signal and frequency domain signal, analyzes and calculates the waveform, and improves the measurement accuracy of air-fuel ratio and excess air coefficient. The test results show that the error between the measured value and the calculated value of the analyzer is controlled within the range of ±0.03λ. Compared with a foreign company’s model of air-fuel ratio analyzer, the maximum relative error of measurement is ±0.08 (when the exhaust gas is too thick or too lean), and the average error of measurement is ± 0.04 (0.8 < λ < 1.3)" @default.
- W4317383276 created "2023-01-19" @default.
- W4317383276 creator A5007977858 @default.
- W4317383276 creator A5039822645 @default.
- W4317383276 date "2022-12-11" @default.
- W4317383276 modified "2023-09-26" @default.
- W4317383276 title "Portable Air-fuel Ratio Analyzer Based on UEGO Sensor" @default.
- W4317383276 doi "https://doi.org/10.1109/tocs56154.2022.10015966" @default.
- W4317383276 hasPublicationYear "2022" @default.
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