通过对电控汽油机燃油反馈系统中起关键作用的氧传感器的故障实验,在不同工作条件下,研究氧传感器正常工作或模拟失效时对汽油机的各项运行参数及排放物的影响。通过对实验结果的统计与分析,提出基于氧传感器的燃油反馈系统在电控汽油机不同运行阶段的控制方法和控制策略。%This article aims at the effect of the regular work and simulation failure of the oxygen sensor on the operation parameters and emissions of the engine in different conditions,by the fault test to the oxygen sensor which plays a key role in the electronic control engine fuel feedback system.Through the statistics and the analysis to the test result,this article proposes the control method and control strategy to the oxygen sensors fuel feedback system in different operational stages of electronic-controlled engine.
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