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基于进气歧管压力,设计开发的EGR阀流量检测策略。车辆断油滑行阶段,主动开启EGR阀,监测进气歧管压力变化,判定EGR阀流量故障。
Based on the intake manifold pressure, EGR valve flow detection strategy was designed and developed. Vehicle off the oil sliding stage, take the initiative to open the EGR valve to monitor the intake manifold pressure changes, determine the EGR valve flow failure.