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发明公开
CN106762057A 用于柴油微粒过滤器效率评估的发动机控制 无效 - 驳回

用于柴油微粒过滤器效率评估的发动机控制
摘要：
本发明公开了一种用于控制配备有柴油微粒过滤器(DPF)的柴油发动机的方法。该方法包括：检测发动机的稳态操作，在稳态操作期间，该发动机产生引导至DPF中的第一微粒物质(PM)流量。该方法还包括：在稳态操作期间，触发至发动机的排气再循环，由此将大于第一流量的第二PM流量引导至DPF。另外，该方法包括：响应于引导至DPF中的第二PM流量，而检测离开DPF的PM流量。该方法还包括：将检测到的离开DPF的PM流量与PM流量阈值进行比较。此外，该方法包括：如果检测到的离开DPF的PM流量大于PM流量阈值，则调节燃料喷射以使DPF再生。
摘要（英）：

A method is disclosed for controlling a diesel engine equipped with a diesel particulate filter (DPF). The method includes detecting steady state operation of the engine generating a first flow rate of particulate matter (PM) directed into the DPF. The method also includes, during the steady state operation, triggering exhaust gas recirculation to the engine and thereby directing a second PM flow rate that is greater than the first flow rate into the DPF. The method additionally includes detecting a PM flow rate exiting the DPF in response to the second PM flow rate directed into the DPF. The method also includes comparing the detected PM flow rate exiting the DPF with a PM flow rate threshold. Furthermore, the method includes regulating injection of fuel to regenerate the DPF, if the detected PM flow rate exiting the DPF is greater than the PM flow rate threshold.

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