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发明公开
CN101900024A 排气碳氢化合物喷射控制系统和方法 有权

排气碳氢化合物喷射控制系统和方法
摘要：
本发明涉及排气碳氢化合物喷射控制系统和方法，提供一种系统包括喷射控制模块和燃料膜模块。喷射控制模块控制燃料喷入排气系统的流量以调整排气温度。燃料膜模块根据燃料流量确定燃料在排气系统表面上的积累速率。燃料膜模块根据排气流量确定燃料离开排气系统表面的释放速率。喷射控制模块根据积累速率和释放速率调整燃料流量。
摘要（英）：

The invention relates to an exhaust hydrocarbon injection control system and method. The system comprises an injection control module and a fuel film module. The injection control module controls a flow rate of fuel injected into an exhaust system to adjust a temperature of exhaust gas. The fuel film module determines an accumulation rate of fuel on a surface of the exhaust system based on the flow rate of the fuel. The fuel film module determines a release rate of fuel from the surface of the exhaust system based on a flow rate of the exhaust gas. The injection control module adjusts the flow rate of the fuel based on the accumulation rate and the release rate.

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