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发明公开
CN108374742A 用于确定汽油发动机的参考空气流致动器位置的方法 有权

用于确定汽油发动机的参考空气流致动器位置的方法
摘要：
一种用于确定汽油发动机的参考致动器位置的方法包括将基本转矩请求、已知火花提前量、已知CAM位置以及已知废气再循环(EGR)阀位置输入至逆转矩模型中以产生第一迭代期望单缸空气(APC)值。使第一迭代期望APC值通过死区滤波器以产生经滤波的第一迭代期望APC信号。针对经滤波的第一迭代期望APC值计算预测为标定(PAC)火花提前量。修改PAC火花提前量和基本转矩请求，且输入来自第一查找表的数据以产生第二迭代期望APC值。
摘要（英）：

A method to determine reference actuator positions for a gasoline engine, includes entering a base torque request, a known spark advance, a known CAM position and a known exhaust gas recirculation (EGR) valve position into an inverse torque model to generate a first iteration desired air per cylinder (APC) value. The first iteration desired APC value is passed through a deadband filter to producea filtered first iteration desired APC signal. A Predicted As Cal (PAC) spark advance is calculated for the filtered first iteration desired APC value. The PAC spark advance and the base torque request are modified, and data from a first lookup table is entered to generate a second iteration desired APC value.

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