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公开(公告)号：US6155242A
公开(公告)日：2000-12-05
申请号：US296184
申请日：1999-04-26
CPC分类号： F02D41/1401 , F02D41/182 , F02D2041/1409 , F02D2041/1432 , F02D2041/1433 , F02D2200/0402
摘要： An air/fuel ratio control method for an internal combustion engine corrects airflow prediction errors. The method compares the current airflow to the value that was predicted several events in the past and creates an error signal. Based on this error signal, the current fueling is adjusted. These two mixtures, with equally offsetting lean and rich air/fuel ratios allow the catalytic converter to operate at peak efficiency despite prediction errors.
摘要翻译： 用于内燃机的空气/燃料比控制方法校正气流预测误差。 该方法将当前气流与过去预测的几个事件的值进行比较，并产生误差信号。 基于该误差信号，调整当前的加油。 这两种混合物具有均匀偏移的稀薄和丰富的空气/燃料比，允许催化转化器尽管预测误差而以最高效率运行。
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公开(公告)号：US5970961A
公开(公告)日：1999-10-26
申请号：US18625
申请日：1998-02-04
IPC分类号： F02M25/07
摘要： A valve control method for controlling a closed valve position of an exhaust gas recirculation valve for an internal combustion engine includes a feedback correction loop generating a feedback variable by comparing the output of a valve position sensor to a desired closed valve position. The feedback variable is used to control an actuator coupled to the valve which cooperates with a compliant seat. Thus, the desired closed position is maintained in a ready to open state, reducing valve opening delay caused by biasing forces.
摘要翻译： 用于控制用于内燃机的排气再循环阀的关闭阀位置的阀控制方法包括反馈校正回路，其通过将阀位置传感器的输出与期望的闭合阀位置进行比较来产生反馈变量。 反馈变量用于控制联接到阀的致动器，其与顺应性座椅配合。 因此，期望的关闭位置保持在准备打开状态，减少由偏置力引起的阀打开延迟。
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