Browse Publications Technical Papers 2005-01-0036
2005-04-11

SI Engine Load Torque Estimator Based on Adaptive Kalman Filter and Its Application to Idle Speed Control 2005-01-0036

The paper presents a detailed design procedure of an SI engine load torque estimator based on an adaptive Kalman filter. The adaptation mechanism is based on a simple and robust load torque change detection algorithm. The presented simulation and experimental results point out that the estimator is characterized by a fast response and good noise suppression. The proposed estimator is used to establish a fast load torque compensation path in an idle speed control system. The presented simulation and experimental results show that this yields a significant improvement of idle speed control performance

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