Design of Multi-Mode Switch Strategy for Lean Burn Engine Using Driving Pattern Recognition Technique

A multi-mode switch strategy based on driving pattern recognition (DPR) technique used for lean burn engine is proposed in this paper. First, four representative driving patterns (RDP) are selected from nine Taiwan driving patterns. The single-mode switch strategy is then extracted and optimized for each RDP by analyzing the results of dynamic programming. The proposed strategy can select the appropriate single-mode switch strategy using the DPR technique, which is designed to classify the current driving scenario into one of the RDPs. Preliminary results show that the proposed strategy can significantly reduce the fuel consumption without excessive increment of NOx emission across all the test scenarios.