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论文类型：期刊论文

发表时间：2017-05-01

发表刊物：IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY

收录刊物：SCIE、EI

卷号：25

期号：3

页面范围：1100-1107

ISSN号：1063-6536

关键字：Internal combustion (IC) engines; policy iteration; residual gas; semitensor product; stochastic multivalued logical dynamics

摘要：This brief investigates the cycle-to-cycle transient behavior of the residual gas fraction (RGF) in terms of systems theory and proposes a multivalued logic-based optimal control strategy for the attenuation of RGF fluctuation. First, an incylinder pressure-based method for measuring RGF is provided, and the stochastic properties of the RGF are examined based on statistical data obtained by conducting experiments on a full-scale internal combustion engine test bench. Based on the observation of the experiment, a stochastic logical transient model is proposed to represent the cycle-to-cycle transient behavior of the RGF. Then, an optimal feedback control law, which targets the rejection of the RGF fluctuation, is derived using the policy iteration algorithm. Finally, the experimental result is demonstrated to show the effectiveness of the proposed optimal control law.