自适应路况的插电式混合动力汽车能量管理策略

发布时间：2018-01-13 23:12

本文关键词：自适应路况的插电式混合动力汽车能量管理策略　出处：《中国公路学报》2016年09期 　论文类型：期刊论文

【摘要】：为了在不牺牲油耗和行驶里程的条件下优化插电式混合动力汽车的能量分配过程,提升插电式混合动力汽车的节能潜力以及续航能力,提高插电式混合动力汽车能量管理策略的鲁棒性,以等效燃油消耗最小策略为基础,结合车辆对行驶路况变化的适应性研究,制定了相应的能量管理策略。以标准工况数据为基础开发车辆行驶路况识别器,在标准工况中选取相关的特征值参数,建立特征值参数矩阵。利用标准工况特征值参数矩阵训练BP神经网络识别器,使之能够完成对不同行驶路况的识别。将识别后的路况结果传递给以等效燃油消耗最小策略为基础的能量管理策略,针对不同的行驶路况给出能量流动的优化控制。研究结果表明:在完成对行驶路况的自适应识别之后,插电式混合动力汽车的发动机工作点更加集中在BSFC曲线附近,发动机工作在高效率区间的频率提升;使用自适应路况能量管理策略的插电式混合动力汽车,根据识别后的路况可灵活调整发动机和电池的能量输出,降低油耗并保护了电池的寿命。
[Abstract]:In order to optimize the energy distribution process of plug-in hybrid vehicle without sacrificing fuel consumption and driving mileage, the energy saving potential and endurance of plug-in hybrid vehicle are improved. The robustness of the energy management strategy of plug-in hybrid electric vehicle is improved. Based on the minimum equivalent fuel consumption strategy, the adaptability of vehicle to road conditions is studied. The corresponding energy management strategy is established. Based on the standard working condition data, the vehicle driving condition recognizer is developed, and the relevant eigenvalue parameters are selected in the standard working condition. The eigenvalue parameter matrix is established and BP neural network recognizer is trained by using the eigenvalue parameter matrix of standard working condition. So that it can complete the recognition of different road conditions. The results of the identified road conditions are transferred to the energy management strategy based on the equivalent fuel consumption minimum strategy. The optimal control of energy flow is given for different driving conditions. The results show that: after the adaptive recognition of driving conditions is completed. The engine working point of plug-in hybrid vehicle is more concentrated in the vicinity of BSFC curve, and the frequency of engine working in high efficiency range is increased. The plug-in hybrid vehicle with adaptive road condition energy management strategy can flexibly adjust the energy output of the engine and battery according to the identified road conditions, reduce fuel consumption and protect the battery life.
【作者单位】：中国汽车工程研究院动力总成技术研究中心;
【基金】：“十二五”国家科技支撑计划项目(2015BAG17B00)
【分类号】：U469.7
【正文快照】： 0引言插电式混合动力汽车是一种综合了纯电动汽车和混合动力汽车优点的新型交通工具。与二者相比,它有更合理的燃油经济性和行驶里程。为了达到节能环保的目的,研究人员对插电式混合动力汽车的研究和发展给予了极大的关注[1-4]。在串-并联式插电式混合动力汽车中,发动机可驱动

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