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Optimization of Energy Recovery Efficiency for Parallel Hydraulic Hybrid Power Systems Based on Dynamic Programming

机译：基于动态规划的并联液压混合动力系统能量回收效率优化

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摘要

In this paper, an optimization algorithm of energy recovery efficiency is proposed for parallel hydraulic hybrid systems (PHHS) using dynamic programming (DP). Global optimal solution of pump displacement and transmission ratio under the known urban drive cycles is obtained by using the DP approach, where the total amount of energy recovery is defined as the cost function, and the pump displacement and the transmission ratio of the torque coupler are defined as the deciding variables. Two major steps are involved in verifying the proposed approach. Firstly, a PHHS Simulink model is accurately obtained by repeated comparison with the bench test. Subsequently, we derive a parallel hydraulic hybrid vehicle (PHHV) from adding a hydraulic hybrid system to an electric vehicle in ADVISOR (advanced vehicle simulator). This vehicle is used to validate the effectiveness of the proposed method in energy recovery efficiency.
机译：本文提出了一种采用动态规划（DP）的并联液压混合动力系统（PHHS）能量回收效率的优化算法。通过DP方法获得了已知市区行驶周期下泵排量和传动比的全局最优解，其中能量回收的总量被定义为成本函数，而泵排量和扭矩耦合器的传动比为定义为决定变量。验证提议的方法涉及两个主要步骤。首先，通过与基准测试反复比较，准确地获得PHHS Simulink模型。随后，我们通过在ADVISOR（高级车辆模拟器）中向电动车辆添加液压混合动力系统来派生并联液压混合动力车辆（PHHV）。该车辆用于验证所提出方法在能量回收效率方面的有效性。

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  • 来源
    《Mathematical Problems in Engineering》 |2019年第5期|9691507.1-9691507.11|共11页
  • 作者

    Ning Xiaobin; Shangguan Jiarong; Xiao Yong; Fu Zhijun; Xu Gaolun; He Anqing; Li Bin;

  • 作者单位

    Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Zhejiang, Peoples R China;

    Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Zhejiang, Peoples R China;

    Zhejiang CRRC Elect Vehicle Co Ltd, Hangzhou, Zhejiang, Peoples R China;

    Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Zhejiang, Peoples R China;

    Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Zhejiang, Peoples R China;

    Zhejiang CRRC Elect Vehicle Co Ltd, Hangzhou, Zhejiang, Peoples R China;

    Concordia Univ, Dept Mech & Ind Engn, Montreal, PQ H3G 1M8, Canada;

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