作者：鲁楠, 唐岚, 王瀚, 赵歆

作者单位：西华大学汽车与交通学院，四川 成都 610039

关键词：制动能量回收;电池寿命;零和博弈;PHEV

摘要：

新能源客车的再生制动过程将车辆动能转换为电能充入动力电池，实现能量的回收利用。为兼顾再生制动过程中的能量回收和电池寿命保护，针对某PHEV车型提出一种基于零和博弈的制动能量回收策略。通过建立优化目标和转矩分配的二人零和博弈模型，运用线性加权法得到Nash均衡，构造制动转矩分配问题的多目标优化代价函数。在Matlab/Simulink环境中进行仿真分析，该控制策略实现稳定制动的同时对再生制动大电流充电进行有效限制，表明基于零和博弈的制动能量回收控制策略能够实现制动力矩的合理分配，具有保护电池寿命的效果。

Brake energy recovery control strategy for plug-in hybrid electric vehicle based on zero-sum game
LU Nan, TANG Lan, WANG Han, ZHAO Xin
School of Automobile and Transportation, Xihua University, Chengdu 610039, China
Abstract: During the regenerative braking process of the new energy bus, the vehicle converts the kinetic energy into electric energy and charges it into the power battery to realize energy recycling. In order to balance energy recovery and battery life protection, a zero-sum game-based braking energy recovery strategy is proposed for a PHEV model. In this paper, a two-person zero-sum game model of optimization target and torque distribution is established. The Nash equilibrium is obtained by linear weighting method, and the multi-objective optimization cost function of braking torque distribution problem is constructed. The simulation analysis is carried out in the Matlab/Simulink environment. This control strategy achieves stable braking and effectively limits the high current charging caused by regenerative braking. The results show that the braking energy recovery control strategy based on zero-sum game can realize the reasonable distribution of braking torque and has the effect of protecting battery life.
Keywords: braking energy recovery;battery life;zero-sum game;PHEV
2020, 46(3):128-134  收稿日期: 2019-03-04;收到修改稿日期: 2019-06-15
基金项目: 四川省科技支撑重点项目（2019YFG0042）；西华大学研究生创新基金（ycjj2017089，ycjj2018101）
作者简介: 鲁楠(1992-),男,安徽桐城市人,硕士研究生,专业方向为新能源汽车的能量管理策略
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