基于能耗优化的电动轮汽车转矩动态分配

陈浩; 袁良信; 郑四发; 连小珉

doi:10.16511/j.cnki.qhdxxb.2019.22.041

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清华大学学报（自然科学版） ›› 2020, Vol. 60 ›› Issue (2) : 132-138. DOI: 10.16511/j.cnki.qhdxxb.2019.22.041

专题：电动汽车

基于能耗优化的电动轮汽车转矩动态分配

陈浩¹, 袁良信¹, 郑四发^1,2, 连小珉¹

作者信息 +

Dynamic torque allocation for in-wheel motor driven vehicle based on energy consumption optimization

CHEN Hao¹, YUAN Liangxin¹, ZHENG Sifa^1,2, LIAN Xiaomin¹

Author information +

文章历史 +

摘要

电动轮汽车具有转矩独立可控、反馈信息易获取等特点。该文以电动轮汽车转矩矢量控制系统为基础，提出一种转矩动态分配方法，选取整车能耗作为目标函数，考虑电机实时能力的改变与驾驶员需求，建立了带约束的非线性优化模型。通过对优化问题的分解及转矩可行空间的离散化，解决了约束变化与在线优化实时性之间的矛盾。搭建MATLAB/Simulink-Cruise联合仿真平台，设置新欧洲循环（NEDC）测试工况及其市区循环工况以验证算法的可行性与鲁棒性。仿真结果表明：所提出的方法有效降低了整车能耗，且具有良好的容错能力。

Abstract

In-wheel motor driven vehicles can provide independent control of the driving torque to each wheel and easy access to feedback information. This paper presents a dynamic torque allocation method based on the torque vectoring control system of an in-wheel motor driven vehicle. The vehicle energy consumption is used as the objective function. Changes in the real-time capabilities of the motors and the driver's demands are used to build a constrained nonlinear optimization model. The optimization problem is decomposed into parts while the feasible torque space is discretized to resolve the contradiction between the constraint changes and the real-time requirement of the online optimization. A MATLAB/Simulink-Cruise simulation platform is used to verify the algorithm's feasibility and robustness for a new European driving cycle (NEDC) and an urban driving cycle. The simulations show that this method effectively reduces the vehicle energy consumption and has good fault tolerance.

导出引用

陈浩, 袁良信, 郑四发, 连小珉. 基于能耗优化的电动轮汽车转矩动态分配[J]. 清华大学学报（自然科学版）. 2020, 60(2): 132-138 https://doi.org/10.16511/j.cnki.qhdxxb.2019.22.041

CHEN Hao, YUAN Liangxin, ZHENG Sifa, LIAN Xiaomin. Dynamic torque allocation for in-wheel motor driven vehicle based on energy consumption optimization[J]. Journal of Tsinghua University(Science and Technology). 2020, 60(2): 132-138 https://doi.org/10.16511/j.cnki.qhdxxb.2019.22.041

参考文献

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基金

连小珉,教授,E-mail:lianxm@tsinghua.edu.cn

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收稿日期	出版日期
2019-04-22	2020-02-15
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2020-01-15

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