汽车分层耦合电驱动构型、参数匹配与能效分析

doi:10.3901/JME.2019.22.021

机械工程学报 ›› 2019, Vol. 55 ›› Issue (22): 21-32.doi: 10.3901/JME.2019.22.021

• 系统设计、分析与匹配 • 上一篇下一篇

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汽车分层耦合电驱动构型、参数匹配与能效分析

陈仙宝^1,2, 舒红宇^1,2, 宋义彤^1,2, 张富森^1,2

1. 重庆大学机械传动国家重点实验室重庆 400044;
2. 重庆大学汽车工程学院重庆 400044

收稿日期:2019-08-26 修回日期:2019-11-16 出版日期:2019-11-20 发布日期:2020-02-29
通讯作者: 舒红宇(通信作者),男,1963年出生,博士,教授,博士研究生导师。主要研究方向为汽车传动、汽车动力学与控制、汽车分布式电驱动设计与控制等。E-mail:shycqu616@163.com
作者简介:陈仙宝,男,1989年出生,博士研究生。主要研究方向为新能源汽车电驱动系统、轮毂电机及其控制等。E-mail:cxbcqu@163.com
基金资助:
国家自然科学基金（51975069）、重庆市自然科学基金（cstc2018jcyjAX0077）和重庆市研究生科研创新（CYB18059）资助项目。

Configuration, Parameter Matching and Energy Efficiency Analysis of the Layered Coupled Electric Drive Applied for Vehicles

CHEN Xianbao^1,2, SHU Hongyu^1,2, SONG Yitong^1,2, ZHANG Fusen^1,2

1. State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044;
2. School of Automotive Engineering, Chongqing University, Chongqing 400044

Received:2019-08-26 Revised:2019-11-16 Online:2019-11-20 Published:2020-02-29

摘要/Abstract

摘要： 提出一种由上层的前后轴转矩耦合与下层的电动轮内双子电机转速耦合构成的新型汽车分层耦合电驱动方案，以实现整车在较宽的转矩和车速范围内保持高效驱动。详细阐述该分层耦合电驱动的构型及其工作模式；以动力性指标和循环工况为基础，对整车峰值/常规动力需求进行统计分析，继而确定了分层耦合电驱动系统的峰值/额定工作特性；基于能量效率最优的模式切换策略，获得了分层耦合电驱动的整车等效MAP特性；对比分析分层耦合电驱动与传统单电机减速轮毂驱动的整车能效特性。结果表明，新型的汽车分层耦合电驱动方案能有效地拓宽整车高效运行区间，实现在更宽的转矩-车速范围内高效（宽域高效）驱动，明显地提升了整车经济性。

关键词: 汽车分层耦合电驱动, 宽域高效, 双子电动轮, 转矩耦合, 转速耦合, 整车峰值/常规动力需求

Abstract: Anovel vehicle layered coupled electric drive configuration is proposed, which is composed of the front and rear axle torque coupling in the upper layer and the dual-motor speed coupling in the electric wheel in the lower layer. The configuration and working modes of the layered coupled electric drive are described in detail. Based on the dynamic performance indexes and cycle conditions, the peak/common power demand of the vehicle is statistically analyzed, and then the peak/rated performance of the layered coupled electric drive is determined. Based on the mode switching strategy with the best energy efficiency, the equivalent MAP characteristics of the vehicle with the layered coupled electric drive are obtained. The vehicle efficiency performance of the layered coupled electric drive and conventional single motor hub drive are compared and analyzed. The analysis results show that the proposed layered coupled electric drive configuration can effectively broaden the vehicle's efficient operating region, realize the wide range of torque-speed efficient driving, and evidently improve the vehicle economy.

Key words: vehicle layered coupled electric drive, wide-domain efficient, dual-motor electric wheel, torque coupling, speed coupling, peak/common power requirements of the vehicle

中图分类号:

U463

陈仙宝, 舒红宇, 宋义彤, 张富森. 汽车分层耦合电驱动构型、参数匹配与能效分析[J]. 机械工程学报, 2019, 55(22): 21-32.

CHEN Xianbao, SHU Hongyu, SONG Yitong, ZHANG Fusen. Configuration, Parameter Matching and Energy Efficiency Analysis of the Layered Coupled Electric Drive Applied for Vehicles[J]. Journal of Mechanical Engineering, 2019, 55(22): 21-32.

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汽车分层耦合电驱动构型、参数匹配与能效分析

Configuration, Parameter Matching and Energy Efficiency Analysis of the Layered Coupled Electric Drive Applied for Vehicles

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