Study on Optimizing Torque Distribution Strategy for Independent 4WD Electric Vehicle

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Study on Optimizing Torque Distribution Strategy for Independent 4WD Electric Vehicle

更新时间：2025-07-09

- Study on Optimizing Torque Distribution Strategy for Independent 4WD Electric Vehicle
- Vol. 46, Issue 3, Pages: 42-46+68(2012)
- 作者机构：
  
  西安交通大学电动汽车与系统控制研究所,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP273
- Online First：10 March 2012，
  
  Published：2012
- 稿件说明：
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Study on Optimizing Torque Distribution Strategy for Independent 4WD Electric Vehicle[J]. 2012, 46(3): 42-46+68.
DOI：

Study on Optimizing Torque Distribution Strategy for Independent 4WD Electric Vehicle[J]. 2012, 46(3): 42-46+68. DOI：

摘要

为了充分发挥四轮驱动电动汽车转矩独立可控的优势

提出了一种以提高驱动系统能效为目标的转矩分配策略.系统能效目标函数中包含了稳定性和经济性2个指标

旨在满足稳定行驶的同时尽量降低车辆的能量消耗.在横摆力矩、最大附着力和最大驱动力的约束条件下

对目标函数进行了求解

并利用MATLAB软件进行了仿真分析.结果表明

优化分配策略在保证车体稳定行驶的前提下

能够明显减少驱动系统的能量消耗

提高车体的系统能效.

Abstract

An optimization method of torque distribution for four wheels controlled independently was proposed to improve the drive system efficiency under the stable conditions. Both electric vehicle(EV)stability and EV fuel economy were considered in the efficiency target index. The solution of the target index was derived under the constraint conditions of sway torque requirement

maximum adhesion

and maximum driving force. The simulation analysis was performed with MATLAB. The simulation results show that the optimized distribution can reduce the energy consumption obviously and increase the system efficiency under the stable conditions.

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Keywords

references

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Related Institution

Research and Development Center of Electric Vehicle, Xi'an Jiaotong University

The 71811 Unit of PLA

Institute for Electric Vehicle and System Control, Xi'an Jiaotong University

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