基于智能扭矩分配的四驱汽车动力切换机理与控制方法研究

项目名称： 基于智能扭矩分配的四驱汽车动力切换机理与控制方法研究

项目编号： No.51305004

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 机械、仪表工业

项目作者： 陈黎卿

作者单位： 安徽农业大学

项目金额： 24万元

中文摘要： 智能扭矩管理系统（Torque on Demand，简称TOD）是智能四驱汽车未来发展的一个关键总成部件，但目前尚未完全掌握其核心技术，主要原因是缺乏对其动力切换机理以及控制系统研究。本项目以TOD系统为研究对象，采用数学建模与动力学建模方法，探明不同路面不同工况下TOD系统参数变化对整车性能的影响机制和规律。通过实车试验方法和虚拟样机实验方法相结合，探讨TOD系统与ABS、ESP系统的工作耦合特性，从而界定出TOD系统的工作区域和交叉混合控制区域，揭示动力切换的机理。基于界定的工作区域，以提高整车性能指标为优化目标，研究TOD系统机械结构与控制系统的集成设计。在此基础上，构建TOD系统硬件在环测试平台，开展硬件在环试验和装载试制样件的实车试验，科学准确测定控制系统性能参数，验证控制方法的正确性。其研究成果可为TOD系统的设计与优化提供理论指导，为未来产业化提供理论支撑。

中文关键词： 四驱汽车；扭矩管理系统；动力分配；优化设计；控制策略

英文摘要： Torque on Demand ( it is simply referred to as TOD)will be one of the most important assembly parts of intelligent 4WD vehicle for future development, but now the core technology of TOD has not been fully grasped, for there is lack of sufficient research about the power switching mechanism and the controlling system of TOD. TOD system is taken as the research object,by using the method of mathematical modeling and dynamics modeling, influence mechanism and regular pattern of vehicle performance caused by changed parameters of TOD system are verified under different road surfaces and different working-conditions.The coupling characteristics of TOD system ,ABS and ESP system are discussed by combining the test method for vehicle and virtual experimental method,thereby the work area and cross hybrid control area of TOD system are defined.Based on the working area scope, in order to enhance the vehicle performance as the optimization objective, research on integrated design of TOD system for mechanical structure and control system.On this basis, hardware-in-the-loop testbed of TOD system is constructed, The performance of the control system parameters are detected, and the control strategy is verified correctness.Through the vehicle with loading trial samples is tested, the vehicle performance parameters are detect

英文关键词： 4WD；TOD；Power distribution；Optimized design；Control Strategy