主动液压互联悬架与车辆稳定性控制系统协同控制方法研究

Vehicle lateral stability and handling stability remain as research hotspot for many years. This project aims to develop a novel control method for coordinated use of active suspension and electronic stability program (ESP) in order to comprehensively improve a vehicle's lateral and handling performance. ..In this project, a multi-mode active hydraulically interconnected suspension (active-HIS) which consists of both dampers and actuators and is hydraulically interconnected between the wheel stations will be developed. This novel suspension produces a moment with comparatively very low energy consumption against vehicle roll motion when it makes turns at high speed. Correspondingly, a multi-mode ESP that can work effectively with the active-HIS system will also be investigated. ..Furthermore, an SUV is chosen as a test vehicle for the potential applications of the proposed new technologies. Based on the SUV’s physical and dynamic parameters, a comprehensive simulation model system comprised of a 14-DOF vehicle model, an active-HIS model, and an ESP module will be developed. A series of Carsim/Simulink/AMESim co-simulations, which can effectively verify and analyse the coordinated control effect of active-HIS and ESP, will be conducted. After then, the dynamical performance of the vehicle equipped with these two systems will be studied. ..The project objectives are to develop the theoretical base for the design and analysis of the novel active suspension and its integrated use with ESP, and to develop numerical solution schemes for performance evaluation and to conduct experiment on a real vehicle in order to validate the findings obtained from the analysis and simulation.

车辆的侧向稳定与操纵稳定始终是汽车行业内研究的重点问题之一。本项目从车辆安全技术的必然发展 趋势出发，以SUV车辆为研究对象，以可变结构主动式液压互联悬架和车辆稳定性控制系统为研究内容，建立整车动力学模型，研究主动液压互联悬架与车辆稳定性系统的原理，设计相应结构，开发仿真工具箱并进行相关的实车试验。在此基础上，建立以车辆通过性、侧向稳定性、转向稳定性为目标的综合评价指标体系和评价方法，综合了液压互联悬架与车辆稳定性控制系统的功能特点与优势，协同优化，联合控制，以期综合提升车辆的安全性、稳定性以及舒适性。本项目从理论入手，以仿真和实车试验对研究设计结果进行验证，归纳和总结出一套关于整车行驶安全的多系统集成设计与优化的指导理论、方法和试验指南，为后续车辆相关技术的研究与设计提供借鉴与参考。

操稳性和平顺性是汽车的重要性能，如何提升车辆的操稳性和平顺性成为汽车行业的研究重点问题。本项目以SUV车辆为研究对象，提出了可变结构主动式液压互联悬架系统，搭建了装备主动液压互联悬架的整车动力学模型，完成了液压互联悬架关键参数的灵敏度分析，开展了主动液压互联悬架控制算法研究，包括：车身高度调节、主动抗侧倾控制、可变构型主动液压互联悬架构型切换控制等。设计主动液压互联悬架的结构，开发仿真工具箱并进行相关的实车试验。本项目从理论入手，以仿真和实车试验对研究设计结果进行验证，归纳和总结出一套关于整车行驶安全的多系统集成设计与优化的指导理论、方法和试验指南，为后续车辆相关技术的研究与设计提供借鉴与参考。