基于智能轮胎的高阶全状态底盘集成控制机理与策略研究

项目名称： 基于智能轮胎的高阶全状态底盘集成控制机理与策略研究

项目编号： No.51205156

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 机械工程学科

项目作者： 赵健

作者单位： 吉林大学

项目金额： 25万元

中文摘要： 汽车底盘集成控制可以通过集成各动力学子系统使车辆性能达到综合最优，如何提高系统的集成化程度和精度已成为当前的研究热点和前沿。但是，现有研究大多基于2或3自由度参考模型，采用分层机制实现集成控制，限制了控制集成度的进一步提高；同时，轮胎力大多采用动力学估算方法得到，控制精度有限。本项目将基于MEMS三轴加速度传感器的智能轮胎引入到底盘集成控制系统，研究高阶全状态底盘深度集成控制机理与策略。开发基于胎冠内壁加速度响应频域特性的轮胎力测算方法，实现轮胎力实时反馈；探索分析车体全自由度动力学耦合与协调机理以及包含状态量高阶项的结构非线性系统特性；并以此为基础，设计车体系统与车轮系统全状态集成高阶非线性控制策略与算法。本项目的开展，可以突破现有整车动力学控制与车轮动力学控制的分层结构局限，实现更多控制目标和更多整车自由度的高度集成，同时，可以准确预估轮胎附着潜力，有效提升整车控制精度和综合行驶性能。

中文关键词： 车辆工程；智能轮胎；轮胎力及附着估计；底盘集成控制；高阶系统全状态控制

英文摘要： The Integral Chassis Control System provides optimal vehicle performance through the integration of the various dynamics subsystem. It is one of the hotspots on leading-edge about how to improve the integration level and accuracy of the system. However, the improvement of further system integration will be limited using existing 2 DOF (degrees-of-freedom) or 3 DOF reference model based hierarchical integration mechanisms. Furthermore, tire forces are achieved by estimation generally, which restricts the precision of control. In this project, the deep-level integral chassis control theory and strategy will be researched based on intelligent tire system with MEMS tri-axial accelerometers mounted on the inner linear of the tread. First, a tri-axial acceleration frequency-domain response based method for tire force measurement and estimation will be put forward. It means that real-time tire force feedback could be achieved. Second, dynamic coupling and coordination based on all degrees of freedom of the vehicle body will be researched. Additionally, the structural nonlinearity of system with high-rank state variables will also be studied. Finally, the high-rank nonlinear control strategy and algorithm for full-states with vehicle body and wheel systems integration is going to be achieved. The results could lead to a

英文关键词： Vehicle Engineering；Intelligent Tire；Estimation of Tire Force and Friction；Integrated Chassis Control；High-order Full-state Control