Development of an adaptive active trailer steering system for long combination vehicles

长组合车辆自适应主动拖车转向系统的开发

• 批准号: 490843-2015
• 负责人: He, Yuping
• 金额: $ 2.6万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618540
• 关键词: Development; adaptive; active; trailer; steering

Long combination vehicles (LCVs) are increasingly used on highways across Canada. An LCV consists of a tractor and two trailers, the length of each trailer is 16.2 m, and the total length of the vehicle can be 40 m. Two main configurations of LCVs are A- and B-train. Compared with a tractor/semi-trailer combination, the use of an LCV can result in 45% reduction in mileage travelled, 30% drop in fuel consumption and greenhouse gas emissions, and 40% decrease in road wear. However, A-trains exhibit low lateral stability, B-trains show poor maneuverability, and the unsatisfactory directional performance of LCVs may lead to traffic accidents. The geometric features of existing highway ramps/interchanges were designed during the 1950s-70s without adequately considering the performance measures of LCVs. Due to the poor directional performance, LCVs are only allowed to travel on designated Ontario highway sections. Canada's long and severe winter patterns further degrade LCV safety. We believe that developing an adaptive active trailer steering (AATS) system for LCVs will have a multifold impact on Canadians by allowing the trucking industry and road systems to benefit from the positive effects of these vehicles, e.g., lower shipping costs, lighter environmental impact, and reduced road damage, while mitigating the adverse risks of increased traffic accidents and congestion. The proposed project aims at developing the AATS technology to improve the low-speed maneuverability of B-trains and enhance the high-speed lateral stability of A-trains. Built upon our previous investigations on active trailer steering, the AATS system will be developed with distinguished features in terms of high reliability, adaptability to operating condition variation, and fault-tolerant design. We will develop the innovative AATS technology by performing interrelated investigations: 1) exploring adaptive and fault-tolerant control of active trailer steering; and 2) fabricating AATS prototypes and validating the technology based on driver-hardware-in-the-loop real-time simulation. The research will resolve the problems that are impeding the AATS technology from becoming a marketable product.

长组合车辆 (LCV) 在加拿大各地的高速公路上越来越多地使用。轻型商用车由一辆牵引车和两辆拖车组成，每辆拖车的长度为16.2 m，整车总长可达40 m。轻型商用车的两种主要配置是 A 型和 B 型。与牵引车/半挂车组合相比，使用轻型商用车可减少 45% 的行驶里程，减少 30% 的油耗和温室气体排放，并减少 40% 的道路磨损。然而，A类列车的横向稳定性较差，B类列车的机动性较差，轻型商用车的方向性能不理想可能会导致交通事故。现有高速公路匝道/立交桥的几何特征是在 20 世纪 50 年代至 70 年代设计的，没有充分考虑轻型商用车的性能指标。由于方向性能较差，轻型商用车仅允许在安大略省指定的高速公路路段上行驶。加拿大漫长而严酷的冬季进一步降低了轻型商用车的安全性。我们相信，为轻型商用车开发自适应主动拖车转向（AATS）系统将对加拿大产生多重影响，让卡车运输业和道路系统受益于这些车辆的积极影响，例如降低运输成本、减轻环境影响和减少道路损坏，同时减轻交通事故和拥堵增加的不利风险。该项目旨在开发AATS技术，以提高B列车的低速机动性和增强A列车的高速横向稳定性。基于我们之前对主动挂车转向的研究，AATS 系统将在高可靠性、对操作条件变化的适应性和容错设计方面具有显着的特点。我们将通过进行相关研究来开发创新的AATS技术：1）探索主动拖车转向的自适应和容错控制； 2) 制作 AATS 原型并验证基于驱动程序硬件在环实时仿真的技术。该研究将解决阻碍 AATS 技术成为市场产品的问题。