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.

在加拿大各地的高速公路上，长长的组合车辆（LCV）越来越多地使用。 LCV由拖拉机和两个拖车组成，每个拖车的长度为16.2 m，车辆的总长度可以为40 m。 LCV的两个主要配置是A-和B-Train。与拖拉机/半拖车组合相比，LCV的使用可能会导致行驶里程降低45％，燃油消耗和温室气体排放量下降了30％，道路磨损降低了40％。但是，A型训练表现出较低的横向稳定性，B型训练表现出差的可操作性，而LCV的方向性不令人满意可能导致交通事故。现有的高速公路坡道/互换的几何特征是在1950年代 - 70年代设计的，没有充分考虑LCV的性能度量。由于方向性较差，因此仅允许LCV在指定的安大略高速公路部分上行驶。加拿大的漫长而严重的冬季模式进一步降低了LCV安全性。我们认为，通过允许卡车运输行业和道路系统从这些车辆的积极影响中受益，例如较低的运输成本，较轻的环境影响，更轻的环境影响，，为加拿大人开发自适应主动拖车转向（AATS）系统将对加拿大人产生多重影响。并减少了道路损失，同时减轻了增加交通事故和拥堵的不利风险。拟议的项目旨在开发AATS技术，以提高B型培训的低速机动性，并增强A型培训的高速横向稳定性。基于我们先前对主动拖车转向的调查，AATS系统将以高可靠性，对操作条件变化的适应性和耐故障设计的特征开发。我们将通过进行相互关联的调查来开发创新的AATS技术：1）探索对主动拖车转向的适应性和耐受性控制； 2）制造AAT的原型并基于驾驶员硬件实时模拟验证技术。该研究将解决阻碍AATS技术成为可销售产品的问题。