同济大学学报（自然科学版）2024，Vol.52Issue(z1)：9-19,11.DOI:10.11908/j.issn.0253-374x.24784
驾驶性能虚拟验证的动力总成试验台特性分析
Characterization of a Powertrain Test Bed in the Context of Virtual Validation of Drivability
Schmidt HENRIK 1Prokop GÜNTHER1
作者信息
- 1. 德累斯顿工业大学 汽车工程系,德累斯顿 01069,德国
- 折叠
摘要
Abstract
Technological trends in the automotive industry toward a software-defined and autonomous vehicle require a reassessment of today's vehicle development process.The validation process soaringly shapes after starting with hardware-in-the-loop testing of control units and reproducing real-world maneuvers and physical interaction chains.Here,the road-to-rig approach offers a vast potential to reduce validation time and costs significantly.The present research study investigates the maneuver reproduction of drivability phenomena at a powertrain test bed.Although drivability phenomena occur in the frequency range of most up to 30∙Hz,the design and characteristics substantially impact the test setup's validity.By utilization of modal analysis,the influence of the test bed on the mechanical characteristic is shown.Furthermore,the sensitivity of the natural modes of each component,from either specimen or test bed site,is determined.In contrast,the uncertainty of the deployed measurement equipment also affects the validity.Instead of an accuracy class indication,we apply the ISO/IEC Guide 98 to the measurement equipment and the test bed setup to increase the fidelity of the validation task.In conclusion,the present paper contributes to a traceable validity determination of the road-to-rig approach by providing objective metrics and methods.关键词
动力总成试验台/虚拟验证/模态分析/动力总成硬件在环/驾驶性能/测量不确定度Key words
powertrain test bed/virtual validation/modal analysis/powertrain-hardware-in-the-loop/drivability/measurement uncertainty分类
能源科技引用本文复制引用
Schmidt HENRIK,Prokop GÜNTHER..驾驶性能虚拟验证的动力总成试验台特性分析[J].同济大学学报（自然科学版）,2024,52(z1):9-19,11.
