燃料电池轿车动力系统及其零部件道路模拟试验

利用远程参数控制技术,在实验室内复现实际道路行驶状况的振动载荷谱,分别利用4通道道路模拟试验台和6自由度振动试验台,进行燃料电池轿车整车、动力系统关键零部件,包括动力蓄电池、动力控制单元、燃料电池电堆和燃料电池发动机支持系统的振动加载室内试验.试验中,考察振动强度、系统故障、动力系统和关键部件性能衰退,发现动载会引起所研究的燃料电池轿车整车燃料经济性下降17.59%,且会引起动力系统与关键部件的结构破坏与部件故障.

Investigation Into Road Simulation Experiment of Powertrain and Its Key Components of a Fuel Cell Passenger Car

An elementary but integrated experiment is described, including the real road load sample on proving ground,road load reproduction on vibration test rig, total vehicle road simulation test and key components vibration tests. Remote parameter control technology is adopted to reproduce the real road load on 4 poster road simulator and six degree of freedom vibration table which are used respectively for total vehicle and components vibration tests. After the total vehicle vibration test, vehicle driving performance and fuel economy are regularly measured on chassis dynamometer to validate powertrain system degradation resulting from vibration.The fuel economy was found to have decreased by 17.59% and structural damage of vehicle body structure and components were observed in the evaluation of structure strength and operation malfunction of powertrain system.The systematic experiment process and validation method helped to improve the durability,reliability and life of fuel cell vehicle, powertrain and its key components.