关键词: 车载氢系统；镁合金；安全可靠；轻量化

Abstract: In order to ensure the safe operation of the vehicle, avoid the cylinder bracket fracture safety, requires the strength of the hydrogen storage system framework is higher, not only to meet the requirements of national standard, also need to ensure that the vehicle hydrogen leakage in the process of collision. In this paper, the hydrogen storage system framework of a fuel cell tractor is taken as the prototype, and it uses magnesium alloy instead of steel material to analyze whether the magnesium alloy can meet the requirements of the framework strength of the hydrogen storage system, and achieve the lightweight goal of the whole vehicle and increase the revenue of customers.

Key words: On-board hydrogen system; Magnesium alloy; Safe and reliable; Lightweight