Abstract: There are significant differences between heavy off-road vehicles and ordinary heavyduty trucks in terms of operating conditions and application scenarios. Traditional truck design concepts are difficult to directly adapt to heavy off-road vehicle models. To meet the actual upgrade requirements for installing information equipment on the roof of heavy off-road vehicle cabs, this paper conducts a specialized design study. A research approach combining scheme demonstration, structural design, simulation analysis, and real-vehicle tracking verification is adopted to systematically analyze and optimize the adaptability between the add-on structure and the complete vehicle. This effectively addresses the strength, reliability, and compatibility issues encountered during the installation of information equipment on heavy off-road vehicles, ensuring the vehicles meet the operational requirements under harsh road conditions. The research results can directly support the informationization upgrade of heavy off-road vehicles, while also providing technical approaches and reference basis for the engineering development of roof-mounted equipment on similar commercial vehicle cabs, offering practical application value for enhancing the intelligence and informationization level of special off-road vehicles.

Key words: heavy off-road vehicle; cab roof; add-on installation; structural design; physical vehicle validation

摘要： 重型越野汽车与普通重型载货汽车在使用工况、应用场景上存在显著差异，传统载货 车设计理念难以直接适配重型越野车型。为满足重型越野汽车驾驶室顶盖加装信息化设备的 实际升级需求，文章开展专项设计研究。采用方案论证、结构设计、仿真分析与实车跟踪验 证相结合的研究方法，对加装结构与整车适配性进行系统分析与优化，有效解决了重型越野汽 车信息化设备加装过程中的强度、可靠性及适配性问题，满足整车在恶劣路况下的使用要求。 研究成果可直接支撑重型越野汽车信息化升级，同时为同类商用车驾驶室顶盖加装设备的工程 开发提供技术思路与参考依据，对提升特种越野车辆智能化、信息化水平具有实际应用价值。

关键词: 重型越野汽车；驾驶室顶盖；加装；结构设计；实车验证