The paper aims to study influences of plateau environment on military off-road vehicles and put forward countermeasures for improving plateau environmental worthiness of military off-road vehicles. The climate and geogra-phy environmental characteristics of plateau area were summarized. Influences of plateau environment on military off-road vehicle performance, such as power, economy, cold starting, thermal balance and braking performance were tested and analyzed in plateau. According to the power system, vehicle chassis system and vehicle cab, some measures were put forward to improve military off-road vehicle performance at plateau, such as high pressure common rail fuel in-jection technology, regulated turbocharging technology, cold start at low pressure and temperature, thermal balance con-trol, four wheels steering, suspension enhancement technology, auxiliary braking technology, central tire inflation defla-tion system, human-machine engineering. It provides reference for improving plateau environmental worthiness of mili-tary off-road vehicle.%目的 研究高原环境对军用越野汽车性能的影响,提出提高军用越野汽车高原环境适应性的技术措施.方法 简要介绍高原地区的气候和地理环境条件特点,通过高原实地试验分析高原环境条件对军用越野汽车动力性能、经济性能、起动性能、热平衡和制动等性能的影响规律和影响机理.结果 针对军用越野汽车的动力系统、底盘系统和驾驶室人-机环境等,提出了采用高压共轨燃油喷射、可调高增压、低气压低温起动、热平衡控制、四轮转向、悬架增强、辅助制动、轮胎中央充放气以及驾驶室高原人-机工程等提高军用越野汽车高原环境适应性的技术对策和建议.结论 为提高军用越野汽车高原环境适应性提供了指导.
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