基于重型商用车搭载液力缓速器的持续使用性能研究  

Research on Continuous Use Performance Based on Heavy Commercial Vehicle Equipped with Hydraulic Retarder

作　　者：高帅[1] 井思源 GAO Shuai;JING Siyuan(Shaanxi Fast Gear Limited Liability Company Institute of Automotive Transmission Engineering,Xi'an,Shaanxi Province,710019 China)

机构地区：[1]陕西法士特齿轮有限责任公司汽车传动工程研究院,陕西西安710019

出　　处：《汽车知识》2022年第10期178-180,共3页Auto Know

摘　　要：液力缓速器的工作原理是将车辆的机械能转化为缓速器工作介质的热能,从而实现整车的减速制动,而工作介质吸收的热能再通过整车冷却系统将热量散热掉,实现持续可循环的制动。因此,液力缓速器的持续使用效果主要取决于整车冷却系统的散热能力。不同的车型因其冷却系统配置差异导致匹配液力缓速器后表现出的使用效果也相差甚远。该文通过对比三款匹配缓速器车型的冷却系统的差异,利用整车转毂试验台模拟的长下坡制动工况,测试对比整车冷却系统的流量、散热能力、匹配缓速器的持续制动性能等,分析影响缓速器持续制动性能的影响因素,为整车更好地匹配液力缓速器提供有力的数据支撑。The working principle of hydraulic retarder is to convert the mechanical energy of the vehicle into the heat energy of the working medium of the retarder,so as to realize the deceleration braking of the whole vehicle.The heat energy absorbed by the working medium is dissipated through the heat dissipation of the vehicle cooling system,so as to realize the continuous and recyclable braking Therefore,the continuous use effect of hydraulic retarder mainly depends on the cooling capacity of the vehicle cooling system.Because of the difference in cooling system configuration different models show very different use effects after matching hydraulic retarder.Models in this paper,by comparing the three matching retarder of the differences in the cooling system,using the vehicle long downhill braking mode,turn the hub test rig simulation contrast test of vehicle cooling system of flow,cooling capacity matching retarder continuous brake performance,etcr analyzed the influence of the continuing impact retarder braking performance factors,for the vehicle to provide better matching hydraulic retarder powerful data support.

关 键 词：液力缓速器 冷却系统 整车制动功率 散热功率 

分 类 号：U461[机械工程—车辆工程]