在人工成本不断增高的情况下,自动调整臂不需要像手调臂一样人为地定期调整,减少了维修次数,延长车辆保养的间隔时间,从而增加经济效益。随着我国高速公路网的不断完善,长途物流运输越来越多地使用主挂车连接的运输方式,而且趋向于集成化、大吨位,这就对主挂车制动系统的匹配、协调及可靠性提出了更高要求。本文通过梳理我国目前主挂车制动系统在使用中出现的问题,提出相应的解决方案。主挂车制动系统存在的问题及原因目前我国主挂车运输车辆的驱动 In the case of increasing labor costs, the automatic adjustment arm does not need to be manually and regularly adjusted like a manual adjustment arm, reducing the number of maintenance and extending the maintenance interval of the vehicle, thereby increasing the economic benefits. As China’s highway network continues to improve, more and more long-distance transport logistics using the main trailer connection mode of transport, and tend to be integrated, large tonnage, which on the main trailer braking system matching, coordination and reliability Put forward higher requirements. This paper combs the problems that occur in the use of the main trailer braking system in our country and puts forward the corresponding solutions. Main Trailer Brake System Problems and Reasons China’s main trailer car transport vehicle drive