Mobile Dynamometer is a modern equipment for measuring dynamic traction performance of vehicles. Power-measuring system, playing a decisive role in improving Mobile Dynamometer's performance, provides adjustable load for it. 负荷拖车是用来测试车辆动态牵引性能的现代车辆测试设备,测功系统在试验过程中为之提供可调节负载,对拖车性能起着决定性的作用。