Aiming at wheel scoring flat of China Star type DJJ 2 power car,the electrical braking characteristic and the braking force are analyzed in this paper.

• 针对“中华之星”号DJJ_2型动力车在试运行过程中出现的车轮擦伤现象,借鉴国外运行经验,对其电制动特性、电制动力进行分析,并提出相应改进措施。