his paper describes the temperature rise test during braking process for the brake rings and brake blocks made of different material at various starting braking speeds in the field, measured relationship between the speeds and the oil film thickness of the thrust bearing of the hydrogenerators during their stopping.

Based on the brake characteristic of water-cooling disc brakes during going down,the FEM model of thermal analysis during cycle braking is established.

The temperature and stress field of wagon wheel under the condition of long ramp way cycle braking in Daqin line have been simulated by using FEM and axial symmetry model.

This article describes the basic information on Chery SQR7160 cars, the configuration principle of ABS and the braking cycle of antilock function, and provides with the content of common examination and self\|diagnosing fault.