Abstract: In order to obtain the transfer path of the steering wheel judder caused by brake, the running conditions were simulated by the surface of the drum, the brake judder phenomenon recurred. The vibration accelerations of the caliper, caliper bracket, knuckle arm, tie rod, universal joint, and steering wheel were acquired. Meanwhile, the vibration signals of the steering wheel were analyzed at vertical, lateral, and radial directions. The first and second order frequencies were confirmed through order analysis. The transfer path was analyzed from caliper to steering wheel. The intermediate links were also analyzed during vibration transferring from caliper to steering wheel. The experiment results show that the transfer path of the brake judder is mainly caliper-caliper bracket-knuckle arm-tie rod-universal joint-steering wheel. The brake judder was enlarged or diminished during the transfer process, and it was transferred to the steering wheel after enlarging and diminishing at the three directions

Key words: Vehicle, Brake, Judder, Steering wheel, Transfer path, Experimentation