The invention discloses a
brake hydraulic pipeline, a
brake hydraulic
system and a vehicle. The
brake hydraulic pipeline comprises a brake hard
pipe, a connecting piece, a brake hose and a first
noise reduction strip, and a first flow channel is formed in the brake hard
pipe; one end of the connecting piece is connected with the brake hard
pipe, and a second flow channel communicated with the first flow channel is formed in the connecting piece; one end of the brake hose is connected with the other end of the connecting piece, and a third flow channel is formed in the brake hose; the first
noise reduction strip is located in the brake hose, a first
noise reduction flow channel is formed in the first
noise reduction strip, and the two ends of the first
noise reduction flow channel communicate with the second flow channel and the third flow channel correspondingly. According to the brake hydraulic pipeline disclosed by the embodiment of the invention, the composite
noise reduction pipeline is manufactured in the pipeline
assembly by utilizing the flexibility characteristic of the brake hose and the noise reduction principle of the
expansion chamber of the first noise reduction strip, so that some pump source pulsation is reduced, and the propagation of
mechanical vibration frequency noise in the lower end pipeline and the hydraulic booster is reduced.