关键词: 制动角总成；端面跳动；波形叠加

Abstract: The sideface run-out (SRO) of the brake corner module is mainly composed of the SRO of the brake disc and the SRO of the wheel hub flange. Limited by the machining accuracy of the parts, the SRO of the brake disc and the SRO of the wheel hub flange meet the technical requirements of the parts, but the SRO of the brake corner module exceeds the tolerance. This paper analyzes the SRO of the brake corner module superimposed by the brake disc and the wheel hub flange, transforms the axial SRO into a radial vector synthesis, thereby establishing a function on the circumference direction of the SRO measuring point, and adjusts the amplitude of the superimposed waveform by changing the phase of the measuring point of the brake disc. Theoretically solves the problem that the SRO of the parts is qualified but the SRO of the assembly is unqualified. The implementation plan is to add a spare brake disc positioning screw hole on the wheel hub flange, and the brake disc can be rotated and adjusted when the SRO of brake corner module detection fails for the first time, so as to change the SOR value of brake corner module after the brake disc and the hub flange are superimposed. At the same time, the paper also makes relevant technical requirements for assembly production and SRO detection to improve the assembly consistency of the brake corner module, and confirms the effectiveness of the implementation plan by tracking the subsequent brake corner module test results.

Key words: Brake corner module; Sideface run-out; Waveform superposition