In this study, reduction of suspension sensitivity to brake torque variation is focused on. A rigid multi-body dynamics model, which had been built for vehicle dynamics simulation, was used. Torque at the steering wheel was used as a measure ofbrake judder, and major factors affecting the suspension sensitivity were identified. The results indicate that longitudinal stiffness of the suspension and gyroscopic effects of the rotating wheel have a close relationship with suspension sensitivity.Modification was made to a prototype car based on the simulation result. Tests were performed to verity the simulation result.
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