GM engineers quiet brake squeal

Added insert practically eliminates unwanted brake noise


In the long-run, the Coulomb damped brake opens new opportunities for brake design. Future brake systems could use materials with even higher coefficients of friction, meaning stronger grips, because the Coulomb damped brake can eliminate the higher potential for squeal.


“The Coulomb damped brake creates new possibilities because we don’t have to worry as much about unwanted noise,” Webster said. “It could allow us to create smaller, lighter brake systems that provide even more stopping force than the larger brake systems in some automobiles today.”


GM’s advances in brake technology also include a recent effort to eliminate rotor rust, double the life of the component and save consumers hundreds of dollars over the life of their vehicle.


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