The maximum speed of the Shinkansen vehicles has increased by more than 100 km / h since the service of the Shinkansen started,and now the speed reaches over 300 km / h. At the condition of increasing further speed, a friction material is required to handle the increased heat load associated with the improved braking force. A full-size bench test is essential for evaluating the performance of the mechanical brake conclusively, but it takes a lot of time and efforts to evaluate the friction coefficient of the brake friction materials at high temperature. Therefore, we research a method for evaluating the brake friction materials more easily than evaluating them using a full-size bench test. This paper as a new evaluation method for Shinkansen vehicle brake friction materials, introduces a method for experimentally investigating and analyzing the relationship between the heat resistance and the friction coefficient of the solid lubricant contained in the friction material.
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