Research And Application Of Bicycle Brake Performance Test System Based On EN14764

The bicycle brake performance is one of the most important indexes for safety running of bicycle because it related directly to the rider safe at emergency situations. The research on it is the most complex and difficulty subject in the bicycle theory. Especially at the end of 2005, The European Union release new bicycle standards, in which new test requirements for brake performance were drawn out. According to the new standard, the text, through analyzing about bicycle brake theory and drawing lessons from other organizations'research experiences, develops a new test system conforming to the EN standard.Based on optimum design method and system evaluation principles the paper design and optimize each system structures from driving unit, platform structures, loading mechanism, input and output of brake force. By analyzing mathematic model of above structures control and minimize the deviations. And through introducing the mathematic model of drive motor and transmission system design the new way for the system.This text has designed the hardware and software of the electric control system of computer test board. And choose the control units and design the parameter for it. Especially research the driving motor by frequency converter and mathematic model of the operated brake lever force.At last article with the aid of actual test verify test system designs. One the hand the test result prove the exactness and convenience of the test system, on the other hand research the performance of different brake.