Study on a Vibration Test System for Bicycle Electric Attachments

摘要

More and more electronic equipments are revealed in the market, such as the electric derailleur controller, electric shock absorber controller and the add-on assistance motors. Their fixation parts suffer from continuous as well as shock vibrations during their whole life cycles. Developers usually implement the vibration test rig for their own products or components, which occupy significant human resources within their design departments. This study proposes a vibration test and reliability evaluation system for bicycle electronic systems and components, the VibroTester, composed of a motor with multiple centrifugal weights in a relatively small space. VibroTester collects the accelerations on itself, the lower fork and the upper fork against various vibration frequencies by using distributed microcontrollers through CAN-compatible communication protocols, and transmits data to LabVIEW interface on a PC. Three different settings of vibration test toward an electronic shock absorber controller are delivered and discussed in this study.