The following article describes a methodology for using a video-based system to measure the deceleration or braking performance of a bicycle after the rider applies the brakes. The bicycle’s deceleration was calculated from the equation of motion using the initial velocity and the braking distance, which is the difference between the point of brake initiation (POBI) and the bicycle’s point of rest (POR). The POBI was determined by using a GoPro camera mounted on the chain stay near the rear axle that captured a brake light wired into the rear brakes while the test cyclist rode alongside of a 100-foot surveyor tape. The POR or more specifically where the rear wheel stopped was documented next to the 100-foot surveyor tape. This methodology was evaluated under two braking conditions: rear brake only (RBO) and front and rear brake (FARB). The results demonstrated that the video-based system provided reasonably accurate measurements, on the order of 5% for assessing the braking performance of a bicycle for speeds in the range of 15 miles per hour (mph) or less. Additionally, observations regarding skid marks and rider technique during braking are also discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Video-Based System for Measuring the Braking Performance of a Bicycle


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Automotive Technical Papers ; 2017



    Publication date :

    2018-08-27




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Braking system and braking method for bicycle and bicycle applying braking system

    YANG XIAO / ZHANG WEIDONG / THE INVENTOR HAS WAIVED THE RIGHT TO BE CITED | European Patent Office | 2020

    Free access

    Bicycle braking system

    GAO YONGJIAN | European Patent Office | 2015

    Free access

    BICYCLE BRAKING SYSTEM

    KARIYAMA OSAMU / NAKAKURA MASAHIRO | European Patent Office | 2016

    Free access

    Bicycle braking system

    KARIYAMA OSAMU / NAKAKURA MASAHIRO | European Patent Office | 2016

    Free access

    BICYCLE, BRAKING SYSTEM, AND BRAKING METHOD

    NAKATANI YOSHIHIKO / MORITA TAKAFUMI / HONDA TAKU et al. | European Patent Office | 2021

    Free access