Energy recovery control system of bicycle braking

YUAN Xiang, XIONG Zhi, JIANG Peng, LI Hua

(School of Automotive and Mechanical Engineering, Changsha University of Science and
 Technology, Changsha 410015, China)

Abstract: Aiming at frequent braking energy dissipation problem of bicycles, energy flow situation in the process of bicycle braking, motor regenerative braking, lithium batteries were studied. The energy lost in the process of bicycle braking and the control strategy of motor regenerative braking were generalized. The energy recovery control system of bicycle braking was proposed based on STC15F2K60S2 kernel single-chip processor. A road cycling was modified with the control system, and braking experiment was carried out in different riding road and different braking mode. The results indicate that the system can select reasonable braking model according to the speed and the intention of riders, recover braking energy fully under the premise of considering the riding safety, and improve the energy efficiency obviously.

Key words: bicycle; braking energy; energy recovery; control system; recovery efficiency