Development of a Bike-Sharing System Based on Pedal-Assisted Electric Bicycles for Bogota City

• DOI: 10.3390/electronics7110337
• Publication Date: 2018-11-21T16:23:27Z
• Authors: David Florez; Henry Carrillo; Ricardo Gonzalez; Max Herrera; Ronald Hurtado-Ve...; Martha Cano; Sergio Roa; Tatiana Manrique
• Keywords: bike-sharing system; 05 social sciences; mid-drive propulsion system; 7. Clean energy; 12. Responsible consumption; Field-oriented Controller (FOC); photovoltaic charging station; 13. Climate action; electric bicycles; 0502 economics and business; 11. Sustainability; power converter; pedal-assistance system; BLDC motor

The lack of sustainable solutions to mobility and transportation is a major problem in Latin American cities and requires prompt solutions. The main issues in Latin America are the high-cost of solutions, no inclusion of renewable energies, poor energy management, the use of foreign systems not adapted to local contexts, ineffective regional legislation and politics, among others. In this paper the main technical issues concerning the implementation of a bike-sharing system using pedaling-assisted (PAS) electric bicycles for Bogota City are discussed and a solution is proposed. To solve such problems, a methodology to design a tailored solution well suited to Bogota citizen’s needs is developed. Such methodology starts with the development of an on-board-computer (OBC) in order to characterize bike-users by collecting a rider’s data in real-time. Furthermore, the proposed solution develops a low-cost middle-drive (mid-drive) propulsion system for the PAS in the electric bike using brushless-DC (BLDC) motors and by implementing a field-oriented controller (FOC). The reported bike-sharing system also includes the development and implementation of two charging-stations that enable charging the battery on the electric bikes exclusively by using photovoltaic energy. Experimental results are presented and discussed.