Analysis and developement of an innovate e-bike drive-train

Abstract

E-bikes constitute a sizeable market share and this is only expected to increase. eMTBs constitute a major share of e-bikes. But, as their numbers continue to increase, it is important to keep in mind their safety. Using the inherent advantages of electric motors, we assess the their use not just in providing additional performance but aiding in safety. Benchmarking of e-bike drive-trains is carried out to understand the existing options available on the market. Performance analysis of two hub motors, internally geared and direct drive hub motors are carried out. Various factors such as efficiency, cost, weight and size are considered to choose the best fit. The various functionalities are tested on a prototype along with interface of additional peripherals and sensors. Due to the benefits of fast dynamics of electrical machines and use of dual hub motors, feasibility of a traction control and ABS system is performed to enhance safety of the rider. These aims are simulated in MATLAB/ Simulink and partly implemented to verify their performance