Design and construction of an energy management system for electric vehilce batteries

Abstract

An user programmable power management system oriented on designing custom charging and discharging profiles for electric vehicle's batteries was designed and tested. The charging process is in charge of a Buck converter controlled by a selective current/voltage controller with bumpless control transfer, and supplied by a configurable AC-DC converter that could use both single-phase and three-phase source. For battery discharging, a MOSFET working as a dynamic resistor is used. This power management system was tested programming a fast charging on a 12V sealed lead-acid battery and a low charging using one and two 12V gel batteries in a series array. Also was tested emulating an electric motorcycle's engine and discharging a 24V gel batteries array according to a given drive profile.

Eco-Driving planification profile for electric motorcycles

“…[36] [35] [11] [16] Use the SoC estimation to optimize the power management. Charge/Discharge process [37] [38] [81] Cells equalization process with a multilevel DC-DC is proposed.…”