The Algorithm of Dynamic Battery SOC Based on Mamdani Fuzzy Reasoning

摘要

The measurement of dynamic battery spare capacity (SOC), has an important impact on the energy management system of hybrid electric vehicles. In this paper, a fuzzy forecast algorithm against the forecast of dynamic battery SOC was proposed. According to the Minimum-Maximum-Barycenter method of Mamdani fuzzy reasoning, the forecast model of vehicle dynamic battery SOC based on fuzzy forecast algorithm was established, the forecast of the battery SOC could be achieved using the present voltage and current data of battery, simulation and practical test showed that the forecast error was less than 5%, it could meet the control requirements of electric vehicle and hybrid electric vehicles  and had a wide range of applications.