Method for determining auxiliary electricity generation power of electric vehicle

The invention aims to provide a method for determining auxiliary electricity generation power of an electric vehicle. On the premise of ensuring power required by the whole vehicle and guaranteeing the safety and the reliability, real-time required electricity generation power of the whole vehicle on a range extension (RE) system can be obtained comprehensively and accurately, so that the RE system can fully develop the working characteristic to coordinate with energy management and control of the whole vehicle, and then the working efficiency is improved and a driving range of the electric vehicle is extended. The method for determining the auxiliary electricity generation power of the electric vehicle comprises the following steps of: firstly, calculating the power required by the wholevehicle, charging power of a battery and protection limited power according to a specific working condition; secondly, balancing the three types of power and calculating to obtain preliminary required auxiliary electricity ge