Approach for Proper Battery Adjustment for HEV Application

摘要

The most important approach for hybrid system s components parameters adjustment is to use a proper tool for determination simultaneously engines fuel consumption and batterie's energy alterations. It is clear that decreasing of battery current and SOC is connecting with increasing fuel consumption. This statement is also true in other way, what means that value of used electric and fuel energy should be constant for analytical comparable driving cycle for constrains that efficiency of power distribution is equal one. Is not possible to accept this simplification. The real efficiency factors of drive components strongly depends on torques, shaft speeds or currents and voltages. The problem is focused on multi quality factors optimization, where the target function is to minimize fuel and electricity consumption. In practice it is connected with minimizing the power of ICE and the mass of traction battery. The paper presents the method as an approach of resolving this problem by proper adjustment the battery in the general case by using experimental data and mathematical modelling. For simulation used the real data and proper model the ICE. Have been done exemplary calculations for chosen hybrid structure, assuring the full battery balance on beginning and the end of the ECE driving cycle.