Improving HV battery efficiency by smart control systems

An important acceptance criteria for electric mobility is the capability to efficiently use the energy stored into the cells over the vehicle lifetime. The BMS plays a central role by estimating the state of charge (current energy available) and state of health (degradation due to ageing effects) of the cells. Improvement of the estimation quality has a direct impact on the battery and thus vehicle range. It is the target of the INCOBAT project to improve the BMS system by means of new electronic components, new control strategies and new development methods in order to achieve cost reduction and performance (driving range) increase. In this paper, the INCOBAT project is presented and the results achieved after one year project duration are discussed.