Electrical vertical take-off and landing vehicle (eVTOL) are more and more
popular in future’s urban mobility. How to improve the reliability of the
battery, is the key problem. Battery Management System (BMS) through the battery
status monitoring, charging and discharging control, temperature management,
fault diagnosis, battery equalisation and other core measures to improve the
battery reliability and performance, of which battery equalisation technology
plays a vital role. BMS manages batteries through battery status monitoring,
charging and discharging control, temperature management, fault diagnosis,
battery equalisation and other core measures to ensure the safety, reliability
and performance of batteries. This paper analyses the inconsistency mechanism of
batteries, introduces the classification of mainstream balancing circuits,
describes the advantages and disadvantages of different types of balancing
technologies, introduces the practical application scheme of passive balancing
for eVTOL, which achieves a good balancing effect through the hardware and
software as well as the heat dissipation design, and finally looks forward to
the development of the balancing technology for battery management systems.