Battery energy storage determines driving range

How does battery size affect driving range?

It is mostly determined by a combination of efficiency and battery size. However, implementing a bigger battery with greater energy reserves does improve driving range, but it also increases the overall weight of the vehicle, and therefore actually decreases efficiency.

How does battery capacity affect range?

Battery capacity directly impacts range: higher capacity equals longer range, but it also increases vehicle weight, which raises energy consumption and partially offsets the range advantage. For example, in a rapid acceleration test, a 1500 kg vehicle consumes 4% more energy than a 1000 kg vehicle.

Do battery capacity and efficiency affect EV driving range?

The energy storage capacity and efficiency of batteries directly influence EV driving range, which remains a primary concern for consumers (Zhang et al., 2018). The accurate prediction of driving range depends on two fundamental elements: energy consumption rate and remaining battery capacity (Zhao et al., 2020).

Why is thermal management important in a battery electric vehicle?

Thermal management also plays an important role in increasing the efficiency and therefore, the driving range of a battery electric vehicle (BEV) because unlike with ICE vehicles, energy for heating must also be borrowed from the battery. A power train’s basic concept must be suited to the needs of the intended target customer group.