Intelligent energy management ensures that the combustion engine and the electric one in the BMW ActiveHybrid models work together efficiently and harmoniously. It also coordinates other functions for more efficiency.
For example, kinetic energy is released every time the driver brakes or decelerates. This energy doesn’t go to waste, but is saved via Brake Energy Regeneration in the lithium-ion high-performance battery. The lithium-ion high-performance battery is characterised by its long life expectancy and is accompanied by a special certificate which offers coverage for the first 100,000 km or a maximum of five years, whichever comes first. When needed, this saved energy can be accessed by the drive train and use at any time to improve the vehicles overall performance: the boost function supports the combustion engine when needed with additional performance from the electric engine – but no additional fuel consumption. This is an advantage particularly when spontaneous, powerful acceleration is desired, e.g. when acceleration and overtaking.