BMW EFFICIENTDYNAMICS

There are many reasons why BMW`s are so enjoyable and engaging to drive. At the heart of their appeal is a range of cutting-edge technologies called BMW EfficientDynamics. Together, these innovations deliver a significant reduction in fuel consumption and emissions, as well as a more rewarding driving experience.

EfficientDynamics technologies already feature in every new BMW as standard and all new models will continue to benefit from this technology in the future, yet BMW are still looking for further improvements, including alternative energy sources.

Outlined below is an overview of each of the key technologies that form part of BMW EfficientDynamics.

Stops the engine automatically whenever the car comes to rest and is taken out of gear – for example, at traffic lights – and restarts the second the clutch pedal is depressed, saving fuel and reducing emissions.

Actively controlled air flaps regulate air flow to the engine and braking systems. By opening and closing these flaps, the engine is able to reach its operating temperature quicker, whilst vehicle drag is also reduced– helping the car move through the air more easily and reducing fuel consumption and emissions.

The use of advanced lightweight materials, such as thermoplastics, aluminium and magnesium alloy, reduce the overall weight of the vehicle, enhancing driving dynamics and improving fuel economy.

A small visual display on the car’s instrument cluster shows the optimum gear for any driving situation. This gives the driver the opportunity to adopt a more fuel-efficient driving style.

By using an electric motor to assist the steering, the system is not only lighter in weight than conventional hydraulic power steering, but it is not drawing valuable engine power and using fuel. The driver also benefits from a varying level of power assistance to aid manoeuvring at lower speeds.Brake Energy Regeneration/ Intelligent Alternator Control.

Intelligent Alternator Control monitors battery charge level and condition, engaging the alternator only when the battery requires recharging. This reduces the demands on the engine, reducing fuel consumption and emissions. In addition, when the car is braking or coasting, this system automatically engages the alternator to charge the battery, recycling energy that would otherwise be wasted.

When a vehicle is being driven, the tyres are constantly flexing, a process which uses both fuel and energy. Special heat-resistant, anti-distortion materials are used in the sidewalls and tread of the tyres to reduce this tyre flexing and therefore lower emissions and improve fuel economy.

Reducing fluid friction in an engine helps minimise wasted energy and, consequently, fuel consumption and emissions. BMW uses low-friction transmission fluid, engine oil and final drive fluid to help the vehicle runmore smoothly and efficiently.