BMW 7 Series ActiveHybrid
Energy well spent

BMW will market a version for its hybrid luxury sedan, the 7 Series long and short-body, thought to act as a semihíbrido or as they call it, Mild-Hybrid. It has a main combustion V8 engine (465 hp) and an electric motor that serves as support. The use of electric propulsion with high-voltage battery allows BMW does not waste a single volt. Thus is achieved that this Gran Turismo reduce consumption to 9.4 l/100km and 219 g. CO2.
BMW has designed this hybrid system not as an alternative to fossil fuel but as a clever mechanism for savings and reuse of energy. The coordination of the two engines of a lithium ion battery mounted in the trunk, along with a new 8-speed automatic transmission combined with Auto Start Stop function, allows use of energy difficult to find in other cars.

The electric motor located between the combustion and the gearbox, three-phase power is equivalent to 20 hp and generates peak torque of 210 Nm. This engine and high-voltage battery (120 volts) feed each other. And together they give the vehicle both systems aboard 12 volts and 120 volts. This allows for the car hire services without wasting fuel, as is the case for air conditioning. The air conditioning compressor is included in the network of 120 volts while other car's electrical functions are the mains current of 12 volts. The two networks are connected by a voltage converter. In the event of an operational failure or accident, all the high-voltage system be disconnected immediately.
The battery is compact 37 x 22 x 32 inches and weighs 27 kg. Located within a highly resistant steel case and is mounted in the trunk between the wheel arches. It comprises 35 cells and an energy control.Acumula unit of 400 watts / hour.
Returning to the gasoline combustion engine, we must not forget that we are dealing with a Power Twin Turbo Direct Injection, eight cylinders and 4,400 cc. Along with the electric motor provides a total power of 465 hp and maximum torque of 700 Nm. It accelerates from 0 to 100 km / h in 4.9 seconds and a top speed of 250 km / h.

During phases of deceleration and braking, the electric motor, alternator serves as the energy recovering. According to BMW, get eight times more energy than other BMW with this device installed.
The electric motor also makes the starter, so the gasoline engine is put into operation immediately and without vibration.
Star Stop function automatically switches off the combustion engine when it is idling. When removing the brake pedal again starts the combustion engine. If you activate the Auto-Hold, the engine is also switched off in caravans and traffic jams. If it treads lightly on the gas, wakes.
The 7 Series ActiveHybrid alloy wheels mounted 19-inch turbine. BMW is now selling two versions of the Gran Turismo. The long has 14 inches more than battle. The equipment includes dynamic control system for suspension, DDC, including automatic height adjustment on the rear axle.

The equipment includes front airbags, side and heads, front head restraints automatic activation in case of impact, type runflat tires and indicator needles.
Spotlight: air conditioner with the engine off
The 7 Series ActiveHybrid is the first BMW in which the air conditioning and ventilation system can keep running with the engine off because they feed the 120 volt network on board. This keeps the car at a good temperature while you are parked in the very desert.
There are four areas of regulation and can be activated by remote control. It can reduce the temperature over 30 degrees Celsius in a short time. The air conditioner cooling function starts well in advance in relation to other cars. BMW stresses that this is possible thanks to the power supply: the lithium-ion battery.