2013 BMW ActiveHybrid 7 is now powered by 3-liter TwinPower Turbo

Article by Christian Andrei, on October 2, 2012

The latest of BMW’s intelligent hybrid drive systems – the second generation of the BMW ActiveHybrid 7 – is getting updated for the 2013 model year. Now with lower fuel consumption and emissions, the BMW ActiveHybrid 7 is powered by a 3.0-liter TwinPower Turbo inline 6-cylinder engine, replacing the V8 engine found in the first generation.

Complementing this power plant are a 55hp synchronous electric motor, hybrid-spec 8-speed Steptronic automatic transmission, a lithium ion high-performance battery and power electronics. With these components, BMW was able to turn the new BMW ActiveHybrid 7 into a vehicle with an excellent balance of performance and efficiency.

The new BMW ActiveHybrid 7 can churn out a combined output of 349 hp and peak torque of 367 lb-ft, enabling it to accelerate from zero to 60 mph in just 5.5 seconds. Likewise, the second generation is more fuel efficient. In fact, in the European Union test cycle, the new ActiveHybrid 7 returns efficiency gains of 14 percent over the new 740Li.

The vehicle also has a number of innovative features that improve its dynamics while ensuring optimum efficiency of its hybrid drive system. For instance, the electric motor provides an additional 155 lb-ft of torque via the boost function when the driver wants to gain extra acceleration boost, just like when it is passing another vehicle.

The new ActiveHybrid 7 features the ECO PRO mode, which thanks to its coasting function and proactive analysis, readies the drive system in advance for road situations. Further working to enhance efficiency are the vehicle’s Brake Energy Regeneration and the Hybrid Start-Stop system.

Another sweet deal for the MY2013 BMW ActiveHybrid 7 is its ability to run solely on electric power. If the hybrid battery has enough charge and the driver employs easy accelerator works, the vehicle could run for 2.5 miles up to a max speed of 37mph – sans any noise and any harmful emissions.

When it arrives in the United States, the new ActiveHybrid 7 will be available only as a long-wheelbase model. All of BMW’s 7 Series models are installed with Auto Start-Stop, a feature that reduces fuel consumption by up to six percent. The models are also equipped with Brake Energy Regeneration.

Meanwhile, it features the Driving Dynamics Control that now comes with the ECO PRO mode that modifies the powertrain management and programming of the heating and air conditioning, heated seats and exterior mirror heating. This mode also offers tips on how to become more effective when driving. This mode could help cut fuel consumption by up to 20 percent.

Press Release

BMW ActiveHybrid 7

BMW has announced the arrival of the second generation BMW ActiveHybrid 7, a move that is in sync with the ongoing development of BMW‟s intelligent hybrid drive systems.

The new model sets itself apart with lower fuel consumption and emissions, as well as innovative auxiliary functions. This latest evolution stage uses BMW TwinPower Turbo technology with a six-cylinder in-line petrol engine displaying impressive high-revving characteristics, torque and efficiency. The cutting-edge petrol engine with BMW TwinPower Turbo technology is the 320 hp variant of the unit fitted in the new BMW 740Li and replaces the eight-cylinder engine used up previously.

Other hybrid components include the 55 hp synchronous electric motor, the hybrid-spec eight-speed automatic transmission, a lithium-ion high-performance battery and power electronics underpinning intelligent energy management.

Mr Neil Fiorentinos, Managing Director of BMW Group Asia said: “Efficient Dynamics technology continues to drive our cars with enhanced power while not compromising on their fuel efficiency and CO2 emissions. The various Efficient Dynamics components found in this flagship BMW hybrid limousine have come together to form a powerful and harmonious whole that has struck an outstanding balance between performance and fuel economy.”

A full Hybrid Car:
Ability to achieve zero tailpipe emissions.
With system output of 354 hp and peak torque of 450 Nm, the new BMW ActiveHybrid 7 accelerates from 0 to 100 km/h in just 5.7 seconds. At the same time, the limousine posts average fuel economy of 6.8 litres per 100 km (which is 14 percent less than a conventional BMW 740Li) and CO2 emissions of 158 g/km. The new BMW ActiveHybrid 7 can also run purely on electric power with a maximum of 210 Nm of torque on tap. The new BMW ActiveHybrid 7 is able to travel at a speed of 60km/h based purely on its electric drive. However, If the hybrid battery has sufficient charge and is met with optimum conditions like ambient temperature, clear traffic conditions and light-footed acceleration, the car can easily cover a distance of up to four kilometers (at a speed of 35km/h), almost silently and with zero tailpipe emissions.

The new BMW ActiveHybrid 7 Series is further packed with state-of-the-art technologies, including; BMW TwinPower Turbo technology featuring twin-scroll turbocharging, High Precision Direct Petrol Injection, Double-Vanos variable camshaft timing and VALVETRONIC fully variable valve timing. The reduced friction core engines, furthermore, come with a lightweight all-aluminium crankcase, which is a boon for both the efficiency and the agility of the ActiveHybrid 7.

The ActiveHybrid 7 is further partnered by a highly sophisticated eight-speed automatic transmission, which stands out for its excellent efficiency, compact construction and innovative gearset design.

Auto Start-Stop, Brake Energy Regeneration, ECO PRO mode.
The BMW ActiveHybrid 7 comes equipped with an Auto Start-Stop function, which can cut fuel consumption by up to 6 percent. The standard specification also includes Brake Energy Regeneration, meaning that power for the vehicle electrical system is only generated during overrun and braking phases where possible. When the engine is under load, the alternator can often be disengaged. This not only means that electricity can largely be generated with zero impact on fuel consumption, it also endows the luxury sedan with even livelier acceleration. Finally, the Driving Experience Control switch gives drivers the option of selecting the extended ECO PRO mode which, by modifying the powertrain management and programming the heating and air conditioning, heated seats and exterior mirror heating to operate for optimum efficiency, fosters economical driving which – depending on the individual driving style – can reduce fuel consumption by as much as 20 per cent.

New coasting mode and advance preparation of hybrid drive system.
The extended ECO PRO functionality includes the new coasting mode, which is designed to decouple the combustion engine when it is overrunning at speeds between 50 and 160 km/h. In coasting mode, the BMW ActiveHybrid 7 is subject to a far lower rate of deceleration as it freewheels along the road with no engine braking effect and minimal fuel consumption. By doing so, the kinetic energy built up by the vehicle can be harnessed and – through forward-thinking driving aided by the proactive driving assistant – fuel savings of up to five per cent can be achieved. The coasting function is clearly visualised for the driver‟s benefit in the multifunctional instrument cluster and the central Control Display, and can also be deactivated if desired.

Intelligent lightweight design brings further reduction in fuel consumption and CO2 emissions.
Intelligent lightweight design is integrated into all areas of BMW vehicle development work and into all components, from the body and engine to the suspension. Besides high and ultra-high-tensile steels and plastics, state-of the-art composite materials are also employed. Finally, increased use of aluminium components in the engine and suspension systems as well as for the bodywork has also further reduced the weight of the relevant assemblies.

Premiere: Electric Power Steering included as standard.
The new BMW ActiveHybrid 7 comes equipped with Electronic Power Steering (EPS), which uses an electric motor to provide steering assistance. EPS only operates when steering assistance is actually required: no electrical power is consumed during straightline driving or steady-state cornering. Noticeable attributes of this system include not only its high efficiency and low weight, but also high steering precision with good feedback, and comfort-enhancing self-centering and anti-roll characteristics. Drivers also have the benefit of the steering system‟s standard Servotronic function, which has a more direct setup overall and requires less steering effort.

Aerodynamic streamlining.
Reducing aerodynamic drag also helps to lower fuel consumption. As the excellent drag coefficient figure of cd = 0.28 would suggest, the aerodynamics of the new BMW ActiveHybrid 7 has been finely honed in a state-of-the-art wind tunnel. The optimised aerodynamics also brings benefits for acoustic comfort and roadholding. In particular, the vehicle‟s underside plays an instrumental role in minimising lift forces, as the aerodynamically efficient design with streamlined panelling provides a high degree of sealing. Also, the front aprons are designed to create an “air curtain” effect which reduces turbulence around the front wheels – again reducing drag. The aerodynamically designed wheel arches and various air deflectors likewise have a fuel-saving effect.

Latest Connected Drive Features
Apart from the latest Efficient Dynamics features, the new BMW ActiveHybrid 7 also comes equipped with various BMW ConnectedDrive technology including, the Anti-dazzle High-Beam Assistant; the Mobile Office and voice control; and a new-generation Professional navigation system with 3-D display, just to name a few.

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