BMW Active Tourer Concept
With the new BMW Concept Active Tourer, BMW presents a vehicle at the 2012 Paris Motor Show which is the first in the premium compact segment to combine comfort and space functionality with dynamic performance and style. Annual growth rates of up to five per cent are expected in the small car and compact segment of the premium class in the years to come. For this reason, the BMW Concept Active Tourer is a key component in the ongoing development of the BMW brand and its model portfolio.
The BMW Concept Active Tourer has been designed as a so-called plug-in hybrid - ideally combining the benefits of electric drive with those of a classic combustion engine. The plug-in hybrid (PHEV = Plug-in-Hybrid Electric Vehicle) will have a particularly important role to play in future. This is because plug-in hybrid vehicles normally have a range of well over 20 kilometres when run on electricity and can therefore be used efficiently for both short and long trips as well as in mixed mode. In the case of the BMW Concept Active Tourer, a state-of-the-art 1.5-litre petrol engine from the BMW Group Efficient Dynamics family of engines interacts perfectly with a synchronous electric motor.
The BMW Concept Active Tourer presents a drive concept which is new to the BMW brand. The 1.5-litre petrol engine does not drive the rear wheels - as has been the case in BMW models to date - but the front wheels. The electric motor of the BMW Concept Active Tourer is designed as a fully-fledged power unit and acts on the rear axle, if necessary powering the car on its own.
With a system output of over 140 kW/190 bhp, the combination of combustion engine and electric motor enables the BMW Concept Active Tourer to achieve highly sporty performance figures while maintaining extremely low fuel consumption and emission levels. The BMW Concept Active Tourer accelerates in less than eight seconds from standing to 100 km/h, while the maximum speed achieved by the dynamic plug-in hybrid is around 200 km/h. In spite of these impressive performance figures, the average fuel consumption is less than 2.5 litres per 100 kilometres, with a CO2 emissions level of less than 60 g/km.
The combustion engine of the new BMW Concept Active Tourer is a new cutting-edge 1.5-litre engine with BMW TwinPower Turbo Technology. Derived from the multiple award-winning 6-cylinder engine with BMW TwinPower Turbo Technology, it combines the latest generation of High Precision Injection with the fully variable valve control system VALVETRONIC and ultra-modern turbocharging. BMW TwinPower Turbo Technology will be used in all power units of the BMW Group's Efficient Dynamics engine family in the future - not least because it does not depend on total capacity or number of cylinders. The new 3-cylinder engine in the BMW Concept Active Tourer is one of the first representatives of this new generation of engines. The compact in-line engine constitutes an exemplary combination of dynamic performance and efficiency.
The new BMW TwinPower Turbo 3-cylinder offers character-specific benefits: running smoothness, revving power, spontaneous response and a dynamic, sporty sound. Since there are no first and second-order inertia forces, it offers an especially high level of comfort in terms of noise and vibration. The level of roll torque is lower than that of a 4-cylinder and is compensated for by a single counterbalance shaft. Among other things, this helps keep the engine extremely smooth-running in the low engine speed range, too.
The synchronous electric motor in the BMW Concept Active Tourer was also developed by the BMW Group. With a fully charged battery, the BMW Concept Active Tourer has a maximum range of over 30 kilometers when running on electric power alone. This means that the majority of day-to-day trips dispense with local emissions entirely. What is more, the boost function can be applied to use the power provided by the synchronous electric motor for such things as highly dynamic acceleration maneuvers. In both cases the drive power is made available spontaneously and without delay. The maximum torque of 200 Newton meters is available from standing.
The lithium-ion battery of the BMW Concept Active Tourer can be charged at any 220 volt household power socket. Power can be drawn from both axes of the BMW Concept Active Tourer and fed into the lithium-ion battery so as to enhance the efficiency of the plug-in hybrid. While the electric motor automatically recuperates maximum energy at the rear axle during deceleration, a high-volt generator connected to the combustion engine additionally charges the battery whenever needed.
Source: BMW press