BMW X6 ActiveHybrid to make its debut in Frankfurt

ActiveHybrid technology provides a glimpse into the future, achieving outstanding driving dynamics with equally impressive efficiency. It melds both of these qualities to offer a truly unique driving experience.

BMW ActiveHybrid technology offers a significant increase in driving dynamics and at the same time reduces fuel consumption by approximately 20 percent versus a comparable vehicle powered by a combustion engine alone.

Precisely controlled interaction of the three power units optimizes the overall efficiency of the BMW ActiveHybrid X6 at all speeds, with acceleration from a standstill to 100 km/h in 5.4 seconds.

Top speed of the BMW ActiveHybrid X6 is limited electronically to 209 km/h, with average fuel consumption in the EU test cycle improved by roughly 20%, and a CO2 emission rating of 231 grams per kilometer. EPA ratings will be available closer to the market introduction.

BMW’s first full hybrid model is able to run exclusively on electric power – and that is entirely free of CO2 – up to a speed of 60 km/h , with the combustion engine being activated automatically whenever required.

These performance figures are made possible by utilizing a two-mode active transmission. The ideal combination of the two power modes can be controlled for enhanced efficiency and dynamic performance in any driving condition. With the two electric motors, three planetary gearsets and four multi-plate clutches, drive power is transmitted through a 7-speed automatic transmission.

[B]Unique efficiency ensured by two-mode active transmission[/B]

BMW ActiveHybrid technology has been developed specifically for use in a particularly dynamic vehicle and for a broad range of practical use. The big advantage, therefore, is optimization of drivetrain efficiency in all speed ranges and conditions.

The two-mode active transmission is based on an ECVT (electric continuously variable transmission) operating in two separate modes. One mode is for stop-and-go driving and low speeds, and the second is for driving at higher speeds.

[B]Twin-turbocharged V8 gasoline engine with High Precision Direct Injection[/B]

The combustion engine is the innovative reverse-flow V8 first featured in the BMW X6 xDrive50i. The world’s first V8 gasoline engine with two turbochargers in the V-section between the two rows of cylinders develops power throughout the entire engine speed range. The spontaneous and direct response of this engine results from its compact configuration, which allows the shortest exhaust manifolds.

Displacing 4.4 liters, this outstanding engine delivers its maximum output of 400 hp between 5,500 and 6,400 rpm. Peak torque of 609 Nm is maintained from 1,750 to 4,500 rpm, with High Precision Direct Injection ensuring precise supply of fuel at all times. The engine fulfills the European EU5 standard as well as the ULEV II standards in the US.

[B]Electric motors for enhanced performance on no extra fuel[/B]

When accelerating, the V8 engine of the BMW ActiveHybrid X6 joins forces with the electric motors to ensure optimum efficiency and dynamic performance. When the driver requires more power, the two electric motors supply additional torque for enhanced performance. This boost effect significantly increases the overall output of the vehicle, without increasing fuel consumption.

While the two electric motors have almost the same output, they have been modified in their performance characteristics to meet specific requirements. The power delivered is 91 hp and 86 hp, respectively, with peak torque values of 260 Nm and 279 Nm.

Maximum system output is 480 hp, with peak torque of 779 Nm. This makes the BMW ActiveHybrid X6 the most powerful hybrid vehicle in the world, with acceleration from a standstill to 100 km/h in just 5.4 seconds and top speed is limited electronically to 209 km/h.

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Credits: JRC