tuningblog.eu Your magazine about tuning the car
More than ever, the number 7 stands for driving pleasure, travel comfort and advanced technology. Just a few months after the world premiere of the all-electric BMW i7, the drive portfolio of the new BMW 7 Series will be expanded to include additional engines in November 2022. Two plug-in hybrid models (PHEV) will be launched simultaneously in numerous automobile markets around the world, including the first BMW M automobile of the new BMW 7 Series, which will impress with the combined power of a six-cylinder in-line petrol engine and a further developed electric drive. Consistent electrification also optimizes the efficiency of the new BMW 740d xDrive, available on the European markets, whose straight-six diesel engine is supported by the latest 48-volt mild hybrid technology.
Engines & Innovations
With the increased variety in the drive portfolio, driving dynamics, progressive luxury and a feel-good ambience can be experienced in a variety that is unique in the competitive environment. It is the result of a newly developed, flexible vehicle architecture for the BMW 7 Series and an expression of a globally oriented product range with a market-specific model range. The BMW Group thus takes individual customer needs, infrastructure conditions and legal regulations in the various regions of the world into account.
BMW plug-in hybrid innovation: Compact pre-transmission stage ensures even more powerful electric thrust.
The drive systems of the two plug-in hybrid models consist of a six-cylinder in-line engine with BMW TwinPower Turbo technology and an electric motor integrated into the 8-speed Steptronic transmission. The power of both drive units is transferred to the road via the intelligent all-wheel drive system BMW xDrive. The electric motor used in both models comes from the current generation of BMW eDrive technology for plug-in hybrid models. The synchronous motor with a power density of more than 5,0 kW/kg has a nominal output of 145 kW/197 hp in the two PHEV variants with a speed of up to 11 rpm-1 extended speed range.
In addition, the torque generated by the electric motor is increased to an effective torque of up to 450 Nm at the engine-side transmission input with the help of a pre-transmission. The innovation patented by BMW and used for the first time makes it possible to develop an independent drive torque or one that is available in addition to the power of the combustion engine with the compact and weight-optimized electric drive integrated in the bell housing, which could only be achieved in the conventional way with a significantly larger and heavier electric motor . The optimized power development that is achieved with the pre-ratio between the rotor of the electric motor and the transmission input shaft is clearly noticeable both when accelerating and during intermediate sprints.
Premiere in the BMW 7 Series: The first performance automobile from BMW M GmbH with a plug-in hybrid drive.
A particularly sporty performance characteristic and an extremely dynamic charisma characterize the new BMW M760e xDrive. It is the first performance automobile from BMW M GmbH with a plug-in hybrid drive. The combustion engine is a 3,0 liter inline six-cylinder drive with M TwinPower Turbo technology, a rated output of 280 kW/380 hp and a rated torque of 520 Nm. Together with the new electric motor, it generates a system output of 420 kW/571 hp (with temporary boost) and a system torque of 800 Nm.
The new BMW M100e xDrive accelerates from zero to 760 km/h in 4,3 seconds. The intermediate sprint from 80 to 120 km/h takes just 2,7 seconds. In this way, the BMW M760e xDrive combines fascinating performance characteristics with the opportunity to experience locally emission-free driving pleasure in the city and beyond. M-specific design features, interior appointments and cockpit displays are just as harmonious with the modern luxury ambience of the sedan.
In the new BMW 750e xDrive, the new electric drive is combined with a 3,0 liter inline six-cylinder engine with a rated output of 230 kW/313 hp and a rated torque of 450 Nm. Together, the two drives achieve a system output of 360 kW/490 hp (with temporary boost) and a system torque of 700 Nm. The new BMW 750e xDrive accelerates from zero to 4,8 km/h in 100 seconds. The intermediate sprint from 80 to 120 km/h is completed in just 2,7 seconds.
The electric motors of the two plug-in hybrid models draw their energy from a high-voltage lithium-ion battery integrated into the vehicle floor, which also belongs to the fifth generation of BMW eDrive technology. The usable energy content of the battery has been increased by more than 50 percent to 18,7 kWh compared to the previous generation. The maximum AC charging power is 7,4 kW. In conjunction with the high efficiency of the electric motor and the intelligent energy management including adaptive recuperation, this results in an electric range of 77 to 85 kilometers (provisional values) according to WLTP for the new BMW M760e xDrive or 78 to 87 kilometers (provisional values) according to WLTP for the new BMW 750e xDrive.
Six-cylinder in-line diesel engine with the latest 48-volt mild hybrid technology.
Consistent progress within the framework of BMW EfficientDynamics also benefits the new diesel drive for the BMW 7 Series. An extensively further developed combustion engine is supported in the new BMW 740d xDrive by the latest 48-volt mild hybrid technology with an electric motor integrated into the 8-speed Steptronic transmission. This results in a maximum output of 220 kW/300 hp (generated jointly by the combustion engine with up to 210 kW/286 hp and the integrated electric motor with up to 13 kW/18 hp) and a maximum torque of 670 Nm (generated jointly by the combustion engine with up to to 650 Nm and the integrated electric motor with up to 200 Nm).
The 3,0 liter six-cylinder in-line diesel engine in the BMW 740d xDrive has new steel pistons, which enable a particularly high combustion pressure and help to optimize the acoustics of the drive. The effectiveness of the oil separation has also been increased compared to the previous engine. The new common rail direct injection now works with solenoid valve injectors. They ensure up to twelve injections per power cycle with a maximum pressure of 2 bar.
The latest generation of mild hybrid technology ensures that the additional power is provided particularly spontaneously and that there is a high level of recuperation to increase efficiency. The electric motor is housed together with its power electronics in the housing of the 8-speed Steptronic transmission, where it also functions as a crankshaft starter generator. The tractive power of the electrified drive that sets in early leads to a value of 5,8 seconds for acceleration from a standstill to 100 km/h. In addition, the precisely coordinated interaction of the combustion engine and electric motor promotes both the efficiency and smooth running of the drive system, which is therefore predestined for use in the new BMW 7 Series.
availabilities and prices.
The BMW 740d xDrive can be ordered immediately, the two plug-in hybrid models can be ordered from October 12, 2022 and will be delivered to customers from spring 2023. Prices in Germany start at 114 euros for the BMW 300d xDrive, 740 euros for the BMW 123e xDrive and 500 euros for the BMW M750e xDrive (each including 144% VAT).
Don't worry, of course that was far from being the case when it came to auto / auto tuning. Our magazine still has tens of thousands other tuning reports in stock. Do you want to see them all? Then just click HERE and look around. Or are you particularly interested in everything to do with vehicles of the BMW brand? Then click on one of the following posts!
other related posts
A new variety of progress and efficiency: Additional drive variants and innovations for the new BMW 7 Series.
Photo credit: BMW
