The Power-Split Serial Hybrid Drive

The Power-split Serial Hybrid Drive

A combination of the previously mentioned drive variants can be used on all-drive vehicles. The power-split serial hybrid drive has a combustion engine and two E-machines. The second E-machine can be activated to power the front axle whenever necessary.

Porsche has adopted this drive concept from near-series vehicles in GT motor sport. Two E-machines that generate a total of 120 kW and the powerful 480 hp Boxer engine in the rear power the front axle of the new Porsche 911 GT3 R. An flywheel accummulator generator/motor is used instead of a conventional high-voltage battery. The two E-machines generate electrical energy during braking, which is then converted into rotational energy in the flywheel accumulator. During overtaking manoeuvres or when accelerating out of bends, the flywheel accumulator assumes the function of a generator and powers the two E-machines on the front axle.