00:00Welcome to the Technical Deep Dive of the new Porsche 911 Carriera GTS.
00:05Together with engine expert Thomas Brand,
00:07we're taking a closer look at the drivetrain today.
00:21All eyes on the 91 Carriera GDF.
00:25Here it is.
00:27Thomas, but your area of expertise is not design, but what's under the hood?
00:32Exactly, we've taken a very revolutionary step.
00:36For the first time, we've hybridized the 91, the road going 91.
00:41We're already familiar with this from racing, but now we're taking the step into road vehicles.
00:47What's special about it is that we've chosen a special hybrid concept to make a big step forward in performance.
00:54And I'd say we'll take a closer look at this concept right away.
00:57Here we can already see parts of the hybrid concept.
01:00In the front area, the high voltage battery with a 400 volt basis.
01:05And if we now take a closer look at the drivetrain, in the rear area of the vehicle, the icon of the sports car, the boxer engine, and above the boxer engine, the high voltage components are arranged.
01:20If we just look at the main components of the hybrid, in the front area, as I said, this high performance battery with a very high energy density.
01:33We have installed 216 round cells, each with 3.7 volts, in total a 400 volt system that supplies the hybrid drivetrain with energy.
01:43We have 1.9 kilowatt hours of energy at our disposal.
01:47In the middle area, our revised BDK2 Evo.
01:51We have also made it even more robust in terms of torque.
01:54And the special thing about it, you can already see the electric motor here in the middle, which runs, as I said, in the transmission, is oil cooled in the transmission and, as I said, also runs directly between the crankshaft and the output shaft without a clutch in between.
02:09This means that we cannot drive purely electrically.
02:12That was not the aim of this hybridization.
02:15The goal was clear, to do everything for performance.
02:19Here in the rear, as you know, is the boxer 6 cylinder engine, which has been completely redesigned from the ground up.
02:27It has a displacement of 3.6 L.
02:30We adopted the bore, stroke ratio of the 3 L unit.
02:33The engine is flatter, 110 millimeters.
02:36However, as I said, we were able to accommodate the high voltage components in the upper area.
02:41The engine is very compact and lighter than its predecessor.
02:46It also looks completely sealed.
02:48No moving parts are visible from the outside.
02:50No auxiliary units.
02:52We were able to electrify them all after we installed a high voltage system on board.
02:57The revolution is definitely our E-Turbo.
03:00The special feature here is that we have switched from a Baturbo architecture to a Moniturbo architecture.
03:07Here too, the reason for this is due to weight optimization.
03:12We can see this E-Turbo here again in a larger format.
03:15We have a 20 kW engine between the compressor and turbine.
03:19With this electric motor, we can control the speed of the turbocharger and thus also the boost pressure of the unit.
03:26We don't have a wastegate, which is the revolutionary feature here.
03:31This means that we can, or rather have to, recuperate all of the exhaust gas enthalpy, and that's what makes the system so powerful.
03:39The turbocharger rotates at up to 120,000 revolutions per minute.
03:44The power electronics are mounted directly on the turbocharger.
03:47This is practically the heart of our hybrid and therefore also the name giver.
03:52Yes, it's really exciting what the hybrid drive technology can achieve in the GTS and how the individual components work together.
03:59M.
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