Videos TOP GEAR - Porsche Taycan Turbo S vs Tesla Model S
- Thread starter Rolf
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According to this video of Taycan by Motor Sport, it is sub 9 to 200 and 13.5 to 250kmh. That is insane. Even faster than a 911 Turbo S? I don't think anything non exotic is faster to 250kmh than a Taycan Tubo S. For comparison, the super fast dino sedans - M5/GT63/RS6 take 16+secs to 250 - they will be a tiny speck in the rear view mirror.
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Cause Taycan has 2 speed transmission vs 1 speed in most other electric cars.
People dink electric cars for not being able to accelerate at higher speeds, but strictly speaking, that has nothing to with being electric, but because they lack/don't need multi speed transmissions like ICE cars.
It is kind of a twisted thing - electric motors are so good compared to ICE motors, you can actually get away with 1 speed transmission without compromising performance for realistic speeds most people see in real world, so most don't have it. Of course Porsche being Porsche/German/Autobahn all that, went over and above and added a 2 speed transmission and this is what you get - insane acceleration even at higher speeds that puts in a completely different league compared to similar dino cars.
CrunchSlaughtered
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In fact Porsche has mounted a two speed transmission in order to improve the acceleration from standstill and not the high-speed acceleration. The first gear is used only in the sport programs and the launch control, otherwise the car drives only in second gear, which corresponds to the single gear of other EVs.
Wolfgang
Kraftwagen König
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Available from ZF now. 
ZF shifts up a gear: its new 2-speed electric drive for passenger cars integrates an advanced electric motor with a shift element and appropriate power electronics. The improvement in energy conversion efficiency compared to previous e-drives extends the driving range for each battery charge. And its compact design also makes this new drive system of interest for passenger cars in the compact class. The modular design of this unit can also be fine-tuned and scaled up for use in sports and performance vehicles. Source: ZF
ZF shifts up a gear: its new 2-speed electric drive for passenger cars integrates an advanced electric motor with a shift element and appropriate power electronics. The improvement in energy conversion efficiency compared to previous e-drives extends the driving range for each battery charge. And its compact design also makes this new drive system of interest for passenger cars in the compact class. The modular design of this unit can also be fine-tuned and scaled up for use in sports and performance vehicles. Source: ZF
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Are you sure about this? I know the gear ratios for Taycan are ~16 and ~8 and the 8 matches Model s only gear (8.28). But I don't know the final drive ratio for the Taycan (anyone?).
Model S on other hand has first gear ratio of 8.28 and a final drive ratio of 9.73. I suspect, between final drive and wheel size, the only gear in Model S is probably closer to first gear of Taycan - why they are so similar till 60 and then Model s runs out of breath at higher speed while Taycan shifts into 2nd.
CrunchSlaughtered
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They have different motors with different characteristics. Porsche uses permanent Neodim magnet for the rotor, while Tesla is using an induction motor at the front, until recently also at the rear, but from several months they are mounting a reluctance motor (like the one in the Model 3). I have read somewhere that the Porsche engine has the widest rpm range or having higher maximum rpms. The fact that the two cars have similar max speed and the Porsche works at higher rpm means that even the second gear of Porsche is shorter than the first of the Tesla. Also the fact that the Taycan had a first gear which works up to 60 (don't remember km/h or mph) means that it is very short. But despite this the Tesla is still quicher from stillstand, which means that the Porsche motor has much lower torque at lower rpms.
CrunchSlaughtered
RPM Ruler
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Shifting into second should make the Porsche slower not quicker. That means that the Tesla motor is having a decreasing torque with the increasing of the rpms, while the Porsche motor is weaker at lower rpms but much stronger at higher rpms.
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Not if the staying in the same gear means the motor will rev out of it's power band after a certain speed, then shifting into a higher gear could potentially help get the motor back into the power band. Much like an ICE, except the power band is much broader and starts from 0.
I don't know much about electric motors, but I think both the one in the Taycan and Tesla make max torque from 0 to x rpm and then starts dropping -
Tesla -
Taycan -
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Thanks. I didn't know that ZF supply the gearbox.Available from ZF now.
ZF shifts up a gear: its new 2-speed electric drive for passenger cars integrates an advanced electric motor with a shift element and appropriate power electronics. The improvement in energy conversion efficiency compared to previous e-drives extends the driving range for each battery charge. An...
The Model S is also more than 7 years old and was developed without another performance EV as a benchmark. Neither Mercedes, Audi or BMW have an equivalent car on the market.
hovabongZA
Tire Trailblazer
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I wouldn’t be surprised TG is crap!
CrunchSlaughtered
RPM Ruler
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As I said many times before the Permanent Magnet Synchronous Motor is by no way a match for the reluctance motor (used in Model 3 and from several months also in the model S). Porsche is one generation behind in the technology and I wonder way they made that strange choice.
There is no official information but it seems that BMW in its fifth gen motors is also shifting to the reluctance type motor, which is a step in the right direction.
There is no official information but it seems that BMW in its fifth gen motors is also shifting to the reluctance type motor, which is a step in the right direction.
Cashmere
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haha, Top Gear got busted and are now admitting that the numbers they used in the video are not accurate.
https://www.topgear. com/car-news/porsche-taycan-vs-tesla-model-s-drag-race-clarification
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- Name
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See, this is the stuff I hope to find more interesting in the future. I like internal combustion engines, I like the physics and the engineering behind them, I find it interesting how differences in their design and configuration affect their characteristics...
... so, in this instance, for my education, what are the pros and cons of PMSM versus RM?
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