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A comment on Toyota patents plans for EV with manual transmission and clutch. Parent comment

Re:Toyota patents plans for EV with manual transmission and ... by Goz3rr on Monday September 05, 2022 @02:26PM (#32727511)
> The lurch when the transmission shifted during launch was too hard on the transmission, and many of them broke under warranty. Tesla had to replace many transmissions. It was easier to fix the problem on the electric side than the gear side.

Seems to me this was more a problem with Teslas build quality or design, because the Porsche Taycan and Audi e-tron GT have a two speed gearbox. From when I drove the e-tron GT this shifting was almost completely imperceptible, no lurching of any kind even when launching it in sport mode. If you're driving in anything other than sport mode the car will spend most of its time in second gear anyways, not even using it from a standstill.

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Re:Toyota patents plans for EV with manual transmission and ... by theluketaylor on Monday September 05, 2022 @05:32PM (#32729757)
Only using first gear for hard launches helps, as does the fact they are using dog clutches in addition to traditional friction plates.

The coolest part is the rear motor can be completely mechanically decoupled from the axel so it can just coast. Most other EV just shut of power to the motor, but Taycan can freewheel on the rear axle.

Jalopnik did a huge in depth on the whole powertrain that is really interesting.

https://jalopnik.com/an-extremely-detailed-look-at-the-porsc...

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Re:Toyota patents plans for EV with manual transmission and ... by labcomputer on Monday September 05, 2022 @07:35PM (#32730750)
> Seems to me this was more a problem with Teslas build quality or design, because the Porsche Taycan and Audi e-tron GT have a two speed gearbox

Actually, Tesla outsourced the transmission, first to Bosch then to Borg-Warner. Apparently neither of them could design and build a suitable gearbox.

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Re:Toyota patents plans for EV with manual transmission and ... by timc3 on Monday September 05, 2022 @02:46PM (#32727739)
I can feel it on my Taycan (it’s one of the most powerful models) but it’s not bad at all.

Porsche has a lot of experience with gearboxes which probably explains why they can build a reliable one when dealing with the power and torque.

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Re:Toyota patents plans for EV with manual transmission and ... by olivermuty on Monday September 05, 2022 @03:02PM (#32727957)
How is the maintenance aspect of this? One of things I like about my EV (Tesla) is that mechanical maintenance is essentially zero, whereas I had to pay 1000 eur every second year to service my Mercedes automatic transmission...
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