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Toyota patents plans for EV with manual transmission and clutch
181–190 of 267 posts
Re: Toyota patents plans for EV with manual transmission and clutch
#182Earlier quoted context omitted.
Electric motors don’t need manual (or indeed, any) transmissions because they have a basically-flat torque curve across their entire RPM range. The only options for an electric motor are fake transmission or no transmission, and the parent is arguing for the latter and against “transmission cosplay”. A real manual transmission on an electric car would have no point.
Electric motors draw more current when starting up and when delivering high torque. It's conceivable that with a transmission, maximum current draw could be lowered, perhaps leading to longer-lived batteries or lower demand for battery cooling, smaller gauge wiring, smaller motors, or other cost savings. Don't know for sure on any of this, but it seems plausible. On the other hand, if it really made a difference, why…
I remember reading somewhere that the estimated efficiency gain of having 2 gears on the Taycan is 5%. On a typical 60kWh battery car, that's 3kWh... hardly worth the effort nor the cost.
On the Taycan it makes sense because top speed. For any "normal" EV where top speed is not a concern, it's probably not a choice that makes sense.
Re: Toyota patents plans for EV with manual transmission and clutch
#183Earlier quoted context omitted.
why should manual transmissions be limited to only petroleum powered engine? Rage, rage against the dying of the light.
Electric motors don’t need manual (or indeed, any) transmissions because they have a basically-flat torque curve across their entire RPM range. The only options for an electric motor are fake transmission or no transmission, and the parent is arguing for the latter and against “transmission cosplay”. A real manual transmission on an electric car would have no point.
Three cylinder engines have a flat torque curve. They still benefit from a transmission.
Re: Toyota patents plans for EV with manual transmission and clutch
#184Earlier quoted context omitted.
Nissan does this with their CVTs as well. Apparently they found that people didn't really like the "all one gear" feel, so they programmed in "gear changes" where the CVT changes ratio like an automatic. You still get the CVT advantage when going up a hill or stomping on the accelerator, though. They've been phasing out their CVTs in favor of traditional automatics, though.
Automatics now routinely have 7 or more gears. That's essentially a CVT for all practical purposes.
My automatic (non DCT) car has 8 gears and I usually don’t even feel the shifts after 3rd gear at all.
Re: Toyota patents plans for EV with manual transmission and clutch
#185Earlier quoted context omitted.
Is it coincidence that so many designs first seen in Audi seem to show up in Hyundia/Kia at a short delay?
The first vehicle with a regen steering wheel paddle was the 2014 Cadillac ELR, followed by the Chevy Volt and Chevy Bolt in 2016.
Their implementation of the paddle shifter was not the shiftable kind [1]. It was a lever you had to continually press to hold regen. Imagine your hand cramping up trying to keep it engaged. To this day GM has this odd implementation.
Re: Toyota patents plans for EV with manual transmission and clutch
#186Earlier quoted context omitted.
I wish EVs were actually silent. In reality they are just as loud as a normal ICE vehicle above 20mph/30kph. The reason for this are the tires which have gotten so wide over the past decades that they are now the sole noise you hear from a normal car.
There’s a regulatory requirement that specifies how much minimum noise should be emitted in each frequency band. All BEVs need this pedestrian alert system. It takes into account that partially deaf people may not be able to hear certain frequencies say tire noise band.
There are a few models of ice cars that basically are very quiet when they drive slowly. Nobody ever complains about how quiet they are. It's not a problem. And it was never a problem in the past. It's only a problem when EV's are concerned. Or rather it's a problem people imagine is real because other people who also did not do their homework say it is so based on what they've heard.
Re: Toyota patents plans for EV with manual transmission and clutch
#187Hyundai, Kia, and Audi EVs have paddle shifters which controls the level of regeneration braking and feels very much like downshifting. One paddle (+) steps up the regen to the point where the “drag” gets progressively stronger. The other paddle (-) steps down regen to 0 where the car can coast and there is no regen drag whatsoever. Note this is not the same as Neutral. The car is always in Drive. The function only a…
I have an L button in my EV car and two settings are way enough.
Fine-tuning this doesn't really add any value
Re: Toyota patents plans for EV with manual transmission and clutch
#188Earlier quoted context omitted.
why should manual transmissions be limited to only petroleum powered engine? Rage, rage against the dying of the light.
Electric motors don’t need manual (or indeed, any) transmissions because they have a basically-flat torque curve across their entire RPM range. The only options for an electric motor are fake transmission or no transmission, and the parent is arguing for the latter and against “transmission cosplay”. A real manual transmission on an electric car would have no point.
They do have transmission. I checked it a year ago because I thought they don't.
But it's fixed.
Re: Toyota patents plans for EV with manual transmission and clutch
#189Earlier quoted context omitted.
Electric motors don’t need manual (or indeed, any) transmissions because they have a basically-flat torque curve across their entire RPM range. The only options for an electric motor are fake transmission or no transmission, and the parent is arguing for the latter and against “transmission cosplay”. A real manual transmission on an electric car would have no point.
Three cylinder engines have a flat torque curve. They still benefit from a transmission.
(street triple checking in) mostly flat.
Re: Toyota patents plans for EV with manual transmission and clutch
#190Maybe this will drive more ICE to electric conversions.