DIY Electric Conversions - To Clutch or Not to Clutch
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- Опубліковано 13 кві 2014
- EV4U's Answer Man discusses weather or not to use a clutch in a conversion.
EV4U Custom Conversions specializes in teaching others how-to convert a gasoline vehicle to electric. Online EV Workshops available at www.EVWorkshops.com and www.EV4Unow.com Some of the folks that have taken our Workshops are featured here. ev4unow.com/success-stories - Авто та транспорт
I've been reluctant to try my hands on EVs due to the lack of manual transmissions.
I like the driving experience and this will be my next build. Thanks for this very informative video.
Thanks for the tutorial Richard
Thank you very much! Good points
❤❤❤❤ Thanks
Rev matching Datsun driver here - I loved your work on the 280Z! Question: So normally, shifting up, you count on your engine compression slowing the flywheel *below* the speed of the output shaft, so you're going to want to rev up to match the speed of your wheels before you let the clutch out (obviously goes double if you're downshifting and want to maintain speed). If I understand this right, with an electric engine it's the opposite and the flywheel has less friction or drag than the output shaft, so when you get into a higher gear your RPMs are already as high as you want or even too high... do I have that right? Question #2: I played around driving a Tesla and they have that regenerative mode where when you take your foot off the accelerator, the motor pulls back a bit and I guess it recycles the power. Is it possible to do something like that where you can mimic the compression an ICE is fighting against, recycle that power and let the engine slow down in time with or faster than the rest of the drivetrain, so you could get a clutch feel of accurately matching the revs up to the next gear and not wearing your syncros?
The conversions feature regenerative braking that is programmable. The vehicle shifts just like it did with the internal combustion engine.
I think I would use a clutch , it's possible to get light weight flywheels , or use a more powerful motor to compensate for flywheel weight , I'm a drag racer and I'm very interested in building a electric car for the track , cool video.
We use light weight flywheels in most of our conversions. We do not need the mass, just something to mount the clutch to.
Thanks for watching.
EV4U Custom Conversions I'm just now learning about conversions , I'm seeing these Tesla's smoking a bunch of pretty fast drag cars , I got a lot to learn !
@@TheMrmmkkpro true dat
So in your conversions you still need a flywheel,clutch disc and pressure plate to shift just need to wait 3 or 4 seconds between gears or is that just when it has no clutch ?
With a clutch you shift between gears just as you would normally.
Without a clutch it does take longer to shift between gears.
in the video you said less cost. If you're converting a car with a manual trans it most likely has a flywheel and pressure plate. What cost?
That's correct, with a manual transmission you already have the flywheel and clutch. But many converters who keep the clutch, replace the clutch with new components, and/or heavy-duty components, and many lighten the flywheel too. So in most cases, keeping the clutch cost more, but you are right, it does not have to. I would recommend replacing the clutch at time of conversion and never think about it again. Unless the existing clutch was in excellent condition.
I wanna keep my old clutch and tranny to save work but the trans isn't optimal for a warp 9 and weight makes a huge difference in overall cost and a tranny can be very heavy in some cars.
We are waiting for your answer but we are seriously buying the coil and test it how it will work thanks for accepting me as constructer bye
Is there an energy transmission loss through the clutch?
Only when the clutch is disengaged.
Hello,
I work in the material handling industry and very often we have 36V AC Motors ,
What ratings are these electric motors you're using maybe there is some cross compatibility?
We use motors from High Performance Electric Vehicle Systems. Check out there complete offerings at HPEVS.com
I am sure Nigeria can accept your technology in short time
I know that i may not get an answer but do i need a clutch if the electric motor does not shift gears? I mean it will have a reverse but will only engage when completely at a stop. I just bought a rc truck that i want to get an electric conversion on. there is one that has a clutch that this company had designed for the truck but there is another company who designed one that has no clutch that would be cheaper to buy but id have to put more money into cuz theres no motor and esc with it. so the price will be kinda close i guess. The one with the clutch , offers no replacement parts at this time. Im at a stnd still as to what to do. Just trying to get info as to what to do. If the clutch would be important in this matter.
Check this video for more information about using or not using a clutch. ua-cam.com/video/20hncy7y4_I/v-deo.html
Looking at the newest cars with lever gear shifting on the steering wheel, I would think one would want an electric motor that would coordinate well with a transmission, and combined with better and better batteries, it could really continue to be major advances in transportation. Less cost and weight to me seem to avoid the issue of making an electric car that the masses will use and that will be safe for the average driver. What a horror to be driving something that wouldn't stop, or would stick at a high speed. Disengaging a transmission is a kneejerk reaction that should still be there....opinion only.
How often do you need to shift gears in an EV?
Most factory produced EV do not require shifting. Most conversions require some shifting. For more information watch some of our UA-cam videos. Here is one that explains why we use a transmission in most conversions. ua-cam.com/video/jXBGVoAQZnM/v-deo.html
That also works with automatic gearbox?
Yes, but not recommended.
That sounds really hard to do.
what about uphill?
Good point. Having a clutch allows you to shift faster and easier, so if you needed to down shift while climbing a grade, you would appreciate having the clutch.
so a non-clutch electric car cannot go uphill even though it has a lot of torque?
Did not say a non-clutched electric car can not climb a grade. If you needed to down shift while climbing a grade, it is faster and easier to do so with a clutch, versus trying to down shift without one. Either way will work. Please direct any future questions or comments to info@EV4Unow.com Thank you.
Why use the gearbox at all? When you run a dc motor, it is "just" a question of power.
Check out our video, "The EV Answer Man, Episode 8", for the reasons why a transmission is used on conversions.
But a motor for each wheel is more better than anything, or at least the front wheels and the back ones could get the typical motor, them all helping each other out I dont see why it'd be bad at all
Dog box it and you won't need one