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Old 08-18-2015, 09:26 AM   #21 (permalink)
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for what you want I would look for ways to convert it to 4wd. You will get more power to the road and imho less weight penalty comparing to electric motor+battery pack+driver.

some 4wd subarus or hondas used viscous oil clutch to connect rear wheels to engine when slip occured. I am no expert, but this sounds like "plug and play" solution to me, as you do not need to mess with your car ECU, just connect it mechanically - so you should have less problems with connecting it.

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Old 08-18-2015, 01:09 PM   #22 (permalink)
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Make it happen for around $5000? Can't have it.

The ImPulse9 motor you're interested in is $1800 already, so you're through two-thirds of your budget on motors alone.

While you're still blue-skying, the ImPulse9 can be had in either rotation. You'll just need to call NetGain and talk to them. And they're reversible in the controllers too, so you can have electrical reverse. But if you have the reverse gear in the conventional transmission, this is not important.
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Old 08-23-2015, 06:53 AM   #23 (permalink)
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Quote:
Originally Posted by ciano22 View Post
The other option is using one single powerful electric motor that is double-sided to drive both wheels. This basically means I will have a locked differential, which may not be ideal, but then again, this car is going to be just for straight lines.
Cornering wouldn't be the only problem, the ABS sensors might bug out too.
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Old 02-06-2016, 08:09 PM   #24 (permalink)
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You could try to find one of these.. https://en.wikipedia.org/wiki/Chevrolet_S-10_EV
There was an article in Grassroots Motorsports a few years ago who my an electric hybrid out of an old MR-2. Put one of theses motors in the front, found some Prius batteries and had an all wheel drive electric hybrid..
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Old 02-06-2016, 11:18 PM   #25 (permalink)
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https://en.wikipedia.org/wiki/Chevrolet_S-10_EV#Sales

492 produced, possibly 60 that weren't crushed at the end of lease.
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Old 02-08-2016, 02:35 PM   #26 (permalink)
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integration-schmintegration

On projects like this I'm not worried about synching up the electronics between engine management and motor control. The engine will behave like it's going downhill. (Just like operating my ICE pusher trailer behind an EV.) The electric rear axle could be completely independently controlled, preferably with a hand throttle, or if off the same accelerator pedal; through a master switch to enable/disable the Warp drive.

However, I think this car will be too difficult mechanically. On any car it is difficult to put one series motor on each rear wheel unless they are offset by using a gearbox, as there's not enough width for two motors, half shafts, and CV joints, let alone at the right angles. Putting a differential beneath a body that wasn't designed for it might be doable if you don't mind a big hole in the floor.
Also, this dual rear motor approach with one per wheel has been oft discussed, but very rarely implemented on a DIY EV. As I recall, the Tropica was then only series-motored 'production car' to do it, and not particularly well at that.
Polychain belts and their cogged pulleys are noisy.

I'd still love to french a motor into the driveline of a pickup one day. That would be much easier.
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Old 02-08-2016, 04:45 PM   #27 (permalink)
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(Just like operating my ICE pusher trailer behind an EV.)
Could you link-ify that please?

I always enjoy seeing the yellow Ghia. What do you think of this?


98lb, 68hp. 10,000rpm single speed at 6.8:1.

When Arcimoto ships the SRK there should be replacement crate motors available. It has a similar single-speed drivetrain with twin motors on a common shaft. I haven't seen the power rating, though.
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Old 02-08-2016, 06:20 PM   #28 (permalink)
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Originally Posted by freebeard View Post
Could you link-ify that please?

I always enjoy seeing the yellow Ghia. What do you think of this?
....
Thanks Freebeard, Is that VW engine case as rare as it looks? I'm guessing freshly prepped 25 hp/ 1100 cc?

Sure, here's some of the pusher trailer exposure.

Here's an article about the pusher and its creator from Popular Science, May 2007 issue.


I've since sent the Straubel pusher on to the Historic Electric Vehicle Foundation in Arizona and am trying to have my own version ready by summer.
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Old 02-08-2016, 06:44 PM   #29 (permalink)
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Quote:
Originally Posted by seifrob View Post
some 4wd subarus or hondas used viscous oil clutch to connect rear wheels to engine when slip occured.
The first 'successful' DIY hybrid I saw was a Subaru Justy with a forklift motor driving the rear wheels, which had been disconnected from the front. It was a fun hack- long since scrapped, I imagine.
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Old 02-08-2016, 08:38 PM   #30 (permalink)
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Quote:
Originally Posted by jray3 View Post

I'd still love to french a motor into the driveline of a pickup one day. That would be much easier.
"French" a motor in the driveline?

Kinda like this:
Technology | XLHybrids

There was also EchoDrive, but they appear to be out of business now.

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