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The car is indeed what I thought it would be for €200.:D
If I get on-board, I'll convert my current ICE, so I don't have to pinch my nose.:D
And I'll increase the budget to €2000.

I've seen your video in which you present the 600A/600V IGBTs.
I guess you'll be changing direction electronically with the full IGBT bridge, the low side on/off (the new TH driver board) and PWM on the high side.

How about two MOSFETs and two schottky diodes? MOSFETs on the high side, diodes in the low side leg. Unidirectional. Any chance that such a setup is compatible with the REVOLT and your ideas?
For driving in reverse I'll use the existing gearbox. Is it possible that the switch for the reversing light on the gearbox puts the controller in low torque mode?
 

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WOW!! Almost 750 pages on ecomodder.
I'd love to see the math for the power stage of this beast. Could be something like five pages A4.
So far haven't found it, only about 700 pages to go. :D But I did see the picture of your build somewhere near the end.
 

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Hi Damien,

I am a new to EV conversions (this is my first post) and have found your videos really helpful. Great job on those!

I think I will also be planning my own €1,000 (or less) conversion on a 1985 Austin Mini I have sitting not doing much. I’ve got a list together of companies in the local area that have anything to do with forklifts (as suggested in your earlier video) to do the legwork in finding a suitable motor. Is there anything you would recommend i ask of a motor?

Thanks and keep up the great work!
 

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planning my own €1,000 (or less) conversion on a 1985 Austin Mini I have sitting not doing much.
That's a very compact vehicle with a low Maximum Gross Vehicle Weight. Given you would probably have to lose the rear seating area to avoid the weight balance shifting too far rearwards, you may get better results from starting with a similar vintage van or pickup (the pickup would possibly be body-on-frame, so it would be easy to mount battery boxes below the loadbay).

I've been browsing eBay for appropriate motors, struggling to find motors above 20kW. I couldn't find any forklift dismantlers near Manchester, maybe they're all oldschool and offline. I posted this thread about an interesting 70kw/310nm motor that might be easier to package in some vehicles, but £1500 would be a bit too much for my first conversion.
 

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That's a very compact vehicle with a low Maximum Gross Vehicle Weight. Given you would probably have to lose the rear seating area to avoid the weight balance shifting too far rearwards, you may get better results from starting with a similar vintage van or pickup (the pickup would possibly be body-on-frame, so it would be easy to mount battery boxes below the loadbay).
Thanks for the reply Emyr. It is very compact but it is the only thing I have to use. Getting another vehicle isn't an option. I am going to be gradually restoring the mini and thought an EV conversion would be a nice touch (and a challenge by the sounds of it).

I am quite aware that I might be biting off more than I can chew with this one. It sounds very simple in theory. Electric motor, connected to the transmission with an adapter plate, use a controller to regulate the power, hook up some batteries and job done. I know (from experience) in practice it never is that easy.

As a "DIY mechanic" I have reasonable experience, I also used to be an auto electrician. However with auto fabrication I have limited experience and I certainly don't have the tools. Can (someone else's) labour be taken off the overall cost or is that "cheating?". I will no doubt need a little help.

Regarding the Kw value of the motor, what would be sufficient for the sub 650kg mini? I am guessing a properly powered 70Kw motor would be pretty quick in this.
 

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Hi CTR

If you are going to use a forklift motor the power on the drive motor is continuous
For a car you can get a lot more out of it
The 11 inch motor in my "Device" has just died (and I've got another for $200) - that was a 10 Kw motor
I was pushing 1200 amps and 340 Volts across it - after 5 years of abuse it died

For a mini you want a 9 inch motor - maybe 6Kw

Read the thread on the motor section
 

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Damien - I've gone through half of your old videos, great stuff in there.

One thing that'd be nice... while your content is kind of vloggy, it's not disposable in the way that most vlogs and newsy videos are. Videos from 4 years ago are still interesting, informative, and worth watching. And, I'd dare say, most people who watch your videos aren't people who just tune in for every video, they're people finding your content long past because it has value.

So, a couple things would really help in an archival sense.

1 - Playlists. Youtube often didn't know what was next in a particular series well enough to recommend it, and I'd have to hunt and peck through your video list. They're pretty quick and easy to make.

2 - Closure! What happened to the Honda bike? What happened to the weird Toyota 2-speed double-motor transmission? Etc.

Great content, can't believe you're such a small channel with how amazing your quality is.

I'm really pumped for this series, I too like doing things on the cheap. I'm particularly interested in what you do for a controller, I'm stuck on mine. I've got an old GE-10 SCR forklift controller from the 1960s but it maxes out around 5kw which isn't even enough for a bike. Not willing to spend lots on anything expensive, and the ReVolt project seems to have stagnated and the only "archive" of it is and endless 750 page thread that I'm not confident enough to reverse engineer or troubleshoot.
 

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Testing the electric power steering system : https://youtu.be/GD5K6TmF5PY
Thanks for the update, it's great to see it as it progresses!

Hi CTR

I was pushing 1200 amps and 340 Volts across it - after 5 years of abuse it died

For a mini you want a 9 inch motor - maybe 6Kw

Read the thread on the motor section
Thanks for the info Duncan. Wow, it sounds like they will take a bit of abuse then, what was volt rating on your motor?

9 inch sounds sensible due to the limited space I have. I will take a look at that motor page now, thanks!
 
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