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Kevin Sharpe
Samba Member
Joined: August 28, 2017
Posts: 535
Location: IRL & US
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 Posted: Wed Nov 01, 2017 4:53 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| Hoehleneule wrote: |
| Kevin Sharpe wrote: |
| In the US Tesla use a proprietary charging connector. |
That may explain something I've seen on a few public charging stations that the local electric utility has installed... they have two cables with two slightly different connectors on them. The connectors are clearly the same idea - two huge pins for the big juice and several little pins for data and control - but are different shapes I don't think it's so you can charge two cars at once from one charger. (There are also some Tesla-branded public chargers around, but I haven't taken a close look at their connectors.) |
Here are the global charging standards that we have today (excluding Tesla US and CHAdeMO). It looks like a lot of hassle but in reality it's just like having a different fuel dispenser for petrol and diesel 
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Wed Nov 01, 2017 4:54 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| Hoehleneule wrote: |
It occurred to me that Chapter 8 and 9 of "Tune to Win" by Carroll Smith may be of interest to you. He was writing about open-wheel race cars, so you won't care so much about the wing designs, but he has some other good information about aerodynamics in general and how to get air to flow through coolers. Unfortunately it is out of print and some used copies are priced a bit high; you might check at the library before spending money.
Amazon.co.uk lists some starting at £37. There is one that ships from the US for £17 and is listed as "text only", but I don't know what that means... normally that's applied to something like a college textbook that also comes with a CD or workbook, but I don't think this book ever came that way. I got my copy back when they were still in print and I think it was ~US$25 or so (about £19 at the moment). |
Fantastic, thank you  |
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Fri Nov 03, 2017 6:45 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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I've just blagged another pile of Tesla parts 
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Kevin Sharpe
Samba Member
Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Tue Nov 07, 2017 12:31 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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The open source controller is working with the Tesla 'small' front drive unit. At it's simplest it requires just five control and two power wires
Next week we will repeat these tests with the Tesla 'small' rear drive unit before installing all three versions in vehicles.
Link
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Hoehleneule
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Joined: October 28, 2017
Posts: 24
Location: Missouri
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| Posted: Sat Nov 11, 2017 2:46 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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I finally took a look at the Bug and I guess '74 is too late for the nifty "12 V" lightning bolt sticker. You probably need to look at a late-60s Bug to see one in person.
Does a Tesla "front" or "rear" unit have to always be at that end of the car? I would think the electric motor wouldn't really care... in other words, you could stick a "front" unit in the back of a car and just tell it to turn the other way. On the other hand, maybe the gears are cut to optimize one direction of travel, or the software has a lower speed limiter in reverse, or something like that. |
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67rustavenger 
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Joined: February 24, 2015
Posts: 9770
Location: Oregon
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| Posted: Sat Nov 11, 2017 8:41 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| Hoehleneule wrote: |
I finally took a look at the Bug and I guess '74 is too late for the nifty "12 V" lightning bolt sticker. You probably need to look at a late-60s Bug to see one in person.
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My nifty 12v door jamb sticker.
I really like this Tesla conversion thread. Very cool idea. Thank you for sharing your ideas.
_________________
I have learned over the years.
Cheap parts are gonna disappoint you.
Buy Once, Cry Once!
There's never enough time to do it right the first time. But there's always enough time to do it thrice.
GFY's Xevin and VW_Jimbo! |
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Sat Nov 11, 2017 2:37 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| Hoehleneule wrote: |
| Does a Tesla "front" or "rear" unit have to always be at that end of the car? I would think the electric motor wouldn't really care... in other words, you could stick a "front" unit in the back of a car and just tell it to turn the other way. On the other hand, maybe the gears are cut to optimize one direction of travel, or the software has a lower speed limiter in reverse, or something like that. |
The "front" and "rear" motors are almost identical, the only significant difference is the "front" motor has different castings which give it a more vertical stance. In reality you can choose whichever motor fits your application, "rear" works well in air-cooled VW's, and "front" in Minis and Fiat 500s.
All Tesla motors have a splash lubricated transmission and cannot be run at high speed in reverse.
Here's an image showing the two 'small' motors
Last edited by Kevin Sharpe on Sun Nov 12, 2017 1:37 pm; edited 2 times in total |
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Kevin Sharpe
Samba Member
Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Sat Nov 11, 2017 2:38 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| 67rustavenger wrote: |
| My nifty 12v door jamb sticker. |
Very cool, thanks |
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mandraks
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Joined: November 28, 2004
Posts: 7050
Location: Lawrenceville, Ga
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| Posted: Sat Nov 11, 2017 5:26 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| Hoehleneule wrote: |
I...
Does a Tesla "front" or "rear" unit have to always be at that end of the car? I would think the electric motor wouldn't really care... in other words, you could stick a "front" unit in the back of a car and just tell it to turn the other way. On the other hand, maybe the gears are cut to optimize one direction of travel, or the software has a lower speed limiter in reverse, or something like that. |
there would be no reason to run the motor backwards, they both run the same direction in the car?
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Uli
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'53 3-Fold Oval, L35 Metallic Blue, looking for a narrow hatch panel |
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Hoehleneule
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Joined: October 28, 2017
Posts: 24
Location: Missouri
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| Posted: Mon Nov 13, 2017 10:07 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| Kevin Sharpe wrote: |
| The "front" and "rear" motors are almost identical, the only significant difference is the "front" motor has different castings which give it a more vertical stance. [...] All Tesla motors have a splash lubricated transmission and cannot be run at high speed in reverse. |
Makes sense. I was picturing taking the "front" motor/drivetrain out of a Tesla and turning it 180 degrees in yaw to stick it in the back of a Bus, which means the electric motor would have to spin the other way.
You wouldn't *have* to turn the Tesla powertrain around, though. I guess I was thinking of a typical FWD ICE setup, and if you wanted to mount one of those transversely in the back of a Bus, it would probably help to turn it around from how it sits in an FWD car. If nothing else, the ICE would be designed to be serviced more from one side, so having that towards the back of a Bus might help.
Hoehleneule |
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Hoehleneule
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Joined: October 28, 2017
Posts: 24
Location: Missouri
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| Posted: Mon Nov 13, 2017 10:09 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| mandraks wrote: |
| there would be no reason to run the motor backwards, they both run the same direction in the car? |
See above. I was picturing turning the Tesla "front" drivetrain around to stick in the back of a Bus, but you wouldn't really have to, I guess.
Hoehleneule |
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Kevin Sharpe
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Posts: 535
Location: IRL & US
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| Posted: Thu Nov 16, 2017 12:41 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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We've been playing with ideas for the drive shafts and here's a prototype that allows me to use 'standard' half shafts with the Tesla drive unit
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Kevin Sharpe
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Posts: 535
Location: IRL & US
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| Posted: Sat Nov 18, 2017 5:34 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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These are the Tesla parts that we're using in the bus (excluding the drive unit and batteries)
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GLHTurbo
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Joined: March 30, 2009
Posts: 1376
Location: New Jersey
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| Posted: Sat Nov 18, 2017 6:30 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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can you identify each part for us?
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1957 Beetle
1966 Bus |
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Sat Nov 18, 2017 9:51 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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| GLHTurbo wrote: |
| can you identify each part for us? |
Sure... does this help?
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GLHTurbo
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Joined: March 30, 2009
Posts: 1376
Location: New Jersey
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| Posted: Sat Nov 18, 2017 9:06 pm Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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thanks!
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1957 Beetle
1966 Bus |
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Sun Nov 19, 2017 4:04 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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Some progress 'hacking' the Tesla Battery Management System
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Sat Dec 02, 2017 6:32 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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For the last few weeks the bus has been on loan to a company who are working on a bolt on IRS with integrated Tesla motor mount. The company hope to release a production prototype early next year which will be available for anyone to buy
Now that their work is complete the bus will be returning to our workshop for the next stage of fabrication. We have a lot of work fitting the Red 9 front suspension, upgrading brakes, installing Tesla components, battery boxes, etc., etc. |
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Thu Dec 07, 2017 6:17 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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On our way back to the workshop...
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Kevin Sharpe
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Joined: August 28, 2017
Posts: 535
Location: IRL & US
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| Posted: Thu Dec 07, 2017 11:56 am Post subject: Re: ICE Breaker - converting a 1967 split to electric drive |
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The open source Tesla motor controller is working in a BMW 8 series conversion
Link
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