VW Passat EV conversion 3 phase AC Siemens motor and hacked inverter

[DrFruikenstein]

I'm most interested in your inverter/controller (and studying it on your page). I'm still weighing the benefits/drawbacks between using IGBTMs for the output, or going with 3 (75kw) amplifiers and true sine wave output. I plan to use a common industrial 30kw (3600 RPM) extreme duty induction motor, wired for 230 V, and control speed in 45 steps (including 50% overdrive for 5400 RPM). Other than size, and cost of the controller; what made you choose an IGBT output?

[daswada9]

can i install the batteries without battery managing system ?

[DrFruikenstein]

@daswada9

Not a wise thing to go without...

With cheap, liquid filled lead acid batteries, you could get away with not using a BMS. However, I wouldn't go without one in any battery pack as one of the benefits of using a BMS is a longer battery life. The savings alone would pay for the BMS.

A good BMS is required with all other battery types.

[tsport100]

@mrCbeems You MUST be missing something if you don't understand the advantages of 3 phase AC induction over brushed DC.

[endletter]

Hi there, wonderfull conversion you have there! Really inspiring! How do you change the gears if you don't have the clutch? Do you just wait the rews to fall lower then just slot the next gear in or how?

[BizarreNkewl]

I get the impression that using variable torque instead of variable frequency is preferred for better speed control. Would you say that is the case? I'm shopping for an AC drive now. How important is the liquid cooling of the motor?

[mikeyjz]

What motor is it? How many kw?

[lecraemanafest]

Amazing Job, i have been doing research on doing my own conversion. Where did you purchase your motor?

[ollenbergerstudios]

If you don't mind me asking.. how much did you spend on the conversion?

[AndreiMikhailovich]

Draw an electrical circuit

[BrauereiTUBE]

what type of siemens motor is that? How much does it cost? greetings

[florijan535]

Im gona use this motor becaus i can find your type SIEMENS 1PV5135-WS24

But what connection did you use to connect transmision and motor

[urbex2007]

Is there any way of hooking up a control unit to an automatic gearbox to make it shift?

In many videos people go for a manual gearbox but only seem to use one or two gears, which seems a waste. It would be interesting to see an electric car that had an auto box! I will have to search!

[urbex2007]

That looks brilliant, I like cars AND electronics, so will have to watch all your videos. I was thinking of getting the new GM Ampera but it is £30,000 which is far too expensive - so I might have a try to build my own. I'm not sure if I will get it insured in the UK!

[MJDPROFETA]

Show your email so we can talk about this project. I want to buy a kit to convert my car.

[noneuno53]

i'd like to do the same to my "chevy aveo 2007 5speed" but i would like to use

a bedini motor, or for of thim to battery charger as i drive down the rood.

i have looked up bedini motors on u-tube and most will put out 200 to 300 ACv.

and some people put ac inverters on thim.

so what i would like to know is thair a way to make a ac inverter that

runs on ac and not dc?

thats if you know and all so thanks for your time.

[websuspect]

This is very sweet and Complicated but I can see now you built a 3 phase inverter. Jesus would be proud.

[miniUMM]

how fast can it go ?

[etischer]

98.6 MPH on the flats is my record so far.

[harryfodder]

get a diff from an audi or vw with quattro/4motion for the front end. some modification obviously required, but they have a locking diff in them which would make for some real nice burnouts, or traction if you ever got stuck. low rpm torque FTW!

[etischer]

AWD would be nice to have, especially in the rain. I can keep the tires spinning several hundred feet because my 1000lbs of lead is like towing a trailer.

If I were to add a rear diff, I would also add a second motor to power the rear wheels. About 20% of my batteries are taking up the room under the car where the awd system would normally go.

[harryfodder]

hmmm i'd say ditch the transmission. just run the thing directly and make sure that your electric motor is pushing some mad torque, and it will be just fine. you need to remember that this style of transmission is a synchronous type, meaning that all gears are being spun inside, so if your pushing 5k rpm, you're getting some mad drag from both the oil in the tranny, and just from spinning a bunch of dead weight around. its like dragging around a ball & chain everywhere you go.

[etischer]

Direct drive would bring my 0-60 times to several minutes I'm afraid. It would be no different than driving a gas car using only 5th gear. In a very light weight RWD car with a high ratio r&p, it may be feasible to do direct drive with this motor. Since I need a differential, I might as well keep the tranny and gears.

 I am using redline synthetic in the tranny to help reduce noise and friction.

[cant7think7clearly]

Interesting! So by controlling torque you could set it up to have peak torque at 5000rpm etc - apart from the lack of noise gas car drivers wouldn't notice the difference!

[bored1980]

I love that handheld meter setup, nice job!

[jaekib]

Okay. Nuff said. You are a man for all seasons, dude. I just wish I had your range of skills in hand. Milling, welding, electrical/electronics. Are you selling how-to videos?

Thanks for the inspire.

[kissmyhho]

wow man. you have really pulled off a great job.

and a great car to . if you sell the engine will it pay for the conversion? if so you are a complete legend. just another 2 years and top quality lifepo4 will be really cheap. you can get pretty good ones now for $16 each for 3.3volt and 10 a/h

what would the cost to replace the distance capacity you have in those batteries there?

[etischer]

Thanks,

I'm actually waiting for my Lithium battery order to arrive. I will be using 99 100Ah Thundersky cells, this should give me 100 miles range, and slightly more power (higher voltage). Cost was about $12.5k. I am also working with a coworker to develop a new battery management/monitor system.

-etischer

[miniUMM]

i am looking for a motor like yours where can i find it ?