Hello!
I found this facebook page about Zero Emission Car some time ago
these guys are showing the progress on building an electric drift car
actually, I happened to be in Wrocław and paid them a visit
and now you can check out the footage from the trip.
I think that's the place, I can tell it because of the missile present
Let's check out that electric car
So, we've arrived, we've got Michał and Maciek from
Wrocław University of Science and Technology
- Hello (simultaneously)
- and they're going to tell you something about this interesting project
As we can see, we've got BMW E36 sedan out here
altough, it's very different than a stock one
because the typical combustion engine was replaced by electric powered unit
Every panel on the car is made of fiberglass
Everything out here is pure carbon fibres.
These guys made all of the bodywork by themselves
It's not a surprise that the engine is out here
Three mounting points
we have been simulating stressing them on MES software to make sure they will work fine.
CAD/FEM student research group of our University gave us a hand during this process.
This engine weighs crazy 12 kg.
This big metal can is a variable frequency drive
and its purpose is to delivery current on the engine
so that it can actually work as it should.
First question that came up to my mind is:
how much power you've got there?
- We've got 100 kW
It may not look like it's a lot
- You can say it's BMW's 318is engine
- So like 140 horsepower? - Yeah.
It's supposed to have around 230 Nm of torque on paper
in theory
but we're planning to overload this engine
and we hope to see 350-400 Nm on the wheels.
- At this moment the car weighs around 700 kg, without batteries.
- With batteries installed, the weight should be around 900 kg.
Yep, it's variable frequency drive radiator.
What exactly is this variable frequency drive and why do you need it?
It is supervising engine's output.
Currency from the batteries goes to the VFD, which converts it to engine-friendly type
and it's going through these thin wires to the engine. And then it can do what it has to do.
Rollcage was done by Sheffler Safety Cages
and we just modified it just to mount the engine in the car
and that's all we had to modify.
Bucket seats come from Mirco
with Swagier Custom Parts mounts
hydraulic e-brake was also made by Swagier Custom Parts
Speaking of hydraulic e-brake:
no gearbox, no clutch
what about moving off and using an e-brake?
You have to engage the clutch anytime you want to lock the rear tires in a regular RWD car.
Our electronics department did this part of the job perfectly
every single part like e-brake or pedalbox have their own sets of sensors
these sensors have their own controllers designed and made entirely by us
and they are located in these little boxes scattered all around the car
Addictive manufacturing (3D printing) technologies was used to made them.
Back on topic: controller is waiting for the e-brake sensor to turn on
and then it shuts off the engine.
So even when you will step on the gas pedal while having e-brake pulled, you won't be able to spin the engine.
This was made using 3D printer
and these are the gas pedal sensors
What's under the hood?
Battery pack's cage
Our Battery Management System is located out here
it's job is to control batteries
charging, draining etc.
It's the main reason why we can't finish the project
because during first test
it blew up.
It's rather expensive part of the project
and it's the only thing that delays starting the car.
What rims do you have?
It's on Japan Racing JR21 as far as I remember, 18 inches
For how long is this project being developed?
It's been around 3.5 years
As we know, car is unfortunately not running right now, you need the BMS
How much money is needed to finish that project?
BMS with all it's equipment needed to plug it into our car costs around 15-20 thousand PLN.
And then we can start thinking about actually driving this beauty.
If you are willing to support this incredible project,
then be my guest, I bet that these guys will be very grateful
I'm positive on that
I think that it's time to put it on the lift
Quick question: bash bar is made of aluminium?
Yep.
Weight is the enemy of the acceleration.
This is our battery pack.
Ultimately we plan on putting one of these under the hood and second instead of passenger seat
We've got the front cover here, it's held by 4 bolts,
you put batteries inside, close the cover and into the car.
We want to made a quick change system so that we will switch the batteries to charged ones and carry on driving
Steering lock kit is made by Cybul Radical Customs
Polyurethane bushings made by Deuter Olkusz
Here you can see the thickness of the wires
A lot of copper for a junkyard ;)
I see you're using ISC suspension, just like my Dzik
Brake calipers and discs are from StopTech
Here is mounting bracket for intercooler
It is connected to the engine through this hole
These are external parts of the cooler,
This is what is inside.
This rounded sheet is mounted on the pipes
and is filled with dry ice
it should be mounted a bit like this
but I can't show it to you, I'm afraid that it will fall apart and brake.
And now it's time for the drivetrain.
Adjustable arms,
Winters rear differential
we have received it from Redux Motorsport, and we're very grateful for this.
We mounted it to the car by ourselves
custom axle shafts,
What is Winters?
It's a dream of almost every professional drifter
This section is a regular differential.
We bolt off that cover
and pull out the sprockets.
(trying to verbalize thoughts)
We have like gear in a gear,
which is easily replacable
and Winters developed wide range of possible ratios, so you can adjust your gearing however you wish.
Here is a quite short driveshaft
which is a connection between engine and differential
and it is custom based on Land Rover.
Weight reduction is going mad out here.
This car looks like top builds from let's say Drift Masters
There is no rear end.
Let's see a place where the work is being done -
second part of the garage.
The prettier one.
Welcome to our kingdom.
This is where we're fabricating stuff.
Table drill,
two lathes,
fully equipped welding site,
This is one of three simultaneously developed student projects in this facility.
It's called LEM.
This one is actually Dakar Rally spec.
It is said that this bike can participate in Dakar.
and actually finish it.
That's what they say.
And out there we have one more nice thing:
it's an autonomical car, it's really driving by itself.
Our car is the very first electric driftcar in Europe, as far as we know.
We know about 2 of this kind in the USA,
Electric cars market is growing constantly
but electric driftcars are not so popular. For now.
How many people are working on this project?
Well, actually a lot.
They come, they go,
for a very long time we were working on it as a team of 6 people
and right now we have 15 members.
To sum up this episode
I hope that you enjoyed it
because I'm very pleased by how this project is going
it was very nice to take a look on it
If you have any questions - put them on comments. Team will certainly respond.
If you want to follow the progress on this car, they'll tell you where to go.
Facebook page - Zero Emission Car
I hope you'll hit that like button
just under here, or over there
Fingers crossed for success, high five!
Eyy, I forgot to give you this!
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