Electric Cars

[Sylvi]

Members of the forum,

Electric Super Sports Car

Would going 0 to 60 mph in 3.5 seconds suit you? Fast enough? Then you might like this electric super car, the Radical SRZero, made by a British sports car firm Radical Sport scars. The machine is powered by two EVO AFM (axial flux motors), one for each drive shaft which eliminates the need for a differential gear. The relatively flat motors are a sandwich of the stators and rotors as discs on the same axis (instead of concentric cylinders), which allows for a greater effective electromagnetic area and a torque that is proportional to the cube of the machine radius.

I receved above info today by Email I want to share with other members .

Wijesinghe

[MasterDon]

edited-double posts.

Edited May 27, 2010 by MasterDon

[MasterDon]

yup the srzero was launched earlier this year...and they are not a new company,radical have a long history of making trackday specialis with hayabusa engines.

interesting drivetrain though,this has basically two electric "engines",one per rear wheel,with no linkage between them and no differential...i'm guessing electronics have taken the job of the differential.

Edited May 27, 2010 by MasterDon

[harshansenadhir]

yup the srzero was launched earlier this year...and they are not a new company,radical have a long history of making trackday specialis with hayabusa engines.

interesting drivetrain though,this has basically two electric "engines",one per rear wheel,with no linkage between them and no differential...i'm guessing electronics have taken the job of the differential.

Tesla was the first manufacturer of an electric super sports car in the recent past with some economical success as well if i'm not mistaken.

[MasterDon]

Tesla was the first manufacturer of an electric super sports car in the recent past with some economical success as well if i'm not mistaken.

oh yes,the Tesla roadster was no doubt the pioneer in the whole sports/electric market,but that has a 'conventional' one motor layout.whereas the radicals twin motor idea saves a lot of weight and supposed to be more efficient...I remember the first time I saw this whole concept of having individual motors per wheel.It was on a company demo car for Delphi electronics called the Delphi CERAM(it was featured on autocar sometime back,,june '04 to be exact)...I never thought it would make it in to a production car this soon.

[Rebel]

Tesla and Toyota are going into a joint venture to build these stuff. Might be interesting considering the benefits.

[Sylvi]

yup the srzero was launched earlier this year...and they are not a new company,radical have a long history of making trackday specialis with hayabusa engines.

interesting drivetrain though,this has basically two electric "engines",one per rear wheel,with no linkage between them and no differential...i'm guessing electronics have taken the job of the differential.

Sir,

You may be correct.

Wijesinghe.

[dakrazyman20]

The thing about electric cars is they are super fast off the line, but the bulk of the batteries tends to upset handling quite a bit. Tesla have gone to great lengths to solve this but it still shows. Plus charging the vehicle from yer wall outlet takes a month of sundays. Ive gone in some electric econo boxes such as the g wiz (totally crap!) and the prius (new one is so so) and without the sound of the engine reving its quite eerie and puts me off, its like yer movin but theres nothing....

I'm more a fan of hydrogen fuel cell cars suchas the Honda clarity as the application is nearer to that of current cars meaning production infrastructure doesn't change and once hydrogen can be extracted more easily it wont cost more than a petrol vehicle to run and all u get out the back is water. Plus all the harmful chemical batteries are eliminated.

[thadiya]

Latest electric car from Tesla:

http://autos.yahoo.com/news/tesla-motors-model-s-electric-sedan-will-be-faster-than-porsche-911.html

[Gummybr]

Did you guys forget this? They were planning a one make race in UK for the Survolt.

[The Stig]

The thing about electric cars is they are super fast off the line, but the bulk of the batteries tends to upset handling quite a bit. Tesla have gone to great lengths to solve this but it still shows. Plus charging the vehicle from yer wall outlet takes a month of sundays. Ive gone in some electric econo boxes such as the g wiz (totally crap!) and the prius (new one is so so) and without the sound of the engine reving its quite eerie and puts me off, its like yer movin but theres nothing....

I'm more a fan of hydrogen fuel cell cars suchas the Honda clarity as the application is nearer to that of current cars meaning production infrastructure doesn't change and once hydrogen can be extracted more easily it wont cost more than a petrol vehicle to run and all u get out the back is water. Plus all the harmful chemical batteries are eliminated.

+1 but you seemed to have missed a point.

The Honda model still wont operate any differently than an ev car cause the engine is only there as a generator to send power to the batteries, then that power is sent to the electric motors so there wont be any noise like conventional gasoline cars.

The preferred hydrogen model for me is the bmw one since it doesn't have any electric motors or batteries, it just uses a simple process of using hydrogen instead of petrol to power a conventional engine. And its very practical as well since you can switch between petrol and hydrogen any time.

[Sylvi]

From the Web

Trial for Zireless charging of electric cars set for London

15 November 2011

The UK¶s first electric vehicle wireless charging trial is to start in London next year. The technology, which allows EV drivers to charge their batteries by parking over an inductive powertransfer pad, is to be rolled out following its purchase by US telecoms firm Qualcomm from its creators HaloIPT.

The pre-commercial trial is expected to start in early 2012 involving up to 50 EVs and based partiallyin the ¶Tech City¶ cluster of internet and technology businesses in East London. Qualcomm¶s partners in the UK government, Mayor of London's office and Transport for London hope the areas entrepreneurial community will create services and applications that will encourage more

People to drive EVs.

Prime Minister David Cameron said: µCreative, high-tech advances such as this are extremely important as we work to rebalance our economy and the decision to trial this at Tech City shows confidence in the UK as an ideal place for innovation and investment. Mayor of London Boris Johnson said: µIn my quest to deliver cleaner air for the capital, I want London to be the electric car epicenter of Europe. Encouraging a massive uptake in electric driving is key to

This vision of becoming a zero-emission city.

We are already on this path with Transport for London delivering a citywide charging network, but we need to go further. This trial is an innovative new facet of my plans, with the promise to help

drivers go electric with even greater confidence.¶

Andrew Gilbert, executive vice-president of the European Innovation Development at QUALCOMM, said: µWireless charging eradicates the EV plug-in cable and makes charging of electric vehicles

Simple and easy for drivers.

UK minicab company Addison Lee and EV charging infrastructure operator Charge master have also agreed to participate in the London trial. µAs a company with a keen eye on the future, we believe that the WEVC [wireless electric vehicle charging] London trial will provide unique insights into how wirelessly charged electric vehicles could

be used in our business,¶ said John Griffin, chairman of Addison Lee.

HaloIPT¶s charging technology was originally developed by researchers from Auckland University in New Zealand and spun out and developed by Auckland Uniservices and Arup. QUALCOMM acquired all of the technology and other assets of HaloIPT for an undisclosed sum and all members of the HaloIPT team have joined QUALCOMM.

Sylvi Wijesinghe.

[XBeat]

[Charith H Jayasinghe]

Voyager 01 is not a electrically driven isn't it? It has some sort of proton thrusters and gravitational field assistance I think.

Edited August 29, 2013 by Charith H Jayasinghe

[Sylvi]

Members.

I do not want to start a new thread. Therefore I post below. The person who is a very senior our own Automobile engineer who did and create history.

Electric Vehicles history In Sri Lanka.

Mr. Dathusena W. Senanayake.1st Electric Vehicle was introduced to Sri Lanka by Automobile Engineer [ A.M.I.M.I. / M.I.A.E. (SL).] President of Lanka Electric Vehicle Association.

The first vehicle to be register in Sri Lanka in 2004 by Lanka Electric Vehicle Association was a three wheeler which was imported iN CKD condition assembled in SL.The registration Number of this Vehicle is. J.D. 6399.

It was fitted with a 72 Volts DC Motor and 12 deep cycle 6Volt Batteries. In 1995 he converted ISUSU Fargo Diesel van, to an Electric Vehicle.

To register this vehicle he had a problem,as there was no. Provision in the motor traffic act to register electric vehicles.

He lobbied the relevant authorities and got the act amended in year 2004 to accommodate EVs.

We had from the year 1900 Electric Tram Cars made in UK which were later replaced by Trolley Buses. Powered DC only where overhead Power lines were there from Colombo Fort to Boralla junction.

Sylvi Wijesinghe.

[Komisiripala]

Now they're registered under E no? We can expect a flurry of plug in cars and the like soon

[Sylvi]

Now they're registered under E no? We can expect a flurry of plug in cars and the like soon

Komisiripala,

I am trying to import one unit DC72 volts motor.TO RUN ON LEAD ACID BATTERIES as an trial order to fix on to a vehicle.

Negotiating the cost with a Chinese exporter. According to their quoted cost FOB US 1350/00.

I requested a reduction if it is Ok. I will import same and try this out for an old vehicle which, I can buy for under 50000/=.

They had informed me that DC motor can carry 1 ton. fixing to the existing gear box.

Can drive on any gear because the motor speed is controlled by electronics.

Sylvi Wijesinghe.

[jaguar]

The starting price of the Mission R motorbike is $29,999. No wonder they sell such few of these.

[Sylvi]

The starting price of the Mission R motorbike is $29,999. No wonder they sell such few of these.

jaguar,

Now motor cost have come down if I give a big order. They inform no L/C, only Wire transfer (T/T) I am trying to send L/C if not drop.

Mr. Senanauake told me few years back cost motor was to him abode 1000/= US$ for his three wheeler.

He saved the CKD form three wheeler was without engine only basic chassis and all others were was from from S L market..

7 people can travel with the driver.

Sylvi Wijesinghe.

[Crosswind]

Komisiripala,

I am trying to import one unit DC72 volts motor.TO RUN ON LEAD ACID BATTERIES as an trial order to fix on to a vehicle.

Negotiating the cost with a Chinese exporter. According to their quoted cost FOB US 1350/00.

I requested a reduction if it is Ok. I will import same and try this out for an old vehicle which, I can buy for under 50000/=.

They had informed me that DC motor can carry 1 ton. fixing to the existing gear box.

Can drive on any gear because the motor speed is controlled by electronics.

Sylvi Wijesinghe.

It's not as simple as it sounds for a full fledged car. I've been contemplating on a project of this scale but the cost prevents me. You can expect around 2 million for the equipment and installation work alone.

First of all, you can't do it with a 50000-rupee old car. The chassis would have corroded to the extent that it will not be able to hold the weight of the batteries alone. You may need a station wagon or a van. The vehicle should be reliable enough to drive and should be practical enough to use after the project is over. The cheapest bet is an old hearse or an ambulance, if you can live with the spooks in them.

I expect about 500,000- 800,000 minimum set aside for the car. And I will probably look for a Euro such as a Volvo (850 perhaps) or a Peugeot. They are much more spacious than Japs and Euros of that era were much stronger in build. Parts are readily available for these cars from UK suppliers.

I simply fail to understand how a DC motor can be coupled to a mechanical gearbox. I believe those guys don't know what they are talking about. Maybe just the gear selector can be used as a motor speed regulator.

Anyway here is a list of major parts you need for an EV conversion, based on a project on the Internet. I got down this list a few months back when I was thinking of an EV project.

Battery Pack

Motor

Controller

Charger

Flywheel Hub

Gear adaptor

Bushes

Battery Monitor

Vacuum Pump

Battery Boxes

Contactors

DC/DC converter

Motor Mount

Switches

AC Unit

Battery Coolers

Thermostats

Battery clamps

Fuses

Accelerator Pot

Safety Circuit Breakers

heatsink

fan

Voltage Gauge

Current Gauge

Battery clamp covers

Lugs

Relays

Cables of varying ampearage

Shock absorbers

Coil springs

Lower arms (custom made)

Edited November 12, 2013 by Crosswind

[Watchman]

I agree with crosswind on the complexity.

And from what I have read, you dont even nee a gearbox. It's simply a matter of increasing/decreasing the power/voltage given to the motor. Higher the voltage provided the faster the motor turns and faster the car goes (theoretically with an infinite top speed). That's where the complex electronics come into play.

[Komisiripala]

There's a Swedish company which makes a complete convo for an rx8. My bro tried to do this. Bit cost for the unit was 4 mil without tax whatever. And then there's the cost for the car. It's called an e8. Google it. Patta idea and they ship out the whole kit in one big crate with instructions

[Kavvz]

There's a Swedish company which makes a complete convo for an rx8. My bro tried to do this. Bit cost for the unit was 4 mil without tax whatever. And then there's the cost for the car. It's called an e8. Google it. Patta idea and they ship out the whole kit in one big crate with instructions

I googled E8 and ended up here. Am still deciphering it, and I'm not gonna lie, that's some heavy stuff, but I remain optimistic that the directions for converting a RX8 into an electric car will be in there somewhere...

Okay jokes aside I couldn't find a lot of info on the electric RX8. The only thing of substance I found was to a Slovenian company that is as listed here. Is that the same company you mentioned?

[Komisiripala]

No that's them. Used to call it the e8, but I guess that was before Audi launched the electric r8. We were in touch with these guys discussing the possibilities for a while. They were very interested, I think one or two of them planned to make a vacation out of it to come help us put it together. But both parties gave up the idea simply because of cost. Bro now wants to someday import a tesla model s. Gotta hand it to him he's one ambitious bugger. If he does you guys will be the first to hear about it!

[jaguar]

No that's them. Used to call it the e8, but I guess that was before Audi launched the electric r8. We were in touch with these guys discussing the possibilities for a while. They were very interested, I think one or two of them planned to make a vacation out of it to come help us put it together. But both parties gave up the idea simply because of cost. Bro now wants to someday import a tesla model s. Gotta hand it to him he's one ambitious bugger. If he does you guys will be the first to hear about it!

Tesla Model S huh.. Interesting choice. I am also thinking of getting down one, but after some time. Maybe sometime next year. But the thing is obviously there will be a few maintenance problems because very few people might be knowing about its powertrain and other stuff. I think it would be a better thing to buy it after there is some dealership opened here and as far as I know Tesla isn't giving out any dealerships to agents. It seems that they want to handle the global sales by themselves. Anyone can order one through their website and they have just started delivering the RHD ones to the UK. So, I have to wait and see if what their next move is. And one of the main advantage would be that their won't be a high import cost because electric cars aren't taxed much in SL.