Search found 22 matches

by Sawnoff
Thu, 07 Jan 2010, 14:33
Forum: Members Machines
Topic: AC Lithium Merc
Replies: 18
Views: 3270

AC Lithium Merc

No sarcasm - I have had the AC24LS on my radar in the past because it is a ready-to-go system that has been proven in a number of conversions, and I don't have the right technical background to confidently create something out of bits and pieces. The light weight is a real advantage in my Karmann Gh...
by Sawnoff
Thu, 07 Jan 2010, 04:40
Forum: Members Machines
Topic: AC Lithium Merc
Replies: 18
Views: 3270

AC Lithium Merc

Is that an A-class Merc? The floor was originally designed to package a fuel cell system: perfect space for the batteries! Neat conversion, well done! Your motor looks like the Azure Dynamics AC24. Goes well you say. It'd be great to get some acceleration times - if you get a chance. Did you source ...
by Sawnoff
Thu, 07 Jan 2010, 04:01
Forum: General EV Discussion
Topic: 200km @ 100kph ute, possible?
Replies: 59
Views: 6662

200km @ 100kph ute, possible?

What is the report you are referring to regarding regen and ABS? Yes, I'm curious, too. Ross Blade has managed to get ABS to function in his commercially available Hyundai Getz conversions . OEM EVs (Tesla, EV1, MiEV ...) all have ABS. And all have regen. It is possible to have the hydraulic brake ...
by Sawnoff
Sun, 03 Jan 2010, 03:38
Forum: EV Racing
Topic: White Zombie Upgrades
Replies: 5
Views: 2077

White Zombie Upgrades

Kokam seems to be the battery of choice for those who can get it. ProEV have a Subaru Impreza racing successfully against ICE competitors, using a 35.15kWh battery back, 2 Siemens motors and 2 Simovert controller/inverters. Megabucks, but with a bit of sponsorship.   Good to see Kokam willing to hel...
by Sawnoff
Sun, 03 Jan 2010, 03:26
Forum: General EV Discussion
Topic: 200km @ 100kph ute, possible?
Replies: 59
Views: 6662

200km @ 100kph ute, possible?

... and i want to try to encorporate as much of the previous features as possible (air con). Creature comforts will need a beefier battery pack capacity. Air Con uses about 1kWh. I guess you probably don't want to give up air con on the drive to Mackay. Power steering also needs about 1kW- although...
by Sawnoff
Mon, 21 Dec 2009, 21:24
Forum: EV Motoring
Topic: Range Anxiety killed the EV1?
Replies: 17
Views: 2375

Range Anxiety killed the EV1?

BTW - what were the specs of the EV1 battery pack (voltage, kWh)? I was amazed at the John Wayland experience of increased range estimation with highway cruising at 58 mph and the seemingly small impact on battery SOC following 70-75 mph highway driving. (Thanks for sharing the link!) I'd be interes...
by Sawnoff
Mon, 21 Dec 2009, 20:43
Forum: EV Motoring
Topic: Range Anxiety killed the EV1?
Replies: 17
Views: 2375

Range Anxiety killed the EV1?

... it's perception. People are used to what they have. And people are used to having what they think they need (or aspire to): * Large 4WD suburban taxis * 250km/h+ Lambo/Ferrari/Porsche/BMW/... * 3.5 tonne towing capacity (for a Jetski) One challenge for EVs will be addressing people's desires to...
by Sawnoff
Mon, 21 Dec 2009, 02:02
Forum: General EV Discussion
Topic: Inventor Microturbine Power Unit wanted for ev
Replies: 8
Views: 1336

Inventor Microturbine Power Unit wanted for ev

Granted, compressed air is not a likely candidate for a long range extender. The tanks would be huge, or the energy used to compress the air would be huge. There are developments with tesla turbines (real ones, not made of CDs) that are using pulse detonation to turn them. They'd be more of a conten...
by Sawnoff
Sun, 20 Dec 2009, 03:36
Forum: General EV Discussion
Topic: Inventor Microturbine Power Unit wanted for ev
Replies: 8
Views: 1336

Inventor Microturbine Power Unit wanted for ev

I was mulling over the turbine range extender idea a while back and got distracted by the tesla turbine. It can run on compressed air so you could keep the zero emission sticker on the bumper. Some guys have built tesla turbines out of old CDs and a spindle case, and one crazy dude used it to power ...
by Sawnoff
Fri, 18 Dec 2009, 03:14
Forum: Batteries, charging, management and monitoring
Topic: CAN BUS Monitor
Replies: 17
Views: 3628

CAN BUS Monitor

As TJ mentioned above - CAN is a protocol. The CAN bus consists of 4 wires: CAN-HI, CAN-LO, GND, 12V. The CAN-bus doesn't care what sort of connector is used. I have seen 9-pole Dsub, RJ45, lemo, USB, mil ... all used effectively. The prevailing technology will depend on whatever is in the parts bin...
by Sawnoff
Fri, 18 Dec 2009, 01:59
Forum: Technical and conversion discussion
Topic: Converting a Scenic Dynamic To ZE ..
Replies: 2
Views: 702

Converting a Scenic Dynamic To ZE ..

Hi GJOESQ, welcome to the forum. I'm pretty sure the Renault EV is based on the new Scenic/Megane platform which was launched early 2009, not your 2001 model. Generally speaking, older cars are easier to convert to EV as they have fewer confusticated gizmos. Air conditioning, vacuum assisted brakes ...
by Sawnoff
Tue, 08 Dec 2009, 16:14
Forum: Technical and conversion discussion
Topic: RUF porsche has no BMS ?
Replies: 2
Views: 741

RUF porsche has no BMS ?

love to know what type of controller they used The photo of the engine compartment shown on the website you quoted looks like the UQM controller. The UQM Powerphase 150 has a peak torque of 650Nm (claimed figures of the RUF Porsche) but only gets its peak power when fed with 340V - 420V. If they on...
by Sawnoff
Mon, 07 Dec 2009, 00:58
Forum: Technical and conversion discussion
Topic: Electric Ghia: ABB VFD bench test and more
Replies: 4
Views: 979

Electric Ghia: ABB VFD bench test and more

Wow - I'm impressed, and just a little bit envious! You even still have space behind the seats!

So that's about 350kg of Greensavers in there. Have you uprated the springs or something? It looks like your Ghia is at close to stock ride height.

Great work!
by Sawnoff
Sat, 28 Nov 2009, 02:20
Forum: Members Machines
Topic: Sam's Karmann Ghia
Replies: 10
Views: 3037

Sam's Karmann Ghia

Greensavers will be out. You won't get your target range out of them. sorry, it was the weight that I was thinking about - if the 350kg of SLA batteries will get into a Ghia, it should be easy to get 300kg of Li-Ion in. Have you got any quotes yet on the 11kW motor? Not yet - I've been weighing up ...
by Sawnoff
Fri, 27 Nov 2009, 18:11
Forum: Members Machines
Topic: Sam's Karmann Ghia
Replies: 10
Views: 3037

Sam's Karmann Ghia

How much torque does the VW gearbox take? The stock vehicle produced an ICE peak torque of 80Nm, so I would expect the transmission to be able to cope with up to 150Nm of torque. I plan to program the torque control to smooth out any large step changes or spikes and thus protect the gearbox interna...
by Sawnoff
Fri, 27 Nov 2009, 05:31
Forum: Members Machines
Topic: Sam's Karmann Ghia
Replies: 10
Views: 3037

Sam's Karmann Ghia

Vehicle is off to begin restoration of the bodywork this week. http://forums.aeva.asn.au/uploads/698/KarmannGhiaResto_0911__016_2.JPG After the feedback on the Azure Dynamics AC24LS motor here (thanks for the feedback) I have been sorting through industrial ACIM options. My preferences are leaning t...
by Sawnoff
Fri, 06 Nov 2009, 02:34
Forum: Electric motors and controllers
Topic: Aure Dynamics AC24LS + DMOC44
Replies: 17
Views: 3165

Aure Dynamics AC24LS + DMOC44

Thanks for the confirmation, woody.   I'm a bit puzzled though: P-cont may still be ~11kW - which is plenty. Isn't there a 'recalculation factor'? i.e. 400V/220V * 11kW = 20kW If I were to pick a bigger motor, I assume the VFD could limit the T_max, but only if the VFD has torque control, right? che...
by Sawnoff
Thu, 05 Nov 2009, 16:20
Forum: Electric motors and controllers
Topic: Aure Dynamics AC24LS + DMOC44
Replies: 17
Views: 3165

Aure Dynamics AC24LS + DMOC44

Yeah, the original VW 30kW (peak) ICE only put put a max of 80Nm of torque at 2000rpm. Keeping the clutch could be a good thing. A bit like a mechanical fuse. Problem is, the clutch on the donor vehicle is missing and there probably won't be enough room to refit it and still have enough room for a 1...
by Sawnoff
Wed, 04 Nov 2009, 18:13
Forum: Electric motors and controllers
Topic: Aure Dynamics AC24LS + DMOC44
Replies: 17
Views: 3165

Aure Dynamics AC24LS + DMOC44

Thanks for feedback! Until now I had been following the KISS principle, but reading Richo's clinical and sobering analysis of the AC24LS specifications and comparing them to the suggestions made to e-ghia I'm starting to warm to the option of an industrial motor/VFD combination. Such as ABB's M2AA 1...
by Sawnoff
Tue, 03 Nov 2009, 05:26
Forum: Members Machines
Topic: Sam's Karmann Ghia
Replies: 10
Views: 3037

Sam's Karmann Ghia

Righto! I've been reading this forum for the past 12 months and have been really impressed with the knowledge and the projects that have been shared on the site. I will try not to lower the average with my contributions! Table of Contents: 1. Donor Vehicle 2. EV plans 3. Big Questions 4. Change of p...
by Sawnoff
Tue, 03 Nov 2009, 03:49
Forum: Electric motors and controllers
Topic: Aure Dynamics AC24LS + DMOC44
Replies: 17
Views: 3165

Aure Dynamics AC24LS + DMOC44

I'd be keen to hear (read) what opinions there are on the Azure Dynamics AC24LS ac motor and its accompanying DMOC44 controller. I see they have been used the Blade Electron (Getz) and is even available as a kit for a Porsche 914 (Electro Automotive) - but they don't seem to get much of a mention on...
by Sawnoff
Fri, 30 Oct 2009, 03:23
Forum: Admin Notices
Topic: Search error
Replies: 1
Views: 1021

Search error

I have tried to use the forum search over the past 2 days and keep getting the following error message: --- Server Error in Forum Application An error has occurred while executing SQL query on database. Please contact the forum administrator. Support Error Code:- err_Access_get_search_results_data F...