Search found 3731 matches

by Richo
Thu, 10 Oct 2019, 12:41
Forum: EV Motoring
Topic: The Aptera is back
Replies: 26
Views: 822

Re: The Aptera is back

Here's the original with no solar.
Image
by Richo
Thu, 10 Oct 2019, 12:36
Forum: EV Motoring
Topic: The Aptera is back
Replies: 26
Views: 822

Re: The Aptera is back

here's one now...

Image
by Richo
Thu, 10 Oct 2019, 12:33
Forum: EV Motoring
Topic: The Aptera is back
Replies: 26
Views: 822

The Aptera is back

For those who don't know the Aptera is like a plane without wings. They went under some years ago but now they have been restarted. www.aptera.us The new Aptera ev is now sporting solar so they claim that it can do 60km a day without ever needing a charge. So I hope all those environmental protester...
by Richo
Thu, 03 Oct 2019, 12:46
Forum: Charging Infrastructure
Topic: My first public fast charge
Replies: 12
Views: 779

Re: My first public fast charge

brendon_m wrote:
Wed, 02 Oct 2019, 10:31
it was a photo shop made promotional thing
The giveaway is there are no bollards in front of them.
It'd be the eV charging equivalent of ten pin bowling and guaranteed to get a strike within the first week. :lol:
by Richo
Wed, 02 Oct 2019, 12:55
Forum: General EV Discussion
Topic: To import or to build? New to EV's
Replies: 27
Views: 773

Re: To import or to build? New to EV's

So there is another thread where a QS hub motor was used. http://forums.aeva.asn.au/viewtopic.php?f=18&t=5641#p68955 The 8kW hub motor was used as that what fitted width-ways I Believe. The QS site has 8kW, 10kW, 12kW and 14kW. However the only difference I could see was the kV rating - and you can ...
by Richo
Tue, 01 Oct 2019, 12:53
Forum: Technical and conversion discussion
Topic: Power Steering failure when in use battery drops 13.5 to 8v
Replies: 8
Views: 396

Re: Power Steering failure when in use battery drops 13.5 to 8v

The 12V should be able to cope with the load. The DC/DC should be able cope with the load too. 8V is quite a drop - last legs in fact. Check all your 12V connections are clean and tight. Am I to assume the battery has been in there for a while since I see some posts from a few years back. I'd guess ...
by Richo
Tue, 01 Oct 2019, 12:39
Forum: Technical and conversion discussion
Topic: Power Steering failure when in use battery drops 13.5 to 8v
Replies: 8
Views: 396

Re: Power Steering failure when in use battery drops 13.5 to 8v

Stephan wrote:
Mon, 30 Sep 2019, 22:49
What should I do first?
Post us a photo. :!:

What size cables joint the DC/DC to the 12V battery?
by Richo
Fri, 27 Sep 2019, 12:36
Forum: Electric motors and controllers
Topic: Nidec In wheel Motor
Replies: 3
Views: 358

Re: Nidec In wheel Motor

4 years to go - so I guess they are just at the thinking about it stage...
by Richo
Fri, 27 Sep 2019, 12:35
Forum: Electric motors and controllers
Topic: Nidec In wheel Motor
Replies: 3
Views: 358

Nidec In wheel Motor

Soon (2023) to be released Nidec's in wheel hub motor. 100kW 32kg However is only "compact" enough to fit in 20" rims :lol: It has integrated internal reduction drive. Not too sure if you need to do 200kph to get 100kW as its not specified. https://www.nidec.com/en-Global/product/news/2019/news0305-...
by Richo
Wed, 25 Sep 2019, 12:27
Forum: Renewable Energy and Storage (Non-EV)
Topic: Error 05
Replies: 3
Views: 271

Re: Error 05

Most components wont survive 20A in a shorted state.
I'd go with the relay contacts welded or something outside the inverter (user error).
by Richo
Tue, 24 Sep 2019, 13:01
Forum: For Sale/Wanted
Topic: 20 x Leaf Cells
Replies: 25
Views: 1458

Re: 20 x Leaf Cells

Just as a side note I have been using a Meanwell HLG-320H-42A power supply to charge them in groups of 5. The idea is that when the pack contactors are on the 20S pack is ~152V. But when the car is off and the contactors are de-energised the 20S pack is broken into 4 x 5S packs. So 38V nominal and 4...
by Richo
Tue, 24 Sep 2019, 12:36
Forum: For Sale/Wanted
Topic: 20 x Leaf Cells
Replies: 25
Views: 1458

Re: 20 x Leaf Cells

:lol:

Oh la la
by Richo
Fri, 20 Sep 2019, 12:52
Forum: General EV Discussion
Topic: AC 3 phase motor fee spinning
Replies: 10
Views: 418

Re: AC 3 phase motor fee spinning

Even with 80kph as the nominal voltage 140Vdc that's 18kW nominal and ~55kW peak.
More voltage - more power.

You'll have to check what the upper and lower cut-off limits are in the Wavesculptor.
by Richo
Fri, 20 Sep 2019, 12:32
Forum: Batteries, charging, management and monitoring
Topic: Cooling chargers?
Replies: 10
Views: 357

Re: Cooling chargers?

I assume the fan in your picture is something like the "Fan Blower, Scircoco Ace 76 Series 109BD12HA2(HC2)[HD2" available from Element14? https://au.element14.com/w/c/cooling-thermal-management/fans-blowers/blowers/prl/results?supply-voltage=12v|12vdc&range=inc-in-stock&sort=P_PRICE Yes but any sma...
by Richo
Fri, 20 Sep 2019, 08:50
Forum: For Sale/Wanted
Topic: 20 x Leaf Cells
Replies: 25
Views: 1458

Re: 20 x Leaf Cells

Well if I get stuck I'm coming around for your wire :lol:
by Richo
Thu, 19 Sep 2019, 12:53
Forum: Batteries, charging, management and monitoring
Topic: Cooling chargers?
Replies: 10
Views: 357

Re: Cooling chargers?

Centrifugal fan with a cowling over all the intake vents.

Image
by Richo
Thu, 19 Sep 2019, 12:36
Forum: General EV Discussion
Topic: AC 3 phase motor fee spinning
Replies: 10
Views: 418

Re: AC 3 phase motor fee spinning

So you could go over 4500 rpm with the 200v battery. Not 200V - that was my mistake. The battery voltage should be more like 120-140Vdc for the nominal at ~80kph. It will still do 4500RPM and get to 110kph. The actual max speed of the Kombi with eV system isn't relevant due to the fear factor. :lol:
by Richo
Thu, 19 Sep 2019, 12:27
Forum: For Sale/Wanted
Topic: 20 x Leaf Cells
Replies: 25
Views: 1458

Re: 20 x Leaf Cells

Populating is finished, code is written, bench tests are done. I had been waiting for the power Fuses for the power wiring. The Leafs cell terminals are M6, my test PCB terminals are M6 but the fuses were M5 :roll: Anyway I just need to make one more set of power leads - tomorrow(Friday). Which mean...
by Richo
Wed, 18 Sep 2019, 13:16
Forum: Batteries, charging, management and monitoring
Topic: C-Ion "Battery" Skepticism
Replies: 3
Views: 228

Re: C-Ion "Battery" Skepticism

To be on the game they need to get to 250Wh/kg.
So their 180g "battery" needs 45Wh 162kJ and have a voltage of 14.7V.
:lol:
by Richo
Wed, 18 Sep 2019, 13:07
Forum: Batteries, charging, management and monitoring
Topic: C-Ion "Battery" Skepticism
Replies: 3
Views: 228

Re: C-Ion "Battery" Skepticism

https://cleantechnica.com/2019/02/01/zapgos-carbon-ion-battery-delivers-ultra-fast-charging-zero-degradation/ So what I read here is the improvement to the breakdown voltage of the capacitor. Most supercaps are around 2.7V where as the current C-Ion is 3.4V. If we use 100Wh/kg which is similar to s...
by Richo
Wed, 18 Sep 2019, 12:35
Forum: General EV Discussion
Topic: AC 3 phase motor fee spinning
Replies: 10
Views: 418

Re: AC 3 phase motor fee spinning

Whoops - I see the mistake - sorry
divided by 0.82 not multiply :oops:

Total ratio should be more like 4.80:1
4200 RPM would be 874.5RPM at the wheel.
Which comes out to 106kph.

So even having the nominal at 80kph/3169RPM that's 100Vac/142Vdc

What controller was this going on?
Big Mouses?
by Richo
Tue, 17 Sep 2019, 15:08
Forum: Batteries, charging, management and monitoring
Topic: C-Ion "Battery" Skepticism
Replies: 3
Views: 228

C-Ion "Battery" Skepticism

So there has been a few news reports around about ZapGo's C-Ion "Battery". https://www.businesswire.com/news/home/20190910005668/en/ZapGo%E2%80%99s-Carbon-Ion-Battery-Expected-Charge-Electric-Vehicles https://www.smart-energy.com/industry-sectors/storage/new-battery-technology-to-charge-an-ev-100-ti...
by Richo
Tue, 17 Sep 2019, 14:38
Forum: General EV Discussion
Topic: To import or to build? New to EV's
Replies: 27
Views: 773

Re: To import or to build? New to EV's

4.5kW/9kW seems a bit under powered.
I'd be surprised if you could get to 100kph.
Nice price tho
by Richo
Tue, 17 Sep 2019, 13:10
Forum: General EV Discussion
Topic: To import or to build? New to EV's
Replies: 27
Views: 773

Re: To import or to build? New to EV's

Here's a motor + controller for $3,277.91.

https://www.ebay.com.au/itm/Motenergy-E ... ctupt=true