Australia: Hunter Valley EV festival and competition Nov 20t

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Samd   1.21 GW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Samd » Nov 15 2011 5:53am

Awesome. Love to see some footage....
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 15 2011 6:36am

Hey guys, just found this thread.

I'm actually entered in this event as Grinmore Pedaless. I've done a couple of blog entries on their web site. http://hunterevfestival.com.au/category ... e-pedaless
Mostly highschool teams entered, and they're playing their cards close to their chest - not much blogging apart from mine there.

I'll do a more detailed build log here on ES after the event, only a few days until it's on now so I'm busy track testing and tweaking at the moment.
4008_first_run.jpg
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Some of you may recognise the recumpence drive with Astro 3210.

I'm running it on 8S with some 10C packs I got from Leaders Hobby (cheapest lipo I could find, thanks to gfulton for the tip on that).

If any ESers are there on the Saturday or Sunday, give me a shout!
1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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adrian_sm   10 MW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by adrian_sm » Nov 15 2011 6:54am

Hey great to hear you are having a bash. So I assume you managed to get 8 of the 4s packs from leadershobby, that should squeeze you jsut under the $200 (inc shipping). So that gives you nominally 592wh to play with. If I was you I would try over charging them a tad, to squeeze in a bit more, and then run them into the ground for the race if you have to. :twisted: Any idea what capacity others will have?

Nice to see you putting the recumpence drive to good use. Going to try putting a fairing on, or is that all a bit too fancy.

Good luck,
Adrian

EDIT: PS. Those batteries had a couple of bad reviews on the leadershobby website. So make sure you keep an eye on them, they might be rebranded reject packs.
Build #1 ~28kg ~ 700w Avanti Hardtail Crystalyte 408, 48V10Ah Headway. ~5500 kms to date. (retired)
Build #2 ~30kg ~2000w Giant AC Dually Crystalyte 408, 48V10Ah Headway + 6s10Ah LiPo = 70V. ~15000 kms to date [SOLD]
Build #3 ~13kg ~2000w Commuter Booster <1kg Friction Drive
Build #??? ~21kg ~1500w Adrian's Bafang BPM Hardtail MTB Bafang BPM code12, 15s LiPo, ~40kph, ~30kms

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Grinhill   10 kW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 15 2011 4:23pm

Thanks Adrian, yes you're right with the battery packs I'm using. I guess that a few people will be running 36V 20Ah of lead.

A few of the cells won't charge above 4.1V, and of course they're different ones in each pack. :? If they don't behave any better after 10 cycles, I'll just avoid cell-level paralleling. You get what you pay for as always. :D

I'll set the CA current limit to 25 or 30A, so they won't be working very hard.

A fairing is on the to-do list, subject to time. I have some old corrugated plastic real estate signs ready for the job.
1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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Samd   1.21 GW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Samd » Nov 15 2011 5:00pm

Bonus points for lithium fire. It'll give the Murdoch media something to cover....
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by whatever » Nov 20 2011 9:48pm

quite a successful event, in the ditance competiton the winner went 60km no pedalling, I think they had 36v 18ahr sealed lead acid batteries, some pics vids of event will put up when i have time
a few electric motorbikes were very impressive, including catavolt with crystalyte/enertrac modded twin motor in rear

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Grinhill   10 kW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 21 2011 5:24am

Didn't catch up with you there, whatever.

I really enjoyed the day, it was very well organised. The rain stayed away, but the wind was quite strong and the temp got up to around 30 celcius.

Here's the winning entry in the Schools EV Prize (correct me if I'm wrong somebody!):
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Using a brushed DC motor and lead batteries! :cry:


In the couple of days leading up to the race, there was some discussion about the rule of adding ballast up to a nominal weight of 75kg. In the interests of safety (most of the entrants were highschool kids) this rule was waived for the Schools Prize. The required minimum speed was also reduced to around 28 km/h to make sure all the entrants were in the race. However, since I was carrying the full 75kg, I actually won the Open Division with 42 laps. There was about seven entrants from schools and three in the Open.
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I love the "sprocket" trophy, particularly as both division winners were non-hub systems.
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That was a looong time on the track (around an hour 20min), my body would not have lasted any longer even if my battery did.

As it turned out, the dodgy cells let me down. I ran out of time to run some more cycles on the packs, so I wasn't expecting great things from them. I ended up getting around 13 Ah from the 20 Ah packs. One cell went down to around 2.1V, the other 7 in the string were still hanging in there at around 3.6V. I was only monitoring one string, but I'm sure there was a similar story on the other one. I was secretly hoping for some flames shooting out the plywood side panels, but alas, my speed just dropped away.
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I enjoyed the first few laps, was hitting it pretty hard and averaging around 33km/h, then when I had almost lapped the tail-enders, I dropped back closer to the minimum speed.
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1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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voicecoils   10 MW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by voicecoils » Nov 21 2011 5:56am

Congrats on your win Grinhill!

Was the bike powered by an Astro motor and Castle controller?

Everything's hidden under that nice aero body!

Cheers, Abraham

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by adrian_sm » Nov 21 2011 6:05am

Woo hoo. Well done Grinhill.

Pity the batteries were so dodgy. You would have gone 50% further if they delivered their full capacity.

- Adrian
Build #1 ~28kg ~ 700w Avanti Hardtail Crystalyte 408, 48V10Ah Headway. ~5500 kms to date. (retired)
Build #2 ~30kg ~2000w Giant AC Dually Crystalyte 408, 48V10Ah Headway + 6s10Ah LiPo = 70V. ~15000 kms to date [SOLD]
Build #3 ~13kg ~2000w Commuter Booster <1kg Friction Drive
Build #??? ~21kg ~1500w Adrian's Bafang BPM Hardtail MTB Bafang BPM code12, 15s LiPo, ~40kph, ~30kms

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Grinhill   10 kW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 21 2011 6:46am

Hey thanks guys.

Yes it was an Astro 3210/recumpence drive, running at about 900W max, limited to 30A by Cycle Analyst with RC firmware. It got a bit warm, the uphill section of the track was quite steep.

I used a Castle Phoenix ICE 100 (hence 8S was my voltage limit). I did have an ICE HV160, but I sent it back for the service advisory upgrade a few months back and I'm not sure when I'll see it again. :cry:

Good to meet you on Saturday Abraham, I hope to hear about a Sydney e-vent for next year.
1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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recumpence   100 GW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by recumpence » Nov 21 2011 8:20am

Very good job. Glad to see non-hub systems getting the glory. :D

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by whatever » Nov 21 2011 2:47pm

grinhill
your cell log graph, one bar is missing? is that the flat cell? you did well, there was a film crew there making a documentary, i would think there will be some good footage from them available soon

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 21 2011 3:30pm

Yes thats right - the cell log was beeping and flashing madly for the last 15 min or so, maybe D is for dead!!! :twisted:

That's the first time I've used the cell log, will have to read about it some more.

evmotorcycle.org was busy taking vids all day, I'm sure we'll see some soon.
1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by whatever » Nov 21 2011 9:26pm

I'm wondering if the cell log graph is only showing down to the lvc you've set, if it went to zero volts I think you would have had a fire or at least a very very hot cell

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 23 2011 4:11am

Just found that Jarrod on the Nanovolt had an onboard cam. Here's some of his footage which was posted on the AEVA forum, which gives some good views of my bike for a few laps. He was quicker than me, but only had 8Ah of Headways so they ran out a bit too soon.

1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by whatever » Nov 23 2011 10:24pm

there is also a video from catavolt ( from cardiff nsw)

http://www.youtube.com/watch?v=kf8zuUuq3uY

it shows the lawnmower guy on the track, the lawnmower guy rolled it and hurt his back,
not shown on this vid, I think when the documentary guys finish their dvd there will be lots of good footage


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Samd   1.21 GW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Samd » Nov 24 2011 1:00am

Just looked at the flicker photos.
That 90kph electric ride-on is hilarious!
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 24 2011 4:23am

It's funny, I asked The Lawnmower Man whether he had ever rolled it while I was chatting to him on the Saturday display day before the track day. (He had just been doing some circle work on the council's public park area). :twisted:

Good of him to oblige us with a demo of rolling it, however he forgot to warn anyone so there were no videos of his accident. :cry:

(Hope he didn't injure himself too badly).
1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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Samd   1.21 GW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Samd » Nov 24 2011 7:29pm

Hope he doesnt bugger up their cahnce of getting reinsured next year. Perhaps a clown on two fronts.
http://ballaratebikes.com/

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"Knowledge is knowing that a tomato is a fruit. Wisdom is knowing that a 165mm rear shock can't deliver 220mm of rear swingarm travel." - Oprah Winfrey.

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by voicecoils » Nov 24 2011 10:10pm

Grinhill wrote:Hey thanks guys.

Yes it was an Astro 3210/recumpence drive, running at about 900W max, limited to 30A by Cycle Analyst with RC firmware. It got a bit warm, the uphill section of the track was quite steep.

I used a Castle Phoenix ICE 100 (hence 8S was my voltage limit). I did have an ICE HV160, but I sent it back for the service advisory upgrade a few months back and I'm not sure when I'll see it again. :cry:

Good to meet you on Saturday Abraham, I hope to hear about a Sydney e-vent for next year.
Cool, nice powertrain. It was actually Maurice you would have met, I was stuck in the shop!

Sounds like a fun day, I've seen that crazy mower, no way would I want to ride it :shock:

I'd love to see a Sydney e-vent happen too.

Cheers, Abraham

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by Grinhill » Nov 24 2011 10:25pm

Woops, sorry Abraham. So do you sometimes post as voicecoils as well?

Yes Maurice has an idea about a hillclimb event, he must like making smoke come out of motors. :twisted:
1995 Giant Hybrid - Zeta2 with 12V 7AH SLA - removed after one year.
2006 Converted Giant to Geared Brushless Rear Hub with 24V 17AH SLA - bike stolen 2007.
2008 Hardtail MTB Disc Brake - lightweight RC/LiPo system.
Grinhill's Medium-power RC-Motor Hardtail build
The Grinhill Mk2 RC-motor drive
Grinhill III - "Supercommuter" featuring Recumpence RC drive
Grinhilia - my Aprilia RS125 Conversion

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by whatever » Nov 26 2011 4:59am

to grinhill:
what was your pack voltage and total ahr?

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voicecoils   10 MW

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by voicecoils » Nov 27 2011 2:14am

Grinhill wrote:Woops, sorry Abraham. So do you sometimes post as voicecoils as well?

Yes Maurice has an idea about a hillclimb event, he must like making smoke come out of motors. :twisted:
Yes! I was a voice coil long before I became a glow worm :lol:

Everyone who works at our shop has access to this account with the idea of posting or replying things of interest & relevance to what we do here. To date, I've done most posts but am encouraging the others here to participate!

I have a few personal projects on the boil (extremely slow boil) that I'll hopefully post about in the future on my own account.

Cheers, Abraham

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Re: Australia: Hunter Valley EV festival and competition Nov

Post by evmotorcycle.org » Jan 31 2012 5:30am

Yeah I got some great footage of MR COOL on his lawnmower. Some of it will be featured on the Hunter EV festival video once it is ready for the wild.
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