GCinDC's Giant DH Comp
- Thread starter GCinDC
- Start date
The fingers
10 TW
Great to see the pizazz is back in your commute. 8)
GCinDC
100 MW
thanks. 
reposting to top of thread:
[youtube]ZP3-XoESh5A[/youtube]
vids take so long to process, and i was so interested in cell performance at the end of the charge (in vid above), i forgot i had this footage from friday am!:
[youtube]8GHF3rCBQNA[/youtube]
the earlier vid was good to show the cell variation at the end of capacity. but the motor/controller were so hot i couldn't really hammer the pack, unlike in this one where the pack was full and the motor and controller cold.
other observations/notes:
- at start, no load delta V was 0.11V at rest (4.16V average)
- at 00:20, under 65A (5.6kw) load, delta V hits 0.125V (turnigy 25c cells (17-20) sag to only 4.05V, but zippys sag to ~3.98V avg? [3.93V to 4.1V judging from graph])
- back at rest it returns to 0.010 to 0.020V delta
- 6.5mi commute, used 4.99Ah (see stats at 3:19)
no one noticed variable regen wasn't working? magnet had slipped... i need to fix that up, and make it a lot stronger. woulda been cool to see how negative amps affected cell voltages... (and temps)
and in case it wasn't obvious, i'm trying to abuse the pack. if i switched it to eco, i could ride 25mph for 20-30 miles... but that wouldn't be as exciting.
reposting to top of thread:
[youtube]ZP3-XoESh5A[/youtube]
vids take so long to process, and i was so interested in cell performance at the end of the charge (in vid above), i forgot i had this footage from friday am!:
[youtube]8GHF3rCBQNA[/youtube]
the earlier vid was good to show the cell variation at the end of capacity. but the motor/controller were so hot i couldn't really hammer the pack, unlike in this one where the pack was full and the motor and controller cold.
other observations/notes:
- at start, no load delta V was 0.11V at rest (4.16V average)
- at 00:20, under 65A (5.6kw) load, delta V hits 0.125V (turnigy 25c cells (17-20) sag to only 4.05V, but zippys sag to ~3.98V avg? [3.93V to 4.1V judging from graph])
- back at rest it returns to 0.010 to 0.020V delta
- 6.5mi commute, used 4.99Ah (see stats at 3:19)
no one noticed variable regen wasn't working? magnet had slipped... i need to fix that up, and make it a lot stronger. woulda been cool to see how negative amps affected cell voltages... (and temps)
and in case it wasn't obvious, i'm trying to abuse the pack. if i switched it to eco, i could ride 25mph for 20-30 miles... but that wouldn't be as exciting.
litespeed
100 kW
GCinDC said:
That would actually be pretty amazing on the small pack you run although prolly not fun to watch like my videos.
Tom
Trackman417
10 kW
GCinDC said:
Yessir. I made the switch from zippy's to turnigy's and they do sag a little less under load. I also can tell I am getting a little more mileage out of them per charge to.
Are you also noticing the last 4 cells are barely even moving compared to the rest of the pack
? That is insane lol. I can't believe how solid they keep their voltages under load and regen.
GCinDC
100 MW
i only had patience to ride 1.7 miles on eco, but as you can see, averaged 14 mph. pedaled along peacefully. got up to 29mph, etc:GCinDC said:
and the system estimated i could go another 40 miles at that rate:
i guess that the REM(aining) on the screen above.
had three servings of ice cream, and it was coming out my pores on monday am so i pedaled the road bike yesterday.
i also got a youtube comment yesterday (on an ancient vid): "I like ebikes, but you're an ass for running red lights and for being careless. The rules of the road apply to bikes and you just as they do to cars. It's the likes of you that will ruin ebiking for the rest of us."
i can ride like an ass sometimes. for sure. OR, i can understand how the cars i weave in front of will think i'm an ass.. but is that really ahole behavior? riding fast past pedestrians is definitely ahole behavior. impeding someone else's progress, or taking something away from someone ain't cool. the way cars often treat cyclists isn't cool.
i think of my commute more of a game. at any moment, i have a variety of choices, each with different constraints and possible opportunities... i never want to hurt, obstruct or even mildly inconvenience anyone... so, i'm just working thru my feelings about the comment... :|
and what am i ruining, by the way?
Hy GC. Well I'm fan of your movies. But red light is a point. And this voices about ruining something... Well, I think that we have now situation: Most people riding half legally and pushing rules. Up to now in my country/city for example I steal could be invisible on my 3kw 35mph ebicycle. The same situation is in your country. But, as I think few hard road accidents, some spectacular crash, and we will be have possibility of special attention for ebikes from policeman side... Of course each of us pushing rules on own risk. And each of us has different border. For many peaople this border is a red light. If some one crossing on red its him risk. But eventually accident (or series of accidents with half-legally stuff) in this situations could be a start point to troubles for all ebikes community.
. Well I'm fan of your movies. But red light is a point. And this voices about ruining something... Well, I think that we have now situation: Most people riding half legally and pushing rules. Up to now in my country/city for example I steal could be invisible on my 3kw 35mph ebicycle. The same situation is in your country. But, as I think few hard road accidents, some spectacular crash, and we will be have possibility of special attention for ebikes from policeman side... Of course each of us pushing rules on own risk. And each of us has different border. For many peaople this border is a red light. If some one crossing on red its him risk. But eventually accident (or series of accidents with half-legally stuff) in this situations could be a start point to troubles for all ebikes community.
GCinDC
100 MW
i suspect this is a local thing. i ran an errand in VA yesterday on my pedal bike, stopped at a red light, along w/ peds, and then ran it. peops looked at me like i was mad.toft said:
in downtown dc, everyone marches across the street at a red light as soon as it is safe. women on bikes. old ladies. even if a cop is the first one stopped at a red light, cyclists and peds don't think twice about crossing the street when it's clear (and still red).
in other towns, this may be inappropriate.
anyway, can i not ride my ebike like others ride their bicycles? i confess, i have gone through some lights faster than others, but only when noting it's safe, and i've seen cyclists going similiar speeds thru those lights.
would feel funny however being locked up in a jail cell tho for going twice the speed limit downtown, which i now can do...
but the speed thing is a somewhat different issue, nevertheless one to think about... 
You're not ruining anything! I have had a couple of similar comments, but my observation in DC is that non motorized bikes run red lights and are ridden in more dangerous manner than ebikes. Of course, there are only a few of us!
Ykick
1 GW
Power mongers are always gonna try to "blame" someone for their power grab and subsequent regulations. Wouldn't matter if you ride like a saint those people will find something to use against us. Conveniently ignoring that we're risking life and limb so ONE LESS CAR doesn't need to clog the roads.
NYC red lights appear very similar to DC. Here, cops even wave you through red lights as long as it's SAFE to go. When it's completely clear why wait for a building, crane, car from ramp above or something to fall on you? People in much less crowded NA metro areas will never quite understand....
NYC red lights appear very similar to DC. Here, cops even wave you through red lights as long as it's SAFE to go. When it's completely clear why wait for a building, crane, car from ramp above or something to fall on you? People in much less crowded NA metro areas will never quite understand....
Well maybe it is something that crossing road on red by pedestrians or bicycles its a local habit. In fact, I observed in my country that lycraman almost crossing on red. Typical bicyclist rather not. BUt in my city on nearly all intersections of roads if their are lights, their are cameras too. All city is monitoring. In other city nearby my on each crossroads is special camera with make you a photo when you try to drive on red (typicali is for these cars with going to crossroad on "late orange") Regards, Mike
Regards, Mike
speedmd
10 MW
beast775
100 kW
Very cool vids,i thought there would be alot more drainage during the 3rd vid? i gotta really sit down and watch these again.thanks.
sacko
10 kW
If you run red lights, expect to be criticized by the public.
I personally think if it's clear, i'm going through it.
Over here, the general public do stick to the highway code and do stop at red lights. You will get fined if you are caught running a red light.
Love the vids, and the controller setup... I neeeeed one for the Cromotor!
I personally think if it's clear, i'm going through it.
Over here, the general public do stick to the highway code and do stop at red lights. You will get fined if you are caught running a red light.
Love the vids, and the controller setup... I neeeeed one for the Cromotor!
GCinDC
100 MW
[youtube]5wmeov6GuxM[/youtube]
Tinto
100 W
SLICED!
GCinDC
100 MW
[youtube]_lk_rsDBe9w[/youtube]
pucksterpete
1 kW
Nice, b u t, anyone pulls out from the sidewalk area, your history....
GCinDC
100 MW
i always come home via the alley, and found a nice sign left by my son this afternoon:
Tinto
100 W
Nice.
Happy birthday!
Nothing says love like Lego.
Happy birthday!
Nothing says love like Lego.
GCinDC
100 MW
thanks!
[youtube]n2b0LCEAdos[/youtube]
[youtube]n2b0LCEAdos[/youtube]
Wow. Just spent 10 hours reading this thread.
I'm speachless. Sorry about the fire, congrats on the way you recovered from it!
Like many other people, I'm really crazy about this controller, and have some questions:
Would it be ok to run 24S lipo on this? would be 100.8V HOC.
I'm not sure how the charging works: does the voltage of the psu matter (not higher than batts ofcourse), and how many amps can you push through it for fastest recharge time?
Is the regen braking good enough to go brakeless on the back?
In your thread, I saw a cromotor pop up, but it never got installed. Would this controller be a good match for that particular motor?
I would like a offroad monster, so more efficient and less heat sounded great, but that last senetnce is a deal breaker for me.
I'm hoping it was settings?
I'm speachless. Sorry about the fire, congrats on the way you recovered from it!
Like many other people, I'm really crazy about this controller, and have some questions:
Would it be ok to run 24S lipo on this? would be 100.8V HOC.
I'm not sure how the charging works: does the voltage of the psu matter (not higher than batts ofcourse), and how many amps can you push through it for fastest recharge time?
Is the regen braking good enough to go brakeless on the back?
In your thread, I saw a cromotor pop up, but it never got installed. Would this controller be a good match for that particular motor?
I would like a offroad monster, so more efficient and less heat sounded great, but that last senetnce is a deal breaker for me.
I'm hoping it was settings?
GCinDC
100 MW
hey dude. thanks for reading.
nope. the mini-e supports max 20s, 3.5kw continuous i think, with 5.8kw peaks. the maxE however can handle well over 100V. 150v?wannesd said:
charging is same for any lipo pack, except there is a separate ground wire for charging (optionally - i didn't use it at first), and it balances when you use the optional bms.wannesd said:
not sure. certainly not the way i've been using it. i need to fix that up.wannesd said:
yeah, i bought one and sold it cause i couldn't mount it. would probably be perfect match for maxE, but don't see why it wouldn't run well @ 3kw..wannesd said:
my motor is my weak link now. going off road cooks it in minutes. a bigger motor wouldn't get as hot, but if torque is what you want for off road, i think middrive is a better plan.
GCinDC
100 MW
i think only trackman watches these anymore, but here's another.
[youtube]9v1Blj_ulSA[/youtube]
fixed up the regen brake sensor again, and saw -9A when tested at 25mph. if you no longer see the magnet on my front tire, it's cause it's on my brake lever low.
this was the best i could do to configure the lever/regen range. now i need to see if i can increase it via programming, not that the zippies will appreciate it..
[youtube]9v1Blj_ulSA[/youtube]
fixed up the regen brake sensor again, and saw -9A when tested at 25mph. if you no longer see the magnet on my front tire, it's cause it's on my brake lever low.
this was the best i could do to configure the lever/regen range. now i need to see if i can increase it via programming, not that the zippies will appreciate it..
sacko
10 kW
Nope, i've s subscribed to this thread; read/watch every update.
One of my favourite threads.
One of my favourite threads.
