AM dual motor = bafang middrive + rear hub motor

[pendragon8000]

did you plug brake into ca or controller? should be controller
when ebikes attak
i drop mine into my head at the skate park when i bent over i pulled throttle.. agh!

 

[John Bozi]

http://www.ebikes.ca/shop/ebike-parts/throttles/t-htwist-b.html

thats the throttle with the green button which Justin answered that the green button would be plug and play as regen.

The green button worked as regen without cav3 but with cav3 in pass thru mode now it does nt work.

the green button makes the

L

in the bottom left corner slant inwards weirdly, so it is being read. NOt sure what its doing though.

Did you stack it again or u telling me about the last time you stacked it?

 

[pendragon8000]

http://www.ebikes.ca/shop/ebike-parts/throttles/t-htwist-b.html

thats the throttle with the green button which Justin answered that the green button would be plug and play as regen.

The green button worked as regen without cav3 but with cav3 in pass thru mode now it does nt work.

the green button makes the

L

in the bottom left corner slant inwards weirdly, so it is being read. NOt sure what its doing though.

Did you stack it again or u telling me about the last time you stacked it?

no stack frocker haha! just an awkard moment that luckily no one saw .
anyway how are you hooking it up? is the regon switch going to the controller or th ca?

 

[John Bozi]

through ca

 

[pendragon8000]

I'm pretty sure you need to put regen onto the controller. Just watch out the axle nuts don't get loose from it.

 

[John Bozi]

so I was told this throttle was plug and play with this controller.

Justin = correct

I didnt mention Id use v3

John + pissed off

so the throttle and green button doesnt work in via controller or ca if I want to use the ca also.

simple work around

ebikes.ca = pay more money for a dongly thing at front or cut cable cover to split wiring.

John = try to cut it without cutting the wires.

 

[pendragon8000]

so I was told this throttle was plug and play with this controller.

Justin = correct

I didnt mention Id use v3

John + pissed off

so the throttle and green button doesnt work in via controller or ca if I want to use the ca also.

simple work around

ebikes.ca = pay more money for a dongly thing at front or cut cable cover to split wiring.

John = try to cut it without cutting the wires.

is it like 2 plugs together? sounds odd. i would probably cut wires and go down to controller.
can you extend the controller plug to the ebrake plug? i think a video is due

 

[John Bozi]

You can see in the picture above that I posted of the throttle that I need to cut the sheath (black insulating protecting material) right down the centre. Hopefully it peals back easily.

ebikes.ca have been so great with their responses to a demanding customer.
My first experience riding was not a grin, I was actually kind of freaked out by how when I let go of the throttle it would power forward for another second.
Justin said "increase the down ramp rate to something really high like 20 V/sec" will do that for the next ride.
Will upload a vid of how the bike looks in the next few hours. no riding video for now.

Went into supercheap too and bought some tough looking cloth tape, huge zip ties and spiral stuff for wiring. I got tons of goodies to play with

the tape is really tempting to make my own really simple top tube saddle bag....

Things to note. I was flying over 65kmh today so no chance to exercise. I can see I could extend my distances greatly with the extra battery but the temptation to rip it is huge, so not really much more distance. Oh for the wheelie thing yeah I was expecting them so was careful, but quickly discovered the ramping of the throttle was super smooth on the way up - I love it, so it feels like theres less torque. Yes the amps are exactly 40.5, so bit less with this controller...

Overall most of hooting was around 2666 whats for some reason. higher at first but that number sticks in my head

Also it is the first time just on road riding has sent me over the 90 degree mode with lipo. Also the first time I've gone around a corner that I always go around fast and thought I really felt centripetal force.

Lots to say, time to have a beer.

[youtube]TY6lnvDfZc4[/youtube]

 

[pendragon8000]

You can see in the picture above that I posted of the throttle that I need to cut the sheath (black insulating protecting material) right down the centre. Hopefully it peals back easily.

ebikes.ca have been so great with their responses to a demanding customer.
My first experience riding was not a grin, I was actually kind of freaked out by how when I let go of the throttle it would power forward for another second.
Justin said "increase the down ramp rate to something really high like 20 V/sec" will do that for the next ride.
Will upload a vid of how the bike looks in the next few hours. no riding video for now.

Went into supercheap too and bought some tough looking cloth tape, huge zip ties and spiral stuff for wiring. I got tons of goodies to play with

the tape is really tempting to make my own really simple top tube saddle bag....

Things to note. I was flying over 65kmh today so no chance to exercise. I can see I could extend my distances greatly with the extra battery but the temptation to rip it is huge, so not really much more distance. Oh for the wheelie thing yeah I was expecting them so was careful, but quickly discovered the ramping of the throttle was super smooth on the way up - I love it, so it feels like theres less torque. Yes the amps are exactly 40.5, so bit less with this controller...

Overall most of hooting was around 2666 whats for some reason. higher at first but that number sticks in my head

Also it is the first time just on road riding has sent me over the 90 degree mode with lipo. Also the first time I've gone around a corner that I always go around fast and thought I really felt centripetal force.

Lots to say, time to have a beer.

thats cool man, yeah i well set up ca is very good. i not well setup one is shit. take an hour to tweak it some time this weekend. it might not take an hour but, you know just ride for a bit and change one thing ride a bit change it more or other way. then change other things the same way one at a time. check power ramp settings , throttle ramp setting and throttle out range. should be about 1.4v-3.5v
here is a easy to follow guide.
http://www.ebikes.ca/product-info/grin-products/cycle-analyst-3.html

SETUP POWER LIMS

Preview Line shows the amps limit and watts limit of the selected preset.
a. Max Current: Set the CA’s current limit. This value may be further scaled down by the throttle, and/or the Aux Voltage, and/or the temperature limit.
b. A Gain: Feedback gain for the current control loop. Generally it should be increased until you start to feel the current limit being rough or oscillating, and then scaled back about 30%.
c. Max Power: This sets a power limit in watts. It has very similar effect as a current limit, except that it is independent of the battery voltage.
d. W Gain: Same story as A Gain above, only now applied to the power limiting feedback loop.

 

[John Bozi]

Have decided once and for all that I won't fit more than 1 battery safely in the triangle. Even though I knew it wouldn't worked this week I padded up batteries yesterday and tried to fit them in. And then again I super concentrated on the best method with all calculations and minimal padding, just neoprene and minimal pvc.

Yes 3 in a pyramid shape will fit, until you sit on the bike, and the suspension kicks forward. Let alone off road riding at full compression, a bloody valve would start a fire.

It's depressing how much neoprene, cloth tape, sponge I've wasted.

That was my last ever attempt to put that much effort into fitting them there.

So what this means is that the triangle free to have the controller again. Next free time will be to position it there just off the fully compressed shock with wires facing downwards.

A lot of cutting and soldering ahead to get my final bike ready. I look forward to getting into a clean looking build now that I'm 5000000000% sure batteries in triangle won't work on this bike.

 

[pendragon8000]

Did you look into the high power ebrake.
I think your bike looks good with the batteries like that.

 

[Kurt]

I was taking a break from the sphere this past year or so. Though I drop in now and then to see whats going on.

It was nice to see another person from The Gap having some fun with E bikes. I often forget just how many local fire trails, parks and paths are on our doorstep. At the moment other than my E recumbent trike and my wife's dual suspension E folding bike my ebike stable is a little thin at The Gap. So not the best bike's for joining in on the real rough trail rides. (Though happy to try a street ride with some one local)

That said I have in the post a new HKS dual suspension bike from NZ ordered last week. I told myself it was going to be human power only but not sure how long that idea will last . I have a few geared hubs and lipo laying around from old projects just collecting dust. It's tempting After watching your local trail vids to put them to use on the new bike.

When I started out years ago for me it was all about huge heavy DD hub motors and shooting for max speed. After going through a lot of ebike configurations . Personally settled on building bikes for 45kph or so top speed but building them to be torque monster is the most fun. Especially this side of Brisbane with all the hills and steep trails in The Gap.

Kurt

 

[John Bozi]

Thanks Kurt, was a great day of chatting, chat so much I got so drunk I touch the red and black wires on a battery together AGAIN!

After you left I got a little but done but I reckon the worst soldering ever. If phase or halls play up I blame the beer.

Anyhow, first ride on a trike.

Things noticed in order.

1. Wow the view. Felt like going from 2d to 3d. Or atleast wide view...

2. I can relax at the lights like I am the beach.

3. turning sharp is out the window.

4. How dare you bring your bike over with no batteries! (should be one but I knew it before I sat down)

Look forward to ride soon, when you get your lipos, and I'll get the gopro on.

 

[Merlin]

flipflops and socks.....you know what your doing

 

[John Bozi]

flipflops and socks.....you know what your doing

socks and sandals is German isn't it?

I did have my downhill shoes on until I had to go back in the house - came out with thongs
Anyway he uses cleats and taller so It was going to be tough to ride it correctly.

 

[Kurt]

Yes I read in the paper that Brisbane city council have canceled the long standing contract with pyrotechnics company "Skylighter Fireworks " this new years eve.

Apparently this year they have contracted John for the job. He will be out on a river barge with a carton of beer and a lipo pack with exposed terminals

Was good to have a chat with another ebiker. Will dust off the lipo and get it on the bike. I have a feeling John is going to like the torque of a geared hub and not worry about putting kids BMX wheels on the back of his bike to gain torque .

Kurt

 

[John Bozi]

:lol:

Nice one mate. Had a good chuckle, blister doesn't hurt. But as you know as soon as it happened I was more concerned with having to put new plugs on the lipo than my hand. I looked closer at them and they look like they caught warts.

It's not going to suit anyone other than a 1p user, or a person who charges and then rides and then charges with almost no stopping in between, but I have found my simple solution to warming batteries.

Today I finished repositioning controller. (lots more wiring to do to make the whole bike without excess wires, but have finished the controller to motor part.

I spiral wrapped the rest, trialled a few unsuccessful battery angle changes and went back to same way I had everything running for 18s. Been 4 days I think since a ride!

So

50 degrees thrash temperature to start limiting down from 40amps max. I've 60km limit, about 2800w (then), I had a huge ride. Was very happy going for a 20 minute ride hitting my 60 in a 50 zone etc. Tested how all the limiting felt, was only a tiny bit jerky. Speed limiting is the jerkiest. checked temperature of batteries and only slightly warm. Finished on about 3.7v about 3.5Ah used. Happy as.

I liked knowing I could still hit 60 even down much less amps. No reason to go faster as things start going weird at about 65km imo (bumps surprise, corners sweep...)

so will keep limiting down until I fine tune the ride.

Next ride will be:

2500w limited (motor is rated at that = so see if I get to spend more time at that speed)
40amps start - thrash at 40 degrees (will kick in real fast)

I really liked it because I still could hit big speeds and had a chance to pedal. All out power theres no chance!

AWESOME

 

[John Bozi]

Been playing with other battery positions. I know I can fit 6: 2 in triangle,2 in saddle bag style either side of top tube near steerer and 2 between legs infront of the seat. But the bike starts looking ugly and messy.

As a 1p set up, I will stay with 2 in triangle and 1 in front of seat, as it doesn't touch legs at all and the balance feels much better and the I can see more of the road and it's more aerodynamic.

The more I build and understand the limitations of batteries etc. the more I know how to build a better bike in future. I am starting to think that the 4065 was overkill. I wish I bought a 12t mac and just a 20amp controller to match my love for the 1p. At 1p the it feels like a bicycle and I can peddle to extend the range easily. At 6 batteries the handling, look and over the top speed... eek.

Anyway still wondering about aluminium boxes... wish I had a bender and mig welder

 

[John Bozi]

decided to give 3 bricks in back pack a try last night.

They fit the bag perfectly, weight was totally acceptable, all wiring is hidden apart from a chord from end of zipper to toptube between legs. Bike is clean, sight aerodynamics perfect, feeling of the road 100%. BUt I wonder if that's actually that good? The weight on the bike seemed to dampen the vibrations coming from the bike...

Other things I liked, I could easily reach behind touch batteries to check heat. I gunned it pretty hard on the 1p and they got warm again. Only mildly warm but noticable enough. I will limit motor heating from 30 degrees and out at 100 degrees next ride. (was 40-130 last night and before with headways 90-130).

quite extreme limiting but for now until I can get 2p it's a pretty good solution for a guy hooning around the boonies. fanging

have removed speed limiting - I want to know what this girl can do on straight flats. Even at the end of the ride down to 3.8-3.6v with severe limiting on I hit 60 along the main road...

 

[Kurt]

When you ran 6 batteries were you running them as 18s / 2p ?

"Over the top speed " Is this on 18s ?

What speed do you you get on 12s?

Just a thought 2p / 12s could be a compromise if the speed is acceptable.

A DD hub is always hard to pedal against. That motor cogging is like riding a bike through sand or with the brake dragging.

Kurt

 

[John Bozi]

12s speed is about 50 on the top charge, half way through the ride 12s is too slow especially at any hills.

I still havent tried 2p but know in the configuration I outlined above they would fit, but they would be ugly...

the neatest would be 3 either side of the toptube near the handlebars. But that would really take away from the sight of the road and put a lot of high weight. I still think that 3 boxes would be best, so that each 2 batteries are paralleled in each box.

4 as a saddle (2L 2R) and 2 in triangle.

ps was a great ride yesterday. Not a second did it look like rain, weather reporters really got it wrong. The trike electrified was awesome!

 

[John Bozi]

Flew up for a 30 minute ride. bit of firetrail and single track downhill, and then mountain road back with sever limiting in place. got back on 3.7v but they were still warm!

I don't know if it's the regen? the steepest downhill road part back I spotted 600 something watts. Divided by 18 cells thats 33 watts per cell. How do I break that down further? Most lipos are about 2c I think... 5.8ah 25-35discharde?

Anyhow final thoughts are single tracking is boring because its all bloody hills. Its much more fun on flat sections but that has all gone to suburban houses...

 

[pendragon8000]

i find the cross country stuff fun because i can go fast and that makes it more exciting. cornering on loose surface is a good challenge to.

33 watts per cel would be roughly 10 amps so thats a 2c charge rate on a 5ah cell

 

[Kurt]

It was a nice quick ride around the local area with Lots of variety. Your new bike has some top end and climbs ok for a DD when you keep the speed up and a quiet motor. Was good to blow the spider webs out of the 80/100 outrunner motor. The BMX track with the jumps was fun. shame it sounds like a F1 car :lol: I have the geared hub installed and sorted out on the trike now so next ride you can have another ride and compare the difference at the same 15s.

I agree your bike as it stands now is more fun on the road, bike paths, flattish fire trails and the like. Than single track or downhill.

I think the heat you're seeing is to be expected from 1p, it didn't seem excessive last friday but I'm sure in the hills its working the packs hard and some high regen won't help. 2p is the answer. The bike will have more balls , less sag, and healthier cooler packs not to mention double the range. (longer adventures)

Kurt

 

[John Bozi]

Went for a late night spin after using a docking station for the first time. Thought I'd just try to see how everything reaches to save time in future although I worry leaving stuff out.

Dunno if it's just me but as soon as the weather cools I get sinus problems, never got them in my life until I started electric biking. I suspect this would be the same with motor biking but I don't do the petrol. It's just the quick speed of stuff flying up the nose and colder temperatures. On the topic I started researching downhill goggles but fogging seems a pain in the ass. I just hate flying through creek areas in particular but anywhere fast speed with bugs or whatever slapping my lids.

Kurt the bmx jumps track you took just earnt me so much respect for trikes and your ability. I was expecting flat road stuff... You were hooning up stuff as I would, but on the day you pushed it harder, I was more in the background just wanting to watch what you could do.

Pendragon single track cornering with extra weight poorly distributed sucks ass. Not sure why but I grew up with a bmx mongoose chromoly with rear peddle brake that made me comfortable with skidding rears and I hate handbrakes ever since I was kid. I hated mountain bikes and still kind of do. I reckon Id be at home on a shorter bike and counter to all the big wagon wheel hype that goes on around, a lower bike might get me back in the zone.

Seriously if you tried the mountains that around my place, you would see that it's all about braking, there is rarely any of the fun part which is flatter. Hard to explain but I've seen the terrain you ride in your vids, and it isn't a mountain range.

I love the off road riding but just over blowing the whole battery pack on shifting a couple of ks. One day you've got to prove on a video how you do it or just come up to my place for a holiday and fry up your bike...