The SB Cruiser : Amberwolf's 2WD Heavy Cargo Trike & Dog Carrier

sorry no pics yet, but earlier today i ran across the headlight units with the led accent strips built in that i'd been looking for for a while now. they came from goodwill for a few bucks each, originally. I kne w they used bulbls similar to what I found at goodwill on a separate trip, but unfortuantelyt hay are nto the same exactly, so i will need to modify them to get thse bulbs to fit.

also these things have smoked (darkened) lenses, which will waste soem of the light from them. I don't know if it's a coating or teh actual plastic is modled in darker stuff. i hope it's a coating cuz I could sand that off and repolish teh face, but it's probably not.

anyway, i have a pair of them, right and left, with teh aiming screws, and if i can make them fit the bulbs i have, i can put them both on the trike in place of the other car headlight holder, and have a pair of brigth aimable headlights, which also have bright nad dim beams. plus the led accent strip, which since they are separately powerd can also be turn signals. not bvery bright but still there, at worst a backup for the mains if something fails or whatever.
 
Oh, also, on the grocery trip yesterday, the dropouts on teh x5304 did their job perfectly.

I didn't use the EABS braeks (regen/sort of) much, because with both motors on there, it's a pretty severe braking (as if you slam on all yoru brakes at once almost to skid point) with no control over level, so I pretty much just use them for final stopping (cuz they work to zero speed unlike normal regen), and if there are emergency stops they shoudl do a lot to help stop me.

If I could find a way to adjust their strength on the fly, then I could use them for normal braking, but there is no way I'm aware of.


I am definitely going to need to make similar dropouts for the 9C as well, but it isn't as torquey by far as teh x5304, so I'm not expecting to have teh same kind of dramatic failure on the 9C side that I did on the x5304 side. :oops:
 
In one of my bike parts boxes, I found some Promax calipers with what seem to be completley unworn pads, not sure if I took them off that fork or if they came from something else. Still havent' found the 29er fork. :/ Can't imagine where ti's gotten to. :?


Swapped it in in place of teh YUS calipers, and absolutely no difference. Made sure it's lined up and evened out on both sides, etc.

Still no braking power, even if I grab the handle with both hands and squeeze till I think my hands are going to break, and i can feel veins standing out on my head.

It's definitely rubbing on the disc, as it's making it shiny for a significant part of teh rotor surface area, it's just not got any stoppi8ng power.

I even tried with teh rotor flipped, no change.

I think it may be the rotor itself that's just junk, made for show and not to actually do braking. :roll:


So...no disc brakes on this thing yet. Rim brake works well enough, at lower speeds (locks up and skids when pulled hard at enough speed or right road conditions) but once I have enough weight on the front so it doesn't lockup and skid it'll need more braking power up there again.

Still need to build the rim brakes in back; keep procrastinating on that.

If I really need to stop fast I do have the EABS motor braking, but it's not much good for gentle braking.
 
HI AMBER. don't throw that wrench that you use for a tork arm, it might be put in a musium someday. keep up the good work friend. :wink: :wink:
 
Haha....I can't imagine anyone would ever want to enshrine anything I've made, except maybe as an example of how *not* to do things. :lol:

It's fun, but I dunno about history-making. :)



Last night's recharge with the Satiator went just fine. Took about 50 minutes to recharge 4.8Ah on teh traction pack, and about 30 minutes to recharge 2Ah on the lighting pack, IIRC.

Tonight's recharge took about 43 minutes to recharge 3.9Ah. Lighting pack is still charging.

Difference in traction pack Ah usage is probably because I'd tested the brakes yesterday before work (or the day before that, can't remember) and hadn't recharged.



Have had no problems with the spokes, wheels, etc on teh rear motor wheel builds. The only thing I am having any issues with potentially is the dropouts/etc on the 9C wheel, whcih once i replace them with the same setup as on the x5304, I shoudl be able to hammer them as hard as I like with the EABS and only worry about twisting the axles off. ;)


I do need to go thru and retension/retrue the wheels since I've ridden them fairly hard for a bit now after building them, and hope to do that day after tomorrow before work, as it's a short day.


Dunno when I'll get to the other stuff, like rebundling up all the dangly wires and such. :)
 
Lighting pack recharge last night took about an hour, for 1Ah. Not sure why it would, as its' also set to the max charge current, and the other night took less time to charge more Ah?

If I can I'll watch teh charge tonight and see why it's different. (I already verified the cells are all balanced right now, at full charge 4.1V each)
 
Today was an hour and 7 minutes for 1.34Ah on the lighting pack, done first just to see what difference it might make.

Traction pack still charging.
 
About 45 minutes for 3.5Ah on the traction pack.

The whole x5304 wheel seems to still be just about like when I built it. Will wait before doing anything to it.

The 9C wheel I can hear differences in tension, primarily between the set of spokes that has heads-in vs the set that's heads-out on teh flanges. But it still sounds good, so I'm leaving it, too.

I'm surprised there hasn't been any problems yet, given teh side loading/etc. On the x5304 wheel it has the better/wider doublewall ex-zero rim, so I can see how it's not having issues yet. But the 9C wheel has a singlewall rim that's significantly narrower than the other one, and probably more cheaply-made, too, originally coming off a jogging stroller not meant for these kinds of loads, so I expected it to have problems by now.


Still, once I can I'd like to replace that rim with another ex-zero rim.



I've also been thinking about how to make the wider version of this one, and I might be able to do it using this trike itself, rather than starting from scratch...but I'll need to work it all out first before I start, so it's not down very long.

Mostly I've been considering widening this one rather than building a new one because I'm finding myself not bringing it in the house much, as the axle ends keep hitting the doorframe, and it's pretty hard to get it in or out without doing that.


I guess the only way to prevent it is to cut the axle ends down so they dont' stick out past the frame...whcih means also removing any possibility of ever using axle nuts on those ends. I hate eliminating possibilities in ways I can't put them back...but sometiems I have to.


I expect that since it's still only in the mid-90sF right now, parking outside is still an option. But at some point I'll need to be parking it inside just so it's not so hot when I get on it to ride, or if I have to take the dogs somewhere, the kennel won't be hot already.

So the most likely scenario is still fixing the axle ends shorter and smoother, extending the fenders down to cover the stubs/dropouts, and building a whole separate trike for the double-wide version.

Of course, then I need motors, wheels, etc for *that* one.....
 
Concerning things like cutting off axle ends and then later finding things are way suboptimal afterwards, ain't it the truth.
 
Yeah.

Was gonna work on teh trike today (had just grabbed the Grin FOC controller and was about to plug it into power on the trike) but the asshats down the street started having a super-loud party again. It's not music at these volumes, it is a physical assault.

All I can do is stay in the bedroom in the house where it is only dull thumps of someone kicking the walls and floor and bed and doors, and wait till probably dawn for them to stop, hopefully.

If I knew where the local transformer was for our area, I'd be considering a power outage. I'd rather die of heatstroke with no A/C than live thru this crap.


Considering the entire neighborhood for blocks around called the police constantly for several hours with no response last week about this stuff, I don't expect it to be any better this week.

Can't just go tell the asshats to turn it down, cuz they just get highly aggressive and tell you to frock off and die. Try again and they'd probably shoot you.


So it's unlikely I'll get to do any work on anything this week, as this was supposed to be my day off.


At least I got to go to the store for groceries, and water the stuff in teh yards. But the other yard work of mowing and trimming I still needed to do later in the evening (got too hot to do after about 1030am) won't be possible with their crap going on.


Even the dogs are too frightened to go outside--Yogi won't even go out to chase the roaring-engine car noises of people speeding thru the area like he usually does. None of the area dogs are barking either; they're probably all overwhelmed and hiding.
 
Surprisingly, after more than an hour after it started, they were visited by two police SUVs, and it stopped for a few minutes, at most. Maybe two.

Of course, unsurprisingly, as soon as those left they started it right back up again exactly like before, cuz they obviously don't give a frock about anyone else in the universe except themselves, just like most people these days.
 
So...after speaking with the dispatcher, who said the officers left without doing anything because "it wasn't loud enough" :shock: she suggested I speak to an officer who would come out when available.

While waiting, to prevent having to deal with the dogs barking at the possible (cuz they may never show up, like usual) knock on the door, I went out front (opposite side of the house from teh assault) and used teh loudest machine I have, my electric hedge trimmer, to work on shaping some of the lantana and trees and stuff out there. I had expected it would cover up the assault, cuz it's pretty freakin' loud, but to my surprise it did not, even though it is many many times closer to my ears than the house down the street that is the source of the sonic assault.

It was not nearly as loud out front as it is in the back or east side, given that those face the assault; but loud enough that I wouldn't have been able to sit out there in it on it's own, especially with the extreme headache (almost migraine) that was starting by then (and hasnt' gone away yet).

I forget how long I was out there waiting, but about 10 minutes before the officer arrived it got quiet enough to not hear over the trimmer, and I turend off the trimmer to see if they'd stopped--they hadn't but now it was at a reasonable level that I could live with at my distance from them, and probably coudln't have heard inside the house anymore (didnt' check). But since I figured it was just a quiet song rather than a general cutback of the noise, I continued what I was doing and waited for the officer.

About 5 minutes later, I slipped and caught the power cord in the trimmer, cutting into it and tripping the breaker on the outlet. :/ So i went in to get repair tools and unplug the cord to splice it. I was about halfway thru the repair when the officer arrived.

We discussed the issue, not just the present one but this type of thing in general, and basically it comes down to there being nothing they can do about it. He was nice about it, and even said that these people had given a shutdown time of 1500, and he said that if it was still going on by 1530 and was loud enough to be heard over my trimmer, to go ahead and call it in. But he made it pretty clear that unless it seems loud to the officers, nothing will happen.

I expect that based on past results, this means that no officer is going to do anything about it, ever, unless it's so loud that it's causing physical damage to their vehicle. :roll:

He gave me the number of the local precinct's community action officer, to see if there is anything else that might be done, given that I and others are afraid to approach people with these parties and loud cars for fear of violence, but the officer isn't going to be there till tomorrow, though there is someone to take a message. :/

I'll call, but I expect it'll be more of the usual, that everyone around me will get away with whatever they like and be rewarded for it, while I will continue to be punished for simply existing and following the rules. (and if i break them i'll be punished, too, probably worse, so there isn't anything I can do)


Some time after 1500, it did finally stop, but the day is already wrecked, and my head is still killing me; and I'm overheated too, and I'm sure someone else will start a super loud assault party later on, whcih also will be allowed or even encouraged to happen, so I still doubt I'll get anything done.


There are times when it is so depressing, I wouldn't bother sticking around if it weren't for the dogs. :(
 
Ok, headache is gone, nobody else has started a sonic assault yet, so I shrunk the whiny posts above to smallest font it'd let me. Just quote them to read them if you really want to. :/



I didn't get the other stuff done I wanted to today, but I did a deep discharge test on my EIG NMC 4s1p 20Ah lighting pack (the original I've been using on CB2 for years now, presently swapping between trike and bike as needed, though I built a second pack it's not "proven" yet).

According to the Turnigy Watt Meter, total discharge was 18.3Ah, down to 12.4V (3.1V/cell) under load, 12.9V once switched to no load. Load was the scooter headlight (6.5A) plus the left turn signals blinking (about 2A @ 0.75hz). I just kept checking on it every so oftenand decided to cut the test when I could see the turn signal wasn't as bright as normal and the rate was slowing down.

Then I hooked up the Satiator for the 16.4V 8A charge profile, whcih I've set as default so I can plug into the lighting pack first, since it has no BMS to shut off charging when done, but the main pack does, so it's safer to leave the main pack connected all night if I fall asleep while charging it, than it is for the lighting pack.

It's taken so far 3h50m to recharge 17.41Ah, and its' still charging at 200mA rate, is at 16.4V.

But something odd, is it kept saying "calibrating" across the top during almost all of this charge cycle, instead of the actual watts and temperature, once it had been charging for about 7 or 8 minutes at the 8A rate. I kept pressing the button to bring it out of screensaver mode whenever I checked on it, and it displayed everything else normally, just not the watts and temperature (just "calibrating").

I'm charging it outside, to verify this all works in Phoenix heat, though it is in the shade it's was still over 100F in that shade (107F around 3pm) despite teh damp ground under the trees and lantana and "porch rug" out there around the trike at teh back door (from watering this morning), and at 7pm was only just down to about 98F right there at the trike at the back porch, with sunset due in about 45 minutes from then.

Once it did drop down to that temperature, the Satiator began to readout the actual wattage (3w) and temperature (46C), about 114F. I don't know how hot it was at full charge rate when it wouldn't give a readout, but it was pretty dang hot, as I couldn't hold it comfortably in my hand for very long.


Anyway, just an oddity.


Havne't tried a deep discharge and charge of the traction pack yet, cuz ti's charging seems normal, just seems like the lighting pack wasn't normal...but i supsect it was really the RC charger used on it before that wasnt' normal, and I just didn't know it.
 
lighting pack finished charge shortly after I left it above, at 3h59m, 17.43Ah total, 40C by the time I checked it a few minutes ago.


So then I started recharging the traction pack from my trip this morning. That was when I noticed in the gathering dusk (sun set not quite half an hour before at that point) the blue flashing light of the controller heartbeat, so it's got some extra recharging to do to make up for whatever the controllers use when on but not running a motor.

it's 43C within less than a minute of charge start, and rising, 362w, 53.2V 5.8A. Within a few more minutes it was up to 63C, when I came in to type this up.

Outside temperature has dropped to 88F, cooled rapidly from the pre-sunset temperatures, dunno how far it will cool before it slows down. Expected to only get 75F for a low, and that will probably be just before dawn, so it's probably going to "stabilize" at around 80F or so and drop slowly for the rest of the night, at a guess.
 
I've gotten some new pics of the SB Cruiser as it is right now, along with CB2.
 

Attachments

  • IMG_2345.jpg
    IMG_2345.jpg
    83.4 KB · Views: 3,207
  • IMG_2346.jpg
    IMG_2346.jpg
    83.7 KB · Views: 3,207
  • IMG_2347.jpg
    IMG_2347.jpg
    90.5 KB · Views: 3,207
  • IMG_2359.jpg
    IMG_2359.jpg
    63.7 KB · Views: 3,207
Wow! Gettin' real professional looking. I do like the steering angle on the trike with that u-joint. Very clever.
otherDoc
 
Mmm...no u-joint; it's jsut a bent top-tube tiller same as when I first built it. :)

Considered u-joint steering, have one I might be able to use I think, but was too complex for the first draft.
 
Been riding Crazybike2 last several days, but I still used the trike...if not for it's intended purpose. ;)


I needed to cook some stuff yesterday while waiting for someone, and it is getting hot these days, so rather than add heat inside the house i used the toaster oven outside. Part of taht was also to use the heat from the bright sun to help do all of the preheating/thawing and a little of teh cooking.

However, since Yogi and Tiny are not known for the ability to resist the smell of noms, and this was going to bake for some time, I needed a place in the sun but out of easy reach, and not something either of them could knock over. Hence, I put the oven on the rack of the trike. I forgot to take a pic till I was done with it, though, so it doesn't show the stuff set around it to block breezes and gather heat from sun onto it. :/ The trashcan is just there to block the sun from shining on the trike's battery directly (cuz there's no cover to prevent that yet).
 

Attachments

  • IMG_2376.JPG
    IMG_2376.JPG
    70.6 KB · Views: 3,121
  • IMG_2375.JPG
    IMG_2375.JPG
    70.5 KB · Views: 3,121
Used the trike to carry Tiny to work with me a couple weeks back when she was sick again for a few days, though she got over it on her own in the several days before the vets could find any time to see her. :/

Since it had been hot and sunny, I pushed a styrofoam box down down into the rack's frame to provide more insulation against the near-midday sun on my way to work each day, for the crate/kennel on the back that Tiny rode in.
IMG_2437.JPG


Since then haven't used the trike, but been parking it out back by the back door mostly under teh awning, and covering it against the occasional light rains. Hasn't rained every night but a few of them, and some mornings, like today a little sprinkle.
IMG_2429.JPG





(below sort of crossposted to CB2 and SBC threads but not quite cuz isn't exactly the same on each)

Got a new cane holder on the trike (and bike) now, thanks to the new poopy-cleanup-stations at work.

The unused wallmount holders for the popup "wet area caution" signs were being tossed out, so I saved them and added them to CB2 and SBC, with one spare for later.
IMG_2436.JPG


SBC's is hose clamped to the frame just behidn teh front edge of the wheel housing, just inboard of it, and ziptied up at the top end, which is a better placement than I usually have to use for the cane bungeed between that spot and the front edge of the top rack
IMG_2435.JPG

The only issue so far with it is that since the cane isn't strapped down, it rattles around, so rather than just strap it into it, I wrapped a rag around the middle of it, ziptied in place, to act as a "cork" to friction-fit it into the tube. Works fine so far.
IMG_2434.JPG

I coudl also probably make a cut-away rubber sheet or soemthing at the top at the top of the holder instead, but then it will grab at teh cane's footpad going in and out, making it harder to pull out especially, and I'd rather not have that. I drop it enough as it is, and have to get down on the ground to pick it up sometimes, meaning prying myself up off the ground with it afterward. :/
 
Stretch a cut piece of inner tube across the top of the cane holder. Either a hole cut in it, or two tubes leaving a slot in the middle. Then it won't rattle while you ride.

SB is looking so nice! So glad I got to help it get born.
 
dogman dan said:
Stretch a cut piece of inner tube across the top of the cane holder. Either a hole cut in it, or two tubes leaving a slot in the middle. Then it won't rattle while you ride.
That's sort of the kind of thing I was thinking of, but as noted, it makes it harder to get the cane in and out of it (especially out), cuz the foot catches on it and then I have to use both hands to hold back the rubber while I pull the cane itself up and out. Even if it's not tight, it's still more work than I wanted to do...hence the rag on the cane, which adds no extra work to insert or remove the cane but holds it in place just fine, like a cork. ;)

I chose red cuz it's more visible and (like the reflective stickers on it for nighttime) help drivers in parking lots see it moving even though they don't pay attention to people-shapes (cuz why would there be people walking in parking lots? :roll: ), they often see *other* shapes if they're colored brightly enough.




SB is looking so nice! So glad I got to help it get born.
So am I--it's been very useful so far! :)

Maybe if you come this way next year you can take it for a 3-wheel drive ride (or 2 if I don't get the front figured out by then).

I wish it was big enough to take both of them with me to work today, though, cuz it's fireworks day, and people have already started last night and a little bit scattered throughout the day today. :(

Yogi hasn't gone out to go potty (except for a quick pee this morning) since yesterday sometime, probably yesterday midday before I left for work. He's now terrified of any change in lighting at night, becuase to him that means thunder is about to follow, so even an airplane in the sky, or a cloud moving out of the way of the moonlight, or a car turning a corner a ways down the road with headlights shining on the houses, all are enough to make him panic and run back into the house and hide on the bed. :(


Tiny only cares if there is actually a noise, but Yogi anticipates the noise based on the light, and is afraid even when he doesn't need to be. This is only in the last week or so, since the last overhead thunderstorm about a week ago. Might get better, might not. We'll see.


Anyway, I'm gonna load them both up with calming treats before I leave for work. I considered taking Yogi with me just so he doesn't have to suffer thru the panic of anticipation of noises, but then Tiny will be alone. (I think she does a lot better alone than he does, though they both panic about the same for the noises). Probably I'll leave them both here together.


I have not yet been able to put together a sturdy enough carrier to use on teh trailer for one of them while the other rides in the trike, or I'd do it that way.


We close an hour early today, but it will still be well after major fireworks have been going for a while before I get home. :(
 
Forgot to post it, but Tiny and Yogi stayed home for the day posted about above; and neither had any fun with the noise at all. I have pics in the housefire updates thread of them when i came home, just waking from sleeping on top of each other (whcih neither of them nromally tolerates).



Used the trike today for a it's longest trip so far, going up to WinCo about 55th Ave & Bell Rd for groceries, and an attempt to pick some stuff up from Freecycle since taht was on the way, sort of. Should've been a total of about 11 miles or so, maybe 12 with certain detours I might have to take depending on traffic/etc.

But it turned out to be at least two miles more than that, possibly more than three more (no speedo or odo so can't be exact), due to unintended detours/deadends/etc.

Times are estimates because I can't clearly remember, after the heat and exhaustion from later on the the trip.


I left the house around 3pmish, and rode significantly slower than usual, more like about 15MPH and less for most of the way, only going faster when needed to get thru traffic areas on main streets/intersections, otehrwise conserving power by staying slower.

I made it up there sometime after 330pm, probably closer to 4pm, (don't remember exactly), but headwinds and detours used up a lot more power than expected. I was already at 11.2Ah by the time I got there.

The map I'd used didn't show the streets properly, so boo for duckduckgo's map function, which often won't even show up when I do a search on the exact same terms or address! I shoudl've just used the googlemaps site i've used for years, but this looked familiar cuz i've been in that area before, so I thought it was right when it wasnt'. :/


I didn't pickup teh stuff cuz I didn't get any answer and didn't realize it had been set aside in almost plain sight :oops: so I planned to come back and try again after going up to Winco. However, coming back I had more detour trouble cuz of the maze of deadend streets south of Bell and that shoppng center, so I had to just go ahead and head home before I ran out of power. I was now at more than 13Ah used, just trying to get out of that stupid mall area!


I've looked around in that area before when up there with CrazyBike2, and not found any accessible outlets that work (some are there but there's no power or they are covered and locked, or the owners won't allow their use).

There are a few food places with one or two outlets inside, but the mall is large and it's difficult to get from one section to another just to go around and find out if those outlets actually work (some are turned off, like McD's etc), and many places are simply too costly to eat there while charging (and I'd be there a while, at least an hour to ensure enough charge to get home).

I did stop at a couple places I knew had an active outlet at a table inside on the way to 31st Ave (my safer/easier route home) but both were very busy and the places near the outlet were occupied by families unlikely to be leaving anytime soon. :(

So I just kept going, keeping it around 10MPH or less. I considered stopping at Bill's cuz it was on the way, mostly, but he's out of town. I could've still plugged in, but I didn't feel right stopping by without him there to ask.

And so, a few miles later, as I crossed the intersection at 31st Ave & Cactus (about 3.5 miles from home), the battery died, at 17.5Ah used according to the WattsUp just before the voltage dropped below it's threshold and it shutoff and lost the ride data. Just lucky that it switched to the Ah readout before the screen blanked.

There's nothing in the area (other than houses) I could stop at, and nobody around to ask.

Of course, about half a mile earlier, a lady had been out front of her house and called out to tell me she liked the trike, and I waved back, but I didn't think I should turn around and pedal back to ask if I could charge up there, as if she didn't want me to I'd now have a whole mile more to pedalling back home.

Since I can't really pedal much, even under good conditions, and I was already hot and tired, I pedalled the trike very slowly (I could've walked faster with my cane, by myself with no load) in short bursts for a little more than a mile, which took around an hour (maybe more), to get as far as work at Peoria, where I almost gave up and just sat there before I even finished getting thru the parking lot, cuz I was just so exhausted and hurty.

Once i got it inside in teh breakroom, I sat to rest, drink lots of water, cool off, and plug in to charge up enough to get
home. While waiting for it to charge I went to the dollar store for some thigns they usually have cheaper than anywhere else (and some things like the lemon concentrate I make "lemonade" from that *only* the dollar stores seem to have--none of the grocery stores have anything like it except in teensy weensy expensive bottles, where the dollar stores have it in quarts).


Anyway, after a little less than an hour there, adding back 5.7Ah according to the Satiator, I went home, which took another 2.6Ah, according to the WattsUp.

It's now recharging fully, so we'll see what it's total Ah input shows vs what teh WattsUp says was taken out.

Total WU output reading is 17.5 + 2.6 = 20.1Ah.

Total Satiator input reading is 5.7 + 15.4 = 21.3Ah
[strike](to be edited in later once charging is done).[/strike]







Oh, and the main reason I'd gone to WinCo (vs somehwere much much closer to home) was cuz of some really good coupons they'd sent out, for stuff I actually needed...but I didn't have ti with me when I got there and can't find it here at home, so I lost it somewhere and have no idea where. :/




But nothing broke on teh trike, despite teh bad roads and potholes, my shoddy construction, and recycled nature of parts. :) Worst that happened was that on teh right side, x5304, the righthand nut doesn't hold completley tight so even though the clamp on the lefthand axle holds great, it lets it pivot up and down a teensy bit, sliding in the righthand dropout just slightly, but enough taht it lets the front upper edge of the lefthand side of the tire rub on the frame, when I make a hard enough turn (or hit the wrong kind of pothole) to make it move. Then I have to get off, lift that side of the trike, then push it in at teh bottom of the tire, which fixes that. Need to add a shim above the axle itself to prevent that. Or weld a tiny dot in the top of the dropout itself.


And I *knew* I should take the RC LiPo 14s2p ammocan pack with me, and meant to...but forgot abotu it completely before I even started getting ready to go, and I don't know what distracted me from it. I knew it wouldn't give me much power, but it might be enough in case of runnign out on the EM3EV pack. Oh, well. Next time..... :oops:
 
Data post:

Total Ah used on trip before battery cutout: 17.5Ah according to the WattsUp.

Partial recharge at work on way home: 5.7Ah according to the Satiator.

Trip home: 2.6Ah, according to the WattsUp.

Full recharge at home: 15.4Ah

Total WU discharge reading is 17.5 + 2.6 = 20.1Ah.

Total Satiator charge reading is 5.7 + 15.4 = 21.3Ah

(but I also forgot to unplug the battery output from the WattsUp and the two controllers, etc. so the drain from those is also in there--I don't remember how much it is, but it appears to be about 200-300mA based on the flash of the Satiator's screen as it occasionally is allowed to output current into the pack by the pack's BMS during balancing, before the BMS cuts off input again. (it's less than a second so I can't see the whole screen for sure).

Since it took about 3 hours to charge, that would be 600-900mAh of charge, whcih is at least half to most of the difference between teh Satiator and the WattsUp readings, and the rest probably has to do with the wasted power in balancing, and whatever resistance the WU adds to the Satiator output and whatever offset that causes in the Satiator reading).
 
Wow, a real nightmare to be stuck out in afternoon weather like that. I've had it happen because of a large rock or nail gutting a rear tire past repairable.

Wish I could send you a flexy solar panel the size of your dog crate. Then you'd always have a few amps of limp home power.

On the other hand, hell of a ride when your battery is not big enough. You'd need it seldom.
 
If my brain had worked and I'd taken the other packwith me like I meant to, my battery *would* have been big enough. :lol: :oops:

The weather...it didn't help but it wasn't what kept me from pedalling home. The two things that did that were:

--me (my joints and my unpowerful muscles that aren't used to doing that anymore),

and

--gearing. If I had a lower gear I could've kept spinning the pedals and crept along. Would've taken a long time but I could've kept going instead of stopping for longer than I moved, albeit at a really slow speed.

I don't know what the exact gearing is right now...but I think it's something like 36 on the front, maybe 34, then 18 on teh shaft, then 16 on the rear 20" wheel. So a 3-speed IGH in the driveline somewhere with a 1:1 center gear, and underdrive and overdrive might've given me both enough pedal output to help at faster speeds in the 8-10MPH range where the motor would still do most of the work, and also the ability to pedal it slowly without the motor, for longer than I could at the more direct input gearing I have now.




As for the solar...I'm not sure cuz I haven't done the numbers, but I don't think that anything smaller than one or two or three of those "big" panels, like the "kit" HF sells with panels like around a foot and a half by three feet or similar, would have enough output to charge the pack any (and they'd have to be either wired in series right across the pack's charge input, or I'd have to have an MPPT that has a 58.4V output from whatever teh panel input is).

The data below is approximations based on the little info I have gathered by watching the WattsUP in non-traffic areas; I don't have the WU on there all the time either, just when testing (and yesterday for the long trip to keep track of Ah).

At full acceleration, both motors, it takes about 60A for several seconds to get me going to 20MPH, where either motor alone will keep me going at about 9A or so.

At low acceleration to only 10MPH or so, helping it as much as I can with the pedals for the first few MPH, it still takes >20A with just one motor, dropping over a few seconds to about 6A or a little more.
 
Back
Top