Has anyone heard of or tried Toseven mid drive?
- Thread starter Domm
- Start date
Handy if you need a few microwatts to keep your watch on standby, not so good though if your meter has run out of credit.
3-D-printed cube dials into energy harvesting
Ambient energy emitted by cellular phones and modems can be captured and converted into electricity using unusually shaped technology.phys.org
It “looks like to me like” is very different to “clearly marked”.
Do you think the earth is flat because it looks like it?
Also when you spew out labels like NFC or RFID do you even know what they mean? Neither of those things is an amplifier. Both refer to short range wireless communications techniques. Exactly the opposite of what you would use if you had an inductive coupling.
It's amazing what people come up with
if an rfid chip is used to transmit the value of the strain gauge then the fixed coil side is connected to an rfid reader chip. I did enough electronic projects in the past to understand that. I run a computer business for more than 40 years. In the early days, my customers had to build their own computers and most other peripherals like modems and teletext. Now we just buy, everything is all done for you.
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Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader. This number can be used to track inventory goods.
from
This is not used for transmitting the output of an analog sensor.
If you think it is for that purpose can you please give me the part number of an "RFID" chip that has an analog input for a sensor.
You are impossible. Have you used a toll gate rfid tag? So how does that work?
edit
OK, that's not a very good example. I'll look up a suitable rfid chip to be used as data logger for you. That's what it is.
The first one I found is the SL13A. Seems like a good candidate.
SL13A (mouser.com)
edit
OK, that's not a very good example. I'll look up a suitable rfid chip to be used as data logger for you. That's what it is.
The first one I found is the SL13A. Seems like a good candidate.
SL13A (mouser.com)
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The toll gate is not a good example.
I stand corrected though, the part you posted potentially might work.
The RFID chip then though would not be functioning as an amplifier. It would be functioning as the analog to digital converter for the analog sensor.
hairsplitting. It's just a mean to preserve the signal. In practice, you need two strain gauges to eliminate the temperature drift and a 24-bit ADC like the HX711 before feeding it to your controller.
If I were to do it for them, I would use a slip ring.
Indeed, though really it became an all purpose-any political subject thread.A mere 101 pages at 2nd place? Abuse, ferocious wars, intimidation, libel, trolling, threats and other haven't stopped that Brexit thread!
Ironically I didn't intend it to be a thread at all. At that time before the referendum there was already a brexit subject thread, but it was going through pages so fast I posted the link to that BBC Radio 4 program separately so it wouldn't be missed.
Obviously it wasn't missed since everyone jumped ship from the older thread !
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Making an effort cycling is something I can't do anymore, therefore I like the Bafang BBS01B's cadence sensored operation, which enables me to pedelec for many miles despite being old and unfit - doing so makes me feel like the Superman I (never) was in the 80s. The other advantage is, I don't turn up to work sweaty in need of a shower. However, your mention of your sliding speed control is interesting - sorry, I can't find that post of yours to link, where you also mention you'd like to use a slider strip to control current next time. I assume you were using a KT system. A simpler automated system to increase current at the detection of increased rider effort might be useful and highly desirable for some. A couple of years ago and the year before that, I suggested that a TS system could be added to the Bafang BBSXX(X) series, suggested using a somewhat clunky method:
What is the bafang bbs pedal assist algorithm?
I’ve been bench testing my BBSHD and I’m confused by the pedal assistance. Is the crank output a fixed RPM for each pedal assist level, and pedalling is purely an on/off switch? Or does the motor turn faster depending on how fast you’re pedalling? I’d assumed the second, but it seems to be...
www.pedelecs.co.uk
... Because I'm rather lazy and don't have time to do unpaid programming, I posted that in the hope that someone other than me would take an interest and make available something I could simply buy, and because a torque sensored BBS01B kit isn't something I actually want or have any need for. I also wrote something similar with the same intention the year before under a different username, and I requested the deletion of that username and account by admin, because at the time I found this forum too interesting.
Meandering back to the system I wouldn't mind trying using at least once: Cadence sensored with current set at the cotroller via the PAS buttons 1 to 9 (6% [the minimum required to overcome motor resistance, plus a bit] to 100% of say 15A in 9 increments, with 100% keep current for every level), then automatic increase of motor current (except at level 9) using the throttle wires on the BBS01B, upon detection of more torque being exerted by the rider - the more micro than usual microcomputer would detect increased rider effort using a torque sensor of some sort. Current would increase slowly after n seconds (a user changeable variable) of continuous detection of increased effort, using the control input intended for the throttle, and would reduce power over a couple of seconds after detected rider effort is reduced (the power envelope would be user changeable). Ebrakes could be used to stop power at any stage. Fast responsive accurate control using good and expensive torque sensors wouldn't be necessary for what I have described. The Bafang controller's firmware would need certain settings, but no wholesale rewrite of the configurator would be necessary. While riding, one would simply experience more assistance being applied automatically when going uphill or traversing uneven terrain. Too much/too little assistance? Use the +/- PAS buttons (if throttle power is limited to PAS current levels). And the rider wouldn't experience a sudden unexpected huge dangerous increase in motor power triggered by potholes or rocks. Because it's firmware is open source, I also see this possible for the TSDZ2. Again, I'm hoping someone other than me will make something I can simply buy, because I'm lazy and am gleefully happy with my BBS01B's operation, after firmware setting fiddleage.
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I'm struggling to think of a subject which hasn't been discussed on that thread spanning thousands of pages, can you? I was very seriously considering downloading every post, thowing them into a database and making it all into a very long rhyming song to be sung by a Sinatra croon emulator. Maybe after I retire (I will never retire, thank goodness). Besides, automated rhyming isn't easy, and who wants to listen to Sinatra singing one extremely long and very weird song continuously for years?
Stating the bleeding obvious: Discussion about Toseven motors won't go on for long.
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Very true, pedelecs.co.uk ranks higher than Toseven's website for searches for their motors, and the Endless Sphere...
... are nowhere to be seen, on Google anyway. It's nice to see some turning up here, writing interesting posts. I'm grateful there are no sounds.
I do wish more of them would venture beyond this thread.
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I can't, all life is there.
I do wonder if the BBC are aware of the thread. Normally they keep these sort of documentaries I linked to online for a year, but that one is still online and can be listened to after seven years! There'll be some red ears of embarrassment yet in Switzerland.
Maybe either they know of the thread, or continuing demands for the program on i-player/ sounds are being registered.
.
no good
here's a first report from german forum :
"
The Toseven engine arrived yesterday. I installed it in my non-motorized Breezer bike to test it.
The 500W motor is exactly 500g heavier than the TSDZ2. The mechanical impression is solid. Nothing wobbles and the bottom bracket shaft has no play. The larger distance between the bottom bracket shell and the motor housing is also good. It also fits with the gear cable and brake line routed under the bottom bracket housing. The TSDZ2 doesn't fit in there.
Overall, it makes a mechanically solid impression and has the potential to be good in my opinion.
The cons:
The firmware definitely still has a pre-alpha status. The torque sensor (if there actually is one) is obviously not recognized or evaluated correctly. The display shows human power, but there is no difference between pseudo-pedaling and pedaling with a lot of personal effort. The displayed motor power is 300-400W even in level 1 and is 500-700W in level 5 depending on the cadence. That's way too high at the bottom.
When starting, the motor switches on without a ramp. When you start into a curve, the wheel is almost impossible to hold because the trailing time of about 2 seconds is also much too long. This is not harmless and has nothing to do with the behavior of a torque-controlled motor.
You can set the speed limit on the display, but the motor does not react to it. On the level, with a set limit of 25, almost 50 km/h could be reached without any major problems. The maximum cadence is around 100.
Toseven still has to make major improvements to the firmware. This has nothing to do with a fully developed retrofit motor with torque control. "
here's a first report from german forum :
"
The Toseven engine arrived yesterday. I installed it in my non-motorized Breezer bike to test it.
The 500W motor is exactly 500g heavier than the TSDZ2. The mechanical impression is solid. Nothing wobbles and the bottom bracket shaft has no play. The larger distance between the bottom bracket shell and the motor housing is also good. It also fits with the gear cable and brake line routed under the bottom bracket housing. The TSDZ2 doesn't fit in there.
Overall, it makes a mechanically solid impression and has the potential to be good in my opinion.
The cons:
The firmware definitely still has a pre-alpha status. The torque sensor (if there actually is one) is obviously not recognized or evaluated correctly. The display shows human power, but there is no difference between pseudo-pedaling and pedaling with a lot of personal effort. The displayed motor power is 300-400W even in level 1 and is 500-700W in level 5 depending on the cadence. That's way too high at the bottom.
When starting, the motor switches on without a ramp. When you start into a curve, the wheel is almost impossible to hold because the trailing time of about 2 seconds is also much too long. This is not harmless and has nothing to do with the behavior of a torque-controlled motor.
You can set the speed limit on the display, but the motor does not react to it. On the level, with a set limit of 25, almost 50 km/h could be reached without any major problems. The maximum cadence is around 100.
Toseven still has to make major improvements to the firmware. This has nothing to do with a fully developed retrofit motor with torque control. "
woosh cant you get motors like this as a kit and sell them ?
lightning-rods10.mybigcommerce.com
Single Stage Big Block Middrive- RHD
The best value in a high performance mid drive kit
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