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, best of my version 8.16 …is the ability to customize all ride assistance modes
Thankfully I have that in my current version Not sure what I'm missing out on except enhanced derestriction detection!
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, best of my version 8.16 …is the ability to customize all ride assistance modes
Hi, is the graph the capture of the generated magnetic field of your coil? How fast can you switch the magnetic field and still get it strong enough , especially with a coil with ferromagnetic material?
I don’t understand fully how you calculate the speed, wheel rpm?Where in setup mode the single direction pulse produces a stable speed, the reversing pulse fluctuates crazily before settling to 0kph. ..
Thoughts?
I find it very strange that an electromagnetic pulse similar to the one created by the magnet creates these problems. The only thing that has not changed in all Bosch software versions is the rotating magnet that provides an N-S pulse. We are missing something. Maybe I can get an old signal generator and with that I will try to emulate the magnetic signal on my latest version Bosch. I'm also waiting for an L9110 with which I will do further experiments. Unfortunately my programming skills are very limited, I get along better with analog electronics.Update on the reversing pulse:
Good news is that I've completed the code changes to run the L9110 driver. These first included the rewrite of how the multiplier behaves at low speeds. In the past, the first five wheel revolutions from stopped just pulsed the coil in unison with the passing magnet. However that's no longer possible with the reversing pulse as you first need to know the full duration of the pulse before you can start it, in order to solve for the positive/negative time periods.
Second change was to integrate the pulse behaviour itself. So I've got three pulse profiles:
Thanks to the programmability of the L9110, I can also drive the coil in the original single direction-only method, in the same way as with the transistor. An added benefit is being able to control the strength of the coil's field through code too.
- Step function: full positive for half duration, then full negative for half duration
- Linearly increasing: just ramps from 0 to full strength positive, then from full strength negative to 0
- Exponential: similar to linear, but increases/decreases on an exponential function
I've been for one ride with the L9110 and new code in place just replicating the original single direction pulse, to set a baseline.
Now, bad news is, that on my current firmware version, the motor doesn't reliably detect the reversing coil's signal.
Where in setup mode the single direction pulse produces a stable speed, the reversing pulse fluctuates crazily before settling to 0kph. I'm able to switch between pulse behaviours on the fly using my OLED display, so the only variable is the pulse. Snip below shows the change from single to reversing pulse:
View attachment 134763
Now, I'm on an old Bosch firmware version so MAYBE this would more successful on a current version, if in fact this is what the motor wants to see? But of course I'm not sure...
Thoughts?
I don’t understand fully how you calculate the speed, wheel rpm?
Once yo have the speed you know when you have to “fire” the pulse and for how long, no?
If that is the case , firering a single or “double” pulse should not do any “crazy” things?
I just take 25% of the modified rpm……
In normal riding mode, the magnet duration detected by the hall sensor at the wheel drives the pulse duration. Then it's simply the reverse calculation to the above to solve for the speed.
Hi,I pre ordered the Bluetooth model
Yes I did. It produced error code 523003.Hi,
did you already receive it? If yes is it working? Is it wortth 400€?
Greets in
Hello, can you tell us how you did it ?Yes I did. It produced error code 523003.
Trying to derestrict the Bosch Smart Rim magnet system is not worth the money, frustration, error codes, and loss of time. So I returned the Speedbox and converted my bike to the Bosch swing arm speed sensor / spoke magnet. I’ve never been happier! No more issues, no more rim magnet / internal speed sensor and my Bosch firmware is up to date (10.12.3)
Hello, can you tell us how you did it ?
Thanks
Thanks !You first need to get permission from your bikes manufacturer(not all are willing to do so). Your local bike shop has to email a request to the bike manufacturer to do this procedure. If approved the manufacturer will email a file for the bike shop to download new firmware into the bike that shuts the internal speed sensor off, while also turning on one of the motors existing electrical outlets for the new swing arm speed sensor to plug into.
Then it’s about $50 in Bosch parts. (Bosch Speed Sensor, Bosch Speed Sensor Chain Stay Adaptor/Holder, and Bosch Spoke Magnet)
Hi,Yes I did. It produced error code 523003.
Trying to derestrict the Bosch Smart Rim magnet system is not worth the money, frustration, error codes, and loss of time. So I returned the Speedbox and converted my bike to the Bosch swing arm speed sensor / spoke magnet. I’ve never been happier! No more issues, no more rim magnet / internal speed sensor and my Bosch firmware is up to date (10.12.3)
No it does not. It makes it so you have a lot more choices when shopping for a tuning kit.Disabling the external speed sensor removes the speed limit?
Yes it shows the correct speed provided you have selected the correct rear wheel size within the Kiox settings, because the new Bosch swing arm speed sensor and spoke magnet are now reading the bikes speed.After turning off the internal speed sensor and installing a new one with a spoke magnet, does the display show the correct speed?
ThanksNo it does not. It makes it so you have a lot more choices when shopping for a tuning kit.
which one did you go for in the end?No it does not. It makes it so you have a lot more choices when shopping for a tuning kit.
SpeedFunwhich one did you go for in the end?
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