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Messages - mdemin

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1
I believe it should be ok. The previous generation of firmware was in the 1xx region.

2
Hello,

I am looking for a broken/damaged/not working BMS from an SR/S SR/F bike. If anybody has one I would gladly take it. Can be anywhere in the world.

3
Zero Motorcycles Forum | 2013+ / Re: Magic charging fix SR/F
« on: September 07, 2022, 11:26:14 PM »
The Cypher 3 firmware is for the dash, not for BMS. The way I see the problem is that they incorrectly calibrate the Ah left with the voltage. I don't know how they do it, but Nissan LEAF for example calibrates the battery as empty when any single cell (corrected for internal resistance) reaches minimum voltage (not empty, just Very Low Battery Warning). Then when you recharge the car to full, the battery recalibrates the state of health.
On ZERO the Very Low Battery warning comes on based on the Coulomb counter (AH, SOC) which is stupid, since the computer should clearly see that the battery still has capacity left based on the voltage reading. The BMS is only slowly increasing the SOC variable because the voltage is too high for the calculated SOC variable.
People are recalibrating the capacity on ZERO by running the bike to total empty until you get Battery Depleted Error and then charging as slowly as possible to full. I guess they should work on the algorithm to recalibrate more often. If the system encounters the phantom charging, it should increase the battery reported capacity so it does not happen next time.


4
Zero Motorcycles Forum | 2013+ / Re: MBB console login
« on: December 05, 2021, 10:03:41 PM »
Is the "tool" login level enough ? I believe it is the level used by the mobile app. Another level is tech.

5
Zero Motorcycles Forum | 2013+ / Re: MBB console login
« on: December 05, 2021, 09:59:25 PM »
Yeah, but I am not based in any of those countries :)

6
Zero Motorcycles Forum | 2013+ / Re: MBB console login
« on: December 04, 2021, 08:56:44 PM »
Is reverse engineering to obtain the password legal ?

7
Zero Motorcycles Forum | 2013+ / Re: MBB console login
« on: December 03, 2021, 12:52:25 AM »
If I had the login data from a Russian friend. Is it legal to publish these login passwords ? Is this information under the "right to repair" law in the US ? I am based in Europe so the rules are a bit different here.
But I think a complete hacking tool that could unlock everything before they even released the software purchasable features would make some people at least angry.

8
Zero Motorcycles Forum | 2013+ / Re: MBB console login
« on: December 02, 2021, 10:50:59 PM »
What would be a proper way to publish the password but not making Zero angry enough to change it in the next firmware update ?
A text file spread through torrents? I think this forum is also read by people directly affiliated with the manufacturer.
They changed it once and will do it again.

9
Zero Motorcycles Forum | 2013+ / MBB console login
« on: December 02, 2021, 02:06:23 PM »
Hello,
I tried poking around the MBB console on SR/S and to go the higher login one needs a password.
What can I do if I could login ? Why would this password be needed ?
I know one is accessory config that could be modified, another maybe odometer adjustment, wheel size adjustment, what else is there ? I don't mean stuff that could break the bike, I mean stuff that is needed and you had to visit dealer to sort it out.

10
Zero Motorcycles Forum | 2013+ / Re: Increase mileage on odometer on SR/F
« on: November 05, 2021, 02:28:42 PM »
What would happen to unloaded motor running at say 60mph/100kph ? The consumption would be negligible, I think it could do like 600miles/1000km even more.

I was thinking about tapping into CAN on the OBD port and supposedly there is exchange of odometer counter on the startup between MBB and dashboard (at least it was so on the previous zeros ?). Then all I have to do is fake some packets and it should update either of the units and increase the counter.

11
Zero Motorcycles Forum | 2013+ / Re: Increase mileage on odometer on SR/F
« on: November 05, 2021, 02:38:22 AM »
Reason is the taxation system in Europe which treats bike as new until it is over 6 months old and has more than 6000km on the clock(bike is older than 6months, but only 1000km on odo). If it is as new, I must pay tax and the old owner from previous country gets a refund which he does not want to give back.
This is not evading taxes, just evading having to go through the process of refunds that the previous owner is unwilling.
And I must do it in couple of days without license plates and winter is coming 🙂

12
Zero Motorcycles Forum | 2013+ / Increase mileage on odometer on SR/F
« on: November 05, 2021, 01:59:21 AM »
Hello,

I am getting a new bike and I need to increase mileage on odometer to make it older. Right now it is under 1000 and the plan is to go over 5000.
What is the source of the speedometer ? ABS sensor or the encoder in the motor ?
My idea is to either:
1. rise the rear wheel to spin it in the air for some time or
2. generate ABS signal if that is the source of speed for the MBB/dashboard

The easiest would be to reprogram the MBB/dashboard with higher number, but the passwords for MBB are probably nowhere on the internet, right ?

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