What does @kolyandex sell here for the i-miev to make software modifications?

[hjdlsnbc]

The i-miev have a EV-ECU MH8106F with 1024K of memory and also the BMU seem to be done with the MH8106F. The user @kolyandex seem to be the only one who reverse engineered the firmware of the i-miev and now sell this product here:
https://ecutools.eu/chip-tuning/mitsubishi-flasher/mitsubishi-ev/

@kolyandex recommends to use this connector https://ecutools.eu/chip-tuning/openport-20/ . There are also cheap china clones @kolyandex do not bother to also recommend. He seem to never have seen any issues with those cheap clones.

But lets say a person spend 190$ for https://ecutools.eu/chip-tuning/mitsubishi-flasher/mitsubishi-ev/ and 189$ for https://ecutools.eu/chip-tuning/openport-20/, what would the person at the end get? The ability to modify the BMU and configure it to accept 120Ah cells? Or something else? Its really not clear at all what you are buying there for the money.

 

[coulomb]

But lets say a person spend 190$ for https://ecutools.eu/chip-tuning/mitsubishi-flasher/mitsubishi-ev/ and 189$ for https://ecutools.eu/chip-tuning/openport-20/, what would the person at the end get?

I've often wondered. My vague impression is that each ECU has a number of "settings" or "parameters", and you can change those. I don't think that you get access to the actual firmware binary image (which is what I'd want, for poking around in). As an example, the dashboard firmware might have a setting to display the speed and estimated range in miles or kilometers. You don't want 1024 versions of the firmware if there are are 10 such binary options for different markets and hardware variants, and you might have some settings that take a numeric parameter. One example of a numeric parameter might be the nominal capacity of cells (see below).

The ability to modify the BMU and configure it to accept 120Ah cells?

That depends on how the firmware was written. It might have a parameter for the present Ah capacity of the battery, or it might not. (I believe that the iMiEV BMU does have such). But the firmware might have been written with certain limits, e.g. it might not accept more than 48.0 Ah in that setting (which is what a new original 50 Ah cell would be rated at, after buffers).

 

[MickeyS70]

@hjdlsnbc what are you actually trying to achieve? If your goal is simply to use 120Ah cells then a CAN bridge is a viable alternative:

https://myimiev.com/threads/main-traction-battery-upgrade-i-miev.5458/

 

[hjdlsnbc]

@coulomb
Yes, this is also something i want to be able to do. I would like to flash all firmware files i like on every single memory in the car. For example the latest (maybe last for ever?) firmware released by OEM changed the max charging speed from bad 50kW to much better 35kW so that the cars out there last longer. I do not want to pay any OEM to get this firmware to install it. I want to install it by myself.

@MickeyS70
I do not like the CAN bridge idea that much. Why should i modify CAN messages when the correct solution is to not send out the wrong CAN messages? Of course i would want to set the correct values instead of modify them halfway.
The current advertised modification offers this settings:
Capacity 0-120 Ah
Charge voltage 4.0-4.3
Source: https://forum.kolyandex.su/viewtopic.php?t=869

For example the default OEM configuration is to charge to 4.1Volt. For example when i in regular use case drive the car just few km and do not need the full range, i can set the BMU to charge the LEV50N cells to 4.0 instead of 4.1 volt and even further exchange the longevity of the LEV50N cells. When i need temporary the full range of the car, i then connect Openport 2.0 adapter to OBD2 port, change value to classic 4.1Volt and after changing the value i connect the charger to the car and let it charge and balance the cells to 4.1Volt.

You asked:

what are you actually trying to achieve?

Since 2023 i want to disable the TMPS and this is still my main goal i would like to achive in the next weeks: https://myimiev.com/threads/tpms-on-i-mievs.1881/page-2#post-45700
Later on i would like to play around with things like installing the firmware from a 88cell to a 80cell car. Someone already tried out and installed a 80cell battery pack with its 80cell configure BMU in a 88cell car and the EV-ECU just took it without any issues.
80cell LEV50N based cars have always this issue: https://myimiev.com/threads/peugeot-ion-gear-b-hack-leads-to-turtle-mode.5248/
So it would be nice to just install the latest EV-ECU firmware from the latest 88cell cars and you get those B and C gears.

In general: I want to own the car. Not the car owning me. Can someone tell what is the offer i linked there?

 

[MickeyS70]

Nice to do list, unfortunately the only person that can help is @kolyandex. But even before he went AWOL his business model was to do the mods remotely rather than providing the tools for DIY.

I agree, a CAN bridge isn’t ideal but it works and you don’t have to pay a dubious 3rd party to make it happen..