openinverter forum

tom91

Tesla does this for AC:

- Digital comms via Single Wire CAN on CP, if no response time out and go to PWM -12V +12V like other charger.

You could just do this with SWcan and even just run chademo protocol

tom91

The Lexu RX300e is 3P like you want. https://www.batterydesign.net/lexus-ux-300e/ Usable energy = 45 kWh Total energy = 54.35 kWh SoC Window = 82.8% Nominal Voltage = 355.2 V Nominal Capacity = 153 Ah Configuration = 96s 3p 288 cells in total Power = 167 kW10s Oh look at that this one is rated for 3...

tom91

BMW Ix3 https://www.batterydesign.net/bmw-ix3/ Total Energy = 80.3 kWh Usable Energy = 74 kWh SoC Window = 92.2% Nominal Voltage = 345 V Voltage Range = 394.8 V to 235 V Configuration = 94s2p Cell count = 188 Nominal Capacity = 232 Ah Peak 10s Power = 233 kW Kona 64 kWh https://www.batterydesign.net...

tom91

Tachopis wrote: ↑Thu Mar 21, 2024 12:47 pm discharge rates being typically 1C, Bigger total capacity of the battery, bigger discharge current, bigger performance of the battery.

tom91

Why 3p, you are quite lost. How many cells are in parallel has nothing to do with its performance.

You need to find the continuous and peak rating of the packs. The cells used and in which configuration has no direct link to this.

tom91

Do you have internal wiring information showing the signals between the "Cell Measurement/ Voltage Sensor unit" and the Battery Master ECU?

Best to do would be wire the whole thing back up (you should have not stripped it fully ideally) and grab logs, before changing anything.

tom91

I'm confused. have you sent an output of 100% Before the wiki said it was a power request in Watts and not %. The requested 100% resulted in 13.5A draw at +/-365V or 5kW draw. So this is good and is as per expectation. Also confirmed the heater self regulates if it gets too hot, the test setup was ...

tom91

I updated this yesterday, power is in % 0-100, any value above it shuts down. I updated the Wiki.

tom91

What voltage range?
Is the weight including or excluding the housing and all other required components?

You are going to struggle to find anything really with these specs. Like really hard.

Have a look here: https://openinverter.org/wiki/Batteries

tom91

I would prefer someone to confirm this who has actually tested it though. And I haven't heard of the other brands. Yes I have ran this a few times, it works. Most chargers will be like this too as the CP in the EV needs a diode, the -12V is for the station to make sure its not a rouge resistance on...

tom91

that makes it a pain, as it will be Panasonics take on how to do ISO-SPI/ISO-Whatever.

So not directly reusable without reverse engineering it from a signal level.

tom91

Turns out you do need the Voltage Sense to work for the BMW I3 LIM to be happy to allow AC charging, it will however start AC charging with the unexpected voltage at charge port, if the HV U sense is at 0. Once you cycle the ignition it will test contactors.

tom91

Martineves wrote: ↑Sun Mar 17, 2024 3:17 pm Thank you in advance

Will any form of remboursement be provided for this?

tom91

How is the test so far? Do we have regen success with the gs450? I am planning to do some testing next week with a build with GS450h. Other vehicles configurations are also being tested by Damien, he will create a release once all testing is done. Note the GS450h testing requires the removal of reg...

tom91

I do not have the time to get a ZombieVerter, as the project need to leave my shop next week. The Charge Port, Charge Lock and LED are all wired up. All info is in the zombieverter code, I am not going to list it out for you. Feels like you clearly messed up your planning and are trying to get othe...

tom91

Maybe getting some stick on temperature labels will be good for your testing

It "logs" highest temps.

https://uk.rs-online.com/web/p/temperat ... ls/0285914

tom91

Question: What is the very minium requirements to achive functional CP, PP comminucation allowing for AC charging from the EVSE. Both in terms of wiring and additional components (lock, LED, voltage measurement etc.) but also if there are particular CAN messeges needed? Get a ZombieVerter and wire ...

tom91

muehlpower, thank you for all your work on this. Seeing the spec of the heater being upto 5/7kW. The LIN control message only has on byte for power level request, this means we can only request 2.5kW. Has anyone been able to get more out of the heater then the 2.5kW. Is it possible that Byte one con...

tom91

We want to IC markings on the module boards not the main controller.

tom91

Please get details of the chip, better picture and markings on it.

This looks like some ISO-SPI comms.

tom91

https://github.com/damienmaguire/Stm32-vcu

Damien is going to test it now. First tests concluded with an outlander rear inverter.

tom91

Like this pack?

viewtopic.php?t=4763

These packs do not use CAN internally but a protocol unique to the chips used int the BMS.

If you label and disconnect the CSC connectors and open it to take a better pictures of the PCB we can analyse it further.

tom91

There is development ongoing to get regen implemented correctly, i am working on this at the moment.

Currently testing on various vehicles and setups to verify this works.

tom91

Slight issue with this is that the final XOR for making the command correct for the numbers above 6 wont be correct, but if Andy has gotten the modules reporting the info this is all good.

It is possible that balancing will not work, this has not been proven yet.

tom91

AMP3R wrote: ↑Sat Mar 09, 2024 9:38 pm Do you have a dragy? Could you floor it and show the numbers?

No where near where any of that would be relevant yet.

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