AEVA Forums

jonescg wrote: ↑Wed, 16 Sep 2020, 19:10 *doesn't like to be charged at 22 kW... Ask me how I know.

How do you know Chris? Is there a story there?

I think I recall you had trouble with a loaner car, but surely they're not all going to have trouble with 22 kW?

tonyw wrote: ↑Wed, 16 Sep 2020, 19:28 We're ALL waiting!

No pressure, then

Now what can we Southerners do to help in this investigation? Send pizzas? Beer?

You could find me a decrypted BMU image to analyse. Someone must have one, or know how to get one. But it might be tricky.

What would be an optimal inverter temp reading, Under 50°C. Though with fans blowing down as they come from the factory, you have to say under 60°C. See this post . You certainly could do with improving cooling in your inverters. Fan rectification is the easiest quick fix; see the index of the PIP-...

richi wrote: ↑Tue, 15 Sep 2020, 20:41 Do you have a handle on how far it'll actually drive until power gets reduced? (i.e., not just lighting the turtle, but actually acting like one.)

After the 12%/10% turtle light, I believe that when the estimated SOC gets to 0%, the car stops dead. Like a turtle on its back

NMC cell discharge curve: CJs Discharge test NMC.JPG Compared with the LEV50 curve, from the datasheet: LEV50 SOC.png Here is my rough attempt at overlaying these two, using only the 25°C curve for LEV50. The NMC curve should probably be a bit higher, bringing them a little closer together: LEV50 v...

The inverter has it's own internal DC and phase current sensors which it uses to do just that - so I think messing with the battery current sensor is probably fairly safe. I'm glad to hear that. But there is still the chance that some ECU will compare the current measured in the battery to the curr...

Should quickly add that the original LEV50 cells were LiMnO2 chemistry, not LFP. Oops, I used "NMO" instead of "LMO". Sigh. I've edited the original post. LiMnO2 cells maintain a higher operating voltage in the first 50% of the SOC, unlike NMC which tend to show a quick drop off to 4 V and fairly l...

I dare say hacking the current sensor won't be enough—it would compensate for the Coulomb counting downward that I assume is happening, but not of course for the trigger at critical low cell Voltage. Right, but the larger capacity should stop the low cell voltage from happening as soon. Plus, we wa...

Ahh yeah it's a bit of a mess... More than a bit I think! :shock: [ Edit: thanks for the link. ] It is understood that new management at ChargePoint’s US headquarters are focused on US, EU and UK markets where the mass uptake of electric vehicles is supported by government policy. Thanks again, Coa...

My question is: what will happen if/when the BMS shuts down? Will a rush of current from the SCC damage the PIP? I've often wondered about that. Particularly with integrated BMS batteries like the Pylontech and similar. So far, I've not heard of people having their inverters or SCCs damaged because...

Mike, to be clear, I'm interested in finding out what the re-celled car is doing, so we can make a guess at how the BMS is reacting to a higher capacity pack and then how best to hack around the problem. Time for an update. There is currently one iMiEV Minicab fitted with the 93 Ah cells. These are...

Not taking sides at all, but here is Nikola's rebuttal: https://nikolamotor.com/press_releases/nikola-sets-the-record-straight-on-false-and-misleading-short-seller-report-96 A short excerpt: Nikola described this third-party video on the Company’s social media as “In Motion.” It was never described ...

If true, I'm amazed that you can get to a $20 billion company from basically lies.

Thank you coulomb. The most recent I have is 41.07 and bluetooth 0.21 Hi Ojeysky and Coulomb, Does any one knows where is the firmware update for 5048GK ? The 41.07 mentioned is a GK firmware. However, with the major version number so different, I'd be reluctant to update to that version. my curren...

I also notice that at CSD19505 TO220 MOSFETS, voltage is increasing up to 30V and dropping again with same clicking sound frequency. Is this a clue for something? It has to be a big clue. Are you seeing this voltage across capacitors C8/C9/C12/C13? These are all in parallel. They're suppose to be a...

That means that the car is starting to unlock bottom charge for using(10% is emergency charge Interesting. Battery University mentions this as well, but no details. and the cells are topped up to about 4,105v(about 90-95% real SOC). Are you saying that the OBC targets 4.105 x 88 instead of 4.100 x ...

My semi-educated guessumption has always been: If the BMU caps the estimated SoH, it'll cap the GOM, and it might cause the turtle to illuminate after Coulomb counting down to zero, but the car would carry on driving fine—only slowing down when the lowest cell Voltage reached a critical threshold. ...

I upgraded the last inverter successfully to 71.00e. Great! I found a curcuit board inside the fourth inverter, which is connected by a cable with the board where I can plug in the serial cable for the computer. If the larger of the two boards looks like the below, it's the control board, with the ...

This is my first post. Welcome. Do I have my PIP-4048 Inverter bricked? Almost certainly not. Then I tried to update the third inverter from 73.00 to 73.00e, but I got a nasty surprise: The upgrade started as normal, but the number of transferred blocks per time unit decreased over the course of th...

what is the latest firmware for a PIP-GK / Axpert VM III? In this post , the user shows 41.14, and in this post , the user also shows 41.14. These may not be the latest ever, but that's all I'm aware of. The latter shows a removable display version of 02.40, which is recent but not the latest known...

Ok. Inserting an Axpert control card wont work. The footprint is completely different Yes, it's a VM model, but presumably not a VM II (those have 450 V max SCC). The current firmware is U1 20 30 What I have to load is U1 72 70 etc. Im not sure if it will even load and if the inverter will still wo...

Colourful EV promoter Jack Rickard dies at 65.

https://www.semissourian.com/story/2831878.html

rthorntn wrote: ↑Fri, 04 Sep 2020, 06:49 Could you please expand on this coulomb?

I mentioned the PV leakage issue here. It's even possible that this is how the problem manifests itself in a PIP-GK / Axpert VM III; the post refers to PIP-MG / Axpert MKS II models.

jonescg wrote: ↑Thu, 03 Sep 2020, 19:57Given I'll consume almost everything I generate most of the year, exports will be bugger all.

Ha! No thrippence for you then!



WA FIT reduced to 3¢/kWh

... the components which were faulty are as follow 1). 3845 8pin dip ic ... 5). 01b 1k resistor Is that the 1 kΩ resistor that connects to the 3845 pin 3? If so, it's a current limiting resistor (not doing its job by the looks) connecting the source resistor to the current sense input of the IC. Do...