openinverter forum

Bigpie wrote: ↑Sat Aug 21, 2021 7:32 pm I'm using reverse gear and not flipping the motor direction. I have throtcur at 3.6 and that sometimes gets me overcurrent cutouts (toyota forced)

How is the acceleration like with 3.6 throtcur once you get moving? I had it set at 3 I think and once the car is moving acceleration is pretty good I would say somewhat pulls to the seat on MG2 alone. But I've noticed it sometimes struggles from standstill if it has to climb a bump or some thicher snow. Wonder why that is and why the overcurrent in your case? Would be interesting if you could parallel Mg2&Mg1 and see if it makes a difference.

Not sure, but the torque per amp is going to be different with different motors I guess. I'm going to go throug the syncofs setup again to be sure but I think that's pretty good, slow speed is really smooth

Ev8 wrote: ↑Sat Aug 21, 2021 5:43 pm What have you set your lower cell voltage limit to in simpbms? First time out I was showing 50% battery at 3.5v but the bmw modules seem to start falling of the cliff at 3.4v so be careful until you work out where your modules are actually happy being drawn down to!

That's good to know. I'll configure simp appropriately for my BMW modules. What are you charging them to?

So I've welded closed a Panasonic AEV14012 that came with my battery pack. They are only rated at 140amp so probably a little too weak. Need to source replacement beefier contactors.

I've found a cross platform open-source tool for making the adaptations on VW clusters. Its even extracted the pin from my cluster so i can pair new transponders, not that the immobiliser will stop my motor it gets annoyed if the ignition is on without detecting a transponder https://github.com/gmenounos/kw1281test

Bigpie wrote: ↑Tue Aug 24, 2021 12:08 pm So I've welded closed a Panasonic AEV14012 that came with my battery pack. They are only rated at 140amp so probably a little too weak. Need to source replacement beefier contactors.

I have a few spare from my ampera packs. You’re welcome to them I’m not sure if the rating will be any better.

It's ok thanks. Got some gigavacs from Damien and back on the road.

This weekend I've put a bigger radiator on and mounted the outlander water heater. Need to finish wiring it in then I can be warm

So I still seem to be blighted with the CAN BUS issues and not really sure what could be the cause or even if it's an issue.

Symptoms:
Charger isn't pulling down the CP reliably, it'll intermittently do so. for this 0x285 is required every 100ms. I have this broadcast from SimpBMS configured at 50ms

Other information:

I have the Prius OI board configured to transmit 0x3FF
I have a Rev 3 board for VCU running stm32-car transmitting 0x001 at 10ms intervals
The average inter-frame interval are quite a bit higher.

Took the car to an EV meet, with bobby_come_lately, we got a charge from an 800v EV6.
Fair to say the 2 conversions there got a fair bit of attention.
https://yorkshireevclub.co.uk/

Managed to get a second pack, another 8.8kwh Golf GTE pack, £700 delivered.

Bigpie wrote: ↑Mon Feb 14, 2022 10:10 am Managed to get a second pack, another 8.8kwh Golf GTE pack, £700 delivered.

Well done. getting batteries for under £100 per kWh is a result.

Wasn't as cheap as the first pack (£500) but still, double the range when installed so can't grumble

https://electricroad.co.uk/2022/06/ev-c ... en-beetle/
Car featured in Electric Road, with the Open Inverter plug, obvs.

Forgot to mention, the DVLA wanted to inspect the car, after I tried to get them to update the V5 again. They concluded I didn't need any further inspections as it's not radically altered, but they again refused to update the V5.

The bit they don't put in their letter is "Under our interpretation of the law".
They try to make it sound like the law is clear on this matter and fail to mention there are conflicting sections which make this utter nonsense.

Nice write up BTW.

https://www.telegraph.co.uk/news/2022/0 ... ax-breaks/ here's the article. They decided against any of the photos they took though

***EDIT***
http://web.archive.org/web/202206111509 ... ax-breaks/
View though web archive to get around paywall

2nd Battery pack is in and running now, ish. It's connected, but not got the BMS readings from it yet, and I want to tweak the mounting a bit, but I now should have 50 to 60 miles range Boot floor doesn't quite sit flat, so I'll need to tweak something, either try and get the modules a little lower in the spare wheel well or put some 5mm ply down, which I can then fasten the metal cover to, once painted.

Bigpie wrote: ↑Mon Jun 13, 2022 12:16 pm 2nd Battery pack is in and running now, ish. It's connected, but not got the BMS readings from it yet, and I want to tweak the mounting a bit, but I now should have 50 to 60 miles range
20220528_180640.jpeg
Boot floor doesn't quite sit flat, so I'll need to tweak something, either try and get the modules a little lower in the spare wheel well or put some 5mm ply down, which I can then fasten the metal cover to, once painted.

Perhaps a little "gentle persuasion" on the wheel well floor?

I'll need a bigger persuader, I only have a little claw hammer, a lump hammer may well do the trick.

Bigpie wrote: ↑Mon Jun 13, 2022 3:25 pm I'll need a bigger persuader, I only have a little claw hammer, a lump hammer may well do the trick.

So you now have an excuse to buy more tools.
I only see positives here.

I was hoping to get more precision tools though, not just the biggest hammer I can find

Any hammer can be precise, what affects it is the proximity of a thumb.

Getting there now with the rear pack. Couldn't quite squeeze the modules inline and still got to finish bolting down the front mount and the top and a few other little jobs. So what next? No idea where I'll be able to fit this monster, it's fairly large, also workout how air conditioning works. It's been a little uncomfortable in this heat.

Did a longer trip today and got a charge on chademo Did some motorway miles and while the car was mostly ok, it was obviously lacking in umph. Would cruise happily at 60 but maintaining 70 up hill wasn't so effortless.

Mart.y hit me with a well timed PM offering a leaf motor so an upgrade is in order. Going to be a tight squeeze.