After getting through the safety inspection. With one advisory, one of the rear wheels is almost at the minimum tread depth.

A have already driven 200 km. I love that my lite electric car is back on the road. I really missed it.

Had some issues with the code that I modified on the BMS.
The SOC ...

there are 3 smaller contractors under the big ones.



and there are 2 precharge resistors in there as well.

I don't know how there are controlled. assume via CAN

The pins were changed to 1 and 3.

https://github.com/jsphuebner/esp32-web-interface/commit/d70ac98126517cdf868122c24b3e96b11195abb7

Probably to line up with the Voltlog CanLite hardware.

https://github.com/voltlog/CanLite/blob/main/Schematic-CanLite-revD.pdf

Your board does not have a pin 3 ...

are you sure that the uart is on pins 16 and 17 ?

After fixing the problem with my inverter tripping https://openinverter.org/forum/viewtopic.php?t=6234

I have been chipping away at the endless list of little things.

Zombie is running the speedometer, but the cluster also has a Energiemeter (SOC) and a Econometer(power).

The board that I made ...

Maybe a power supply problem for the dropping out?

if you are using different hardware? are the uart pin mapped / coded to the right ones?

I got an adapter to put air pressure in to the brake fluid reservoir.

Put 0,5 to 1 bar of pressure in the reservoir. And than one by one open the bleed nippels.

Make sure you don't push all of the fluid out of the reservoir. If you do, you can start all over again. :?


I suppose you have to ...

After finding that the overcurrent error could be one of the 3 inputs to the NAND gate if the pulse is short enough.

I soldered the scope probe to the track between the NAND gate output and the TIM1_BKIN input on the STM32.

red=current sensor yellow=NAND
Pus on BKIN.png

Zoomed
Pus on BKIN_zoom ...

Did some more testing today.

Measured the current sensor signals in the car. Did not do this before because, its difficult to measure the signals because the PCB is in a awkward place. Attached two small wires to the scope probe so that I can solder the in place.

20250426_085404.jpg

I_L2_2.png ...

Could not leave it like that.

Took the PCB out again and put the 10k resistor back. Got 1 trip in 5 launches.

put the 1.2k back in and got 1 trip in 10 launches.

So it not completely fixed but this is the problem area.

Good news slightly bad news.

IT IS FIXED :mrgreen: but I am not 100% on the solution.

I have been a bad scientist and changed 2 variables between tests :o

replaced the 10k pullup with 1.2k to get ~max 4mA as the datasheet from the comparator suggests(4mA only when overcurrent is active).
and ...

♫The sun is shining and scope is out♫ 8-)

Went out for testing today. Tested every phase with the current clamp.

no trip
20171201_281727.png
trip
20171201_281813.png


So this is definitely not a problem with the OI software it seems to have perfect control over the phase currents. This also ...

Did some testing in the garage because the weather is not compatible with driving with the hood up and a scope in there.

Set the throtcur to 0.5 and the I can go full throttle and slowly accelerate and then break before smashing in to the work bench.

20171128_835458.png

So throtcur at 0.5 at ...

Will check with the scope. Put the throtcur to .5 or so.

Finally got the car back together. After fixing the stuck contractors and a BMS issue.

Before that i got the chip bead ferrite installed on the inverter board. Went for the MMZ1608S202ATD25 from TDK.
MMZ1608S202ATD25.JPG

After some initial testing it looked to good to be true so I soldered a ...

Have one of the single phase MG chargers in my Saxo project (ZS10BC6600A).

Have done some testing with integration with Zombie. Did this the lazy way by changing the existing files for the outlander charger.

Also changed and improved the DBC file. The MG_VZ charger.txt is the DBC just change the ...

So took the inverter apart. Luckily I did not need to drain the cooling system.

There seems to be quite a lot of switch ringing on the current waveform. 150mV equates to 45A

20250321_191727.jpg

Red : current sensor signal Yellow : is ch3 PWM (for timing)

20171114_611845.jpg

20171114 ...

Is this occurring with low throttle input or high throttle input?


Mosty with high throttle, but it also happened when carefully backing out of the garage.


First I would lower throtramp. Between 3 and 10. Gives the PI loops more time to settle. Make regenramp < 1

You can also try lowering ...

As my E saxo project is nearing completion. I am doing some test drives. It drives pretty good.

Saxo Project:
https://openinverter.org/forum/viewtopic.php?t=4837

Volvo V60 motor:
https://openinverter.org/forum/viewtopic.php?t=3859

Volvo XC90 inverter:
https://openinverter.org/forum/viewtopic ...

Have the Ibooster installed in my car. Because of my car has drum brakes in the back, I ordered a set of Wilwood 10 psi residual valves. still waiting on Fittings :? . Without the residual valves I have to press the brake pedal to far for my liking. But it brakes well.

sometimes I can hear a click ...

Hi Sander,

The cooling plates are 2mm and the center is 4mm. If I would do this again I'll probably go a bit thicker on the outer plates. But the 3 plates screwed and glued together it's reasonably stiff.

The covers were made out of 1mm steel folded and TIG welded. I only have a TIG welder so MIG ...

Two firsts this post.

First test drive :D Had some inverter trips because I had the 'ocurlim' still set at a 100A. Have it set to 400A for now. A friend of mine has a Volvo V60 hybrid, I want to measure the max motor current on his car and set the 'throtcur' and 'ocurlim' accordingly.

First charge ...

Digging through the electronics modules from the battery, I found the precharge circuit. I found it interesting because it uses PTC thermistors.

20250208_101139.jpg

The PTC's are C1412by TDK rated for 620V and 120ohm. The relay is V23700-C0001-A408 made by TE Connectivity 450V and 20A.

The PTC ...

Same here. Love this stuff, not a lot of people in the netherlands working on/ building electric cars.

Thanks to you guys as well for building this tech in the first place, and helping out.

Yes can confirm this. on 50% no pwm on 30% there is pwm.

Is it normal that when selecting ActuatorTest closed the lock cycles. so lock en than unlock. and after that ActuatorTest unlock does nothing.

this is @ 50% Sorry for the battery warning.