Search found 32 matches

by E46Driver
Tue Mar 12, 2024 6:21 pm
Forum: Battery Managment (BMS)
Topic: Interfacing Orion 2 with Thunderstruck EVCC [SOLVED]
Replies: 7
Views: 352

Re: Interfacing Orion 2 with Thunderstruck EVCC [SOLVED]

Glad you got it working! That is a great price or an Orion - even with limited functionality. The EVCC and Orion work well together with this kind of "basic" setup.
by E46Driver
Thu Mar 07, 2024 7:28 pm
Forum: Battery Managment (BMS)
Topic: Interfacing Orion 2 with Thunderstruck EVCC [SOLVED]
Replies: 7
Views: 352

Re: Interfacing Orion 2 with Thunderstruck EVCC [SOLVED]

Yes, the BMS can interrupt the loop. But thats just an emergency situation. What I did was run multiple charge and balance cycles to determine my max pack voltage based on the max voltage of my weakest cell. The Orion will tell you this in the cell monitoring page. Once I was happy with the cell bal...
by E46Driver
Wed Mar 06, 2024 7:56 pm
Forum: Battery Managment (BMS)
Topic: Interfacing Orion 2 with Thunderstruck EVCC [SOLVED]
Replies: 7
Views: 352

Re: Interfacing Orion 2 with Thunderstruck EVCC [SOLVED]

I have an original Orion with older firmware that did not support full EVCC CAN. So perhaps you are facing a similar problem. I eventually got mine working using the EVCC cell loop (as the "Charge enable"). Then set your voltages and current in the EVCC. So with my setup, the EVCC controls...
by E46Driver
Mon Jan 29, 2024 8:00 pm
Forum: Inverters / Motor Controllers
Topic: Idea: simplified inverter firmware
Replies: 14
Views: 8160

Re: Idea: simplified inverter firmware

To offer my thoughts, for however much they're worth: The all-in-one nature of the OI control board is part of what drew me to Open Inverter in the first place. I'd used a simple-as-dirt Soliton for a DC motor conversion project in college, and the idea that I could run a Tesla drive unit with a bo...
by E46Driver
Wed Jan 24, 2024 7:26 pm
Forum: General
Topic: Low temps and our batteries
Replies: 17
Views: 1253

Re: Low temps and our batteries

I'm in a warmer part of Canada. It was -38'C here for the last week, -50'C with the windchill. Doesn't happen often, but, does happen. Personally I think diesel heaters go against the spirit of an ev! Putting a fuel tank back in! But I get the appeal I had one in my camper and the Chinese webasto c...
by E46Driver
Thu Jul 20, 2023 7:14 pm
Forum: Inverters / Motor Controllers
Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
Replies: 114
Views: 23773

Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?

I just saw this thread today and decided to reply. I experienced similar issues when trying to calibrate the throttle. I was not using cruise control, but my symptoms were the same - so perhaps one more thing to review. Also I am on old software Version 5.23R. Details are as follows: Trying to set u...
by E46Driver
Tue Oct 11, 2022 6:02 pm
Forum: General
Topic: Emails and other private messages
Replies: 22
Views: 123247

Re: Emails and other private messages

Good morning/afternoon, Although I try my best to help on the forum I am only a single person and have limited time available and do not have the resources to be able to give 1 to 1 answers, therefore if you would like 1-1 support please see ...web page with support options basically 1/2 HR Skype, ...
by E46Driver
Wed Aug 31, 2022 11:58 pm
Forum: Inverters / Motor Controllers
Topic: Throttle Parameter Questions [SOLVED]
Replies: 2
Views: 835

Re: Throttle Parameter Questions [SOLVED]

Thanks Johu!

Clearly my mind is still in Soliton DC Motor Control mode. Eventually I will get my head wrapped around 3-phase AC!
by E46Driver
Wed Aug 31, 2022 3:44 pm
Forum: Inverters / Motor Controllers
Topic: Throttle Parameter Questions [SOLVED]
Replies: 2
Views: 835

Throttle Parameter Questions [SOLVED]

Hello all, my apologies if I missed this information somewhere. I could not find anything relevant with the search. I am trying to understand the throttle parameters because the readings I am getting do not match my understanding. This is for a Leaf EM57 with Gen2 inverter and Rev3.0 Openinverter bo...
by E46Driver
Wed Jul 20, 2022 10:33 pm
Forum: Inverters / Motor Controllers
Topic: Automation idlespeed Not Working
Replies: 6
Views: 743

Re: Automation idlespeed Not Working

Try this version and report back Hi Johannes, works great (Version 5.23R I see). Thank you for your incredibly quick response!!! Questions: 1. Delay between main contactor close and idle - about 150ms? 2. Ramp-up adjustment from 0 to set idle RPM? 3. Brake interlock missing? More detail: It appears...
by E46Driver
Wed Jul 20, 2022 6:14 pm
Forum: Inverters / Motor Controllers
Topic: Automation idlespeed Not Working
Replies: 6
Views: 743

Re: Automation idlespeed Not Working

It's at code level. Not sure when I broke it. Try starting, then setting idlespeed. Not as a solution, just as a test Hello johu, thanks for the speedy responses! Yes, I did get this to work last night. Should have mentioned it in my post above - but I only did it once and then forgot about it. Was...
by E46Driver
Wed Jul 20, 2022 1:44 pm
Forum: Inverters / Motor Controllers
Topic: Automation idlespeed Not Working
Replies: 6
Views: 743

Re: Automation idlespeed Not Working

Hi johu, it does not go into run mode. Stays in off mode. Also tried no brake. And tried brake applied before ignition. Neither worked. Unfortunate since I'm running the stock automatic transmission and need the idle feature. Anything else I can try? Or would this be something at the code level - be...
by E46Driver
Wed Jul 20, 2022 2:25 am
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Sounds like it should be reliable. I have done the same. Hope to never have to worry about it again!
by E46Driver
Wed Jul 20, 2022 2:20 am
Forum: Inverters / Motor Controllers
Topic: Automation idlespeed Not Working
Replies: 6
Views: 743

Automation idlespeed Not Working

Hey guys I searched around for more information on the idlespeed, but could not find an answer to my problem. 5.14-FOC Firmware Leaf Gen2 Inverter with Rev3 O.I. Board EM57 Motor The system works with idlespeed = -100 (disabled). I can apply power, apply the start signal, and the motor spins happily...
by E46Driver
Tue Jun 28, 2022 6:57 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

I had a similar problem. I went the easy way - I bought a relay with a delay timer on Ali Express and installed it on the control output of the main contactor. Set a delay of 1 second. Now, when an impulse arrives, the relay simply does not turn on due to a delay. Good to know! How long has your se...
by E46Driver
Wed Jun 22, 2022 4:17 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Thanks for scoping. Do you have the newer Leaf board with Mini mainboard? Then you could add some significant capacity between gate and source of the corresponding mosfet. On the V3 mainboard version you could do the same modification as DC switch is also on a mosfet. Not sure about the value, mayb...
by E46Driver
Wed Jun 22, 2022 4:10 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Hm... i think you could put one pullup resistor on each relay channel that would keep it off untill high enough signal would appear. Try experimenting with resistor values. I bet 1k pullup will do the job. Or you can simply use 24Vac relay in a din housing. I tried 10K and 5K. Never went as low as ...
by E46Driver
Fri Jun 17, 2022 4:07 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Some scope shots with only the Leaf board powered. No other connections 1. Power up - Pin 2 on STM32 Pin2 Power Up.jpg 2. Power up - DCSW_OUT OUT_DCSW_10ms.jpg And faster time scale OUT_DCSW_1ms.jpg OK, for the most part, these look normal. With the little relay board now connected. It is on the sam...
by E46Driver
Tue Jun 14, 2022 4:52 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

I think you need an antikickback diode on the Panasonic's coil. Cathode to + and anode to -. Rule of thumb is at least 6x the applied fed voltage as its rating. The kick from it is likely messing up the economizer circuits of its little friends. The pulse occurs before the precharge is engaged, so ...
by E46Driver
Mon Jun 13, 2022 2:17 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

You must put pulldown on the STM chip!!
And it's not pin13 is pin2.
Got it - physical pin 2. GPIO PC13.



Is STM driving MOSFET directly? If so, 10K pulldown directly on pin 2 should solve this. I will try.

But doesn't STM have internal pulldown 30K already?

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by E46Driver
Mon Jun 13, 2022 3:11 am
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Hey joromy, thats interesting. I tried both a 10K pulldown and pullup - but neither worked for me. However, I did that AFTER the ULN chip. Did you install an extra pulldown directly on pin13 BEFORE the ULN??? I have some Arduino development experience, but I am not familiar with the STM32 environmen...
by E46Driver
Thu Jun 09, 2022 5:07 am
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

I had similar behaviour when driving high impedance loads from the uln2003. In my case it was a P-channel mosfet and completely different software (stm32-car). Directly on power on I got like 0.5s pulse, after that everything operates normally. Except the contactor was then welded... when driving a...
by E46Driver
Wed Jun 08, 2022 1:52 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Hi 900, they are not latching. Are you thinking the response time of a latching relay is slower, so the signal "pulse" coming from the control board might not affect them? Or what other advantage would that have? Please elaborate. My first reaction is that a latching relay would be an extr...
by E46Driver
Tue Jun 07, 2022 11:13 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Re: Precharge and Contactor Control [SOLVED]

Thanks for the quick reply arber333. That is very interesting. I do not have any chatter - just a single pulse. And only when ignition initially turned on. Very strange. I will keep trying to solve this before I wire full voltage.
by E46Driver
Tue Jun 07, 2022 10:18 pm
Forum: General
Topic: Precharge and Contactor Control [SOLVED]
Replies: 28
Views: 8210

Precharge and Contactor Control [SOLVED]

Hi everyone. I am using a Leaf Gen 2 board, but I thought this might be more of a general question, so I dropped this in the General category. Firmware that shipped with the board was 5.14 and I have not changed it. I am using the below pictured opto-isolated relay board between my contactors and th...