I am making the conversion of old home made small tractor.
Original engine there was from JAWA 250 motocycle (10hp). Now it's MGR 4NM 40kW (Rav4).
I want to use it for simple low energy task (golf cart with trailer under 750kg). I plan to use MG1 to output 50Hz sinus for standard 3 phase async motors under 7,5kW later and MG2 for MGR to drive rear diferential. My electronics is from Yaris G9200-52031 with small board made by JLCPCB during christmass 2021. I am using 56s LiFePO4 baterry (180V, aliexpress 100Ah cells (measured 80Ah
) conected at Toyota input conector.During last 4 weeks I had time to test it and tune it (a little):
- JLC boards didnt had 10k SMD resistors (they informed me about it, but I didn't remembered it )
- I had always OVERCURRENT error, so i pulled down the base of last transistor before cpu with 270k resistor
- I add 5V 3A step down in inverting configuration to the cap pump (measured under 1V after boot up and not -5V)
- I use ESP8266 after flash transplant (1MB vs. 8MB)
- I transplanted STM32 in MG2 after a short on pins during experimenting (seened raise a small pimple from chip)
And I want to test MG1 now with MGR and i struggle with canbus between MG1 and MG2. I was 50% sucessful in sending SELDIR value, see plot.
I was 0% sucessful with pot value, din_forvard and din_reverse. This is my MG2 configuration, MG1 is the same, but direction is Receive.
Can you help me configure canbus to corectly send, receive a use data by MG1?
So, this are my 2 biggest problems: no spin from MG2 anymore and how to spin MG1(no physical pins).
Thanks.
