Thanks Matt for this update!!

Hello Team!

Long time no here from. Hope everyone is doing well. I have NOT made any progress on the DC inverter : :cry: . I have spent at least a 1000 dollars on MOSFETS and Diodes trying to Modify a Open Revolt to at least 700 Amps and have failed Miserably. I have been just blowing up MOSFETS ...

The inverter igbts are controlled by the intelligent gate drives in the inverter all you need to do to switch them is to pull the appropriate inverter pins to ground, all that’s required to do this is a low side switching most fet/transitor controlled by a pwm pin on the microcontroller, but you ...

Alright..... I think I'm ready to finish this project......

GE11 did you get your hardware setup and spinning a motor?

I've got my truck moving on a simple arduino right now.... so no current limiting or fancy feedback loop control. I need to do some more testing to be sure im not going to blow ...

Hello,

Any new updates? EV8 have you had time for good schematic?

I just had a thought.... Would the Open ReVolt cougar DC controller logic boards be used for this? I was trying to figure out if they could work for Damien's IGBT DC controller boards, but he ended up using something else. Something tells me that it would just be a matter of interfacing the logic ...

Thanks EV8 ... I can understand your so busy having to volunteer time for us..

thanks

Hello EV8,

Will you be available to answer more questions?

Hey,

So the electircal interface from the Tens 3.2 board and the Prius inverter is there some sort of electrical buffer or translator or something that goes between the Prius inverter and the Tensy board? Im still moving forward..

thanks

Oh Ok..

Ahh I get it...

What Temp Gauge are you using? Ill just get me one of those...

Hey does anyone know the PN or where I can get the Mating connector to the 32 Pin connector on the Gen 2 Prius inverter?


thanks!

Hey got another Question:

What Temperature device are you writing to here that needs a PWM signal?

temp_pwm = map (filtered_temp, 0,160, 0, 254);
analogWrite (PWM_6, temp_pwm);

Ok thanks!!

Oh my Gen 2 inverter came in the mail yesterday.. I bought 2 of them!

So.. Looking at the Map function it looks like each Phase measures from 0 to 400 amps after the Map... When you sum these all up. It seems the Granularity of current measurement will be on the order of multiple amps... correct?

Makes sense ...

Ahh!

OK I see it now...


current_limit=map(filtered_throttle,0,254,cl_low,cl_high);

analog_current1 = analogRead (CR1);
amps_current1 = map(analog_current1,9,1023,0,400);

analog_current2 = analogRead (CR2);
amps_current2 = map(analog_current2,9,1023,0,400);

analog_current3 = analogRead (CR3 ...

Are these 4 Sensors read on 4 separate ADC pins?

No, you don’t need that, I had one and there is code there that is commented out for using one but you don’t need it, basically I was using it as a known value while developing the code to make sure I was getting good data from the built in current sensors

Ahh.. So you are using the Built in ...

Hey man!

Do I need to Buy one of these for the controller??

https://www.ebay.com/itm/274670520327?_trkparms=amclksrc%3DITM%26aid%3D777008%26algo%3DPERSONAL.TOPIC%26ao%3D1%26asc%3D20201018205123%26meid%3Dd8afd5a774984feea8dc612df7b25ef8%26pid%3D101286%26rk%3D1%26rkt%3D1%26mehot%3Dnone%26itm ...

Ev8 wrote: ↑Sun Nov 14, 2021 10:23 pm Yes that’s right, teensy 3.2 I will try in coming weeks draw up a schematic for the board, most likely To happen Christmas week though as I have no time off until then

Thank you so much!! greatly appreciated

Here is what I will order...Is this correct?

https://www.ebay.com/itm/184467442349?_trkparms=amclksrc%3DITM%26aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3D6f1dd9a20e8e47658be3b05760d58edc%26pid%3D100675%26rk%3D7%26rkt%3D15%26sd%3D255017488690%26itm%3D184467442349%26pmt ...

I think I am starting to understand this... I ordered 4 of these Gen 2 inverters.. Will you help me with the connections to the Processor board?

thanks again for your help!

Ok another question...

what does this map function do? I have seen it several places..Why do we need it?

hv_analog = analogRead (HV1);
hv_volts = map (hv_analog, 70,1023, 0, 975);


Then same question for this filter function

Ok But here is where I am confused... Why does it take an active oscillating signal like a PWM signal to drive a Relay or Solenoid coil? Why cant it ne just drive with a straight High or a low?

I guess that whats confusing me..

Sorry for all the questions...and thanks for the help