jonescg's eCRX pre-build thread!

[99t4]

What's the D-sub port for?

 

[jonescg]

What's the D-sub port for?

It's the RS232 port for programming the Rinehart inverter. Keen to do any tuning from the comfort of my driver's seat, and not under the hood.

 

[jonescg]

Just need to get that direction control PCB up on a stand and re-route the HV cables.

 

[jonescg]

A little more progress to report - the stereo has been fitted and it works! Digital radio and bluetooth for the phone.

And today I managed to get the Everything Board working! This serves to prevent drive-off while plugged in and charging, but it also manages BMS decisions (like cut power to the drive, or the chargers for a low or high cell event respectively) and theoretically, charge rate as determined by the control pilot signal. We'll need a battery to charge first before I can know that's working.

I've managed to connect to the PM100DXR to my laptop via RS232, and everything is showing up! There will be some tuning involved and that could take days, weeks or months... Even got a temperature sensor showing some weird numbers.

But the point is, I can see the Accel_V going up and down as I press the pedal, the brake switch goes high and low when I press the brake, the regen-off switch goes high and low when I ground it out... it's all coming up Milhouse.

I reckon there will be some messing around trying to get a baseline for the motor to start to turn, so I'm all ears if anyone has ever tuned a PM100DXR to a Leaf motor.

 

[jonescg]

These little 1 mm wide, 8 mm long slots will make soldering the copper-nickel tabs a whole lot easier, and stronger.

 

[jonescg]

I jury-rigged this 180 V battery to power up the inverter... and it worked!

The Remy HV motor program is a good starting point, but I have a bunch of other stuff to mess with before it behaves itself. Still, turning a wheel for the first time is a solid milestone!