Tesla small drive unit help
Posted: Wed Oct 04, 2023 5:46 pm
Hi, a bit of background.
I have been messing with electronics and electronic vehicles such as skateboards, go-karts and Jeskis for a while and wanted to step up my project to an electric porsche 924.
I bought a front small tesla drive unit from the us and shipped it to south africa, total cost was over $4000 usd. I bought an open inverter board and installed it. Wiring up 12v i can connect to the board on my laptop via wifi and see the interface and stuff, not much of a programmer so not 100% on all this, gona need to find someone to help me.
Changed some parameters i have seen on the web that is required to run it al 50 volts or so, not 100% i got all of them as its so hard to find the info i need on the forums and youtube.
I give the system 12v to turn on, then touch the motor positive wire onto a resister i have connected to the main 50v power source, then connect it directly after precharge is finished. Then I connect the wire that puts it into drive mode to the same 12+ that supply's the board (Note the motor doesnt lock now, not sure if its meant to).
I have a server tester connected to the 3 wires than are for the pedal, the ground, positive and the sense wire, i also tried it on a different pedal and both dont make motor spin, i also tried changing the test values on the web interface and nothing happens.
Im really not sure what i need to do as i cant find any solid info on how to test it bare minimum or a wiring diagram, im really worried that something is wrong with the inverter or similar. I have been saving for this motor for around a year and have started saving for the batteries now but.
Another thing is the current sensors i had a brain fart and broke one leg off the one so i groud it down a bit so i could sonder a wire on and still us it, not sure if the heat killed it and if this would affect the motor turning, ordered 4 new sensors today and will be here in a week or 2
I have been messing with electronics and electronic vehicles such as skateboards, go-karts and Jeskis for a while and wanted to step up my project to an electric porsche 924.
I bought a front small tesla drive unit from the us and shipped it to south africa, total cost was over $4000 usd. I bought an open inverter board and installed it. Wiring up 12v i can connect to the board on my laptop via wifi and see the interface and stuff, not much of a programmer so not 100% on all this, gona need to find someone to help me.
Changed some parameters i have seen on the web that is required to run it al 50 volts or so, not 100% i got all of them as its so hard to find the info i need on the forums and youtube.
I give the system 12v to turn on, then touch the motor positive wire onto a resister i have connected to the main 50v power source, then connect it directly after precharge is finished. Then I connect the wire that puts it into drive mode to the same 12+ that supply's the board (Note the motor doesnt lock now, not sure if its meant to).
I have a server tester connected to the 3 wires than are for the pedal, the ground, positive and the sense wire, i also tried it on a different pedal and both dont make motor spin, i also tried changing the test values on the web interface and nothing happens.
Im really not sure what i need to do as i cant find any solid info on how to test it bare minimum or a wiring diagram, im really worried that something is wrong with the inverter or similar. I have been saving for this motor for around a year and have started saving for the batteries now but.
Another thing is the current sensors i had a brain fart and broke one leg off the one so i groud it down a bit so i could sonder a wire on and still us it, not sure if the heat killed it and if this would affect the motor turning, ordered 4 new sensors today and will be here in a week or 2