Artful Dodger
"Neko no me"
Important contribution by @Ingineer on the Model 3 on-board charger vs. V2G:
Ingineerix | Youtube
"In this short video I review the Model 3 PCS (Power Conversion System) and it's architecture. Lately there has been a lot of news that claimed that Tesla had quietly added V2G (Vehicle to Grid) functionality to Model 3 (and possibly Y). This is based on an Engineer's findings who did a Teardown on the PCS in 2018. Well here I have a PCS also out of a 2018 Model 3. I've also looked at a lot of others, including the stripped down model used on the Standard Range Model 3. So far none of them use synchronous rectification, which would be needed if the unit were capable of reverse operation.
"Also, I regularly study Tesla's software releases, and it would be obvious by looking at the code if they were adding such a capability.
"Now this doesn't mean Tesla isn't going to do this, but as of now, none of the Model 3 PCS units I've looked at have this capability.
"If you have any other questions, please leave them below. I'm happy to answer them!"
"In this short video I review the Model 3 PCS (Power Conversion System) and it's architecture. Lately there has been a lot of news that claimed that Tesla had quietly added V2G (Vehicle to Grid) functionality to Model 3 (and possibly Y). This is based on an Engineer's findings who did a Teardown on the PCS in 2018. Well here I have a PCS also out of a 2018 Model 3. I've also looked at a lot of others, including the stripped down model used on the Standard Range Model 3. So far none of them use synchronous rectification, which would be needed if the unit were capable of reverse operation.
"Also, I regularly study Tesla's software releases, and it would be obvious by looking at the code if they were adding such a capability.
"Now this doesn't mean Tesla isn't going to do this, but as of now, none of the Model 3 PCS units I've looked at have this capability.
"The Main microcontroller is a dual-core TI TMS320F28377D. It has 24 hardware PWM channels. I don't think this is enough for a full V2G-capabile synchronous rectification stage anyway, so if they wanted to add it, it's much more involved.
"These novel inverted DPAK 7 pin power semis are all custom marked. In the PFC stages we have Q1003, Q1004, Q2003, Q2004, Q3001, and Q3002 marked THY30. Also in PFC: Q1005, Q1006, Q2005, Q2006, Q3005, and Q3006 marked SCM65. In the chopper stages: Q1007, Q1008, Q1009, Q1010, Q2007, Q2008, Q2009, Q2010, Q3007, Q3008, Q3009, and Q3010, all marked SiM99 which I think are SiCFETs. Finally, in the output stage we have full-wave bridges formed by D1003-D1006, D2003-D2006, and D3003-D3006, all of which are marked SiD600 which I think are Silicon Carbide Diodes.
"I can't locate ANY of these parts, or even this package anywhere. So I think they are custom for Tesla. If anyone knows, please let me know!
"These novel inverted DPAK 7 pin power semis are all custom marked. In the PFC stages we have Q1003, Q1004, Q2003, Q2004, Q3001, and Q3002 marked THY30. Also in PFC: Q1005, Q1006, Q2005, Q2006, Q3005, and Q3006 marked SCM65. In the chopper stages: Q1007, Q1008, Q1009, Q1010, Q2007, Q2008, Q2009, Q2010, Q3007, Q3008, Q3009, and Q3010, all marked SiM99 which I think are SiCFETs. Finally, in the output stage we have full-wave bridges formed by D1003-D1006, D2003-D2006, and D3003-D3006, all of which are marked SiD600 which I think are Silicon Carbide Diodes.
"I can't locate ANY of these parts, or even this package anywhere. So I think they are custom for Tesla. If anyone knows, please let me know!
"If you have any other questions, please leave them below. I'm happy to answer them!"
If you're not familiar with his previous contributions to analyzing Model 3 power electronics, please visit his Youtube channel (linked at top, above)
@Ingineer already responded to that point in the comments section of his Youtube video:
"If they had, I'd see it in the code. I just looked at the code for 2020.16 today."
Cheers!
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