Tesla HW3 -> HW4 replacement thoughts

☑️ Tesla HW3 -> HW4 replacement thoughts

  • There was a fire in the earnings call because of the replacement of HW3 and HW4
  • As you may know, there were many stories that HW4, which is currently used as HW, could not be replaced with MCU and assy module structures 1:1.
  • In fact, I remember Elon once saying that it is difficult to upload atom -> Ryzen related to MCU, not AIHW
  • If you upgrade APHW to AI4 (probably a long time later, it takes time to increase the number of HW4 parameters and decide that the limit is reached in taking the model to HW3. At least a year’s time is needed), I think only the AIHW part will be developed separately for retrofit
  • In addition, the HW4 is different from the HW3 not only in the inference part but also the camera. Will you replace the camera? Because this part will definitely have a big impact on the performance, if you look at the camera resolution, the resolution of the side, the B pillar, and the back side have been slightly increased, but the front side has been improved to 1.2M -> 5.4M
  • I remember that the number of shooting frames was higher even if the resolution was not high, but I think this part is also a critical performance factor for autonomous driving.

Conclusion: If we proceed with HW3->HW4 retrofit, I think AIHW inference computer is likely to be made as a separate kit (even if the PCB board is used as it is) and I think the camera resolution needs to be adjusted, especially the front camera needs to be replaced.

I asked Grok to draw it… LOL The board… It’s as big as a big ㅍ

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