Re:Flash Memory Wear Killing Older Teslas Due to Excessive D...
by mjevans on Tuesday October 15, 2019 @03:12PM
(#21262473)
As a suggestion for a general re-design to solve this issue...
Cluster the consumable components together. Flash and battery. Attach the storage via iSCSI or something similar, have the car's main computer perform encryption/decryption (rather than trusting a component expected to be swapped).
In the case of a battery swap the bulk contents of the (encrypted) external storage can also be cloned. That can probably happen in the timespan that a battery is topped up to charge, but would be more difficult for automated swaps at refueling points. A home/cloud backup and transferring only the new data might be sufficient.
Cluster the consumable components together. Flash and battery. Attach the storage via iSCSI or something similar, have the car's main computer perform encryption/decryption (rather than trusting a component expected to be swapped).
In the case of a battery swap the bulk contents of the (encrypted) external storage can also be cloned. That can probably happen in the timespan that a battery is topped up to charge, but would be more difficult for automated swaps at refueling points. A home/cloud backup and transferring only the new data might be sufficient.