This battery management system provides redundant communication paths because it enables bidirectional communication along daisy-chain loops. The dual channels used in each daisy-chain loop can achieve individual or redundant new battery management systems. Finally, TSLA points out that this system may enable dynamic redundancy within the battery management system, thereby improving the reliability of next-generation battery packs. Furthermore, the system's bidirectional nature can provide assistance in the event of a daisy-chain loop failure. See the main text for details.
According to foreign media reports, TSLA recently unveiled a battery technology. Given that the battery is the sole power source for electric vehicles, a battery system failure could render the vehicle inoperable. Therefore, TSLA felt it necessary to develop a robust and dynamic battery management system.
TSLA's battery patent is a redundant battery management system consisting of a client and a multi-channel, bidirectional, daisy-chained communication loop. TSLA also outlines methods for identifying fault locations within the battery management system.
The company stated that the battery management system may include a host (e.g., a microcontroller for the control system) and a client (a battery management integrated circuit for the battery cells within the control system).
TSLA further discussed the principle of the daisy-chain circuit in the battery management system: the host and each client can communicate and respond to commands using a daisy-chain transmission path circuit. This daisy-chain circuit may include a set of lines that can transmit electrical signals. The daisy-chain circuit can also connect the host interface to each serially connected client interface, thereby enabling sequential communication, and can achieve single-channel or multi-channel communication within the link.
This battery management system provides redundant communication paths because it enables bidirectional communication along daisy-chain loops. The dual channels used in each daisy-chain loop can achieve individual or redundant new battery management systems. The host can achieve communication between clockwise and counterclockwise serial clients, and even if a channel connection failure occurs within a daisy-chain loop, this bidirectional communication ensures that communication between the host and each client remains normal. Furthermore, this redundancy applies to dual channels.
Finally, TSLA points out that the system may enable dynamic redundancy within the battery management system, thereby improving the reliability of next-generation battery packs.
The multi-channel architecture ensures that subsystem malfunctions (spurious data) do not affect the normal operation of auxiliary subsystems within other channels. Furthermore, the system's bidirectional nature provides support in the event of a daisy-chain failure.
