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Joined 5 months ago
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Cake day: June 25th, 2024

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  • The screen is required for the FMVSS standard mandating rear view cameras. The jump in part price from that to touch is less than the amount saved by not having to tool up all the knobs and buttons, paying someone to run wires for all of them, paying someone to assemble all of the fiddly bits, and paying someone to install them in addition to the cost of already installing the screen that would eliminate all the other cost if it were the only input.








  • Could the regeneration be putting out a higher current than what the batteries on the subway train can handle? Not very likely, but I guess that’s a possibility.

    Or if the trains are running on an electrified rail and don’t actually carry much battery capacity themselves so regenerative braking fills that small battery and then dumps the rest back to the grid?

    I don’t particularly feel that either of those situations are likely to be accurate, but I guess someone could have done something weird in the design.