Quote:
Originally Posted by Frank Lee
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Frank gave that link with relation to BMW's electric water pump, but I also noticed that BMW is going semi-alternatorless, i.e. using the alt only when braking. I'm wondering whether that is enough? Imagine cruising for hours, stereo blasting, it's hot plus A/C = high engine temps, so (electric!) water pump is spinning fast. Plus the engine is an I6 or V10, so the ignition is also wanting... All of that is using up a lot of juice, and you're not braking to replenish it. Even the beefed up battery will be weak after a few hours. Maybe there is an emergency mode that turns the alt on when the battery starts feeling bad? I doubt Beemers would have to be plugged in for the night.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is
where you're going, not
how fast.
"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell
[Old] Piwoslaw's Peugeot 307sw modding thread