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Old 08-15-2010, 07:22 AM   #59 (permalink)
bwilson4web
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Location: Huntsville, AL
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Quote:
Originally Posted by unixrocks View Post
I just joined the forums after reading this and I dont get what the goal is here.

Is the goal to turn off the DC to DC converter for short periods and run a 14V battery pack?

Does the DC-DC converter constantly pump 14V into the system or will it stop if the battery is providing the 14v?

I *think* I understand what your doing but I am missing a few critical pieces of info about how the DC-DC converter works and when and why the heck if the system runs at 14V they have a 12V battery installed?!?!?!?!
The Prius has half a dozen control computers, electric assisted brakes and steering. The NHW11 also runs daylight running lights. So the background power runs just under 500 W. This is a significant load so using a charged battery instead of taxing the drive system improves road mileage. Overall efficiency is not changed as the battery charge has to come from another source. But as a way to avoid buying gas, it works.

Bob Wilson
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2019 Tesla Model 3 Std. Range Plus - 215 mi EV
2017 BMW i3-REx - 106 mi EV, 88 mi mid-grade
Retired engineer, Huntsville, AL
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