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Old 09-29-2014, 04:22 PM   #5 (permalink)
planetaire
EcoModding Lurker
 
Join Date: Feb 2010
Location: France
Posts: 51

Planetaire - '07 Toyota Prius 2 plug in
90 day: 190.45 mpg (US)
Thanks: 45
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Regen.

Regen is really better than with only the nimh cells because two reasons:

-The total electrical resistance is then only 0.04 ohms because during driving the nimh are // with the A123 (Lifepo4). Usually nimh alone have 0.3 ohms (In summer).
-And you can charge all the cells. If the A123 are not fully charged you can charge several kWh during a slope. With the nimh only 0.4kWh for exemple.

So the nimh don't heat like previously and the A123 stay at a good temperature.
They don't need to be cooled (I don't live in a hot place)

In out of gas mode there is a third interesting reason,
because you can use the B mode at any speed without loosing power in the engine. I often use this so my mechanical brakes are often just for a final stop, less then 20 km/h. In B mode you can have twice the electrical braking power then in D mode. You can mix from D to B mode during braking. Maximum electrical braking (regen) is near 28kW.

(Converting a car from gas to electric is quite impossible here in France, because laws)
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