new MPG testing- public comment

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#11

01-12-2006, 04:01 PM

foo monkey

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Posts: 251

Re: new MPG testing- public comment

Quote:

Originally Posted by kdhspyder

Consider this statement from the Proposal:

Hybrid numbers will come down more because they work best when driven conservatively in mild temperatures that don't tax their batteries or require air conditioning.

From which scientific study did this come? Hybrids are basically ICE vehicles and as such are subject to the same laws of physics as other ICE vehicles. Without supporting data for the above statement I'll consider it hearsay at best.

I can't site you a study, but anecdotally, this is true. Cold temperatures and rough driving affect the MPG of a hybrid more so than a conventional ICE. In my Prius, I lose about 5MPG, for every 10 degrees. In my wife's Passat, it's more like two or three degrees.

#12

01-12-2006, 08:38 PM

kdhspyder

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Re: new MPG testing- public comment

I am open to learning so I'd love to see if there is any such study or even a simulation and explanation.. The cold weather brings the ICE Hybrid closer to it's ICE-only sibling because the ICE is running more often? They are both primarliy ICE vehicles then and the benefits of the Hybrid system are negated somewhat?