Let's have an honest top 20 fuel efficiency, seperate EV and HV

i'm sure a mathematician could arrive at some formula to quantify efficiency based on speed.

 

Yet oh so difficult to interpret in the context of mileage champs. Consider what stops at red lights do to MPG (or MPGe).

The proposal of OP to crown EV and HV champs is not going to work.
Consider two PiPs competing by going up and down a hill:

Car 'A' goes up the hill in HV, and down the hill in EV. Bravo! He is the EV champ
Car 'B' goes up the hill in EV, and down the hill in HV. Bravo! He is the HV champ

If the above does not convince you that this competition is flawed, just remember that no one is controlling for EV charges per mile. The person who charges up every 10 miles is sitting pretty no matter how they drive.

Really folks, what is this competition about ?
Least liquid fuel per mile ?
Least source energy per mile ?
Least transmission to wheels energy per mile ?
Something else ??
An MPG(e) competition is pretty much an EV/HV ratio competition.

OP: yes, MPG(e) is ~ miles/33.4 kWh. Just try not to compare 33.4 kWh of energy in a battery to 33.4 kWh of energy in a liquid fuel tank.

 

you know you want one.

 

IMO...if you really want to see how good of hypermiler you are...don't plug in for 500 miles and see how well you can do. Then go post in the Top 20 MPG thread over in the regular Prius area. Those are some scores that will be tough to beat.

My guess is you will just say something similar over there. Here you say it's just a ratio challenge. Over there you would simply say it's just an average speed challenge. Hard to make a truly fair Top 20 whatever way you slice it since we aren't all driving on the same track with the same variables. Correct?

 

I agree on both counts.

By the way, I had my Prius (v)agon at ~ 86 MPG over 300 miles a few weeks ago, but then my wife went on a high speed, 400 mile trip and that was the end of that LOL

 

Dang, that's pretty amazing!

 

You would have been even more impressed if you had seen the rural road conditions. Not pebble stone grade, but much rougher than a good road. I know from patches of good roads that I can reliably hit over 100 MPG on return trips if I P&G.

Then again, everyone can hit over 100 MPG in any Prius if driving is limited to P&G in good weather, good roads, and very few stops.

 

it's actually more difficult to p&g in the pip because the battery tends to hold a higher charge and the software tries to expend it when your trying to glide. it can be a real battle. also you tend to lose your skills because when you do have a charge, you can glide forever, maintaining speed with a tiny bit of battery use.

 

In the Gen3 Prius family Glide is possible up to 45 MPH.

Second, while a PiP can glide at a higher speed that does not mean less energy is used. PiP or Prius, traveling at 60 MPG takes more energy than traveling at 45 MPH. It is primarily a matter of air friction.

 

and you think that couldn't be gamed either ?
speed / route...

 

Sure it could, but I was more thinking of a for fun thread without a top listing in the first post. Some may take it serious but, others could just post up a single shot and not worry about it. I am always amazed at how easily this car can blow past the EPA ratings.