What?The Environmental Protection Agency, which tests vehicles for emissions and fuel efficiency, determined the Leaf’s official range to be 73 miles on a fully charged battery, considerably less than the 100 miles previously claimed by Nissan.
BruinLEAFer said:What?The Environmental Protection Agency, which tests vehicles for emissions and fuel efficiency, determined the Leaf’s official range to be 73 miles on a fully charged battery, considerably less than the 100 miles previously claimed by Nissan.
BruinLEAFer said:What?The Environmental Protection Agency, which tests vehicles for emissions and fuel efficiency, determined the Leaf’s official range to be 73 miles on a fully charged battery, considerably less than the 100 miles previously claimed by Nissan.
Sort of answering my own question I see that the 2002 Rav4 EV numbers I mentioned are before the 2008 changes. http://www.fueleconomy.gov/ does not seem to have the updated numbers for any of the EVs either. Hard to compare the Leaf epa figures with any other electric at the moment.Spies said:Is the Leaf really less efficient than the Rav4 EV or did the testing change?
Spies said:Is the Leaf really less efficient than the Rav4 EV or did the testing change?
DaveinOlyWA said:Is the ratings based on charger efficency?. Gas mileage is based on engine efficiency. We measure what goes in and measure what we get out and run the numbers.
So this might mean a 73% efficency if going from 99 to 73?
lne937s said:DaveinOlyWA said:Is the ratings based on charger efficency?. Gas mileage is based on engine efficiency. We measure what goes in and measure what we get out and run the numbers.
So this might mean a 73% efficency if going from 99 to 73?
99mpge is based on 33.7kWh equivalent in a gallon of gasoline. The LEAF does not have 33.7kWh of useable battery capacity (although it is likely more than the 24kWh they have been stating)
Chances are the 73 miles of range is lower than others have experienced because EPA tests with climate control on and adds a number to devalue their test results for inefficient driving habits of many people. However, as electric motors are more efficient (presumably effecting the devalue rating), aircon/heating takes a larger portion of energy, and many people may pre-heat/cool on grid power, those ratings may not be very representative of what drivers experience in real life.
Agree about the >24kWh capacity. At a recent DriveTour, a Leaf engineering type (not one of the "Disney ride operators") said he couldn't divulge the total pack capacity to me but put it above 28 less than 30. Interesting about the pack boost. Wouldn't that interfere with the 400VDC QC scheme? Or do you suppose it's a reason why QC has to be done at the factory; cables run the length of the vehicle and pack boost has special electronics?EVDRIVER said:The Leaf has 24 kwh or usable energy, it would never go 100 miles on 19kwh and Nissan would never cycle the pack to 0 if the total were only 24 kwh. I'm betting it's near 30 or and actual 30 kwh, I'm sticking to that prediction. I'm also betting the Leaf pack voltage of 400V is boosted like the Prius and IS NOT the actual pack voltage. After careful inspection of the contactors and packaging they are far too close and not designed for 400V. This makes complete sense for a 10K rpm motor and to eliminate sag and increase efficiency. And the Leaf charger is not that inefficient and contrary to what the misinformed Nissan people say it is behind the back seat not behind the inverter, that's a voltage booster likely. In fact the Leaf parts look identical to the Prius Denso parts and connectors in the Pack. Now I'm way off topic.
Enter your email address to join: