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View Full Version : In Japan, Prius is king


xcel
04-05-2009, 02:27 PM
http://www.cleanmpg.com/photos/data/2/Japanese_Flag_30x22.jpg The Japan 10-15 fuel economy test cycle is purely a P&G simulation and the Prius rules the roost. (cleanmpg.com/forums/showthread.php?p=198826)

http://www.cleanmpg.com/photos/data/523/2010_Prius-III_Blue_with_17_Wheels_-_Headline.jpgWayne Gerdes – CleanMPG (cleanmpg.com) – April 5, 2009

2010 Toyota Prius-III - Base is rumored to cost $21,000 to $23,000 and achieves 50, 60 or 90 mpg depending on what test cycle it is run on...

Tokyo, Japan – Toyota announced that the Japanese-market version the 2010 Toyota Prius-III has been certified as the best most fuel efficient mass-produced vehicle in the world as measured using the Japanese peculiar 10-15 test cycle. The achievement represents part of TMC's numerous and ongoing efforts to improve fuel efficiency through advanced vehicle development.

The new Prius, scheduled for launch in Japan in mid-May, has a fuel efficiency of 89.4 mpgUS with CO2 emissions of just 61g/km, thus exceeding the upcoming 2010 Japanese emissions standards by over 25%. Under the Japanese new and supposedly more realistic JC08 test cycle, the Prius-III achieved 76.7 mpgUS and CO2 emissions of 71g/km, thus meeting the way out 2015 national mandates.

Emissions of both nitrogen oxides and non-methane hydrocarbons have also been reduced in the new Prius, with levels 75% lower than the 2005 Japanese standards. Under the Japanese government's taxation system for environmentally friendly vehicles, the new Prius is exempt from the automobile weight tax (until April 30, 2012), is exempt from the automobile acquisition tax (until March 31, 2012) and qualifies for a 50% reduction in the automobile tax (until March 31, 2010).

Japan 10-15 test cycle in detail

A closer look at the Japan 10-15 so you understand just how gentle and hypermiling friendly (read P&G ;)) a cycle it is.

http://www.cleanmpg.com/photos/data/2/Japan10-15_Test_Cycle.gif
Japan 10-15

Japan 10 Test Cycle – 135 seconds, .4 miles, a top speed of 26 mph and an average speed of 11 mph.

Japan 15 Test Cycle – 231 seconds, 1.35 miles, a top speed of 42 mph and an average speed of 21.1 mph.

The entire Japan 10-15 test cycle is preceded by a sequence of a non-fuel economy measured 15 minutes of warm-up at 36 mph, an idle test and a 5 minute warm-up at 36 mph.

For the measured 10-15 fuel economy test, a single “non-measured” Japan 15-mode segment with a top speed of 42 mph is proceeded by a fuel economy “measured” test consisting of (3) 10-mode segments followed by a single 15-mode segment. The total cycle takes 892 seconds, is 3.9 miles in total distance with an average speed of just 15.9 mph. This includes the initial “non-measured” 15-mode segment.

The measured portion of the Japan 10—15 test cycle (what the actual fuel economy is based on) lasts 661 seconds over 2.5 miles with an average speed of just 13.6 mph.

Does anyone see the real reason why the Prius-I, -II and -III are currently limited to 41 mph Glides and where the pack SoC must be after the initial warm-up routines are completed ;)

2010 Toyota Prius-III – Fuel Economy Estimates around the world

US (EPA 5-test cycle) - 50 mpgUS combined.
EU (Euro Urban and Extra Urban) - 60.3 mpgUS combined.
JPN (Japan 10-15) - 89.4 mpgUS.

Right Lane Cruiser
04-05-2009, 07:29 PM
I'd love to see what the FFH could achieve on this test. :)

cuchulain
04-05-2009, 11:54 PM
The declerations look slow enough that they are probably glides.

Thanks Wayne

voodoo22
04-07-2009, 07:53 AM
I like these tests as a way to show people what kind of numbers are possible.



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