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DFCO is implemented very differently on my two main drivers, FWIW. My 2002 Nissan Sentra SE-R had to be >2500 rpm to enter DFCO. My 2006 Scion xB only has to be >1500 rpm. In effect, the Scion enters DFCO at any speed >35 mph in top gear, while the SE-R only did it >65 mph in top gear. To add insult to injury, once the SE-R was in open loop, it took 4 minutes of engine-on time for it to re-enter closed loop again, negating any benefits from entering DFCO in the first place.
The xB, OTOH, is a DFCO sweetheart. Exiting DFCO, or EOC, it happily resumes closed loop operation immediately.
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Darrell
Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
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