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Old 06-21-2012, 05:40 PM   #153 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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Quote:
Originally Posted by IamIan View Post
If you turn the switch off you will want to monitor the 12V battery ... in case the system also turns off your DC-DC converter ... with that off you effectively have no alternator function and your 12V battery will go dead eventually.
I've driven my 2000 Insight 5-spd with the IMA switch "off" for ~5000 km, so I can comment on this:
  • The DC-DC converter still works, though it is quirky - it sometimes takes a while to activate after starting the engine.
  • DC-DC function ceases if engine RPM exceeds ~4k, and takes ~30 seconds to resume once RPM falls below that
  • When the DC-DC converter is offline, the 12v battery idiot light comes on in the instrument cluster, so it's easy to know when it's on or off.
Of course, whether this is applies to other owners depends on whether Honda's programming/logic is the same across all years/revisions and that mine represents normal functioning. May not be!



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On Monday evening, I'm giving a short presentation at the Ottawa EV group's (EVCO) meeting about my experience with the U.F.O.'s battery pack. Should be of general interest to the members with EV's & hybrids, especially the other 3 or 4 members with gen. 1 Insights.
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Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
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Ecodriving test: Manual vs. automatic transmission MPG showdown



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IamIan (06-21-2012)