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Old 03-01-2022, 08:48 AM   #60 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,515

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

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

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 52.48 mpg (US)
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Making hybrid stop/start even stoppier!

Quote:
Originally Posted by savefuel View Post
I'd like a system where the driver cuts the engine but the restart is automatic (eg. when hitting the accelerator). As no manufacturer offers this I prefer hybrids or do it manually on my ICE.
It's been a long time since I owned my 2000 Honda Insight hybrid or my 2004 Prius, but I added a manual kill switch to both.

With the Insight, the automatic stop/start system remained functional... but I almost ALWAYS stopped the engine well before the computer would have, and at higher road speeds.



Man, I miss that car! Amazingly efficient.

The Prius kill switch turned out to be more useful than I was expecting:



It was essentially just an "EV mode" switch (which was present from the factory in the Prius in other countries outside of Canada/US).

The factory programming for the Prius stop/start was far better than Insight's at stopping the engine when not needed. So I thought at first the manual over-ride EV switch wouldn't be much of an efficiency advantage, but it turned out I used it a lot. Mostly because the Prius wouldn't shut the engine off unless the car had completed at least one full stop (among other conditions) after start-up.



Man, I miss that car.
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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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The Following 3 Users Say Thank You to MetroMPG For This Useful Post:
Istas (03-02-2022), savefuel (03-01-2022), Xist (03-04-2022)