Hi folks,
I ran across this article in an Australian magazine, Autospeed:
http://autospeed.com/cms/A_110187/article.html
Quote:
. . . the Honda happily trundles down the highway with a measured air/fuel ratio of 25:1! To anyone with any knowledge of contemporary car tuning, that’s a jaw-dropping figure. In fact, perhaps more than any other readily observable characteristic of the Insight, the 25:1 lean cruise shows the brilliance of Honda’s engineers.
. . .
Trouble is, in standard form, any tiny twitch of the throttle by the driver will also drop the car out of lean cruise.
. . .
Smoothing of a signal can be achieved as easily as using just a resistor and a capacitor. The resistor (as its name suggests) resists the flow of electricity, while the capacitor stores electricity.
. . .
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This is a brilliant solution and though specific to the Insight, a lean-burn vehicle, it should offer a significant improvement in mileage.
Bob Wilson