Quote:
Originally Posted by bbjsw10
I would assume this is from tach pickup showing above certain rpm and tps showing idle position, you could some how use a 555 to make a high false tach signal and tps is already at idle position when EOC-ing. My thoughts anyway I do like the idea though. I would think a latching circuit would be nice for this one push to engage then push again to disengage.
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I like your idea. A DPDT relay could be used to inject the false signals..
It's funny that you mentioned the 555. I was thinking about using the
555 method for tricking the Cruise Control into maintaining a fixed Throttle setting..
The trick would involve using a toggle switch to disconnect the tach signal
from the ECU and feed the 555 output into the ECU..
(Simulating around 2500 RPM).
Then, when the CC was engaged, it would hold the Throttle in place
and never move it, because the 555 is making it look like the RPMs
are staying the same..
If that actually worked, it might be useful in preventing the CC from
instantly applying power for every little hill on the road..
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If I turned the RPM tricker on when going
slow down a steep hill, took my foot off the gas (TPS=10),
What would be the fake RPM range to put me into fuel-cut-off mode?
The reason I would want to do this: To allow me to shift into 'N' and not have
any Engine braking.. And, be able to enter Fuel-cut-off..
Without engine braking, I could get longer & faster coasts..
Plus, I'm still thinking of using a small ICE-Assist motor (Weak-Hybrid)
and no ICE braking would allow for nicer Re-Gen..