Dynamic Cylinder Deactivation

[ConnClark]

By not altering the valves opening with the cylinders being deactivated you are going to screw up the ratio the exhaust gasses being fed through the catalytic converter. This device would lead to operating in a permanent lean mode from the catalytic converters point of view. A large number of catalytic converters need alternating cycles of lean and rich mixtures to operate correctly and avoid fowling. (Note some o2 sensors have their lifespan reduced by operating in excessive lean conditions for an extended period of time as well).

How do you intend to address this and still be able to pass an emissions check?

[Christ]

Could be manufactured as a piggy back device that intercepts signals from the ecm and adjusts them according to it's own programming, making it plug and play.

Wouldn't be a first, by any means.

[Heihetech]

I think you have got the very point. DCD CONTROLLER has been designed
to work like what you said. That's the way to do aftermarket retrofitting, the
way to introduce DCD into regular engine driven vehicles.

[Christ]

Awesome. Where's my test unit, "for purposes of evaluation"?

[Heihetech]

ConnClark,

Wideband oxygen sensor will always be operating in excessive lean
conditions, or even in pure air. It is designed like this. Don't worry.

To pass smog check, just switch OFF DCD control, then everything will go
back to it was when DCD has not yet been installed. You may also choose
to physically remove it by reversed "plug and play". DCD Controller can be
bypassed in seconds from its circuit.

Here we may introduce a new term to reflect the feature of DCD Controller
----- “unplug-and-noplay".

[Heihetech]

Originally Posted by deathtrain

I still dont see how this is going to be plug and play or universal.

plug and play is not practical bacause regular vehicles have not designed
DCD Controller interface in advance. So 1 to 3 hours of installation work is
required to hook up the connector into ECU control circuit. Totally there are
some 14 wires to connect for 4-cylinder engine. Then, plug-and-play begins,
and one time installation will last forever.

universal problem ----- This is just like the size of T-shirt, one size can't
fit all the market, but 3 to 5 sizes will fit everyone in the market, becoming
universal. DCD Controllers can be made to fit engines with different number
of cylinders and configurations.

[Heihetech]

Originally Posted by Christ

Awesome. Where's my test unit, "for purposes of evaluation"?

Please wait until the DCD product comes out. But the fitness from your
diesel vehicle will be a problem, in case it's mechanically injected.

[Heihetech]

Originally Posted by Frank Lee

DCD sounds an awful lot like "limp home mode" but that doesn't save any gas...

"limp home mode" is a trouble that everybody don't want it. BUT DCD IS
INTENTIONALLY UNDER CONTROL, is man-made, is what we want. why?
for fuel saving, in case you don't have a better solution like electric-gas
hybrid. Trying is believing. Be sure you ALWAYS turn DCD function ON,
or you don't save any gas.

[user removed]

If you ever get a patent (not a provisional application) the next step will be EPA certification of your device and it must pass all applicable emission tests or anyone who installs one on their car could face serious fines and penalties.

That is exactly what Virginia told the HHO installers.

I noticed how you answered every other question but managed to avoid the one about a patent number.

regards
Mech

[Heihetech]

I didn’t want to avoid the one about DCD patent number, just because
someone has find it out and posted it before I read your message, no
need to repeat the same number, which I still need to find it out.

Because DCD control will not be always on, I think emission certification
could be optional, not a must. Just switch DCD control OFF, everything
will come back to normal. I passed emission test twice like this.