Closed Loop system for hho control and monitoring

So, what is the purpose of this blog?

 

The hho world is vast and expanding in all directions. Improvements been made to all aspects of hho systems and development being done every day. Moreover hho gained some mainstream and academic recognition. One question remains: why HHO isn’t been widely adapted? There are many possible explanations:

• Complicated system – car complexity increase.
• Highly explosive gas flow.
• Above all others: Inconsistent results.

Let examine what we have so far:

1) HHO generator – Our baby.

This is the most explored part and the heart of the hho system. There are many cells in many shapes kind and colors. some notable examples: hho “water filter” generator and dry cell.






We Even prepared detailed guide how create one on your own – DIY HHO generator
They all produce hho, more or less effectively and consume some amount of energy.
The question isn’t whether the hho cell produce gas, but if the whole car system became more efficient as a result of hho system addition? and this isn’t a simple question at all. Sure, we can measure the MPG to see, but it’s far from enough. We don’t have the tools to adjust and fine tune the system because we can’t measure the important parameters.

2) HHO EFIE – The litle shiny box the supose to solve our problems.

Indeed the car’s on-board computer didn’t designed for hho and as a result it constantly try to sabotage our efforts. When hho system in work, it injects pure oxygen to engine’s intake and as a result more oxygen measured by oxygen sensor at output. The ECU (computer) try to compensate by increasing gas flow and ruin our attempt to go lean.




So we have The EFIE magic box to “trick” the ECU and change oxygen readings. This is a Must, Unless one tries replace / reprogram the ECU, and is is hard and unnecessary. Every serious system builder must build or get and EFIE per oxygen sensor if he hopes for mileage gain.




These are the minimum required components for working hho system.
But what we don’t (usually) have is a method to adjust hho cell for more / less gas and adjust efie for more / less oxygen readings. The cell can go hot and change the effectiveness of the whole process. Other things might change during a ride, and we must monitor the system somehow to always be on the optimal working point.

The proposed solution: HHO control and monitoring box

What we need Is some kind of system to make decisions for cell pwm input according to engine readings instead of manual EFIE and manual pwm. The Unit will receive raw data from ECU and sensors and calculate the right amount of gas and oxygen reading needed for maximum efficiency under current hardware (hho cell).
Reference system schematic:



The system Will have the following characteristics:

• The unit will receive data from oxygen sensor and car computer
• The unit will calculate the amount of fuel needed for the engine at each moment
• The unit will calculate the optimal pwm current for hho system  
• The unit will have driver input/output
• The unit will be generic and work with any car / system combination.

I started to make plans, will use the new blog to report progress / state. stay tuned.