Hi all,
I am trying to figure out the best way to combine two analog 0-5V signals to output the average of the two combined signals at the same voltage level of 0-5V.
This is a project for a car, specifically a twin turbocharged Mustang.
The factory Ford computer uses a mass air meter that measures incoming engine airflow via a hotwire style meter. Basic operation of the meter is as follows:
The air inlet tube for the engine has a heated wire running across the center of the intake tube. As air flows across the wire it cools the wire, this forces the computer to supply more voltage to maintain the set temperature of the heated wire. The changes in voltage are monitored by the computer which in turn changes fuel injector pulse width, engine timing, etc. for proper engine operation.
As supplied from the factory this engine uses one mass air meter for measuring the incoming air. I am running twin turbos with two engine inlets, consequently, I need to be able to measure the airflow in two tubes simultaneously.
The problem is that the Ford computer needs to see a 0-5V analog signal from one meter.
How do I combine the two signals to generate the average of the two signals at the previously set 0-5V?
I am not sure where to start. My electronics knowledge is very basic but I am not afraid to read and study. Can someone help point me in the right direction?
Thanks in advance!
I am trying to figure out the best way to combine two analog 0-5V signals to output the average of the two combined signals at the same voltage level of 0-5V.
This is a project for a car, specifically a twin turbocharged Mustang.
The factory Ford computer uses a mass air meter that measures incoming engine airflow via a hotwire style meter. Basic operation of the meter is as follows:
The air inlet tube for the engine has a heated wire running across the center of the intake tube. As air flows across the wire it cools the wire, this forces the computer to supply more voltage to maintain the set temperature of the heated wire. The changes in voltage are monitored by the computer which in turn changes fuel injector pulse width, engine timing, etc. for proper engine operation.
As supplied from the factory this engine uses one mass air meter for measuring the incoming air. I am running twin turbos with two engine inlets, consequently, I need to be able to measure the airflow in two tubes simultaneously.
The problem is that the Ford computer needs to see a 0-5V analog signal from one meter.
How do I combine the two signals to generate the average of the two signals at the previously set 0-5V?
I am not sure where to start. My electronics knowledge is very basic but I am not afraid to read and study. Can someone help point me in the right direction?
Thanks in advance!