• Welcome to The Truck Stop! We see you haven't REGISTERED yet.

    Your truck knowledge is missing!
    • Registration is FREE , all we need is your birthday and email. (We don't share ANY data with ANYONE)
    • We have tons of knowledge here for your diesel truck!
    • Post your own topics and reply to existing threads to help others out!
    • NO ADS! The site is fully functional and ad free!
    CLICK HERE TO REGISTER!

    Problems registering? Click here to contact us!

    Already registered, but need a PASSWORD RESET? CLICK HERE TO RESET YOUR PASSWORD!

Remote mounted OPTIC SENSOR???

Burning oil

Burning oil

LeroyDiesel.com
Vendor
Messages
10,306
Reaction score
1,958
Location
Houston
SO, I've had this idea for a few years, but can't seem to get the theory/process sorted.
The idea is a remote mount a optic sensor (OS). I was going to drive the tone wheel via a mechanical tach drive like the Hummers use. The problem is how to insure the engine actually advances and retards because the remote OS is not attached to the IP.

The biggest reason for remote mounting was for those that want to run WVO.

My proto type remote OS would not have to look through the WVO, the OS would be looking through air!

Anyway thought I would post this up for you guys to brainstorm.
 
Last edited:
No it would'int be easier or cheaper, but thats not what this post is for. Maybe someone can figue out a way to sink up the remote optic sensor and IP mounted steper motor?
 
Sometimes more annoyances come with the mech solution. Sometimes it is just the challenge of just making it work with what you have.


The mind is kind of thinking . . . .

What I remember, the tone ring for the OS has a uniformly gap ring, correct? Possibly a wide slot for cylinder 1?

Many tone rings use a proximity sensor as the signal pickup. CPS, transmission shaft sensors are examples.


You might be able to adapt a proximity sensor to replace the OS.
Issues:
finding a sensor that will withstand Diesel and WVO at operating temperatures
converting the signal to mirror the output of the OS
getting a reliable signal from the sensor

Advantages;
wide selection of sensors available
Relies on changes in magnetic field not light transmission

There are many industrial proximity sensors that might work. They come in a variety of sizes, voltages, output types, chemical resistances. Omron, P&H, A&B are industrial prox suppliers.

Next steps:
Find someone with a oscilloscope to get information on the OS signal profile, voltages, duration of signals, etc
Search for a proximity sensor that might fit the size, chemical, signal needs.



Just an idea, a though "outside the box"
 
Fail.

Memory fails me again. crap, damm old age.


Tone ring goes the wrong direction and probably not enough room to mount an industrial prox the other way.

But . . .
 
bison said:
Me thinks its easier and cheaperdert to bolt a mech IP on for those few people that want to run WVO,..i would ;)
Click to expand...

Beat me to it... Remote mount in trashcan. :hihi:

A different sensor in the pump that has to be adjusted on a pump calibration stand to give the proper timing of the pump.

It may be a better idea to make biodiesel out of the WVO and avoid the fuel switching and other temperature issues WVO gives you. Biodiesel gives you enough issues as it is, but, none for the optic sensor.
 
OK humor me guys. I did'int want this to be a DB2 vs DS4 compairison. As you probaly know I have converted several to a DB2, but for the sake of this post Im after the knowlege on how to make a remote OS work.

99.9% of DS4 owners that would consider running WVO would not convert to a DB2. IMO WVO is much easier and does not require the use of hazardous material like Methonol or Lye.
There would be a very big market for this as we know 94-2000 had DS4, thats alot of potential sales.
 
Leroy,How many people owning a 6.5 you think have access to or the inclination to run waste vegetable oil??
Me thinks that market ain't that big as you think.
 
Well, nobody with a DS4. Because you can't, but the WVO usage is huge. If WVO could be opened up to the DS4 I think it would have a big market. JMHO.
 
Not just waste vegetable oil but waste motor oil and waste tranny fluid, and waste hydraulic oil. There's a lot of things the optical sensor doesn't like. Maybe change the ecm program to use a magnetic signal the same as the crankshaft position sensor?????
 
I'm not sure how much of a future there is in WVO or waste oil to be honest. Round these parts it's starting to become a commodity. Colleague of mine who is running WVO is reporting that it is harder to get for free and many places are now locking it up. For the extra work it creates once you start paying for it, surely it will start to lose its allure?

Cheers
Nobby
 
I think the main problem is simply that the encoder disk doesnt just rotate with the cam, it changes position with the stepper motor. Like a phaser system. So the OS is the truth on how the IP actually manipulated the rotation of the cam ring in response to a stepper motor action. The CPS is only going to give you when TDC is and then the computer will blindly command (in a preprogrammed manner under backup mode limitations) the stepper motor to respond if the OS is not there, but it cannot verify that injection was actually advanced. That would be why the sensor would need to be in the IP, which is unfortunate. I'm sure the design had to do with size restraints, getting all the functionality in the same size as a mechanical one essentially.
 
I agree buddy. I even thought about isolating/daming the fuel from the OS, but that would be a major PITA.
 
Leroy there also would be the problem of keeping the remote Optical sensor in sync with the mechanical rotation / speed variances, and as buddy said with the cam ring rotation. I have an oscilloscope and have monitored the signal and think that it would be hard to duplicate as far as being in sync with the actual mechanical moment of the rotor head. When you are talking about timing events in milliseconds that starts to get kind of difficult.

It is possible but I am not sure how cost effective it would be. You would have to design a computer program that would imitate the os based on rotor head speed cam position from the stepper motor and few other variables. I asked a guy I know about what you asked and he said it is possible just probably not cost effective in time and money.
 
Thanks Slim. When the idea hit me I thought it would be doable, but then as with many things once you get your hands on it and try to make it work you run into obsticles.
I knew it would not be an easy thing, but had to share the idea incase I was overlooking something real simple.

Leroy
 
Never stop thinking, :eek:when you do bad thoughts creep in and the little voices start arguing.:D But I almost always win the arguments.
 
When theres a will....
I still think there would be a relatively simple solution, but I am a idiot in electronics and its beyond me.
 
You must log in or register to reply here.
Back
Top