a Triumph Spitfire
|Introduction||First Models||Sensors||Engine Management Basics|
|gas tank mods||Fuel supply system||My first ECU||F.I. Links - Sources|
|Special Project Wide Band Oxygen Meter||O2/Tach/Vac/Timing Logger|
|Other peoples Triumph F.I. Installations/Projects|
|Special Project Megasquirt - The Quintessential D-I-Y Fuel Injection ECU|
|Building a Custom GT6 Manifold||Whitey's F.I'ed Spit6 Project|
|Building an MGB manifold||Experimental twin bodies on a GT6|
|Building a twin TB MGB manifold||The other half of the story|
Data Logging ...
and old projects revived
a work in process... ...still being edited
First... you'll need some way to log what the vehicle does in real-time if you want to make accurate fuel and ignition mapping adjustments. Many ECU's have a logging feature built in specifically for this purpose. Many do not.
So to this end I've pulled out a series of old electronics projects of mine from way back in the late 70's and early 80's. Wow! this stuff still works! Well.... I'll save that for another page elsewhere. But one recent project, built on those old analog versions, is a programmable micro controller version of those discrete component digital and analog automotive instruments.
Form those projects, I've written a logging program to record the real-time parameters of my latest project needs. Namely Fuel injecting my 1975 Triumph Spitfire. I've now made a major modification to it to read the wide-band O2 meter. The results are the following little ditty.
...preliminary Q & A page for a logger..
The opening screen is just a display of the four tracked parameters. Leave it this way and it's just a display of the parameters.
Click on the little graph icon at the right and the full graph drops down. The graph is startable, stopable, saveable, and recallable. By sliding the vertical dotted line left and right, the display show the values in the top windows for analyzing needed adjustments at those parameters.
The four scales at right match up via the colors. The little square boxes on the scales move up and down with the latest readings.
The original design recorded these parameters via a BASIC Stamp 2 Module (n.f.i) programmable micro-controller. The original O2 meter section was scaled for a cheapo hi/lo O2 sensor. I've now converted it to read the Wide Band O2 meter. I've done it two ways, but still can't decide whether to simply read the analog from the meter and let the Stamp convert it, or read in the serial from the TE5301 display, and simply pass it along through the Stamp to this logger application running on a laptop. Ideas! comments? Yes.... I am planning on releasing versions of this logger program. It's written in VB6 and only uses two API calls for the graph. The Stamp outputs all it's data as serial information, making interfacing very straight forward. Clicking anywhere there is a graph after recalling, moves the dotted line to that point. Where the line falls, the logged data points at that point are displayed in the boxes at the top. Versions of this software, and code (and/or programmed Stamps) may also be available if the interest is there.
Introduction First Models Sensors Engine Management Basics Requirements Sub-systems Tuning Sizing Injectors gas tank mods Fuel supply system My first ECU F.I. Links - Sources Special Project Wide Band Oxygen Meter O2/Tach/Vac/Timing Logger Other peoples Triumph F.I. Installations/Projects Special Project Megasquirt - The Quintessential D-I-Y Fuel Injection ECU Building a Custom GT6 Manifold Whitey's F.I'ed Spit6 Project Building an MGB manifold Experimental twin bodies on a GT6 Building a twin TB MGB manifold The other half of the story
All material copyright© Teglerizer 1996-2008
hits since last reset