in the storage folder
and the program will execute. Share your application ideas with an email to
workshops@atechtraining.com and
the best will printed in an upcoming newsletter.ATech Discovery Fuel Trim Program
Some of the most difficult relationships for students to understand are those of oxygen sensors, injector pulse width, air/fuel ratio, lambda, short and long term fuel trim. The ATech Fuel Trim Simulation program is an application of technology to the Discovery teaching method discussed in articles in the ATech AutoTeacher Newsletters. Two techniques that can be used are directed experimentation and directed observation. The application of the program as to student prep requirements is being left up to the instructor. Each instructor should experiment with the program to discover its capabilities and decide how best to apply it.
The program is sequenced from the relationship of only two items, fuel control oxygen sensor signal and injector pulse width, to relationships of seven items. The screens below show the beginning screen and the final screen. A new item is added for each click of the small button located in the lower right corner. Short term and long term fuel trim responses have been slowed to allow easier observation of their relationships.
An application example is to ask the student to observe the activity on the first screen and determine a relationship between the oxygen sensor signal and injector pulse width. This is very difficult because the program is operating at a real time speed. Click the sequence button and the manual air input control appears.
The program as downloaded is a self extracting zip file. After
downloading, double click on the fueltrimlt.exe zip file and you will be asked
for a storage location. Use the default or give another location and the
necessary files will be extracted to the designated location. Double click on
in the storage folder
and the program will execute. Share your application ideas with an email to
workshops@atechtraining.com and
the best will printed in an upcoming newsletter.
Discovery First Presentation Screen
Discovery Final Presentation Screen
Requires minimum screen resolution setting of 1024 X 768. Program's primary construction by Chris Akins, intern from University of Cincinnati Engineering.