COMPUTERIZED DATA ACQUISITION SYSTEM

The system described relates to tests of the performance and durability of diesel engines. The system is designed as a tool for the test operator to enable him to get better data faster. In front of him and adjacent to throttle and dynamometer controls is an Operator's Panel mounting a group of push-button switches, indicator lamps and projection type digital readouts. Any parameter of the test may be displayed on the right-hand side of the panel by pressing the Display button and three Number buttons to define the data point of interest. At the start of an engine test, the operator sets the speed control potentiometer to give the required wide open throttle speed, he then types into the computer the "On Cycle" command. From then on throughout the control period set point adjustments are made, at 1/10 second intervals, as a required percentage of both speed and throttle. Repeatability of the cycle over a 1000-hour certification run is excellent and adjustments due to engine improvement or deterioration can be easily accomplished. The techniques of carrying out total Real-Time control and the calibration of gaseous emissions analyzers have been developed and the software written.

• Corporate Authors:

  Intl Symp on Autom of Engine & Emiss Test, 2nd

  London,   England 
• Authors:
  • Henderson, J
• Publication Date: 1973

Media Info

• Features: References;
• Pagination: 26 p.
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Diagnostic tests; Diesel engine exhaust gases; Diesel engines; Emissions testing; Exhaust gases; Instrumentation; Locomotives; Measuring instruments; Reliability; Tests; Vehicle maintenance
• Old TRIS Terms: Diesel engine diagnostics; Diesel engine maintenance
• Subject Areas: Maintenance and Preservation; Railroads;

Filing Info

• Accession Number: 00127609
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Proc Paper
• Files: TRIS
• Created Date: Dec 16 1976 12:00AM