Driveability evaluation for engine management calibration
Date
2007-03
Authors
Momberg, J. J.
Journal Title
Journal ISSN
Volume Title
Publisher
Stellenbosch : University of Stellenbosch
Abstract
Vehicles are expected to deliver adequate power for the engine size and vehicle class. They
must also deliver good response to the driver’s desired action as well as deliver the lowest
possible fuel consumption in all possible conditions and comply with emissions regulations.
The combination of these factors is termed good driveability.
Evaluating driveability is time and cost intensive and is most commonly evaluated from a
subjective driver prospective. Advanced control systems allow for more accurate control of
the vehicles response to the drivers demands.
The objective of this document was to develop a quantitative driveability evaluation model for
engine management calibration. The important aspects of engine management control for
driveability, as well as how they are manipulated to deliver acceptable driveability were
identified. Test procedures were developed to measure and quantify all these important
factors. The test procedures can be evaluated for their different sections or for a complete
driveability evaluation method.
An optimised driveability evaluation method was developed to reduce the driveability
evaluation time. Verification of the driveability evaluation model did provide different results
for a different engine management calibration.
Description
Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2007.
Keywords
Dissertations -- Mechanical engineering, Theses -- Mechanical engineering, Automobile driving, Driveability -- Evaluation