Driveability evaluation for engine management calibration

[摘要] Vehicles are expected to deliver adequate power for the engine size and vehicle class. Theymust also deliver good response to the driver's desired action as well as deliver the lowestpossible 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 asubjective driver prospective. Advanced control systems allow for more accurate control ofthe vehicles response to the drivers demands.The objective of this document was to develop a quantitative driveability evaluation model forengine management calibration. The important aspects of engine management control fordriveability, as well as how they are manipulated to deliver acceptable driveability wereidentified. Test procedures were developed to measure and quantify all these importantfactors. The test procedures can be evaluated for their different sections or for a completedriveability evaluation method.An optimised driveability evaluation method was developed to reduce the driveabilityevaluation time. Verification of the driveability evaluation model did provide different resultsfor a different engine management calibration.

[发布机构] Stellenbosch University