Browse Publications Technical Papers 2002-01-0849
2002-03-04

Automated EMS Calibration using Objective Driveability Assessment and Computer Aided Optimization Methods 2002-01-0849

Future demands regarding emissions, fuel consumption and driveability lead to complex engine and power train control systems. The calibration of the increasing number of free parameters in the ECU's contradicts the demand for reduced time in the power train development cycle.
This paper will focus on the automatic, unmanned closed loop optimization of driveability quality on a high dynamic engine test bed. The collaboration of three advanced methods will be presented:
  • Objective real time driveability assessment, to predict the expected feelings of the buyers of the car
  • Automatic computer assisted variation of ECU parameters on the basis of statistical methods like design of experiments (DoE). Thus data are measured in an automated process allowing an optimization based on models (e.g. neural networks).
  • A reproducible simulation of a real vehicle behavior, including power train and driver action simulation on a high dynamic engine test bed is used as well as special test runs for the automatic driveability calibration.
Thus by utilizing this driveability model it will be possible, to produce market oriented calibrations by simply changing the target parameters.
The current practice for optimizing driveability through ECU calibration, is an empirical process. It is performed utilizing complete vehicles on the road.
In this paper an improved methodology will be presented. The ECU-parameters will be optimized with regard to the customer specific driveability demands within a traceable process.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Vehicle Driveability Assessment using Neural Networks for Development, Calibration and Quality Tests

2000-01-0702

View Details

TECHNICAL PAPER

Advanced Statistical System Identification in ECU-Development and Optimization

2015-01-2796

View Details

TECHNICAL PAPER

Automated Optimizing Calibration of Engine Driveability on the Dynamic Powertrain Test Bed

2013-01-2588

View Details

X