THE CALIBRATION OF A HIGH ACCURACY DYNAMOMETER USING THE EXTENDED KALMAN FILTER--A HYBRID COMPUTER STUDY
Recent advances in road-vehicle fuel management systems have produced a requirement for improved precision in chassis dynamometer test procedures. An accurate simulation of road-load characteristics is necessary to produce repeatable measurements of fuel economy and exhaust emissions for approval purposes. The use of sophisticated digital control systems in a modern dynamometer can assist in achieving the required accuracy. The Kalman filter has long been recognised as a useful tool in the design and synthesis of digital control systems. An extension of the ordinary Kalman filter enables optimal estimates of the state and parameters of a noisy dynamic system to be made from a mathematical model, and noisy measurements. A feasibility study using a hybrid computer describes how the technique can be applied to the calibration of a chassis dynamometer.
-
Supplemental Notes:
- ISATA 84, "In Pursuit of Technical Excellence". Proceedings Volume 1. International Symposium on Automotive Technology and Automation with particular reference to Vehicle Management Systems and Flexible Manufacturing Systems, Milan, Italy 24-28 September 1984.
-
Corporate Authors:
Automotive Automotion Limited
42 Lloyd Park Avenue
Croydon CRO 5SB, Surrey, EnglandAlfa Romeo Auto SpA
Milan, Italy -
Authors:
- Jenkins, E G
- Conference:
- Publication Date: 1984
Media Info
- Features: Appendices; Figures; References;
- Pagination: p. 977-999
Subject/Index Terms
- TRT Terms: Accuracy; Calibration; Digital computers; Dynamometers; Exhaust gases; Fuel conservation; Mathematical models
- Uncontrolled Terms: Electromagnatic filters
- Old TRIS Terms: Digital systems
- Subject Areas: Energy; Safety and Human Factors;
Filing Info
- Accession Number: 00399933
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: ISATA 84056, HS-038 473
- Files: HSL, USDOT
- Created Date: Oct 31 1985 12:00AM