Pneumatic and Thermal State Estimators for Production Engine Control and Diagnostics 980517
Pneumatic and Thermal State Estimator (PSE and TSE) algorithms were implemented in a production speed-density Engine Management System (EMS) to provide engine mass flow, pressure, and temperature estimates for general use by other control, diagnostic, and estimator algorithms.
A fluid-network architecture (see, for example, [1],[2]) was used to significantly reduce development cycle time associated with iterative calibration work, to increase flexibility to engine hardware changes, and to enable the application of Modern Control Theory.
The algorithms and associated development process were applied to a 2.4L DOHC engine. The PSE and TSE met internally-defined performance requirements and, in application, LEV emissions.
Citation: Maloney, P. and Olin, P., "Pneumatic and Thermal State Estimators for Production Engine Control and Diagnostics," SAE Technical Paper 980517, 1998, https://doi.org/10.4271/980517. Download Citation
Author(s):
Peter J. Maloney, Peter M. Olin
Affiliated:
Delphi Energy & Engine Management Systems, Delco Electronics
Pages: 14
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic Engine Control Technologies-PT-73, Electronic Engine Controls 1998: Diagnostics and Controls-SP-1357
Related Topics:
Mathematical models
Low emission vehicles (LEV) and zero emission vehicles (ZEV)
Calibration
Hardware
Emissions
Production
Pressure
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