A Diesel Engine Management System Strategy for Transient Engine Operation
Paper in proceedings, 2013

A strategy for diesel engine management systems has been introduced and evaluated. The strategy calculates set points for engine management system controllable quantities with an aim to minimize fuel consumption for a given engine speed and requested torque profile, while keeping accumulated emissions below given limits. The strategy is based on existing methodology for steady-state engine operation, but extended to handle transient effects in the engine caused by dynamics in the air system. The strategy has been evaluated using a simulation model of a diesel engine system. The model estimates fuel consumption together with NOX and soot emissions for a transient simulation cycle depending on set points in the engine management system for boost pressure, oxygen fraction in the intake manifold, and injection timing. For the transient simulation scenario used in this paper and with given limits on accumulated emissions, the strategy has been shown to decrease fuel consumption with up to 0.7% compared to a strategy that is based only on steady-state engine operation.

Diesel engines

Transient

Engine management

Optimization

Author

Markus Grahn

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Signal Processing

Krister Johansson

Volvo Cars

Tomas McKelvey

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Signal Processing

7th IFAC Symposium on Advances in Automotive Control

1474-6670 (ISSN)

Vol. 7 1 1-6

Subject Categories

Other Mechanical Engineering

Control Engineering

Signal Processing

Driving Forces

Sustainable development

Areas of Advance

Transport

Energy

DOI

10.3182/20130904-4-JP-2042.00068

ISBN

9783902823434

More information

Latest update

11/20/2018