A Diesel Engine Management System Strategy for Transient Engine Operation
Paper i proceeding, 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.

Transient

Optimization

Diesel engines

Engine management

Författare

Markus Grahn

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

Krister Johansson

Volvo

Tomas McKelvey

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Signalbehandling

7th IFAC Symposium on Advances in Automotive Control

1474-6670 (ISSN)

Vol. 7 1 1-6

Ämneskategorier

Annan maskinteknik

Reglerteknik

Signalbehandling

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

DOI

10.3182/20130904-4-JP-2042.00068

ISBN

9783902823434

Mer information

Skapat

2017-10-07