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1. (WO2001002708) METHOD FOR CONTROLLING A COMBUSTION ENGINE, AND ARRANGEMENT FOR SUCH A METHOD

Pub. No.:    WO/2001/002708    International Application No.:    PCT/SE2000/001224
Publication Date: Fri Jan 12 00:59:59 CET 2001 International Filing Date: Wed Jun 14 01:59:59 CEST 2000
IPC: F02B 75/12
F02D 41/02
F02D 41/30
Applicants: VOLVO PERSONVAGNAR AB
LITORELL, Martin
LINDSTRÖM, Johan
NORÉN, Bengt
Inventors: LITORELL, Martin
LINDSTRÖM, Johan
NORÉN, Bengt
Title: METHOD FOR CONTROLLING A COMBUSTION ENGINE, AND ARRANGEMENT FOR SUCH A METHOD
Abstract:
The invention relates to a method for control of a combustion engine (1) of the DI engine type, which method comprises generation of an air/fuel mixture to the respective cylinders (3) of the engine (1), and switch between at least a first mode of operation and a second mode of operation of the engine (1) by means of adjustment of the air/fuel mixture which is supplied to the engine (1) and the progress in time for the injection of said mixture. The invention is characterized in that said switch of mode of operation is initiated in connection with operation of the engine (1) with an air/fuel mixture which is adjusted in such manner that correct operation of the engine (1) is allowed in both said modes of operation during said switch. The invention also relates to an arrangement for such a control. By means of the invention, an improved control is provided between, for example, a stratified and a homogeneous mode of operation in a DI engine (1), wherein a stable combustion in the engine (1) and an improved comfort for the passengers can be achieved.