Dynamical Drag Torque Adaptation for Combustion Engines using High Gain Observer
Sprache des Titels:
Englisch
Original Buchtitel:
SAE world congress 2005
Original Kurzfassung:
Drag torque compensation is a part of the control units
of modern gasoline and diesel engines. To achieve it, a
characteristic drag torque curve as a function of the
engine speed is usually saved in the ECU. Since the
drag torque will not be constant during an engine’s
lifetime, this curve must be adapted. This paper
proposes an approach to adapt the drag torque curve.
The goal is achieved using a high gain observer known
as a Kalman filter. The proposed method combines
detection of drag torque curve errors and adaptation of
the drag torque curve in one step. The effects of variable
geometry turbochargers are included in the overall curve
by an extension of the basic algorithm. The performance
of the method is shown using data and measurements
on a BMW M47D engine. As the measurements confirm,
the proposed method works consistently and correctly.
Sprache der Kurzfassung:
Englisch
Number:
2005-01-0065
Erscheinungsmonat:
4
Erscheinungsjahr:
2005
Anzahl der Seiten:
10
Notiz zur Publikation:
SAE world congress 2005, April 11-14, 2005; Detroit, Michigan, USA
Forschungs-