Record number :
2337300
Title of article :
Advanced closed loop combustion control of a LTC diesel engine based on in-cylinder pressure signals
Author/Authors :
Carlucci، نويسنده , , A.P. and Laforgia، نويسنده , , D. and Motz، نويسنده , , S. and Saracino، نويسنده , , Mark R. and Wenzel، نويسنده , , S.P.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
15
From page :
193
To page :
207
Abstract :
The adoption of diesel LTC combustion concepts is widely recognised as a practical way to reduce simultaneously nitric oxides and particulate emission levels from diesel internal combustion engines. However, several challenges have to be faced up when implementing diesel LTC concepts in real application vehicles. In particular, achieving acceptable performance concerning the drivability comfort, in terms of output torque stability and combustion noise during engine dynamic transients, is generally a critical point. One of the most promising solutions to improve the LTC combustion operation lays in the exploitation of closed loop combustion control, based on in-cylinder pressure signals. In this work, the application of an in-cylinder pressure-based closed loop combustion control to a Euro 6-compliant demonstrator vehicle has been developed. The main challenges deriving from the control of the LTC combustion, directly affecting the engine/vehicle performance, have been analysed in detail. In order to overcome these drawbacks, a new control function, integrated into the base closed loop system, has been designed. The performance of the new function have been experimentally tested at the engine test bench. Results showed a significant enhancement of the LTC operation, in terms of both combustion stability and noise reduction during engine transients. The new function was also implemented on a real vehicle, thus proving the potential of the new control concept in realistic operating conditions.
Keywords :
Pollutant reduction , Drivability comfort , noise reduction , Control function , Closed loop combustion control , In-cylinder pressure signal , Euro 6 , Output torque stability , LTC combustion
Journal title :
Energy Conversion and Management
Serial Year :
2014
Link To Document :
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