This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of Diesel Engine System with DPF for the European Market
Technical Paper
2007-01-1061
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Nissan Motor has put on the European SUV market a 2.2-L direct-injection diesel engine with a diesel particulate filter (DPF) system that complies with the EURO IV emission regulations. This paper describes the DPF system, cooperative control of a variable geometry turbo (VGT) and exhaust gas recirculation (EGR), and a high-accuracy lambda control adopted for this engine.
In order to achieve a compact DPF, the high-accuracy lambda control was developed to reduce variation in engine-out particulate matter (PM) emissions. Moreover, the accuracy of the technique for predicting the quantity of PM accumulation was improved for reliable detection of the DPF regeneration. Prediction error for PM accumulation increases during transient operation. Control logic was adopted to correct the PM prediction according to lambda fluctuation detected by an observer for lambda at cylinder under transient operating conditions. The observer is corrected lambda sensor output. Corrected coefficient is learned and store in ECU. Thus, improved the accuracy of lambda control.
Recommended Content
Authors
Topic
Citation
Ootake, M., Kondou, T., Ikeda, M., Daigo, M. et al., "Development of Diesel Engine System with DPF for the European Market," SAE Technical Paper 2007-01-1061, 2007, https://doi.org/10.4271/2007-01-1061.Also In
References
- (1) Shirakawa, Takashi et al. “A Study of a Control Method for EGR and Supercharging based on Model Calculations for a Diesel Engine,” Society of Automotive Engineers of Japan 1 4 1999
- Itoyama, Hiroyuki et al. “A Study of a Control Algorithm for Achieving Accurate Control of the Lambda Value and EGR Rate Combined with Good Driveability in Diesel Engines,” FISITA Paper Code: F02V295 2002
- Kitahara, Yasuhisa et al. “Ultra-Clean DI Diesel Engine System Achieved by Combining the Ultra MK Concept with a DPF,” FISITA Paper Code: F02E294 2002