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Matthew Goodman, Joanna Simon,
... Voice Brush up on Car Care The Knowledge Common Rail Injection Everything you wanted to know about cars ...
2004 - Gale Group | Sunday Times HA GDA
Seungwoo Hong, Jaewook Shin, Jeongwon Sohn, Inseok Park, Myoungho Sunwoo,
... fuel efficiency, a precise control algorithm for the common-rail pressure is a required priority for improving the engine performances. This paper proposes a coordinated common-rail pressure control strategy for passenger car diesel engines ... pump, adjusts the inlet fuel flow for the common rail using a first-order polynomial equation that describes ... flow and the outlet fuel flow for the common rail. The injected fuel flow is used as the ... disturbance. The pressure control valve located on the common rail adjusts the outlet fuel flow of the common ...
Tópico(s): Real-time simulation and control systems
2014 - SAGE Publishing | Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering
W Niklawy, M. Shahin, M I Amin, Ali Elmaihy,
Abstract The high-pressure Common Rail (HPCR) injection system was originally introduced for diesel engines to both reduce pollutant emissions and enhancement of performance. HPCR separates ... other. The high injection pressure generated by the common rail system provides better atomisation and evaporation of fuel ... lowering soot emission. In this paper, a mathematical common rail injection system model has been presented. A Simulink/ ... to have more insight for understanding the overall common rail injection system diesel engine performance under different operating ...
Tópico(s): Biodiesel Production and Applications
2020 - IOP Publishing | IOP Conference Series Materials Science and Engineering
Yun Bai, Qi Lan, Liyun Fan, Xiuzhen Ma, Hong Liu,
High pressure common rail system is the state-of-the art technology for modern diesel engines to achieve energy conservation and emission ... the fuel injection stability of the high pressure common rail system. In this work, a high pressure common rail injector numerical model based on bond graph theory ... of the fuel injection stability for high pressure common rail system, the rank variations of the state matrix ... the oscillating characteristics of the system. High pressure common rail system is a complicated time-variant system with ...
Tópico(s): Hydraulic and Pneumatic Systems
2019 - SAGE Publishing | International Journal of Engine Research
Yun Ke, Chong Yao, Enzhe Song, Quan Dong, Liping Yang,
The fault diagnosis of the common rail injector is an important means to ensure the safe operation of the diesel engine. In order to quickly and accurately identify the fault status of common rail injectors, this paper proposes an intelligent fault diagnosis method for common rail injectors based on Composite Hierarchical Dispersion Entropy (CHDE) ... we use the proposed method to analyze the common rail injector failure data. The results show that the proposed method can not only effectively realize the common rail injector intelligent fault diagnosis but also has a ...
Tópico(s): Spectroscopy and Chemometric Analyses
2021 - Elsevier BV | Digital Signal Processing
Ying Hu, Jianguo Yang, Nao Hu,
The structure and performance of the common-rail system for the marine diesel engine are different from those used for automobile applications, resulting from the larger accumulator volume and the ... the steady-state performance of the high-pressure common-rail fuel injection system designed for a marine engine ... the steady-state performance of the high-pressure common-rail system. Second, the experiments of rail orders and ... comprehensive and detailed model of the high-pressure common-rail system was built to investigate the structural parameters ...
Tópico(s): Vehicle emissions and performance
2020 - SAGE Publishing | International Journal of Engine Research
Guangzhao Yue, Tao Qiu, Hefei Dai, Yan Lei, Ning Zhao,
... of rail pressure is quite important in the common rail fuel system. Generally, the rail pressure control strategy ... feedback control. A lumped parameter model of the common rail fuel system is built. Theoretically, the three main ... is increased. In addition, experiments based on a common rail fuel system test rig are completed. The results show that the fuel efficiency of common rail fuel pump decreases with pump speed, and rail ... reduced and the dynamic control precision of the common rail fuel system increases when the optimized control method ...
Tópico(s): Electric and Hybrid Vehicle Technologies
2018 - SAGE Publishing | Advances in Mechanical Engineering
Marco Coppo, Claudio Dongiovanni, Claudio Negri,
A production common rail-type injector has been investigated via numerical simulation and experimentation. The functioning principle of the injector has been ... through nozzles were written. The connecting pipe between common rail and injector, as well as the injector internal ... Lax-Friedrichs method. The experimental investigation on the common-rail injection system was performed on a test bench ... through the injector coil, oil pressure in the common rail and at the injector inlet, injection rate, needle ...
Tópico(s): Vehicle emissions and performance
2004 - ASM International | Journal of Engineering for Gas Turbines and Power
Kamyar Nikzadfar, Amir H. Shamekhi,
... with mechatronic systems together with the advent of common-rail injection systems, which promotes the flexibility of injection ... hierarchical procedure; in particular, in the case of common-rail diesel engine control, the extent and diversity of ... In this article, the control strategy development of common-rail diesel engine management systems is considered using the ... a road map for the development of a common-rail diesel engine management system is presented.
Tópico(s): Hydraulic and Pneumatic Systems
2014 - SAGE Publishing | Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering
Changhwan Woo, Sanghoon Kook, Evatt R. Hawkes,
... and the influence of intake air temperature and common-rail pressure on ECI combustion. From the experiments, it ... diesel, regardless of the intake air temperature. The common-rail pressure variations at fixed brake power conditions show that the friction loss increases with increasing common-rail pressure, leading to the increased brake specific fuel consumption. This suggests that the common-rail pressure for ECI applications should remain low for ... emissions also exhibit an increasing trend with increasing common-rail pressure although the smoke and NOx levels are ...
Tópico(s): Combustion and flame dynamics
2016 - Elsevier BV | Fuel
H.P. Wang, Dongdong Zheng, Yang Tian,
In this paper modeling and common-rail pressure control of high pressure common rail injection system (HPCRIS) is presented. The proposed mathematical model of high pressure common rail injection system which contains three sub-systems: high pressure pump sub-model, common rail sub-model and injector sub-model is a ...
Tópico(s): Electric and Hybrid Vehicle Technologies
2016 - Elsevier BV | ISA Transactions
Yun Ke, Chong Yao, Enzhe Song, Liping Yang, Dong Quan,
Abstract Aiming at the problem that the common rail injector’s early fault characteristics are very weak and susceptible to random noise and other signal interference, this paper proposes a new common rail injector weak fault diagnosis method based on multipoint ... the weak fault diagnosis and recognition of the common rail injector. Through experimental verification, the proposed method can effectively achieve the weak fault diagnosis of the common rail injector.
Tópico(s): Spectroscopy and Chemometric Analyses
2020 - IOP Publishing | Measurement Science and Technology
Frédéric Boudy, Patrice Seers,
... the injection mass flow rate of a diesel common-rail injection system. Simulations are first performed with ISO 4113 diesel fuel on a four-cylinder common-rail system to evaluate a single and triple injection ... total mass injected and pressure wave in the common-rail system. The fuel's viscosity and bulk modulus ...
Tópico(s): Vehicle emissions and performance
2009 - Elsevier BV | Energy Conversion and Management
Carlo Beatrice, P. Belardini, C. Bertoli, M. G. Lisbona, G. M. Rossi Sebastiano,
... of the electronic control unit of the present common rail (CR) injection system allow the use of multiple sequential injections. Thanks to this feature this advanced common rail system is capable of performing up to five ... the application of a prototype of this advanced common rail system both to a Fiat 1.9 JTD ...
Tópico(s): Catalytic Processes in Materials Science
2002 - SAGE Publishing | International Journal of Engine Research
A. Balluchi, Antonio Bicchi, Emanuele Mazzi, Alberto Sangiovanni‐Vincentelli, Gabriele Serra,
... in automotive control of significant complexity: the new common-rail fuel-injection system for Diesel engines under development ... pump, regulates the fuel flow that supplies the common rail according to the engine operating point (e.g., ... a hybrid model of the Magneti Marelli Powertrain common-rail fuel-injection system for four-cylinder multi-jet ...
Tópico(s): Real-Time Systems Scheduling
2007 - Taylor & Francis | International Journal of Control
Antonio Paolo Carlucci, Antonio Ficarella, Domenico Laforgia,
... biodiesel pilot injection parameters. For this purpose, a common rail diesel research engine was converted to operate in ... was instead sprayed into the cylinder using a common rail high-pressure injection system. During tests, the biodiesel ... producer gas mode. Therefore, the potentialities of the common-rail high-pressure injection system may be developed to ...
Tópico(s): Vehicle emissions and performance
2013 - American Society of Civil Engineers | Journal of Energy Engineering
Wolfgang Boehner, Karsten Hummel,
Common Rail provides additional flexibility for the design and application of a diesel injection system. Contrary to conventional ... pressure generation and injection are decoupled in the common rail system. The injection pressure can be selected independent ... introducing pilot injection or multiple injection. Furthermore the common rail system can replace conventional injection systems without requiring ...
Tópico(s): Advanced Combustion Engine Technologies
1997 - | SAE technical papers on CD-ROM/SAE technical paper series
Leilei Xu, Xue‐Song Bai, Ming Jia, Yong Qian, Xinqi Qiao, Xingcai Lü,
... a specially designed experiment rig equipped with a common rail injection system. It is well known that the ... A new injection model was developed for the common rail injection system, which was capable of simulating the ... experiments and experiments found in the literature for common rail injection system. The new injection model was applied ...
Tópico(s): Vehicle emissions and performance
2018 - Elsevier BV | Applied Energy
М. Г. Шатров, V. I Mal'chuk, A. Yu. Dunin, Ivan G. Shishlov, V. V. Sinyavski,
... fuel injection rate shaping of the Diesel engine common rail fuel system with common rail injectors and solenoid control is proposed. The method ... applied to the control solenoid valve of the common rail injectors for variation of the injection rate shape. ... characteristic of the effective cross-section of the common rail fuel system injector holes was investigated. The diameter ...
Tópico(s): Engine and Fuel Emissions
2018 - Vinča Institute of Nuclear Sciences | Thermal Science
Ziman Wang, Xiaoyu Dai, Fushui Liu, Yanfei Li, Han Wu, Chongming Wang, Yikai Li,
... the acceleration effect of compressed air under low common rail pressure, drum spray tip (single or double drums) ... by the catastrophic breakup of air bubbles under common rail pressure, and mushroom-drum and central jet under fuel-free condition. Low common rail pressure allowed more time for the air bubbles ... fuel left by the previous injection under high common rail pressure significantly suppressed the formation of mushroom tip.
Tópico(s): Combustion and flame dynamics
2018 - Elsevier BV | Fuel
Enzhe Song, Yun Ke, Chong Yao, Quan Dong, Liping Yang,
The normal operation of high-pressure common rail injector is one of the important prerequisites for the healthy and reliable operation of diesel engines. Therefore, this paper studies the high- ... this paper chooses VMD to adaptively decompose the common rail fuel pressure wave. The biggest difficulty in VMD ... Then, a fault diagnosis scheme for high-pressure common rail injector based on IFOA-VMD and HDE is ...
Tópico(s): Advanced Chemical Sensor Technologies
2019 - Multidisciplinary Digital Publishing Institute | Entropy
Ahmed I. EL‐Seesy, Hidenori Kosaka, Hamdy Hassan, Susumu Sato,
... the combustion and exhaust emission characteristics of a common rail diesel engine and rapid compression-expansion machine (RCEM). ... H20D and H40D mixtures utilizing ultrasonication system. The common rail diesel engine was operated under different loads and ... specific fuel consumption by about 15% and the common rail engine soot emission was decreased by 60% whereas ...
Tópico(s): Catalytic Processes in Materials Science
2019 - Elsevier BV | Energy Conversion and Management
Yunpeng Wei, Liyun Fan, Yuelin Wu, Yuanqi Gu, Jing Xu, Hongzi Fei,
... stability, a prediction model of the high-pressure common rail system was established. The effects of common rail pressure, control pulse width and engine speed on ... trend to a great extent. The volume of common rail pipe has an effect on the fluctuation degree ...
Tópico(s): Vehicle Dynamics and Control Systems
2021 - Elsevier BV | Fuel
Yun Ke, Chong Yao, Enzhe Song, Quan Dong, Liping Yang,
Early fault diagnosis of common rail injectors is essential to reduce diesel engine testing and maintenance costs. Therefore, this paper proposes a new common rail injector early fault diagnosis method, which combines the ... effectively identify the early failure state of the common rail injector. Compared with the existing methods, the proposed ...
Tópico(s): Advanced Combustion Engine Technologies
2021 - Elsevier BV | Digital Signal Processing
Sundararajan Rajkumar, Sudarshan Gowrishankar,
... emission characteristics of split-injection and multiple-injection common-rail direct-injection diesel engines. In this model, the ... of the multi-zone model to multiple-injection common-rail direct-injection engines. Hence, the model is used ... injections on the combustion and emission characteristics of common-rail direct-injection diesel engines. The parametric investigations show ...
Tópico(s): Catalytic Processes in Materials Science
2014 - SAGE Publishing | Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering
Alessandro Ferrari, Emanuele Salvo,
... injected flow-rate and the rail pressure for common rail injection systems. An analytical transfer function has been ... model of the overall hydraulic layout of a common rail system. The predicted transfer function has been compared, ... pressure regulator, in the hydraulic model of the common rail circuit. Finally, the time histories of the rail ...
Tópico(s): Vehicle emissions and performance
2016 - SAGE Publishing | International Journal of Engine Research
Haoping Wang, Yang Tian, Dong Zheng,
... paper presents an ESO-based iPI control for common rail pressure.First, a detailed mathematical model of High Pressure Common Rail Injection System (HPCRIS) is built.The mathematical model ...
Tópico(s): Advanced Sensor and Control Systems
2016 - | Studies in Informatics and Control
... in the existing diesel (compression ignition) engines, the common rail high-pressure injection system has limitations in reducing ... requirements that cannot be satisfied by the current common rail diesel compression ignition engine in terms of efficiency and exhaust gas using DME common rail compression ignition engine. Based on the results of this study on diesel and DME engines under common rail conditions, the changes in engine performance and emission ...
Tópico(s): Catalytic Processes in Materials Science
2019 - Multidisciplinary Digital Publishing Institute | Applied Sciences
A. Balluchi, Antonio Bicchi, Emanuele Mazzi, Alberto Sangiovanni‐Vincentelli, Gabriele Serra,
... in automotive control of significant complexity: the new common rail fuel injection system for Diesel engines, currently under ... pump, regulates the fuel flow that supplies the common rail according to the engine operating point. The standard ... a hybrid model of the Magneti Marelli Powertrain common–rail fuel–injection system for four-cylinder multi–jet ...
Tópico(s): Real-time simulation and control systems
2006 - Springer Science+Business Media | Lecture notes in computer science
Ling Wang, Guo-Xiu Li, Chun-Long Xu, Xing Xi, Xiao-Jun Wu, Shu-Ping Sun,
... fuel injector to build a model of the common-rail injector, including the control valve, the solenoid valve, ... effect of the system and structure parameters including common-rail pressure, injection pulse width, inlet and outlet hole ... in the control chamber and injection rate. The common-rail pressure, injection pulse width and the geometric parameters ...
Tópico(s): Biodiesel Production and Applications
2018 - ASM International | Journal of Engineering for Gas Turbines and Power