...Nikhil Ravi; Hsien-Hsin Liao; Adam F. Jungkunz; Chen-Fang Chang; Han Ho Song; J. Christian Gerdes Homogeneous charge compression ignition (HCCI) is currently being pursued as a cleaner and more efficient alternative to conventional engine strategies. Control of the load and phasing of combustion...

...Ahmed Al-Durra; Marcello Canova; Stephen Yurkovich Cylinder pressure is one of the most important parameters characterizing the combustion process in an internal combustion engine. The recent developments in engine control technologies suggest the use of cylinder pressure as a feedback signal...

... existing results as special cases. In case the time delay is a differentiable time-varying function satisfying some bounding relations, we establish a new parametrized LMI characterization for PPD feedback stabilization. The theoretical developments are illustrated on examples of combustion in rocket motor...

... a balanced mass-elastic system capable of spin. Conventional cyclic combustion takes place in the cylinder causing resonant motion of the disks. A two-part control strategy is proposed and tested by simulation to address the multi-objectives of maximum mechanical power transfer, minimum peak generator torque...

...Mahdi Shahbakhti; Charles Robert Koch Incorporating homogeneous charge compression ignition (HCCI) into combustion engines for better fuel economy and lower emission requires understanding the dynamics influencing the combustion timing in HCCI engines. A control oriented model to dynamically...

... domestically available alternative diesel fuel. However, biodiesel utilization presents several challenges, including decreased fuel energy density and increased emissions of smog-generating nitrogen oxides ( NO x ) . These negative aspects can likely be mitigated via closed-loop combustion control provided...

...Ingemar Andersson; Lars Eriksson A model for the thermal part of an ionization signal is presented that connects the ionization current to cylinder pressure and temperature in a spark ignited internal combustion engine. One strength of the model is that, after calibration, it has only two free...

... adopted for the design and fitting of new products. 13 08 2007 14 08 2008 08 12 2008 clutches combustion design engineering fuel economy internal combustion engines interpolation robust control torque convertors torque converter lock-up clutch slip control system...

...Chia-Jui Chiang; Anna G. Stefanopoulou The goal of this paper is to identify the dominant factors that should be included in a control oriented model in order to predict the start of combustion in a homogeneous charge compression ignition (HCCI) engine. Qualitative and quantitative information...

...Marcello Canova; Shawn Midlam-Mohler; Yann Guezennec; Giorgio Rizzoni Homogeneous charge compression ignition (HCCI) is a promising concept for internal combustion engines that can considerably decrease NO x and soot emissions in part-load operations without penalizing fuel consumption. The HCCI...

... the discrete event process (one combustion cycle) to continuous changes of AFR information, due to mixing dynamics in the exhaust manifold. To scale the AFR at one for stoichiometric mixture ( λ st = 1 ) , we divide the ratio by the value of theoretical stoichiometric coefficient for gasoline...

...Kwee-Yan Teh; Christopher F. Edwards Entropy generation due to combustion destroys as much as a third of the theoretical maximum work that could have been extracted from the fuel supplied to an engine. Yet, there is no fundamental study in the literature that addresses the question of how...

... production, and running SI engines lean increases the global efficiency. Both these technologies have a deep impact not only on the air mass inside the cylinder, but also on the composition of the enclosed gas. Intake manifold pressure and temperature coupled to a combustion equation permit an estimate...

...Peter C. Hung; Robert J. Kee; George W. Irwin; Seán F. McLoone Thermocouples are one of the most popular devices for temperature measurement due to their robustness, ease of manufacture and installation, and low cost. However, when used in the harsh environment found in combustion systems...

... of the Exhaust Gas Recirculation (EGR) valve, the exhaust Rebreathing Lift (RBL), and the fueling rate on the state of charge in the cylinder at intake valve closing. An Arrhenius integral is then used to model the start of combustion, θ soc . A series of simple algebraic relations that captures the combustion...

... combustion engine (experimental investiagation of the fundamental test apparatus with opposed piston) ,” Trans. Jpn. Soc. Mech. Eng., Ser. B , 56 , 3167 – 3172 . Hu , Y. , and Hibi , A. , 1991 , “ Hydraulic free piston internal combustion engine (theoretical investiagation of the opposed...

... Systems and Control Division July 6, 2000. Associate Editor: S. Shivashankar. 06 July 2000 internal combustion engines flow control compensation combustion stability Cylinder to cylinder torque imbalance in internal combustion engines can have many different causes. Fuel...