Patent
Electronically-controlled late cycle air injection to achieve simultaneous reduction of NOx and particulates emissions from a diesel engine
Ramesh B. Poola,Richard J. Lill,Paul Gottemoller,Keith E. Solomons,Michael Barry Goetzke,Richard Wayne Tupek +5 more
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In this paper, an electronically controlled air injection system implemented in three different embodiments with respect to each cylinder is presented. But the authors do not specify the parameters of the air injection systems, only that the air is supplied through an air solenoid to the air passage.Abstract:
An electronically-controlled air injection system implemented in three different embodiments with respect to each cylinder. A first embodiment includes a T-adapter, an air solenoid, a fuel injector, and a control unit. The T-adapter receives pressurized fuel and pressurized air from an air solenoid, and outputs these to the fuel injector. The air solenoid controls the flow of air to the fuel injector via the control unit. The second embodiment includes a modified fuel injector, an air solenoid, and a control unit. The fuel injector is modified by forming therein an air passage and a communicating sac, wherein the sac communicates with the fuel valve. Compressed air is supplied through an air solenoid to the air passage. The third embodiment includes a modified cylinder head, an air solenoid, and a control unit. Compressed air is supplied through an air solenoid to at least one combustion chamber cylinder port in the cylinder head.read more
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Patent
Multivariable control for an engine
Gregory E. Stewart,Soumitri N. Kolavennu,Francesco Borrelli,Gregory James Hampson,Syed M. Shahed,Tariq Samad,Michael L. Rhodes +6 more
TL;DR: In this paper, a multivariable controller that models the interaction between groups of sensors and groups of actuators during the operation of an engine is proposed to reduce emissions of the engine.
Patent
Coordinated multivariable control of fuel and air in engines
TL;DR: In this paper, a combined fuel and air-side controller adapted to coordinate both the fuel and control of an engine, sensing one or more parameters, and outputting a fuel profile signal for controlling at least part of the fuel side and at least a part of air side of the engine is presented.
Patent
Method and system for using a measure of fueling rate in the air side control of an engine
TL;DR: In this article, a measure of the fueling rate is used in the air side control of an engine to adjust one or more air side parameters to meet the anticipated future air side needs of the engine.
Patent
Configurable automotive controller
TL;DR: In this paper, an engine control unit having a one-time integration of a model predictive control template via a potentially long software process can be made via a calibration dataset connected to the engine control units without incurring the potentially long and laborious software process of implementing the template of other approaches in the related art.
Patent
Using model predictive control to optimize variable trajectories and system control
TL;DR: In this paper, a model predictive control (MPC) model is used to determine an iterative, finite horizon optimization of a system model of the controlled system, in order to generate a manipulated value trajectory as part of a control process.
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Journal ArticleDOI
Engines and nanoparticles: a review
TL;DR: In this article, a new HEI study showed that some low-emission diesel engines emit much higher concentrations of nanoparticles than older designs and other low-EMission designs, which has raised questions about whether nanoparticle (number based) emission standards should be imposed.
Patent
Method to reduce diesel engine exhaust emissions
TL;DR: A combustion air management and emission control system (18) injects supplemental air directly into combustion chambers (14A-14D) of a diesel engine to reduce particulates in exhaust gases being emitted from the engine as discussed by the authors.
Proceedings ArticleDOI