scholarly journals From Physical Modeling to Real-Time Simulation : Feed back on the use of Modelica in the engine control development toolchain

2011 ◽  
Author(s):  
Zakia Benjelloun-Touimi ◽  
Mongi Ben Gaid ◽  
Julien Bohbot ◽  
Alain Dutoya ◽  
Hassan Hadj-Amor ◽  
...  
Keyword(s):  
Real Time ◽  
Physical Modeling ◽  
Engine Control ◽  
Real Time Simulation ◽  
Time Simulation

New Charging Model Imparting the Valve Timing for Real-Time Simulation

2009 ◽  
Author(s):  
Yuh-Yih Wu ◽  
Bo-Chiuan Chen ◽  
Chieh-Han Wu ◽  
Hsien-Chi Tsai
Keyword(s):  
Real Time ◽  
High Efficiency ◽  
Volumetric Efficiency ◽  
Valve Train ◽  
Valve Lift ◽  
Engine Control ◽  
Valve Timing ◽  
Real Time Simulation ◽  
Engine Model ◽  
Time Simulation

Engine Control Units (ECUs) are developed to manage the variable conditions in an operating engine, such as fuel injection, spark ignition, and valve timing, for achieving the goal of high performance, high efficiency and low emissions. Typically, an engine model is necessary for developing the engine control system. Most of the engine models for engine control are mean value engine model (MVEM) based on empirical volumetric efficiency to calculate the intake air flow rate. This kind of model is not able to simulate the changes of the valve, such as valve lift and valve timing. It can not be used for the engine with variable valve train (VVT). Therefore, a new method, able to inform the valve changing, is applied to adapt the new demand of engine models. The proposed engine model is similar to most current models except the charging system. The charging model is developed by using filling-and-emptying model to simulate the air exchange in the engine, including the intake and exhaust air dynamics. The flow through the valves is calculated according to the pressure drop between the cylinder and the manifold, the flow area of the valve opening and its flow coefficient. The other important feature of the proposed engine model is the capability of real time simulation. The model is verified by experimental volumetric efficiency and engine torque. Finally, a HIL (Hardware in the Loop) simulation is performed to confirm the real time simulation.

Real-time Simulation of Turboprop Engine Control System

2017 ◽  
Vol 34 (2) ◽  
Author(s):  
Hanlin Sheng ◽  
Tianhong Zhang ◽  
Yi Zhang
Keyword(s):  
Control System ◽  
Real Time ◽  
Digital Simulation ◽  
Engine Control ◽  
Control Loop ◽  
Real Time Simulation ◽  
The Real ◽  
Engine Control System ◽  
Time Simulation ◽  
Turboprop Engine

AbstractOn account of the complexity of turboprop engine control system, real-time simulation is the technology, under the prerequisite of maintaining real-time, to effectively reduce development cost, shorten development cycle and avert testing risks. The paper takes RT-LAB as a platform and studies the real-time digital simulation of turboprop engine control system. The architecture, work principles and external interfaces of RT-LAB real-time simulation platform are introduced firstly. Then based on a turboprop engine model, the control laws of propeller control loop and fuel control loop are studied. From that and on the basis of Matlab/Simulink, an integrated controller is designed which can realize the entire process control of the engine from start-up to maximum power till stop. At the end, on the basis of RT-LAB platform, the real-time digital simulation of the designed control system is studied, different regulating plans are tried and more ideal control effects have been obtained.

Real Time Simulation of a VCM Plant

1997 ◽  
Vol 21 (1-2) ◽  
pp. S1111-S1115
Author(s):  
P Lundstrøm
Keyword(s):  
Real Time ◽  
Real Time Simulation ◽  
Time Simulation
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