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Technical Paper

Quantification of Linear Approximation Error for Model Predictive Control of Spark Ignited Turbocharged Engines

2019-08-15
2019-24-0014
Modern turbocharged spark-ignition engines are being equipped with an increasing number of control actuators to simultaneously meet fuel economy, emissions and performance targets. The response time variations between a given set of engine control actuators tends to be significant during transients and necessitate highly complex actuator scheduling routines. Model Predictive Control (MPC) algorithms have the potential to significantly reduce calibration and control tuning efforts as compared to current methodologies that are designed around integration of multiple single-input single-output sub-system controllers. MPC systems simultaneously generate all actuator responses by using a combination of current engine conditions and optimization of a control-oriented plant model. To achieve real-time control the engine model and optimization processes must be computationally efficient without sacrificing effectiveness.
Standard

Polyamide Type 6-6, Plastic Moldings and Extrusions

2019-06-13
CURRENT
AMS3617F
This specification covers one type of nylon thermoplastic resin in the form of moldings and extrusions. These products have been used typically for parts requiring high strength and resistance to aircraft fuels and lubricants up to 120 degrees C (248 degrees F), but usage is not limited to such applications.
Standard

Cable, Power, Electrical, Portable General Specification For

2019-06-07
CURRENT
AS5756B
This specification covers 600 V heavy duty, portable, power, single and multiconductor, electrical cable for severe flexing service (see detail specifications for voltage limitations). The AS5756 insulation system has been used in aerospace ground power applications using 115/200 V (phase to neutral) at 400 Hz AC. Verification of the suitability of this product for use in other electrical system configurations (600 V, etc.) is the responsibility of the user.
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