TY - JOUR

T1 - A Trajectory Generation Algorithm for Optimal Consumption in Electromagnetic Actuators

AU - Fabbrini, A.

AU - Garulli, A.

AU - Mercorelli, P.

PY - 2012/7

Y1 - 2012/7

N2 - Camless internal combustion engines offer improvements over traditional engines in terms of torque performance, reduction of emissions, reduction of pumping losses and fuel economy. Theoretically, electromagnetic valve actuators offer the highest potentials for improving efficiency due to their control flexibility. For real applications, however, the valve actuators developed so far suffer from high power consumption and other control problems. One key point is the design of the reference trajectory to be tracked by the closed loop controller. In this brief, a design technique aimed at minimizing power consumption is proposed. A constrained optimization problem is formulated and its solution is approximated by exploiting local flatness and physical properties of the system. The performance of the designed trajectory is validated via an industrial simulator of the valve actuator.

AB - Camless internal combustion engines offer improvements over traditional engines in terms of torque performance, reduction of emissions, reduction of pumping losses and fuel economy. Theoretically, electromagnetic valve actuators offer the highest potentials for improving efficiency due to their control flexibility. For real applications, however, the valve actuators developed so far suffer from high power consumption and other control problems. One key point is the design of the reference trajectory to be tracked by the closed loop controller. In this brief, a design technique aimed at minimizing power consumption is proposed. A constrained optimization problem is formulated and its solution is approximated by exploiting local flatness and physical properties of the system. The performance of the designed trajectory is validated via an industrial simulator of the valve actuator.

KW - Cost function

KW - electromagnetic devices

KW - motion control

KW - optimization

KW - trajectory design

KW - Closed loop controllers

KW - Constrained optimization problems

KW - Control problems

KW - Design technique

KW - Electromagnetic actuators

KW - Electromagnetic devices

KW - Electromagnetic valves

KW - High power consumption

KW - Improving efficiency

KW - Keypoints

KW - Optimal consumption

KW - Pumping loss

KW - Real applications

KW - Reference trajectories

KW - Trajectory designs

KW - Trajectory generation algorithms

KW - Valve actuators

KW - Actuators

KW - Constrained optimization

KW - Cost functions

KW - Design

KW - Fuel economy

KW - Internal combustion engines

KW - Motion control

KW - Optimization

KW - Trajectories

KW - Electromagnets

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84861753838&partnerID=8YFLogxK

U2 - 10.1109/TCST.2011.2159006

DO - 10.1109/TCST.2011.2159006

M3 - Journal articles

VL - 20

SP - 1025

EP - 1032

JO - IEEE Transactions on Control Systems Technology

JF - IEEE Transactions on Control Systems Technology

SN - 1063-6536

IS - 4

M1 - 5936653

ER -