Electrical engineering

Physics

Control engineering

Nonlinear system

Solenoid

Inductance

Electromagnetic coil

Psychotherapist

Mechanics

Displacement (psychology)

Inertia

Damper

Engineering

Magnet

Voltage

Artificial intelligence

Psychology

Control (management)

Solenoid valve

Computer science

Quantum mechanics

Control theory (sociology)

Classical mechanics

Mechanical engineering

Armature (electrical engineering)

Journal of Dynamic Systems Measurement and Control

A nonlinear dynamic model of a high speed direct acting solenoid valve is presented. The valve consists of two subsystems; a proportional solenoid and a spool assembly. These two subsystems are modeled separately. The solenoid is modeled as a nonlinear resistor/inductor combination, with inductance parameters that change with displacement and current. Empirical curve fitting techniques are used to model the magnetic characteristics of the solenoid, enabling both current and magnetic flux to be simulated. The spool assembly is modeled as a spring/mass/damper system. The inertia and damping effects of the armature are incorporated in the spool model. The solenoid model is used to estimate the spool force in order to obtain a suitable damping coefficient value. The model accurately predicts both the dynamic and steady-state response of the valve to voltage inputs. Simulated voltage, current, and displacement results are presented, which agree well with experimental results.

The Modeling and Simulation of a Proportional Solenoid Valve