Engine idle speed control using actuator saturation

Author

Herman, Paul ; Franchek, Matthew A.

Author_Institution

Sch. of Mech. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

8

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

192

Lastpage

199

Abstract

Presented in this paper is the design and experimental validation of a saturating engine idle speed controller for a Ford V-8 fuel injected engine. The nonmeasurable external torque disturbance perturbing engine speed is delivered from the power steering pump. The performance specification is an allowable engine speed tolerance of 140 r/min about a desired set speed of 600 r/min. The controlled input is a voltage to the bypass air valve (BPAV) which regulates the air ingested into the engine. The BPAV voltage available for engine speed regulation is bounded by 0.8 V. A frequency domain controller design methodology is used to design the controller The performance objective is satisfied using saturation control during large engine speed transients. During steady-state operation, the controlled input is not saturated

Keywords

actuators; control nonlinearities; control system synthesis; frequency-domain synthesis; internal combustion engines; velocity control; 0.8 V; BPAV; Ford V-8 fuel injected engine; actuator saturation; bypass air valve; engine speed tolerance; frequency domain controller design methodology; large engine speed transients; nonmeasurable external torque disturbance; power steering pump; saturating engine idle speed controller; Actuators; Design methodology; Engines; Frequency domain analysis; Fuels; Power steering; Torque; Valves; Velocity control; Voltage control;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.817704

Filename

817704