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Air fuel ratio control of spark-igni...

Mehrotra, Rahul.

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Air fuel ratio control of spark-ignition engines using sliding modes.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Air fuel ratio control of spark-ignition engines using sliding modes./
Author:	Mehrotra, Rahul.
Description:	139 p.
Notes:	Adviser: J. Pieper.
Contained By:	Masters Abstracts International37-02.
Subject:	Engineering, Automotive. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ31398
ISBN:	0612313980

Air fuel ratio control of spark-ignition engines using sliding modes.
Mehrotra, Rahul.

Air fuel ratio control of spark-ignition engines using sliding modes. - 139 p.

Adviser: J. Pieper.

Thesis (M.Sc.)--University of Calgary (Canada), 1998.

The sliding mode control method offers a strong potential for future engine control problems, since: it results in a relatively simple control structure; it is robust to model errors; and it can be easily adapted to a wide family of engines.

ISBN: 0612313980Subjects--Topical Terms:

1018477
Engineering, Automotive.

Air fuel ratio control of spark-ignition engines using sliding modes.
LDR:02537nam 2200301 a 45 001 929655
005 20110427
008 110427s1998 eng d
020 $a 0612313980
035 $a (UnM)AAIMQ31398
035 $a AAIMQ31398
040 $a UnM $c UnM
100 1 $a Mehrotra, Rahul. $3 1253143
245 1 0 $a Air fuel ratio control of spark-ignition engines using sliding modes.
300 $a 139 p.
500 $a Adviser: J. Pieper.
500 $a Source: Masters Abstracts International, Volume: 37-02, page: 0681.
502 $a Thesis (M.Sc.)--University of Calgary (Canada), 1998.
520 $a The sliding mode control method offers a strong potential for future engine control problems, since: it results in a relatively simple control structure; it is robust to model errors; and it can be easily adapted to a wide family of engines.
520 $a Demands for high output performance, stringent fuel consumption and emission regulations have become some of the major challenges for engineers in the automotive field, especially control engineers. Precise control of air-fuel ratio during both steady and transient engine operation is the key for better engine performance and reduced exhaust emissions.
520 $a In this thesis, a nonlinear, fuel injected spark-ignition engine numerical model is developed. This physically motivated model includes intake manifold air dynamics, fuel wall-wetting dynamics, load speed effects, crank shaft dynamics and process delays inherent in a four-stroke engines. The developed model is unique in that it incorporates all of the above noted phenomenon. A sliding mode controller is then designed based on a linearized version of the mathematical engine model. The linear model is compared favorably with a non linear model in open loop simulated throttling tests. The speed of the system response is limited due to the delay time from the air-fuel ratio (AFR) metering location to the sensor using a conventional feedback control design. Modern control and estimation theory was used to design a high bandwidth closed-loop AFR controller. The sliding mode controller is robust to rapidly changing throttle maneuvers and disturbances. In order to implement the inherent state feedback control scheme, an optimal state estimator is developed.
590 $a School code: 0026.
650 4 $a Engineering, Automotive. $3 1018477
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0540
690 $a 0548
710 2 0 $a University of Calgary (Canada). $3 1017619
773 0 $t Masters Abstracts International $g 37-02.
790 $a 0026
790 1 0 $a Pieper, J., $e advisor
791 $a M.Sc.
792 $a 1998
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ31398