Title: A study on knocking monitoring system for efficient energy management of industrial CRDI engine

Authors: Sung Jin Jang; Jong Wook Jang

Addresses: Department of Computer Engineering, Dong Eui University, Busan 614-714, Korea ' Department of Computer Engineering, Dong Eui University, Busan 614-714, Korea

Abstract: In order to meet the enhancing exhaust gas regulations, we need to solve the industrial CRDI diesel engine's knocking problem which causes environmental pollutions. Knocking is one of the causes that produce exhaust gas as well as serious damage to engines. In case of an industrial vehicle, the existing knocking sensor cannot guarantee the accuracy due to the problem in the working environment. Therefore, this study aims to develop a knocking discrimination emulator for the industrial CRDI engine in order to discriminate knocking and defective cylinder by using crankshaft's angular speed. We have implemented the knocking diagnostic algorithm that enables knocking discrimination and engine balance correction applicable to the ECU exclusively to the common rail engine on the emulator. The development of the emulator has enabled to adjust fuel injection timing and amount of fuel. Thus, this study aims to improve engine efficiency and to reduce emissions.

Keywords: CRDI engines; common fail direct injection; camshaft position sensors; knocking diagnosis; crankshaft position sensor; energy efficiency; knocking determination emulator; knocking simulation; automobile industry; automotive networks; knocking monitoring; industrial engines; exhaust gas regulations; air pollution; crankshaft speed; angular speed; engine balance; fuel injection timing; vehicle emissions.

DOI: 10.1504/IJSNET.2015.071388

International Journal of Sensor Networks, 2015 Vol.19 No.1, pp.11 - 19

Received: 19 Dec 2014
Accepted: 16 Feb 2015

Published online: 24 Aug 2015 *

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