Fuzzy Pattern Classification Based Detection of Faulty Electronic Fuel Control (EFC) Valves Used in Diesel Engines
Abstract
:1. Introduction
2. System Identification
2.1. Experimental Set Up
2.2. Frequency Response
2.2.1. Model Structure
2.2.2. Asymptotic Approximation to the Bode Diagram
2.3. Step Response
2.3.1. Recursive Least Squares (RLS) Algorithm
2.4. Transfer Function Estimations
2.4.1. Frequency Domain Method
2.4.2. Time Domain Method
3. Fuzzy Pattern Classification
3.1. Initialization of the Fuzzy Decision System
4. Experimental Results
Serial # | Condition | Error | |
---|---|---|---|
Low A | High A | ||
Valve Type 1 | New | 1.0156 | 0.9048 |
1.0030 | 0.9174 | ||
1.0378 | 0.9229 | ||
1.0396 | 0.8740 | ||
1.0233 | 0.8837 | ||
1.0611 | 0.8788 | ||
1.0634 | 0.8328 | ||
1.0476 | 0.9143 | ||
1.0536 | 0.8498 | ||
1.0249 | 0.9128 | ||
Valve Type 2 | New | 1.0025 | 0.8931 |
0.9742 | 0.8553 | ||
0.9740 | 0.8388 | ||
0.9810 | 0.8046 | ||
0.9746 | 0.8814 | ||
0.9682 | 0.8076 | ||
0.9704 | 0.8168 | ||
0.9704 | 0.8321 | ||
0.9793 | 0.7948 | ||
0.9695 | 0.8158 | ||
Valve Type 1 | Return | 1.8048 | 1.0689 |
1.8048 | 1.0659 | ||
1.6242 | 1.0763 | ||
1.5982 | 1.0706 | ||
1.6573 | 1.1234 | ||
1.6254 | 1.0779 | ||
1.5485 | 1.1019 | ||
1.6291 | 1.0546 | ||
1.7645 | 1.0782 | ||
1.6671 | 1.0934 | ||
Valve Type 2 | Return | 1.2697 | 0.9865 |
1.2176 | 1.0326 | ||
1.3267 | 1.0139 | ||
1.3357 | 1.0078 | ||
1.2477 | 0.9998 | ||
1.2507 | 1.0061 | ||
1.1917 | 1.0025 | ||
1.2510 | 0.9852 | ||
1.2268 | 1.0106 | ||
1.2363 | 0.9862 |
Serial # | Condition | Error | |
---|---|---|---|
Low A | High A | ||
Valve Type 1 New | Good | Good | |
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Valve Type 2 New | Good | Good | |
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Good | Good | ||
Valve Type 1 Return | Severely Malf. | Severely Malf. | |
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Severely Malf. | Severely Malf. | ||
Valve Type 2 Return | Malfunctioned | Malfunctioned | |
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned | ||
Malfunctioned | Malfunctioned |
5. Conclusions
Acknowledgment
Conflicts of Interest
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Tugsal, U.; Anwar, S. Fuzzy Pattern Classification Based Detection of Faulty Electronic Fuel Control (EFC) Valves Used in Diesel Engines. Machines 2014, 2, 99-119. https://doi.org/10.3390/machines2020099
Tugsal U, Anwar S. Fuzzy Pattern Classification Based Detection of Faulty Electronic Fuel Control (EFC) Valves Used in Diesel Engines. Machines. 2014; 2(2):99-119. https://doi.org/10.3390/machines2020099
Chicago/Turabian StyleTugsal, Umut, and Sohel Anwar. 2014. "Fuzzy Pattern Classification Based Detection of Faulty Electronic Fuel Control (EFC) Valves Used in Diesel Engines" Machines 2, no. 2: 99-119. https://doi.org/10.3390/machines2020099