Improvement of the Simulation Model for High Accuracy Leaf Spring Test Bench by Implementing Fuzzy Logic

2019 ◽  
pp. 1335-1342 ◽  
Author(s):  
Elif Üstünışık ◽  
Ahmet Kırlı ◽  
İsmail O. Er ◽  
Yunus E. Erginsoy
Keyword(s):  
Fuzzy Logic ◽  
Simulation Model ◽  
Test Bench ◽  
High Accuracy ◽  
Leaf Spring

The Benchmarking of ESP Hardware-in-the-Loop Test Bench with Data from Real Vehicle

2012 ◽  
Vol 482-484 ◽  
pp. 478-482
Author(s):  
Jian Hua Li ◽  
Chuan Xue Song ◽  
Li Qiang Jin
Keyword(s):  
Simulation Model ◽  
Test Bench ◽  
High Accuracy ◽  
Great Benefit ◽  
Hardware In The Loop ◽  
Experiment Data ◽  
Development Period ◽  
The One ◽  
Real Vehicle

The development of ESP Hardware-In-the-Loop(HIL) test bench has brought great benefit to the development of ESP system and could shorten the development period. Therefore the accuracy of ESP HIL bench is crucial to the development of ESP system. The adjustment of vehicle parameters is an important section in the simulation model and it decides the accuracy of the bench to a great extent. The vehicle parameters from actual measurements are limited, so it is very difficult to obtain a high-accuracy simulation model. The article offers a way to solve this problem. With CANoe from Vector Corp., the experiment data were gathered from actual vehicle and returned to simulation model through CAN telecommunication. This will enable the simulation model to operate in the same mode of actual vehicle. By contrasting the output of response, the vehicle parameters will be adjusted step by step, until the response of simulation model is same as the one of actual vehicle.

IDENTIFICATION OF INTERHARMONICS BASED ON WAVELET PACKET TRANSFORM

2021 ◽  
Vol 3 (1) ◽  
pp. 031-036
Author(s):  
S. A. GOROVOY ◽  
◽  
V. I. SKOROKHODOV ◽  
D. I. PLOTNIKOV ◽  
◽  
...  
Keyword(s):  
Fourier Transform ◽  
Simulation Model ◽  
Frequency Domain ◽  
Time Domain ◽  
Wavelet Packet ◽  
High Accuracy ◽  
Wavelet Packet Transform ◽  
Mathematical Apparatus ◽  
Nonlinear Load ◽  
The Time Domain

This paper deals with the analysis of interharmonics, which are due to the presence of a nonlinear load. The tool for the analysis was a mathematical apparatus - wavelet packet transform. Which has a number of advantages over the traditional Fourier transform. A simulation model was developed in Simulink to simulate a non-stationary non-sinusoidal mode. The use of the wavelet packet transform will allow to determine the mode parameters with high accuracy from the obtained wavelet coefficients. It also makes it possible to obtain information, both in the frequency domain of the signal and in the time domain.

Experiment and Simulation for Grid-Connected Photovoltaic Micro-Invereter

2013 ◽  
Vol 448-453 ◽  
pp. 1480-1485
Author(s):  
Li Jie Yin ◽  
Ya Zhen ◽  
Qi Li Fan
Keyword(s):  
Simulation Model ◽  
Control Algorithm ◽  
Single Phase ◽  
High Accuracy ◽  
Control Parameters ◽  
Working Process ◽  
Topology Structure ◽  
Matlab Software ◽  
Fast Speed ◽  
Micro Inverter

A modeling method of single-phase grid-connected photovoltaic micro-inverter is presented in this paper,which depends on the topology structure of fly-back converter. Simulation of the micro-inverter is performed using Matlab software, which has the virtues of high accuracy and fast speed. Prototype experiment results show that the simulation model can be a true reflection of the working process of a micro-inverter, and could be used to verify the control algorithm and select the control parameters.

Fuzzy logic-based modeling and analysis of surface roughness, electrostatic charge, and material removal rate in ultrahigh precision diamond turning of rigid contact lens polymer

2019 ◽  
pp. 089270571985060
Author(s):  
Muhammad Mukhtar Liman ◽  
Khaled Abou-El-Hossein ◽  
Lukman Niyi Abdulkadir
Keyword(s):  
Surface Roughness ◽  
Fuzzy Logic ◽  
Material Removal Rate ◽  
Contact Lens ◽  
Material Removal ◽  
Removal Rate ◽  
Electrostatic Charge ◽  
High Accuracy ◽  
Diamond Turning ◽  
Optical Manufacturing

Due to increasing demand for high accuracy and high-quality surface finish in optical industry, contact lens manufacturing requires reliable models for predicting surface roughness (Ra) which plays a very important role in the optical manufacturing industry. In this study, a Nanoform 250 ultra-grind turning machine was used for machining, while cutting speed, feed rate, and the depth of cut (with values selected to cover a wide range based on the literature) were considered as the machining parameters for a diamond turned rigid polymethylmethacrylate (PMMA) contact lens polymer. Turning experiments were designed and conducted according to Box–Behnken design which is a response surface methodology technique. Fuzzy logic-based artificial intelligence method was employed to develop an electrostatic charge (ESC), Ra, and material removal rate (MRR) prediction models. The accuracy and predictive ability of the fuzzy logic model was then judged by considering an average percentage error between experimental values and fuzzy logic predictions. Further, a comparative evaluation of experiments and fuzzy logic approach showed that the average errors of ESC, Ra, and MRR using fuzzy logic system were in tandem with experimental results. Hence, the developed fuzzy logic rules can be effectively utilized to predict the ESC, Ra, and MRR of a rigid PMMA contact lens polymers in automated optical manufacturing environments for high accuracy and computational cost.

465Q Gasoline Engine Turbocharger Matching and Performance Calculation

2012 ◽  
Vol 500 ◽  
pp. 223-229 ◽  
Author(s):  
Peng Qi Zhang ◽  
Dong Hui Zhao ◽  
Peng Wu ◽  
Yin Yan Wang
Keyword(s):  
Simulation Model ◽  
Fuel Consumption ◽  
Test Bench ◽  
Gasoline Engine ◽  
Test Results ◽  
Simulation Error ◽  
And Performance ◽  
Set Up ◽  
Performance Calculation ◽  
Supercharged Engine

This article take the Dongan 465Q non-supercharged engine as the research object, the simulation model is built by GT-POWER and the corresponding test bench is set up. The simulation error is less than 3%, which indicates that the parameters of this model is correct, and can be used for further study of the gasoline engine. The supercharger, Garrett GT12, is selected by the matching calculation. The non-supercharged 465Q engine is modified as a turbocharged engine. The test results show that the power and the fuel consumption of the turbocharged engine is improved obviously, whose power is increased by 48% and fuel consumption is reduced by 4%.

scholarly journals A High Accuracy Fuzzy Logic Based Map Matching Algorithm for Road Transport

2006 ◽  
Vol 10 (3) ◽  
pp. 103-115 ◽  
Author(s):  
Mohammed A. Quddus ◽  
Robert B. Noland ◽  
Washington Y. Ochieng
Keyword(s):  
Fuzzy Logic ◽  
Road Transport ◽  
High Accuracy ◽  
Map Matching ◽  
Matching Algorithm

scholarly journals Simulation of the natural draft for test bench measurements

2019 ◽  
Vol 10 (1) ◽  
pp. 73-83
Author(s):  
Dennis Krüger ◽  
Volker Lenz ◽  
Tobias Ulbricht
Keyword(s):  
Environmental Conditions ◽  
Test Bench ◽  
Physical Simulation ◽  
Pressure Sensors ◽  
High Accuracy ◽  
Natural Draft ◽  
Single Room ◽  
Mode Of Operation ◽  
The Cost ◽  
Calibration Parameters

AbstractSingle room heaters are usually type tested with constant draft and are allowed under these conditions. However, the mode of operation of the user’s firing usually deviates significantly from these conditions of approval, since these are operated in most cases by natural draft and not by constant draft. Since the repeatability of natural draft is hardly given due to the changing environmental conditions, a simulation has been developed, which can simulate the natural draft with high accuracy. Thus, it is basically possible to replicate the natural draft with constant environmental conditions and to use it for test bench measurements. It is a purely physical simulation that does not require any calibration parameters. Chimney geometry and environmental boundary conditions, such as the outside temperature, can be chosen freely. In addition, the cost of the necessary hardware is very low, since the system only needs cheap thermocouples, pressure sensors, and a small USB module for data acquisition.

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