Modeling and Simulation of Vehicular Power Systems - webfiles its ...

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1 IntroductionNowadays electric and hybrid vehicles are being more and more placed in the center ofattraction because of the importance of shortage in fossil fuels. As simulation andmodeling of different hybrid and electric vehicles plays an important role before thedesign and manufacturing process, having a simulation environment which includesdifferent models for components used in drive train could be really beneficial [8].To havea good simulation environment, it is needed to make a library of models of componentsexist in the drive train of vehicles. There are so many simulation programs being used forstudy and analysis of different drive trains [8], [6]. Different components in the drivetrain of hybrid vehicles are modeled with different methods [7], [8], [1], [4].Theimportance and benefit of having a simulation environment is discussed in [5], [22].In[15] some methods to model internal combustion engines is discussed. In [17], [18], [23],[24], different methods to simulate batteries is given and discussed. The energymanagement and control strategies used in hybrid drive trains is presented in [14].In [1],[2], [3], [7], [9] some methods for modeling of electric machines are given. As the wholedrive train of hybrid vehicles is a combination of electric and mechanical components,the dynamic modeling of the vehicle and mechanical parts is in the aspect of interest. In[4], [8], [10], [11], [12] and [13], the dynamics of the vehicles and how to model it isdiscussed.1.1 Objective of the thesisThe purpose of this thesis is to provide some tools and methods for modeling andsimulation of components used in drive trains of hybrid vehicles. A goal is to introduceprinciples of simulation and the methods used for simulation of vehicular power systems.It is desired to create a simulation model for different components used in vehicle drivetrain. Different methods used to model vehicle dynamics, batteries and electric motors,engine is given. Altogether making a simulation environment to show the importance ofmodeling and simulation of vehicular power systems is one of the main objectives of thisthesis.1.2 Thesis outlineThis thesis is arranged in nine chapters. The first chapter, which constitutes theintroduction, provides the aim and scope of the thesis and what is done to accomplish theaims.Chapter 2 includes some theoretical background of hybrid vehicles and clarifies theimportance of simulation and modeling of vehicular power systems.Chapter 3 focuses on the basic and principles of simulation and modeling. Somesimulation tools which are used for vehicles simulations and comparison of them isgiven.1
Page 1: AhaModeling and Simulation of Vehic
Page 4: To my parents, brother and my love
Page 7 and 8: Table of ContentsAcknowledgment....
Page 9 and 10: List of FiguresFigure 2-1: Oil cons
Page 11: List of TablesTable 3-1 List of som
Page 16 and 17: Chapter 4 discusses the dynamics of
Page 18 and 19: The Other environmental effects of
Page 20 and 21: So a modeling tool being able to de
Page 22 and 23: electric motor to provide the tract
Page 24 and 25: Figure 2-8: Configuration of a para
Page 26 and 27: Vehicle system modeling can be done
Page 28 and 29: Figure 3-2: EMTS solution flow-char
Page 30 and 31: Figure 4-2: The deflection of tyre
Page 32: V −Vwheel actualλa=( 4-9)VwheelV
Page 35 and 36: Figure 4-5 Friction coefficient cha
Page 37 and 38: The gear box consists of different
Page 39 and 40: Where• I = discharge current [amp
Page 41 and 42: decreases very rapidly. In electric
Page 43 and 44: Thus, this simulation model is capa
Page 45 and 46: VOCRchargeRdischargeSOCTempSOCQmaxT
Page 47 and 48: Figure 5-8 Battery open circuit vol
Page 49 and 50: Figure 5-11 Charging resistance ver
Page 51 and 52: 6 Engine, electric machine and cont
Page 53 and 54: 4 Idle speed 840 rpm5 Peak power 15
Page 55 and 56: 7 Modeling in Simulink/MatlabOnce t
Page 57 and 58: Figure 7-3 Vehicle dynamics block i
Page 59 and 60: 7.3 EngineAs described in Chapter 5
Page 61 and 62: Figure 7-7 Automatic driver model b
Page 63 and 64: 8 Simulation ResultsIn this chapter
Page 65 and 66:
Peak generator torque1074 N.mPeak g
Page 67 and 68:
Figure 8-5 Wheel speed and translat
Page 69 and 70:
Figure 8-7 Engine and generator pow
Page 71 and 72:
Figure 8-9 Battery state of charge
Page 73 and 74:
9 ConclusionRegarding the significa
Page 75 and 76:
References[1] Shuo Tian, Guijun Cao
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