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

More documents

Recommendations

Info

electric motor to provide the tractive force on the wheels of the vehicle through thetransmission system [11]. The series configuration is shown in figure 2-5 and 2-6.Figure 2-5: Functional block diagram of a series hybrid vehicleFigure 2-6: Configuration of a series hybrid vehicleAs the internal combustion engine is not connected directly to the transmission system soit can be run at the best efficiency operation points which consequently results in less fuelconsumption.In series hybrid vehicles the traction power must be transferred to the wheels through thetraction motor. The cost and weight of the traction motor in order to provide the needed8
power during acceleration and regenerative energy is a constraint in this type of hybridvehicle [11].2.4.2 Parallel Hybrid VehiclesIn this topology, figure 2-7 and 2-8, the main energy source and the secondary energysource are connected in parallel to the transmission system. It means that both the internalcombustion engine and the traction motor apply a torque to the shaft of the transmissionsystem. In this configuration the combustion engine is responsible to provide the tractionpower and the power needed to keep the battery charged. The performance and fueleconomy of the vehicles depend heavily on the applied energy management strategy.There are many energy management strategies used to improve the fuel economy of thevehicle [14]. One strategy is “on/off” or “Thermostat”. Under this strategy the engine willturn on and off based on the SOC status of the battery. There is another strategy called“power split”. Under this “Power Split” strategy the engine and the battery operate at thehigh efficient operating points. These operating points are selected based on theefficiency maps of the components. As the combustion engine is responsible to providemost of the traction power and also keep the state of charge of the battery (usually 65%)so the power rating of the ICE is higher than that of electric traction motor [14].Figure 2-7: Functional block diagram of a parallel hybrid vehicle9
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 14 and 15: xii
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 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
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?