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Energies 2017,10, 315
Basedontheestimatedlateralmisalignmentvalues, thesteeringcanbecontrolled,asshownin
theexperimentalvehicleās recordeddata inFigure26. It shouldbenotedthat theexperimental setup
differs greatly froma realdrivingenvironment, because thevehicleās lateral positionwas forcibly
changedusing theacrylicplate.However, the testdemonstrates that the fuzzycontrollerdesigned
in[24]outputsasteeringvaluecorrespondingto the lateralmisalignmentposition, thusverifyingthe
feasibilityof theoperatingconceptof theautonomoussteeringcontrol.
Figure26.SteeringangleoutputgeneratedbytheFuzzysteeringcontrollerdesignedin [24]basedon
theestimated lateralmisalignmentshowninFigure22.
Figure 27 shows the estimated power received in the load coil of the experimental vehicle.
Theestimatedpower is theproductofvoltageandcurrent. Thevoltagewasmeasuredbyadigital
voltmeter installed in thevehicle. Thecurrentcanbecalculatedbyļ¬ndingtherelationshipfunction
betweenvoltageandcurrentbasedonFigure24. Theļ¬gureshowsthatwhenthevehicleās loadcoil is
alignedwiththesourcecoil, roughly11Wofpower is received,andwhenthevehicle isataĀ±5cm
lateralmisalignment, thereceivedpower falls to roughly4W.This indicates that thereceivedpower is
reducedbymore than twothirdsof itsmaximumlevel,whichcanresult inasigniļ¬cant loss in the
vehicleāsdrivingrange.
Figure 27. Estimated power received by the load coil of the experimental vehicle during the
secondexperiment.
Toshowthesigniļ¬canceof theACAS,ananalysiscomparingthegeneratedenergyofavehicle
withACASandwithoutACASwasconducted.Here, twoassumptionsaremade:
1. For thevehiclewithoutACAS, theestimatedpowershowninFigure27wasassumedtobe the
levelofpower thatwouldactuallybereceivedbytheDWCvehiclewhile inoperation.
2. For thevehiclewithACAS, itwasassumedthataconstant11Wofpower isgenerated, as the
vehicleās loadcoil iskept inconstantalignmentwith thesourcecoilontheroad.
341
Emerging Technologies for Electric and Hybrid Vehicles
- Title
- Emerging Technologies for Electric and Hybrid Vehicles
- Editor
- MDPI
- Location
- Basel
- Date
- 2017
- Language
- English
- License
- CC BY-NC-ND 4.0
- ISBN
- 978-3-03897-191-7
- Size
- 17.0 x 24.4 cm
- Pages
- 376
- Keywords
- electric vehicle, plug-in hybrid electric vehicle (PHEV), energy sources, energy management strategy, energy-storage system, charging technologies, control algorithms, battery, operating scenario, wireless power transfer (WPT)
- Category
- Technik