Efficiency Map of the Traction System of an Electric Vehicle from an On-Road Test Drive

Dépature, Clément; Lhomme, Walter; Bouscayrol, Alain; Sicard, Pierre; Boulon, Loïc

doi:10.1109/vppc.2014.7007056

Cited by 23 publications

(11 citation statements)

References 13 publications

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“…A new on-road method has been proposed in [28] to determine an efficiency map using a real on-road driving cycle. Two issues have to be solved to determine the efficiency map.…”

Section: On-road Methods Characterisationmentioning

confidence: 99%

“…All the variables are listed in Tables 4 and 5 in the Appendix. The complete model of the vehicle is detailed in [28].…”

Section: Studied Vehiclementioning

confidence: 99%

“…To avoid the use of a chassis dynamometer, a new in-vehicle and on-road method has been proposed in [28]. From a real driving cycle the efficiency map of the electric traction drive is characterised using non-intrusive measurements from global positioning system (GPS) antenna, voltage and current sensors.…”

Section: Introductionmentioning

confidence: 99%

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Characterisation of the electric drive of EV: on‐road versus off‐road method

Dépature

Lhomme

Bouscayrol

et al. 2017

IET Electrical Systems in Transportation

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For system design, analysis of global performance and energy management of electric vehicles, it is common to use the efficiency map of electric traction drive. The characterization of the efficiency map with high accuracy is then an important issue. In this paper an onroad method and an off-road method are compared experimentally to determine the efficiency map of electric drive of electric vehicles. The off-road method requires a dedicated experimental test bed, which is expensive and time-consuming. The on-road method is achieved directly in-vehicle. Experimental data, recorded during an on-road driving cycle, are used to determine the efficiency map using non-intrusive measurements from GPS antenna, voltage and current sensors. A versatile experimental setup is used to compare both methods on the same platform. A maximal efficiency difference of 6% is achieved in most of the torque-speed plane. It is shown that, in an energetic point of view, both methods yield similar results.

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“…A new on-road method has been proposed in [28] to determine an efficiency map using a real on-road driving cycle. Two issues have to be solved to determine the efficiency map.…”

Section: On-road Methods Characterisationmentioning

confidence: 99%

“…All the variables are listed in Tables 4 and 5 in the Appendix. The complete model of the vehicle is detailed in [28].…”

Section: Studied Vehiclementioning

confidence: 99%

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Characterisation of the electric drive of EV: on‐road versus off‐road method

Dépature

Lhomme

Bouscayrol

et al. 2017

IET Electrical Systems in Transportation

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“…Traction subsystem -The current of the equivalent source is deduced from an efficiency map of the inverter and the induction machine (IM) [31,32]. The model has been validated with on-road tests with an error lower than 5% on the consumption [33].…”

Section: Iet Electrical Systems In Transportationmentioning

confidence: 99%

Practical control schemes of a battery/supercapacitor system for electric vehicle

Castaings

Lhomme

Trigui

et al. 2016

IET Electrical Systems in Transportation

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A hybrid energy storage system for electric vehicle using supercapacitors and a battery is studied. Using energetic macroscopic representation formalism, an inversion-based control (IBC) can be deduced. A comparison between IBC and two other control schemes is performed within a practical aspect. Simulation and experimental tests with a reduced-scale test bed are provided using a real driving cycle of an electric car. The results point out a more effective behaviour for the IBC than the other control schemes in terms of dynamical response.

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“…More reliable results could be achieved if during the design process a feedback loop for the prototype performance is included [9]. However, it is rarely feasible at an early design stage.…”

Section: Introductionmentioning

confidence: 99%

Co-Energy-Based Lookup Table Model for DC-Excited Flux-Switching Motor: Study at Vehicle Level

Mongellaz

Sellier

Chishko³

et al. 2015

2015 IEEE Vehicle Power and Propulsion Conference (VPPC)

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This paper concerns an initial simplified steadystate method to start to evaluate the behavior of a dc-excited fluxswitching motor at a steady-state, or slow dynamic, vehicle level. Starting from a simplified finite-element motor representation, a two-dimensional co-energy lookup table model is extracted. Then, a model reduction is performed to create steady-state loss maps of the system parts at different torque-speed points, considering the simplified losses. These loss maps are integrated into an electric vehicle model, where a discussion is introduced to illustrate the limitation of using efficiency maps. Finally, to determine an average efficiency of the electrical powertrain during drive cycles, a fast simplified steady-state calculation is performed.

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Efficiency Map of the Traction System of an Electric Vehicle from an On-Road Test Drive

Cited by 23 publications

References 13 publications

Characterisation of the electric drive of EV: on‐road versus off‐road method

Characterisation of the electric drive of EV: on‐road versus off‐road method

Practical control schemes of a battery/supercapacitor system for electric vehicle

Co-Energy-Based Lookup Table Model for DC-Excited Flux-Switching Motor: Study at Vehicle Level

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