Electromobility Topics Entering a New Decade

Popescu, Liviu

doi:10.36801/apme.2020.1.13

Cited by 8 publications

(3 citation statements)

References 7 publications

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“…More mobility possibilities are increasingly based on electric vehicles (EVs) [1]. Such solutions are not often used but could become mainstream, as the technology is already there [2,3].…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

POPESCU,

CRAIU

2023

RRST-EE

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Using more than one motor in an EV (Electric Vehicle) powertrain enhances the vehicle’s torque, acceleration, and speed capabilities. A more tractive force produced by the electric powertrain requires more electric current from the battery. In modern EVs, mechanical power production can be approached to the wheels reducing the mechanical losses in the transmissions. It is the case with multiple-motor powertrains. Several advantages regarding vehicle control, physical performance, and energy efficiency improvement are obtained. In the current study, a BLDC (brushless dc) motor is investigated from the efficiency point of view to build a multiple-motor powertrain. A new methodology uses analytic calculations, simulations, and physical measurements. A powertrain with three identical motors results in a new vehicle configuration. Each motor's energy consumption improvements are analyzed following a normalized testing procedure. The results are compared with those of a single-motor powertrain.

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“…More mobility possibilities are increasingly based on electric vehicles (EVs) [1]. Such solutions are not often used but could become mainstream, as the technology is already there [2,3].…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

POPESCU,

CRAIU

2023

RRST-EE

Self Cite

View full text Add to dashboard Cite

show abstract

“…Being known for more than 100 years [1], Electric Vehicle (EV) topics continue to be investigated following sustained research activities in order to accelerate the transition to green mobility. Improvements in the capabilities to have more onboard electric energy continue in parallel with more efficiency on the powertrain.…”

Section: Introductionmentioning

confidence: 99%

Efficiency Maps for an Ev BLDC Motor Using Analytic Calculation and Simulation

Popescu¹,

Stanescu²

2023

APME/EMMD

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In an EV (Electric Vehicle), the more tractive force produced by the electric powertrain in fact requires more electric current from the battery. The question is how efficiently the stored energy is used, as for modern EVs, the ability to move over a greater distance represents an important issue. Of course, it can be best confirmed by physical measurements on the vehicle, but before, the analytic calculations and the simulations are important to certify the choices. In this context, the actual paper presents the analysis of the capabilities of a BLDC motor powertrain. A new method is used in the determination of the number of identical motors needed to participate in the powertrain, based on the efficiency map of the individual motor.

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“…Modeling and simulation of Electric Vehicles (EV) requires good knowledge of the vehicle on technical and regulatory aspects, appropriate mathematical models for different components and especially a valuable contribution of researchers who have been working and works in the field [1]. The advantages of electric motors as high instant power, fast torque response, fast power density, low cost and high acceleration [2] are good premises for mobility usage. But even if electric vehicles present high energetic performance, the optimization remains an important feature [3] for providing higher operational range and continuing costs reduction.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Multi-Motor Propulsion System for Energy Efficiency in Electric Vehicles

Popescu¹,

Dumitran²,

Stanescu³

2021

AUCEE

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For a vehicle, the knowledge of components, characteristics, performances, and behaviors are some base elements for a successful simulation. Today's tools are offering instruments able to cover a such request and new possibilities appear. Choosing the right ones, representing the entire vehicle as a system of subsystems, integrating as much as possible the parameters of different components, are also few additional elements. For internal combustion engine vehicles, the generation and the transmission of the mechanical power to the wheels imply the usage of specific mechanic parts. From a single engine, the mechanical power is controlled to offer the requested torque and speed simultaneously to the vehicle wheels, passing by clutches and gearboxes. An electric propulsion, generating high torque at zero speed, and covering large speed area, implies less components for the mechanical transmissions. One single gear, a reducer, could cover the entire speed area request of the vehicle. On the other hand, it is possible to approach the generation of the mechanical power to the wheels, by using not only one electric motor, but one for each axle, or, even more, one electric motor for each wheel of the vehicle. This paper presents the usage of numerical simulation in such situations, emphasizing opportunities for onboard energy efficiency improvement, and opening new possibilities for optimization in multiple motor solutions.

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Electromobility Topics Entering a New Decade

Cited by 8 publications

References 7 publications

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

Efficiency Maps for an Ev BLDC Motor Using Analytic Calculation and Simulation

Simulation of Multi-Motor Propulsion System for Energy Efficiency in Electric Vehicles

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