Performance Evaluation of an Electric Vehicle with Multiple Electric
                    Machines for Increased Overall Drive Train Efficiency

Tribioli, Laura; Chiappini, Daniele; Vukotić, Mario; Miljavec, Damijan

doi:10.4271/2019-24-0247

Cited by 5 publications

(4 citation statements)

References 15 publications

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“…Introducing the concept of modularity [23], two smaller e-motors can be used instead of the larger single motor. Each of the smaller e-motors is integrated with gearbox and Si-C inverter to form a highly efficient and compact integrated drivetrain module (IDM).…”

Section: Dual Integrated Drivetrain Modulementioning

confidence: 99%

“…The efficiency of the single e-motor is evaluated from the map shown in Figure 4, which is obtained in [23] with the method proposed in [24].…”

Section: Electric Vehicle Modelmentioning

confidence: 99%

“…The efficiency of the single e-motor is evaluated from the map shown in Figure 4, which is obtained in [23] with the method proposed in [24]. For the e-motors of the two IDMs, the Willans line model [25] has been used to scale down the single e-motor map.…”

Section: Electric Vehicle Modelmentioning

confidence: 99%

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Cooling System Energy Consumption Reduction through a Novel All-Electric Powertrain Traction Module and Control Optimization

et al. 2020

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In this work, the problem of reducing the energy consumption of the cooling circuit for the propulsion system of an all-electric vehicle is approached with two different concepts: improvement of the powertrain efficiency and optimization of the control strategy. Improvement of the powertrain efficiency is obtained through a modular design, which consists of replacing the electric powertrain with several smaller traction modules whose powers sum up to the total power of the original powertrain. In this paper, it is shown how modularity, among other benefits, also allows reducing the energy consumption of the cooling system up to 54%. The energy consumption of the cooling system is associated with two components: the pump and the fan. They produce a so-called auxiliary load on the battery, reducing the maximum range of the vehicle. In conventional cooling systems, the pump and the fan are controlled with a thermostat, without taking into account the energy consumption. Conversely, in this work a control strategy to reduce the auxiliary loads is developed and compared with the conventional approach, showing that the energy consumption of the cooling system can be reduced up to 27%. To test the control strategy, numerical simulations have been carried out with a 1-D model of the cooling system. On the other hand, all the thermal loads of the components have been calculated with a vehicle simulator, which is able to predict the vehicle’s behavior under different driving cycles.

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Section: Dual Integrated Drivetrain Modulementioning

confidence: 99%

“…The efficiency of the single e-motor is evaluated from the map shown in Figure 4, which is obtained in [23] with the method proposed in [24].…”

Section: Electric Vehicle Modelmentioning

confidence: 99%

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Cooling System Energy Consumption Reduction through a Novel All-Electric Powertrain Traction Module and Control Optimization

et al. 2020

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“…In fact, while thermal engines usually require mechanical devices and/or hydraulic systems to transfer power, electric motors can be distributed differently on the vehicle platform. For instance, the automotive industry is looking at the optimization of weight distribution, the possibility of explointing the benefit of torque vectoring and the enhancement of efficiency by cleverly combining speed and torque from different motors [33]. The benefits for the off-highway industry are even more profound.…”

mentioning

confidence: 99%

Electrification of Compact Off-Highway Vehicles—Overview of the Current State of the Art and Trends

et al. 2021

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Electrified vehicles have undergone great evolution during the last decade because of the increasing attention paid on environmental sustainability, greenhouse gas emissions and air pollution. Emission regulations are becoming increasingly tight, and governments have been allocating multiple funds to facilitate the spreading of the so-called green mobility. In this context, steering towards electrified solutions not only for passenger vehicles, but also for compact off-highway vehicles extensively employed, for instance, on construction sites located in urban areas, warehouses, and greenhouses, is essential even if seldom considered. Moreover, the electrification of compact off-highway machinery may allow manufacturers to increase their expertise in and lower the costs of these alternative solutions, while gathering useful data to be applied in bigger and more remunerative off-highway vehicles. In fact, while electric automobiles are as of now real alternatives for buyers, off-highway vehicles, regardless of the application, are mostly in the research and experimental phase, with few of them already on the market. This delay, in comparison with the passenger automotive industry, is caused by different factors, mostly related to the different tasks of off-highway vehicles in terms of duty cycles, productivity performance parameters and user acceptability. The aim of this paper is to give an overview of the many aspects of the electrification of compact off-highway vehicles, to highlight the key differences between on-highway and off-highway vehicles and to summarize in a single source of information the multiple solutions investigated by researchers and manufacturers.

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Battery-Electric Powertrain Design Analysis for an Efficient Passenger Vehicle

Duclos

Hofman

2021

2021 IEEE Vehicle Power and Propulsion Conference (VPPC)

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Performance Evaluation of an Electric Vehicle with Multiple Electric Machines for Increased Overall Drive Train Efficiency

Cited by 5 publications

References 15 publications

Cooling System Energy Consumption Reduction through a Novel All-Electric Powertrain Traction Module and Control Optimization

Cooling System Energy Consumption Reduction through a Novel All-Electric Powertrain Traction Module and Control Optimization

Electrification of Compact Off-Highway Vehicles—Overview of the Current State of the Art and Trends

Battery-Electric Powertrain Design Analysis for an Efficient Passenger Vehicle

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