Efficiency analysis of powertrain with toroidal continuously variable transmission for Electric Vehicles

Gunji, Daisuke; Fujimoto, Hiroshi

doi:10.1109/iecon.2013.6700226

Cited by 22 publications

(18 citation statements)

References 7 publications

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“…The efficiencies of the motor, mechanical drive train and electronics vary based on the operating conditions. Motor efficiency ranges between 80% to 97% with 80% at the extreme end of the torquespeed curve [37]. The inverter efficiencies range from 90 to 98% and the mechanical drive train efficiency ranges between 70% to 95%.…”

Section: Discussion and Impact Factormentioning

confidence: 99%

“…The inverter efficiencies range from 90 to 98% and the mechanical drive train efficiency ranges between 70% to 95%. Although this is a large efficiency variation, for the driving range estimation in the low torque and medium speed range the efficiencies of the motor, electronics, and mechanical drive train can be assumed to be 95%, 98% and 90% [37]. The battery window of operation is assumed to be 90%.…”

Section: Discussion and Impact Factormentioning

confidence: 99%

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Electric Vehicles and Driving Range Extension – A Literature Review

Chandran¹,

Joshi²

2016

Adv Automob Eng

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Electric vehicles are gaining popularity due to their low carbon footprint and ease of integration with renewable energy. They are an important element in the smart grid ecosystem. Increasing the driving range of storage driven electric vehicles is the biggest challenge facing the light weight electric vehicle industry. A literature review has been performed to identify various techniques to improve the driving range. Various methods of driving range improvement such as new storage topologies, switching techniques, motor configurations are studied. A new quantitative measure called as impact factor has been derived to see the effect of each technique on the driving range. Impact factor for different methods has been calculated. It is shown that increasing the storage capacity has the highest impact factor on the driving range.

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Section: Discussion and Impact Factormentioning

confidence: 99%

Section: Discussion and Impact Factormentioning

confidence: 99%

Electric Vehicles and Driving Range Extension – A Literature Review

Chandran¹,

Joshi²

2016

Adv Automob Eng

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“…The simulation platform can be used to analyze a wide range of vehicle types. In the vehicle system, the transmission ratio and vehicle mass are the key factors that affect energy consumption [32], [33]. Thus, the three cases listed in Fig.…”

Section: ) Under Different Vehicle Typesmentioning

confidence: 99%

The Potential Impact of Using Traction Inverters With SiC MOSFETs for Electric Buses

Wang

Xing

et al. 2021

IEEE Access

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The efficiency improvements offered by adopting Silicon Carbide (SiC) devices in Electric Vehicle (EV) inverters has been widely reported in various studies. However, it has still not been established whether or when the efficiency benefits can counteract the high price of SiC devices, especially for the scenario of urban electric buses. In this paper, the potential impact of installing SiC devices on electric buses is analyzed from the perspective of economic benefits. The SiC inverter used in the drive system is based on a discrete MOSFET in parallel. For comparison, an Si inverter based on a sixthgeneration IGBT produced by Infineon is also evaluated. A vehicle simulation platform is established in Simulink for an evaluation of energy consumption for different scenarios. It is shown that significant energy savings can be gained when the vehicle operates mostly in the partial load area. While in the nominal load area, energy savings are very limited. Based on the analysis, the conditions for offsetting the cost premium of SiC devices to realize system-level advantages are discussed using a multi-dimensional analysis considering the change in battery and device prices, driving range, vehicle mass, and driving cycles.INDEX TERMS SiC devices, electric bus, energy consumption, system-level advantages, driving cycles.

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“…Several IoT methods are widely used in the vehicle operation, control, diagnostics, as well as for interconnection with other participants of traffic flow [4]- [6]. However, scientists from many countries continue to work on improving hybrid power plants (HPP) [7], improving their technical and operational characteristics [8], [9], [7], [10], [11], and car manufacturers continue to produce them. At present, cars, trucks and buses with HPP are mass-produced by automobile manufacturers of the world (Honda, General Motors, Toyota, Lexus, Ford, Volkswagen), large energy companies and national laboratories (EPRI, General Electric, NREL, INEEL, ISE Research).…”

Section: Introductionmentioning

confidence: 99%

Choice of Parameters for the Electrodrive Diagnostic System of Hybrid Vehicle Traction

Arhun

Borodenko

Hnatov

et al. 2020

Latvian Journal of Physics and Technical Sciences

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When operating a hybrid vehicle (HEV), it is important to reduce maintenance and repair costs. The HEV electric drive (ED) consists of electronic, electrical and mechanical parts and is considered a complex diagnostic model. The availability of an electrical part greatly simplifies the process of monitoring and obtaining information about the state of the system. In order to create a hybrid diesel-electric propulsion system (HDEPS), the choice of structural and functional parameters as diagnostic ones is justified, the control points are chosen, and the necessary accuracy and unambiguity of measurements are determined. Qualitative evaluations of the electrical processes occurring in the power supply circuit of ED from a high-voltage accumulator battery for the selection of diagnostic parameters according to the criteria of sensitivity, informative character, stability and manufacturability of measurements are presented. It has been revealed that during HDEPS diagnostics both stable and transient modes of operation of electric machines should be considered; for analysis of ED technical state it is necessary to have information about current mode of HDEPS load; for measurement of instantaneous values of supply voltage and consumption current it is necessary to select the sensors with short response time and linear conversion function. In terms of sensitivity to structural changes in the circuit and parametric deviations, it is necessary to choose, as diagnostic parameters, the voltage or current, depending on the mode of operation of the ED and the point of measurement of the electrical value. The obtained results are the basis for creating a new system of diagnostics of electric power supply HDEPS in this direction.

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Efficiency analysis of powertrain with toroidal continuously variable transmission for Electric Vehicles

Cited by 22 publications

References 7 publications

Electric Vehicles and Driving Range Extension – A Literature Review

Electric Vehicles and Driving Range Extension – A Literature Review

The Potential Impact of Using Traction Inverters With SiC MOSFETs for Electric Buses

Choice of Parameters for the Electrodrive Diagnostic System of Hybrid Vehicle Traction

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