Prescriptive Modeling, Simulation and Performance Analysis of Mild Hybrid Vehicle and Component Optimization

Vallur, Avinash Rajendran; Khairate, Yuvaraj; Awate, Chandrakant

doi:10.4271/2015-26-0010

Cited by 16 publications

(4 citation statements)

References 6 publications

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“…For the MHEV, some studies suggest that EM of power typically 7-12 kW is enough for this type of technology [38]. Others authors affirm that the power rating of the electric motor may be in the range of about 10% of the engine power (equivalent to 10.5 kW for the Opel Vectra) [39,40]. Therefore, a range around the suggested value was tested in this work (from 3 to 25 kW).…”

Section: Selection Of Componentsmentioning

confidence: 99%

Optimization of the parallel and mild hybrid vehicle platforms operating under conventional and advanced combustion modes

Benajes

García

Monsalve‐Serrano

et al. 2019

Energy Conversion and Management

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The stringent regulations, increased global temperature and customer demand for high fuel economy have led to rapid developments of different alternative propulsion solutions in the last decade, with special attention to the electrified vehicles. The combination of electric machines with conventional powertrains allows to diversify the powertrain architectures. In addition, alternative combustion modes as reactivity controlled compression ignition (RCCI) have been shown to provide simultaneous ultralow NOx and soot emissions with similar or better thermal efficiency than conventional diesel combustion (CDC). Therefore, the combination of both technologies creates a promising horizon to be implemented in commercial vehicles of the near future. In this work, experimental and numerical simulations were combined to study the potential of the parallel full hybrid electric vehicle (P2-FHEV) and mild hybrid vehicle (MHEV) to obtain lower fuel consumption and NOx emissions than a conventional powertrain in the Worldwide Harmonized Light Vehicles Cycle (WLTC). The hybrid vehicles are simulated with both CDC and diesel-gasoline RCCI combustion engines as power source. Each powertrain was optimized in terms of components (battery, electric motors...) capacity, internal combustion engine operative points, energy management strategy and gear ratios. The results show a significant fuel consumption reduction as the complexity of the hybrid system increases. The parallel architecture, which represents the most complex hybrid system tested in this work, allows obtaining a fuel consumption reduction of around 20% as compared to CDC. The dual-mode CDC-RCCI concept showed improvements in NOx and soot emissions with comparable values in terms of energy consumption and CO2 emissions than CDC. Additionally, the mild hybrid technology with the functionality of start-stop, torque assist and regenerative braking showed an acceptable balance between complexity and fuel consumption gain.

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Section: Selection Of Componentsmentioning

confidence: 99%

Optimization of the parallel and mild hybrid vehicle platforms operating under conventional and advanced combustion modes

Benajes

García

Monsalve‐Serrano

et al. 2019

Energy Conversion and Management

View full text Add to dashboard Cite

show abstract

“…In applications to automobiles, there are two main mild hybrid drivetrain architectures which are recoginised as ISA-based mild hybrid and BSA-based mild hybrid (or parallel mild hybrid) [34][35][36]. It can be seen that in both the architectures, the main components comprises an ICE, an electric machine (motor-generator), electric energy storage devices (batteries with/without ultracapacitors), a transmission gear box, controllable clutches, final drive and wheels.…”

Section: Propulsion Architecturesmentioning

confidence: 99%

“…One of the biggest concerns in designing a hybrid system is the selection of energy storage devices. For mild hybrid applications, the current technologies enable the system to operate at low voltage ranging from 12V to 64V [34]. Battery, comprising one or more electrochemical cells to convert the stored chemical energy into electrical energy, is considered as the most popular choice for energy storages of vehicles and machines.…”

Section: Energy Storage Devicesmentioning

confidence: 99%

Challenges of micro/mild hybridisation for construction machinery and applicability in UK

Truong

Marco

Greenwood

et al. 2018

Renewable and Sustainable Energy Reviews

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“…Recently, micro/mild hybridisation (MMH) has been widely used for modern vehicles due to its advantages, including high fuel efficiency, low emission and especially, low cost and easy installation regardless of the drivetrain configuration. [2][3][4] During the operation of a machine, such as excavator, wheel loader, forklift or telescopic handler, and particularly at the times of reduced workloads (as load lowering) or task waiting (as load holding), less than full engine power is required to enhance an effective performance. Such periods of reduced workloads present good opportunities to improve the fuel efficiency as well as to reduce the machine noise, vibration and pollution.…”

Section: Introductionmentioning

confidence: 99%

Powertrain modelling for engine stop–start dynamics and control of micro/mild hybrid construction machines

Dinh

Marco

Greenwood

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part K:

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Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription. AbstractEngine stop-start control is considered as the key technology for micro/mild hybridisation of vehicles and machines. To utilize this concept, especially for construction machines, the engine is desired to be started in such a way that the operator discomfort can be minimized. To address this issue, this paper aims to develop a simple powertrain modelling approach for engine stop-start dynamic analysis and an advanced engine start control scheme newly applicable for micro/mild hybrid construction machines. First, a powertrain model of a generic construction machine is mathematically developed in a general form which allows to investigate the transient responses of the system during the engine cranking process. Second, a simple parameterisation procedure with a minimum set of data required to characterise the dynamic model is presented. Third, a modelbased adaptive controller is designed for the starter to crank the engine quickly and smoothly without the need of fuel injection while the critical problems of machine noise, vibration and harshness can be eliminated. Finally, the advantages and effectiveness of the proposed modelling and control approaches have been validated through numerical simulations. The results imply that with the limited data set for training, the developed model works better than a high fidelity model built in AMESim while the adaptive controller can guarantee the desired cranking performance.

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Prescriptive Modeling, Simulation and Performance Analysis of Mild Hybrid Vehicle and Component Optimization

Cited by 16 publications

References 6 publications

Optimization of the parallel and mild hybrid vehicle platforms operating under conventional and advanced combustion modes

Optimization of the parallel and mild hybrid vehicle platforms operating under conventional and advanced combustion modes

Challenges of micro/mild hybridisation for construction machinery and applicability in UK

Powertrain modelling for engine stop–start dynamics and control of micro/mild hybrid construction machines

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