Optimization potential of the vehicle launch performance for start—stop micro-hybrid vehicles

Dhand, Aditya; Cho, B; Walker, A.; Kok, Daniël; M, Burgess; Semar, B

doi:10.1243/09544070jauto1496

Cited by 10 publications

(6 citation statements)

References 8 publications

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“…Furthermore, Vora et al [24] highlight the issue with the high exhaust flow rate and the temperature from the tail-pipe to pedestrian safety. Beer et al [25] and Dhand et al [26] have introduced an engine stop-start strategy that can feasibly minimize the tail-pipe temperature. However, this feature is traditionally difficult to achieve due to the response behaviours of the MTG for the start and shut-down modes as well as to meet the instantaneous power demands; these can easily be provided by the IC engine in contrast.…”

Section: Mtg Configurationmentioning

confidence: 99%

Characterisation of micro turbine generator as a range extender using an automotive drive cycle for series hybrid electric vehicle application

Shah

McGordon

Rahman

et al. 2021

Applied Thermal Engineering

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Section: Mtg Configurationmentioning

confidence: 99%

Characterisation of micro turbine generator as a range extender using an automotive drive cycle for series hybrid electric vehicle application

Shah

McGordon

Rahman

et al. 2021

Applied Thermal Engineering

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“…• Stop-start: to save fuel, it stops/starts traditional engines based on surrounding vehicle state and immediate traffic regulation state, for instance, temporarily stopping an engine in front of red light [33], [12], [16].…”

Section: B Fuel Economy and Emission Controlmentioning

confidence: 99%

A Multi-Scale Spatiotemporal Perspective of Connected and Automated Vehicles: Applications and Wireless Networking

Johri

Rao

et al. 2016

IEEE Intell. Transport. Syst. Mag.

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Wireless communication is a basis of the vision of connected and automated vehicles (CAVs). Given the heterogeneity of both wireless communication technologies and CAV applications, one question that is critical to technology road-mapping and policy making is which communication technology is more suitable for a specific CAV application. Focusing on the technical aspect of this question, we present a multi-scale spatiotemporal perspective of wireless communication technologies as well as canonical CAV applications in active safety, fuel economy and emission control, vehicle automation, and vehicular infotainment. Our analysis shows that CAV applications in the regime of small spatiotemporal scale communication requirements are best supported by V2V communications, applications in the regime of large spatiotemporal scale communication requirements are better supported by cellular communications, and applications in the regime of small spatial scale but medium-to-large temporal scale can be supported by both V2V and cellular communications and provide the opportunity of leveraging heterogeneous communication resources. I. INTRODUCTIONTransforming the traditional paradigm of single-vehicle-oriented optimization and operation, next-generation vehicles are expected to coordinate with one another, transportation infrastructures, Internet clouds, and people in maximizing the safety, sustainability, and comfort of road transportation. One basic enabler of this vision of connected and automated vehicle (CAV) operation is for vehicles to wirelessly communicate with one another, transportation infrastructures, Internet clouds, and people. Given the wide spectrum of available wireless communication technologies (e.g., cellular and DSRC) and the heterogeneity of CAV applications envisioned, there has been heated debate on the exact wireless communication technologies to be used for CAVs, and complex factors such as market penetration of new technologies have complicated this debate. Towards a thorough technical examination of the debate and for enabling strategic planning of technology roadmap, we analyze different categories of CAV applications by examining their spatiotemporal scales of communication requirements, and we analyze capacity limits of different wireless communication alternatives. Based on this analysis, we make recommendations on technology planning.The rest of this article is organized as follows. In Section II, we review representative CAV applications and their communication requirements. In Section III, we comparatively analyze cellular communication and V2V communication in supporting CAV applications. We make concluding remarks in Section IV.

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“…The provision of torque at the crankshaft output during the highly dynamic launch phase is crucial, especially considering technologies like start-stop and turbochargers. Simulation models have been developed to calculate this transient behavior [19][20][21]. Manual transmissions require the driver to control the engagement of the clutch.…”

Section: Introductionmentioning

confidence: 99%

Objective Rating of the Launch Behavior of Conventional, Hybrid and Electric Vehicles

2021

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The calibration of conventional, hybrid and electric drivetrains is an important process during the development phase of any vehicle. Therefore, to optimize the comfort and dynamic behavior (known as driveability), many test drives are performed by experienced drivers during different driving maneuvers, e.g., launch, re-launch or gear shift. However, the process can be kept more consistent and independent of human-based deviations by using objective ratings. This study first introduces an objective rating system developed for the launch behavior of conventional vehicles with automatic transmission, dual-clutch transmission, and alternative drivetrains. Then, the launch behavior, namely comfort and dynamic quality, is compared between two conventional vehicles, a plug-in hybrid electric vehicle and a battery electric vehicle. Results show the benefits of pure electric drivetrains due to the lack of launch and shifting elements, as well as the usage of a highly dynamic electric motor. While the plug-in hybrid achieves a 10% higher overall rating compared to the baseline conventional vehicle, the pure electric vehicle even achieves a 21% higher overall rating. The results also highlight the optimization potential of battery electric vehicles regarding their comfort and dynamic characteristics. The transitions and the gradient of the acceleration build-up have a major influence on the launch quality.

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Optimization potential of the vehicle launch performance for start—stop micro-hybrid vehicles

Cited by 10 publications

References 8 publications

Characterisation of micro turbine generator as a range extender using an automotive drive cycle for series hybrid electric vehicle application

Characterisation of micro turbine generator as a range extender using an automotive drive cycle for series hybrid electric vehicle application

A Multi-Scale Spatiotemporal Perspective of Connected and Automated Vehicles: Applications and Wireless Networking

Objective Rating of the Launch Behavior of Conventional, Hybrid and Electric Vehicles

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