Evaluation of the effects of trends on vehicle concepts based on a forecast of travel demand

Peters, Peter Lukas; Demuth, Rainer; Schramm, Dieter

doi:10.1007/978-3-658-25939-6_46

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…However, its potential is heavily dependent on its applications. Private Autonomous Vehicles (AVs) will continue to be oversized in most cases, to completely cover the mobility demand of a single person [6] (p. 580). However, AVs used in combination with new business models, such as ridesharing, will have their full saving potentials when they are the right size.…”

Section: Introductionmentioning

confidence: 99%

“…However, AVs used in combination with new business models, such as ridesharing, will have their full saving potentials when they are the right size. Designing an AV fleet, for example for 99% instead of 99.9% of car trips in Germany, reduces the required range from 475 km to 135 km [6] (p. 580). In order to derive the battery size from the range of such a fleet vehicle, both the consumption of the powertrain and also of the auxiliary consumers (e.g., air conditioning) must be considered [7] (p. 142).…”

Section: Introductionmentioning

confidence: 99%

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The Impact of HVAC on the Development of Autonomous and Electric Vehicle Concepts

et al. 2022

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Automation and electrification are changing vehicles and mobility. Whereas electrification is mainly changing the powertrain, automation enables the rethinking of the vehicle and its applications. The actual driving range is an important requirement for the design of automated and electric vehicles, especially if they are part of a fleet. To size the battery accordingly, not only the consumption of the powertrain has to be estimated, but also that of the auxiliary users. Heating Ventilation and Air Conditioning (HVAC) is one of the biggest auxiliary consumers. Thus, a variable HVAC model for vehicles with electric powertrain was developed to estimate the consumption depending on vehicle size and weather scenario. After integrating the model into a tool for autonomous and electric vehicle concept development, various vehicle concepts were simulated in different weather scenarios and driving cycles with the HVAC consumption considered for battery sizing. The results indicate that the battery must be resized significantly depending on the weather scenario to achieve the same driving ranges. Furthermore, the percentage of HVAC consumption is in some cases higher than that of the powertrain for urban driving cycles, due to lower average speeds. Thus, the HVAC and its energy demand should especially be considered in the development of autonomous and electric vehicles that are primarily used in cities.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Impact of HVAC on the Development of Autonomous and Electric Vehicle Concepts

et al. 2022

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Concept Development Process for Doors of Autonomous Vehicles

et al. 2021

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Vehicle doors have barely changed in recent decades, and nor has the car. Since autonomous driving will lead to changes in vehicles and how they are used, their doors will also have to be rethought. In the project UNICARagil, researchers from several universities in Germany design and build four prototypes of driverless and autonomous vehicles, which are developed based on a new and modular architecture. As part of this, we developed a concept including a prototype of an automated door system. In this paper, we present our concept development process adapted for door systems of autonomous vehicles. Based on the vehicle concept development process, it should help researchers and engineers to select and design new door concepts in an early phase. At the end, by means of an example, we present the prototype of our door concept as well as a boarding user study we carried out. This study helps evaluate and improve the boarding comfort of future door concepts.

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