Databased Architecture Modeling for Battery Electric Vehicles

Nicoletti, Lorenzo; Schmid, Werner; Lienkamp, Markus

doi:10.1109/ever48776.2020.9242995

Cited by 3 publications

(9 citation statements)

References 15 publications

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“…The elements in which a certain difference between ICEVs and BEVs is to be expected, e.g., underbody height (UH) and W20-1, are assessed separately by considering only BEVs. In addition, the database is implemented in the form of a dynamic database, as presented in [20] (p. 6), thus permitting the data to be continuously updated. By way of this implementation, it is possible to add new BEVs to the database and automatically update the models, thus ensuring that the dimensional chains are always up-to-date.…”

Section: Discussionmentioning

confidence: 99%

“…A vehicle architecture is defined by its main features of dimensional concept, topology, components, and dimensional chains [20]. For the scope of this paper, the relevant features are dimensional concept and dimensional chains.…”

Section: Methodsmentioning

confidence: 99%

“…The dimensional concept represents one of the first steps of the vehicle architecture design. It consists of two main tasks [20]: This paper opens with a description of the relevant standards and methods for defining the passenger compartment layout. We then present the identified dimensional chains (in the X-, Y-, and Z-directions) that describe the passenger compartment.…”

Section: Methodsmentioning

confidence: 99%

“…The dimensional concept represents one of the first steps of the vehicle architecture design. It consists of two main tasks [20]:…”

Section: Methodsmentioning

confidence: 99%

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Derivation of Geometrical Interdependencies between the Passenger Compartment and the Traction Battery Using Dimensional Chains

Nicoletti

Mirti

Schockenhoff

et al. 2020

WEVJ

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Dimensional chains are the basis for testing the feasibility of vehicle architectures in the early development phase since they allow for parametrical vehicle modeling. Parametrical modeling is employed in the early development of the vehicle in order to enable the estimation of the space available for powertrain components. For battery electric vehicles (BEVs), new dimensional chains have increased relevance because of the geometrical interdependencies between the traction battery and the passenger compartment. The passenger compartment and traction battery share the same position in the vehicle, i.e., between the axles, which leads to a conflict between these two components. Furthermore, the passenger compartment dimensions are needed to size components like heating, ventilation, and air conditioning (HVAC), the energy consumption of which in turn influences the required battery capacity. In order to describe these interdependencies, we identify a set of dimensional chains and derive a passenger compartment volume estimation model that can be employed in the early development phase of the vehicle design. We further analyze the single elements of the dimensional chain and present typical values for each element.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The dimensional concept represents one of the first steps of the vehicle architecture design. It consists of two main tasks [20]:…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Derivation of Geometrical Interdependencies between the Passenger Compartment and the Traction Battery Using Dimensional Chains

Nicoletti

Mirti

Schockenhoff

et al. 2020

WEVJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…A vehicle architecture consists of four architectural features: the dimensional concept, the powertrain topology, the component models, and the dimensional chains [4]. Figure 2 shows the architectural features.…”

Section: Vehicle Architecturementioning

confidence: 99%

Design Parameters for the Early Development Phase of Battery Electric Vehicles

Nicoletti

Mayer

Brönner

et al. 2020

WEVJ

Self Cite

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The derivation of a battery electric vehicle (BEV) architecture represents a challenging task for car manufacturers. For the early development of combustion engine architectures, the required design parameters can be derived from the analysis of previously-built model series. Regarding BEV architectures, the manufacturers do not yet have a reference series of vehicles on the basis of which they can derive the essential design parameters. Therefore, these parameters are mainly estimated at high cost in the early development phase. To avoid cost-intensive changes in the further course of development it is crucial to choose the right set of design parameters. For this reason, the aim of this paper is the identification of a minimum set of design parameters, derived from the current state-of-the-art of vehicle development by a structured literature comparison. We group the results according to our definition of vehicle architecture and discuss each identified parameter to explain its relevance. The sum of all parameters presented in this paper builds a minimum set of design parameters, which can be employed as a guideline for the definition of BEV architectures in the early development stage.

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An Estimation of the Lightweight Potential of Battery Electric Vehicles

et al. 2021

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Although battery electric vehicles (BEVs) are locally emission-free and assist automakers in reducing their carbon footprint, two major disadvantages are their shorter range and higher production costs compared to combustion engines. These drawbacks are primarily due to the battery, which is generally the heaviest and most expensive component of a BEV. Lightweight measures (strategies to decrease vehicle mass, e.g., by changing materials or downsizing components) lower energy consumption and reduce the amount of battery energy required (and in turn battery costs). Careful selection of lightweight measures can result in their costs being balanced out by a commensurate reduction in battery costs. This leads to a higher efficiency vehicle, but without affecting its production and development costs. In this paper, we estimate the lightweight potential of BEVs, i.e., the cost limit below which a lightweight measure is fully compensated by the cost savings it generates. We implement a parametric energy consumption and mass model and apply it to a set of BEVs. Subsequently, we apply the model to quantify the lightweight potential range (in €/kg) of BEVs. The findings of this paper can be used as a reference for the development of cheaper, lighter, and more energy-efficient BEVs.

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Databased Architecture Modeling for Battery Electric Vehicles

Cited by 3 publications

References 15 publications

Derivation of Geometrical Interdependencies between the Passenger Compartment and the Traction Battery Using Dimensional Chains

Derivation of Geometrical Interdependencies between the Passenger Compartment and the Traction Battery Using Dimensional Chains

Design Parameters for the Early Development Phase of Battery Electric Vehicles

An Estimation of the Lightweight Potential of Battery Electric Vehicles

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