Synthese, Auslegung und Bewertung von zukünftigen Antriebsstrangkonzepten

Sturm, Axel; Piechottka, Hendrik; Küçükay, Ferit; Grams, Sebastian

doi:10.1007/s35148-016-0138-6

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…Then, road performance requirements for the powertrain and efficiency requirements for the hybrid functions were deduced. Alongside the requirements and demands from statutory cycles, such as the New European Driving Cycle (NEDC) and Worldwide harmonized Light vehicles Test Cycle (WLTC), requirements from direct customer operation were analyzed and integrated using the 3D methodology from the Institute of Automotive Engineering (IAE) [17].…”

Section: The Virtual Development Chainmentioning

confidence: 99%

“…The powertrain concepts investigated are also evaluated with respect to their scope for integration into modular platforms and the corporate strategy. Using this methodical and reproducible approach, by means of synthesizing innovative, electrified powertrain concepts, and their evaluation with virtual customer use of the 3D-method (acronym for the methodical consideration of driver, driven vehicle, and driving environment) of the Institute of Automotive Engineering (IAE) at the Technical University of Braunschweig [17], future powertrain concepts are identified.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Powertrain Design through a Virtual Development Process

Piechottka

Küçükay

Kercher

et al. 2018

WEVJ

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The ever more stringent global CO2 and pollutant emission regulations imply that the optimization of conventional powertrains can only provide partial reductions in fleet emissions. Vehicle manufacturers are therefore responding by increasing the electrification of their powertrain portfolios. This in turn, results in higher levels of electrification of the individual powertrain units. The increase in electric power leads to a comprehensive range of possible technologies—from 48 V mild hybrids to pure electric concepts. The powertrain topology and the configuration of the electrical components of a hybrid powertrain play a decisive role in determining the overall efficiency when considering the individual market requirements. Different hybrid functions as well as performance and customer requirements are determined from statutory cycles and in customer operation. A virtual development chain that is based on MATLAB/Simulink then represents the steps for the identification, configuration, and evaluation of new electrified powertrains. The tool chain presented supports powertrain development through automated conceptualization, design, and evaluation of powertrain systems and their components. The outcome of the entire tool chain is a robust concept decision for future powertrains. Using this methodical and reproducible approach, future electrified powertrain concepts are identified.

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Section: The Virtual Development Chainmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Powertrain Design through a Virtual Development Process

Piechottka

Küçükay

Kercher

et al. 2018

WEVJ

Self Cite

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“…5 By co-simulations, different technical fields can be considered simultaneously, as shown in Klein et al, 6 to support the system layout process by comparing and evaluating different powertrain topologies or dimensionings. 7 The ''Front Loading'' approach can be used to optimize the system validation by realizing system tests at project phases, where the single components still cannot be physically connected to each other. Therefore, the individual components are driven separately on component test benches.…”

Section: Introductionmentioning

confidence: 99%

A simulation-based case study for powertrain efficiency improvement by automated driving functions

Plum

Wegener

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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An increasing level of driving automation and a successive electrification of modern powertrains enable a higher degree of freedom to improve vehicle fuel efficiency and reduce pollutant emissions. Currently, both domains themselves, driving automation as well as powertrain electrification, face the challenge of a rising development complexity with extensive use of virtual testing environments. However, state-of-the-art virtual testing environments typically strictly focus on just one domain and neglect the other. This paper shows the results of a simulation-based case study considering both domains simultaneously. The influence of energy saving automated functionalities on a conventional, a hybrid, and a pure electric powertrain is investigated for a carefully selected inner-city driving scenario. The vehicle simulation models for the different powertrain configurations are calibrated using test bench results and vehicle measurements. A model predictive acceleration controller is developed for realizing the speed optimization function. By considering traffic conditions such as traffic light schedules and a preceding vehicle as the boundary conditions, unnecessary accelerations and decelerations are avoided to reduce the energy demand. The case study is realized by applying this function to the three powertrains variants. As a final result, a clear difference in energy demand is observed: the hybrid powertrain benefits the most in terms of energy demand reduction in the given use case. The results clearly underscore that in future vehicle development programs, the powertrain and the real-world driving functionalities have to be optimized simultaneously to minimize the energy demand during everyday vehicle operation.

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