Driveability analyses on a chassis dynamometer

Nehlsen, Markus; Jedicke, Frank; Bogner, Erik; Schöggl, Peter

doi:10.1007/bf03224824

Cited by 4 publications

(1 citation statement)

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“…In order to reduce costs and test duration, it is helpful to reduce the number of measurements performed on a test track or in real traffic situations. Roadto-rig solutions [17] or simulations [18] appear to be very promising. When using these methods, calibration engineers cannot rely on their experience to evaluate the driveability since important physical information is not perceptible (e.g., longitudinal, lateral and vertical acceleration).…”

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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Section: Introductionmentioning

confidence: 99%