Optimization of drivability control functions with two-stage rate limiters

Figel, Korbinian J.; Wobbe, Frank; Schultalbers, Matthias; Svaricek, Ferdinand

doi:10.1016/j.ifacol.2019.11.672

Cited by 1 publication

(2 citation statements)

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“…It describes the first torsional natural frequency of the powertrain where the combination of the vehicle body and wheel-tyre-subsystem oscillates against the drive side (motor, flywheel, transmission) [148]. Shuffle often occurs after Tip-In, Tip-Out and driveaway events and subsides after four to five cycles [56,59,69,168]. An approximate value for the shuffle frequency f sh is stated with the following formula [148, p. 10]:…”

Section: A Drivability Related Phenomenamentioning

confidence: 99%

“…35620-35622]. The second challenge is demonstrated in dealing with non-linearities in real-time simulation models, that are demanding in computational power like tyre [59,60,89,90], suspension [89,90,103] or friction models [9,99,141]. Finally, globalisation in vehicle development illustrates a very tough challenge for virtual validation implying global original equipment manufacturers (OEM), suppliers and distributed test facilities.…”

Section: A a Summary Of X-in-the-loop Approaches To Datementioning

confidence: 99%

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Methods for Virtual Validation of Automotive Powertrain Systems in Terms of Vehicle Drivability—A Systematic Literature Review

2023

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For the last two decades, an extensive transition in automotive X-in-the-loop activities from isolated electronic control units to real-time related, geographically distributed validation tasks has occurred. Benefits are strengthening frontloading, enabling concurrent engineering and reducing prototypes and testing efforts. As a downside, comprehensive system understanding and adequate simulation models must be provided. New technological trends like software-over-the-air-updates denote a continuous validation process even after the start of production. The present review focuses on the virtual validation of vehicle longitudinal dynamics. This exemplary field of application receives more and more attention as electrification of the vehicle powertrain accelerates, and this property directly influences the vehicle DNA. A systematic review process based on the PRISMA workflow has been conducted, focusing on drivabilityrelated powertrain applications. The investigation reveals the following trends: First, increasing complexity of virtualisation methods and models for validation activities influenced by vehicle-to-everything and geographically distributed development. Second, missing standards for virtual validation and proof of representativeness for combined real-virtual testing. In addition, many studies only contemplate the advantages of hardware-in-the-loop-driven development, disregarding crucial limitations and risks for such approaches. In conclusion, there is no longer the question of whether to validate virtually but how to comprehensible realise virtual validation.

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Section: A Drivability Related Phenomenamentioning

confidence: 99%