Joachim Fox

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In theory, software product line engineering has reached a mature state. In practice though, implementing a variability management approach remains a tough case-by-case challenge for any organization. To tame the complexity of this undertaking, it is inevitable to handle variability from multiple perspectives and to manage variability consistently across(More)
The present paper investigates the influence of noise on the estimation results for max-plus-linear systems. These systems are a suitable description for many processes modelled by discrete event systems. It is shown that measurements corrupted by Gaussian noise lead to a bias in the estimated values. In addition a correction factor is determined that(More)
In this paper, we share practical experiences from an ongoing effort towards adopting a feature-centric method that enhances reuse of requirements at TRW Automotive's slip control system department (based in Koblenz, Germany). After introducing identified challenges in detail, key solution factors and a technical reuse concept for managing and deriving(More)
This paper presents the design of a flatness-based control principle for an adaptive load limiting restraint system developed by Continental. Differential flatness is a property found in certain nonlinear, time-invariant multivariable systems which allows effective model-based open loop control, as it facilitates the calculation of the inputs corresponding(More)
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