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| DOI：https://doi.org/10.1007/s11768-018-7075-8 |
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| Algorithmic approaches for optimizing electronic control unit time using multi-rate sampling |
| Rajorshee RAHA,Pallab DASGUPTA,Soumyajit DEY |
| (Department of Computer Science and Engineering, Indian Institute of Technology Kharagpur, India) |
| Abstract: |
| With the emerging migration of automotive and other distributed control platforms from federated to integrated architectures,
the need for optimal utilization of ECU (electronic control unit) bandwidth will become a key requirement in the implementation
of embedded control features. This paper advocates the partitioning of the operating space of the plant and the use of minimal
sampling rates in each partition without compromising the overall quality of control. At the heart of the proposed methodology
are our algorithms that enable the choice of the partitions and the sampling rate for each partition. We demonstrate the efficacy
of our methods on two case studies, namely an anti-lock braking system and a lane departure warning system. We also study the
use of a supervisory controller that controls the switching among sampling rates for a combination of the two features. |
| Key words: Sampling period, adaptive control, stability, automotive software, embedded control system |
