Design and implementation of a Data Distribution Service blockset for an SAE Benchmark electric vehicle

Abstract

We designed a SIMULINK vehicle blockset that corresponds to the Society of Automotive Engineers (SAE) benchmark. We used the Embedded Matlab tool for implementing this blockset in order to generate a portable C standard code. As a first level of CBSE, modules of the realized blockset are connected directly each to the other. We tested the exchanged messages in order to verify their validity as described by the standard without regarding the targets where the modules will be implemented. We introduced a second level of abstraction where we connect each module to a Simulink DDS blocks to take advantage of the QoS parameters, events generated in response to faults or exceeding of fixed parameters and calls to callback functions. These functionalities are managed by DDS itself without involving the realized modules in the first level of CBSE. Only the modules of the powertrain and chassis domains are connected to FlexRay bus. The other domains (Body and Multimedia) can be connected to the Ethernet network with minimum latency budget.