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New Safety Mechanisms for MicroAutoBox II

Safety-critical applications, e.g., for highly automated driving, require additional mechanisms that monitor the correct execution of control functions on an ECU. To reach a higher level of monitoring even in early function development phases, the prototyping system MicroAutoBox® II provides several monitoring functions that are common in series production. In the RTI Watchdog Blockset 2.0 (Release 2016-B), the multistage watchdog mechanism was already extended by an integrated challenge-response mechanism to monitor the correct execution of computations on the real-time processor. Version 2.1 of the blockset (Release 2017-A) added various memory integrity checks (heap, stack, and ROM monitoring). The checks make it possible to detect memory faults during start and run time of the real-time application, and the system can be set to a predefined state if an error occurs. Another new feature is supply voltage monitoring, which lets users monitor the supply voltage levels of MicroAutoBox II. This way, they can intervene before a critical supply voltage level is reached.

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