Patent ID: 11001211

Abstract:
The invention relates to a method for secure signal manipulation for testing integrated safety functionalities and to a system for carrying out the method. In the first step 100, an input signal of a software-based motor vehicle component rated as having a hazard level of ASIL A to ASIL D according to ISO standard 26262 is selected; in the second step 200, a test signal is determined by modifying the selected input signal; in the third step 300, an external signal manipulation unit is provided for verification and validation tests of the safety function in a QM context 2 according to ISO standard 26262; in the fourth step 400, the connection between the motor vehicle component and the external signal manipulation unit is established; in the fifth step 500, a safety function of the motor vehicle component is tested; in the sixth step 600, the test result is checked by means of a third test signal W3; in the seventh step 700, the test signals are, if necessary, modified for as long as is required until the relevant output signal corresponds to the target output signal; in the eighth step 800, the tested safety function is enabled. The method according to the invention makes possible efficient, complex, flexible and cost-effective signal manipulation in software-based vehicle components while also improving the functional safety thereof.