This thesis addresses the design of low-level tests for the electronic drive of brushless motors. It presents established guidelines in the automotive industry, such as the ASPICE model, as well as the standards of OEMs like Volkswagen and Stellantis. The thesis also draws upon the ISO 16750 and ISO 26262 standards.
The architecture of a driver along with the units it comprises are depicted. The operation of the reverse polarity protection unit is examined in more detail. For this unit, three tests are developed in accordance with the OEMs' standard tests, which are designed at a higher level. While these standards treat the system as a black box, the newly developed tests evaluate the unit's operation on the lowest level. The criteria are derived from system requirements, datasheets and simulations.
The test for resistance to reverse polarity is carried out on a circuit of the existing dirver. The results of the new approach are evaluated and compared with those obtained from the standard test. The findings are presented along with the potential of applying the tests to similar architectures through parametrisation.
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