A dynamic model of an x-by-wire actuator applicable in e.g. Electronic Power Steering, Brake-by-Wire or Electronic Parking Brake is presented. The actuator includes PMSM (Permanent Magnet Synchronous Machine), inverter, controller and a simplified mechanical load model. The PMSM is approximated by a set of differential equations describing each coil or each phase, with the possibility to simulate winding short circuit faults. A three-leg inverter model is designed, where all transistors and diodes inside may have separate short circuit or open circuit condition to simulate inverter faults. A field-oriented torque and speed cascade controller is implemented. In 'one fault at one time' failure condition, simulation results from model with independent coil equations and independent phase equations are investigated.
Fault model of an inverter-fed PM motor for x-by-wire systems
Fehlermodell eines über einen Umrichter gespeisten Dauermagnetmotors für elektronisch gesteuerte Fahrzeuge (X-by-Wire)
2006
6 Seiten, 13 Bilder, 3 Tabellen, 3 Quellen
Conference paper
Storage medium
English