A low-vibration fault-tolerant current algorithm for six-phase permanent magnet motors under open-phase faults is provided. When a six-phase permanent magnet motor is supplied through a full-bridge configuration, the vibration performance of the motor dramatically deteriorates if the open-phase fault occurs. The types of open-phase faults include one-phase open-phase, adjacent two-phase open-phase, non-adjacent two-phase open-phase, and at most three-phase open-phase faults. To suppress the deterioration of the vibration response when open-phase fault occurs, the remaining phase magnetomotive force is reconfigured based on the reverse magnetomotive force in the synthesized magnetomotive force from the residual phases under different open-phase fault types, and the remaining phase currents are adjusted to maintain normal vibration response.

Various examples in accordance with the present disclosure provide systems, apparatuses, methods, and computer program products associated with detecting phase fault in a motor, such as unbalance phase and phase loss fault.

A power module includes: a first substrate having an outer surface and an inner surface; a semiconductor die coupled to the inner surface of the first substrate; a second substrate having an outer surface and an inner surface, the semiconductor die being coupled to the inner surface of the second substrate; and a flex circuit coupled to the semiconductor die.

A motor control device includes: a motor driver that supplies electric power to a motor having windings of plural phases, the motor driver including, for each phase, an upper drive element and a lower drive element connected in series; a motor terminal voltage detector that detects a motor terminal voltage value based on a voltage of a motor terminal for each phase of the motor; a drive element fault determinator that performs fault determination for the upper drive elements and the lower drive elements, based on a voltage value across each drive element, and outputs a result of the fault determination; and a short/open-circuit fault determinator that, when the result of the fault determination indicates that there is a fault, determines whether the fault is a short-circuit fault or an open-circuit fault, for the upper drive elements and the lower drive elements, based on the motor terminal voltage value.

Various examples in accordance with the present disclosure provide systems, apparatuses, methods, and computer program products associated with detecting phase fault in a motor, such as unbalance phase and phase loss fault.

A method of controlling a multi-phase electric machine includes implementing a first control method to control the operation of a six-phase machine that is configured as a combination of two three-phase machines. The method also includes determining whether a fault exists in the six-phase machine. In response to determining that the fault exists in the six-phase machine, the method includes implementing a second and different control method to control the operation of the six-phase machine.