CPC H02K 1/278 (2013.01) [H02K 1/02 (2013.01); H02K 1/2773 (2013.01); H02K 3/12 (2013.01); H02K 21/24 (2013.01); H02K 1/148 (2013.01); H02K 1/17 (2013.01); H02K 3/04 (2013.01); H02K 2213/03 (2013.01)] | 17 Claims |
1. An electric machine comprising:
a toroidal magnetic cylinder including:
a first magnetic tunnel segment having a NNNN magnetic pole configuration,
a second magnetic tunnel segment having a SSSS magnetic pole configuration positioned circumferentially adjacent to the first magnetic tunnel,
a coil assembly positioned within the toroidal magnetic cylinder, the coil assembly including a plurality of coils wherein the first or second magnetic tunnel segment surrounds a first number of coils of the coil assembly,
wherein the coil assembly is configured for the first number of coil phases and the plurality of coils is divided to create a subgroups of coils wherein each subgroup of coils is assigned to one of the first number of coil phases;
a controller in electrical communication with the coil assembly and the plurality of parameter detection sensors, the controller including a processor and a memory coupled to the processor, the memory containing instructions for:
monitoring a parameter value of the electric machine;
determining if the parameter value has reached a first target value; if not, continue to monitor the parameter value;
if the parameter value has reached the first target value, emulating a second number of coil phases for the coil assembly by simultaneously energizing a first subgroup of coils and a second subgroup of coils such that the first subgroup of coils and second subgroup of coils to act as members of a single coil phase group.
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