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DIFF Subgroup
H02P 21/32

Determining the initial rotor position (H02P21/34 takes precedence)

Introduced: January 2016

Title

Titles differ between systems:

IPC: Determining the initial rotor position

CPC: Determining the initial rotor position (H02P21/34 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation > Vector control not involving the use of rotor position or rotor speed sensors > Determining the initial rotor position

CPC:

Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation > Vector control not involving the use of rotor position or rotor speed sensors > Determining the initial rotor position (H02P21/34 takes precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.