CPC Subgroup
H02P 21/14 Estimation or adaptation of machine parameters, e.g. flux, current or voltage
Full Title
Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation > Estimation or adaptation of machine parameters, e.g. flux, current or voltage
5 direct subcodes
Child Classifications
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- H02P 21/16 Estimation of constants, e.g. the rotor time constant
- H02P 21/18 Estimation of position or speed
- H02P 21/20 Estimation of torque
Top Applicants
Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 24,515
- MITSUBISHI ELECTRIC CORPORATION JP 11,346
- SIEMENS DE 9,026
- ROBERT BOSCH DE 9,005
- SAMSUNG ELECTRONICS COMPANY KR 6,729
- GUANGDONG POWER GRID CORPORATION 5,740
- DENSO CORPORATION JP 5,077
- LG ELECTRONICS KR 5,041
- LG INNOTEK COMPANY KR 4,442
- TOYOTA MOTOR CORPORATION 4,349