Patent №
US 5,486,729
Granted
1996-01-23
Filed 1993
Owner
HITACHI, LTD.
Lab
—
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08026760
A controller of magnetic bearing controls the rotor speed with a reduced drive current while suppressing the rotor vibration. The controller implements the ABS control, N-cross control, N-straight control and FF control in proper combination in addition to the basic PID control. A computer in the controller determines the activation of each control in accordance with a predetermined table of control plan in response to the detected rotor speed.
AI classification
Ownership
HITACHI, LTD.
assignment · 64650651
Assignors
MATSUSHITA, OSAMI, YONEYAMA, MITSUHO, TAKAHASHI, NAOHIKO, FUKUSHIMA, YASUO, HIROSHIMA, MINORU, KANEKI, TADASHI, ABE, YOSHIAKI, SAKANASHI, NAOFUMI
On an employer assignment, the assignors are typically the inventors.