CONTROLLER FOR LINEAR SYNCHRONOUS MOTOR

Japanese Patent JP3193270

B2

PROBLEM TO BE SOLVED: To assure the smooth running of a body to be driven by comparing a first forecast thrust command at an arbitrary position with a first thrust command computed by a first thrust computing element at the same position where thus command was computed and by providing a forecast thrust correcting element which outputs a correction command for correcting a second forecast thrust command.
SOLUTION: A first forecast thrust command 43 which is for obtaining an approach thrust command for a body to be driven 20 when forecast thrust computing elements 38 and 42 enter a second propulsion coil 32 section at an arbitrary position of a first propulsion coil 12 section is determined. A second forecast thrust command 39 is computed from the first position signal and the weight of the body to be driven 20, which is for obtaining an approach thrust command at another position of the first propulsion coil 12 section at the side of the second propulsion coil 32 section away from the position where the first forecast thrust command 43 was determined. And a forecast thrust correcting element 45 compares the first forecast thrust command 43 at an arbitrary position with the first thrust command 7 computed by the first thrust computing element 5 and the second forecast thrust command 39 is corrected.

JP4772356	Control method when the converter voltage of the inductive current collector is saturated
JP2884262	INDUSTRIAL APPLICABILITY [Title of Invention] Horizontal retracting and vertical holding structure of a transport basket

Hideki Souhara
Junichi Kitano

JP16911795A

July 30, 2001

July 04, 1995

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Mitsubishi Electric Corporation

B60L13/03; H02P25/06; H02P25/064; (IPC1-7): B60L13/03; H02P5/00

JP4317503A
JP583807A
JP787620A
JP6343501A

Masuo Oiwa

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