METHOD FOR CONTROLLING ACCELERATION/DECELERATION OF MOTOR

WIPO Patent Application WO/2002/033815

A1

A method for controlling acceleration/deceleration of a motor for mechanical operation is characterized by comprising the steps of receiving command variables including at least one of the target position, speed, trace shape, acceleration, calculating a step width ($g(D)T ) of an internal time using the received command variable, receiving a speed changing command from outside, calculating a variable internal step width ($g(s)Tn), from the value of the speed changing command and the $g(D)T, calculating a step width (dTn) of the internal time which is smoothly varied by performing an internal time acceleration/deceleration processing using a filter based on the $g(s)Tn, updating the internal time using the dTn, and calculating position data for every interpolation period applied to the motor based on the updated internal time. A software for realizing the same is also disclosed. By the method, even if the command speed is changed, no shock is applied to the motor, the acceleration/deceleration is smoothly performed, and thereby the precision of the trace can be improved.

HACHIYA TOMOAKI (JP)
NAKAYAMA MASASHI (JP)
KOMAZAWA YUUICHI (JP)

PCT/JP2000/007198

April 25, 2002

October 17, 2000

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TECHNOWAVE LTD (JP)
HACHIYA TOMOAKI (JP)
NAKAYAMA MASASHI (JP)
KOMAZAWA YUUICHI (JP)

G05B19/41; G05D3/12; H02P5/00; (IPC1-7): H02P5/00; G05B19/41; G05D3/12

JPH06110532A	1994-04-22
JPH11175130A	1999-07-02

Ikuta, Tetsuo (Jingumae 3-chome Shibuya-ku, Tokyo, JP)

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