Electricity: motive power systems – Positional servo systems – 'reset' systems
Patent
1998-02-27
1999-06-29
Masih, Karen
Electricity: motive power systems
Positional servo systems
'reset' systems
318636, 318561, 318571, 318616, 318573, 318618, 364178, G05B 1136
Patent
active
059173017
ABSTRACT:
Methods and systems consistent with the invention generate a motion profile of a motor. A reference acceleration profile, a reference velocity profile, and a reference displacement profile are first defined. Displacement-velocity data defining displacement data with respect to velocity data is then stored in a memory. A plurality of conversion constants which include a maximum velocity ratio K1, a maximum acceleration ratio K2, and a displacement conversion constant K3, are calculated, are then calculated using following equations: ##EQU1## where A.sub.max represents a maximum acceleration value in the reference acceleration profile, V.sub.max represents a maximum velocity value in the reference velocity profile, a.sub.max represents a maximum acceleration value in the generated profile, and V.sub.max represents a maximum velocity data in the profile to be generated. The system then determines a position data of the motor and maps the position data into a reference displacement data. A reference velocity data corresponding to the reference displacement data is then read from the memory. Finally, a driving velocity data is calculated from the reference velocity data.
REFERENCES:
patent: 4554497 (1985-11-01), Nozawa et al.
patent: 4555758 (1985-11-01), Inaba et al.
Masih Karen
Samsung Aerospace Industries Ltd.
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