Motor driving control method and motor driving control...

Details Motor driving control method and motor driving control... Motor driving control method and motor driving control...

2006-06-02

2010-11-30

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

C318S400150, C318S461000, C318S489000

Reexamination Certificate

active

07843160

ABSTRACT:
A motor driving control method in which when the steering angular velocity is lower than a predetermined reference angular velocity, an actual motor drive current is inferred from a back electromotive voltage and an applying voltage in a three-phase brushless motor, and a limitation on the peak level of each of three-phase alternating current command waves is mitigated by permitting the interval between a pair of intersection points of a peak area of each of the three-phase alternating current command waves with a peak point neighborhood of a triangle wave to become approximately the same length as a dead time.

REFERENCES:
patent: 6427105 (2002-07-01), Matsushita
patent: 6864662 (2005-03-01), Recker
patent: 2006/0113938 (2006-06-01), Arai
patent: 2003 324985 (2003-11-01), None
patent: 2004 58768 (2004-02-01), None
patent: 2004 117070 (2004-04-01), None
Sugimoto, et al., “Theory and Practice of AC Servomotor System”, Sougou-Denshi, pp. 73-77, 1990.

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