Electricity: motive power systems – Constant motor current – load and/or torque control
Patent
1985-08-12
1986-12-16
Shoop, Jr., William M.
Electricity: motive power systems
Constant motor current, load and/or torque control
318489, 318624, 180 628, 180 644, G05B 1110
Patent
active
046299521
ABSTRACT:
A driving control method for an electromagnetic servo device including a driving control circuit adapted to generate a torque magnitude signal and a torque direction signal on the basis of an output signal from a torque detection mechanism for detecting torque acting on an input shaft in relation to an output shaft and to send an armature current of such a magnitude and of such a polarity as desirous in accordance with the torque magnitude and direction signals to an electric motor for additionally providing auxiliary torque for the output shaft, comprises a step of setting the width of a dead zone of the torque magnitude signal wider than that of a dead zone of the torque direction signal. An electromagnetic servo device including a driving control circuit adapted to generate a torque magnitude signal and a torque direction signal on the basis of an output signal from a torque detection mechanism for detecting torque acting on an input shaft in relation to an output shaft and to send a driving current, of such a magnitude and of such a polarity as desirous in accordance with the torque magnitude and direction signals, to an electric motor for additionally providing auxiliary torque for the output shaft, is improved in that the driving control circuit comprises a dead zone control mechanism for setting the width of a dead zone of the torque magnitude signal wider than that of a dead zone of the torque direction signal.
REFERENCES:
patent: 2754465 (1956-07-01), Brier
patent: 3571686 (1971-03-01), Henegar
patent: 4530413 (1985-07-01), Buike et al.
patent: 4556116 (1985-12-01), O'Neil
Honda Giken Kogyo Kabushiki Kaisha
Ro Bentsu
Shoop Jr. William M.
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