Electricity: motive power systems – Constant motor current – load and/or torque control
Reexamination Certificate
2007-08-02
2010-11-09
Benson, Walter (Department: 2837)
Electricity: motive power systems
Constant motor current, load and/or torque control
C318S434000, C318S400020, C318S400140, C318S400380
Reexamination Certificate
active
07830106
ABSTRACT:
A controller for a motor that can set an induced voltage constant of a motor of a double rotor type according to an operational state of the motor and expand the controllable range of the motor. The controller may include a command calculator that calculates a command value of the induced voltage constant of a motor based on the output voltage of a direct-current power supply, the number of revolutions Nm of the motor and a torque command in such a manner that the magnitude of a vector sum of a d-axis current and a q-axis current that have to be supplied in order to produce the torque according to the torque command is minimized, and a phase difference controller that calculates a command value of a rotor phase difference according to the command value and outputs the command value to an actuator to change the rotor phase difference.
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Atsuo Kawamura et al, “Analysis on the Two Axis Motor (Super Motor) for Electric Vehicles”, In: Motion Control, 2004 AMC '04, the 8thIEEE International Workshop on 25-58 March, pp. 71-74.
Atarashi Hirofumi
Fukuchi Masanari
Tsukamoto Kenji
Arent & Fox LLP
Benson Walter
Glass Erick
Honda Motor Co. Ltd
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