Motor control device and motor control method
AssigneeToyoda Koki Kabushiki Kaisha
InventorHiroshi Suzuki
Life of this patent
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Abstract
A motor control device includes an electric voltage command value calculation means for inputting an electric current command value every control cycle, calculating an electric current deviation integrated value by integrating an electric current deviation between the electric current command value and an actual electric current value at a coil of a motor, and calculating an electric voltage command value in accordance with the electric current deviation integrated value. The electric voltage command value calculation means controls the electric current deviation integrated value not to exceed a saturation electric voltage value, a value according to the maximum value of the electric voltage outputted from the inverter circuit to the motor.
Claims9
A motor control device comprising:
- an electric voltage command value calculation means for inputting an electric current command value every control cycle, calculating an electric current deviation integrated value by integrating an electric current deviation between the electric current command value and an actual electric current value at a coil of a motor, and calculating an electric voltage command value in accordance with the electric current deviation integrated value;
- a direct current power source portion for outputting a power source electric voltage of a direct current;
- an inverter circuit for outputting a pulse electric voltage generated by switching the power source electric voltage by a switching element to the motor;
- a control means for controlling a switching timing of the switching element based on the electric voltage command value;
- and
- the electric voltage command value calculation means controls the electric current deviation integrated value not to exceed a saturation electric voltage value, a value according to the maximum value of the electric voltage outputted from the inverter circuit to the motor.
A motor control method comprising a process of:
- inputting an electric current command value every control cycle;
- calculating an electric current deviation integrated value by integrating an electric current deviation between the electric current command value and an actual electric current value at a coil of a motor;
- calculating an electric voltage command value in accordance with the electric current deviation integrated value;
- outputting a pulse electric voltage generated by switching a power electric voltage of a direct current by a switching element of an inverter circuit based on the electric voltage command value to the motor;
- and
- controlling the electric current deviation integrated value not exceeding a saturation electric voltage value, a value in accordance with the maximum value of the electric voltage outputted from the inverter circuit to the motor.
Dependencies are inferred from the claim text.