Title:
モータ制御装置
Document Type and Number:
Japanese Patent JP6757494
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a motor controller that is able to apply a voltage corresponding to a two-phase voltage command value to an electric motor with high resolution even in a case where the electric motor is driven at high speed.SOLUTION: A motor controller comprises: a first PWM count arithmetic section 61 that counts high resolution PWM of each of phases with respect to each of PWM periods in an electric current control period by using a voltage command value of each of three phases in each of PWM periods in the electric current control period and using the PWM maximum count of high resolution, in the case of which the PWM maximum count corresponding to a PWM frequency is the PWM maximum count of the actual resolution, and the PWM maximum count obtained by multiplying the PWM maximum count of the actual resolution by predetermined times is the PWM maximum count of the actual resolution; and a final PWM count generating section 62 that generates the final PWM count of each phase corresponding to each PWM period on the basis of the high resolution PWM count of each phase relative to each PWM period.SELECTED DRAWING: Figure 6
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Inventors:
Hiroshi Sumasu
Application Number:
JP2016125969A
Publication Date:
September 23, 2020
Filing Date:
June 24, 2016
Export Citation:
Assignee:
JTEKT Corporation
International Classes:
H02P27/08; B62D6/00; H02M7/48; H02P21/06
Domestic Patent References:
| JP2002272184A | ||||
| JP7048955B2 | ||||
| JP10109656A | ||||
| JP2014187845A |
Attorney, Agent or Firm:
Patent Business Corporation Ai Patent Office