Title:
CONTROL METHOD AND CONTROL ARRANGEMENT OF ELECTRIC MOTOR
Document Type and Number:
Japanese Patent JP2019193455
Kind Code:
A
Abstract:
To provide a technique for restraining synchronization shift of PWM carrier between multiple control units more inexpensively, without requiring hardware for exclusive use, such as PLL oscillation circuit.SOLUTION: In a control method including a polyphase winding motor (5) having two winding groups (8, 9), two inverters (3, 4) corresponding to the winding groups (8, 9), individually, and two controllers (1, 2) corresponding to the inverters (3, 4), individually, and controlling the winding groups (8, 9), individually, by applying a PWM pulse signal, outputted from the inverters (3, 4), in response to a drive control instruction outputted from the controllers (1, 2), control information is transmitted and received mutually between the two controllers (1, 2), and one controller out of the two controllers (1, 2) delays the timing for applying the PWM pulse signal to a corresponding winding group, on the basis of the reception timing of the control information from other controller.SELECTED DRAWING: Figure 1
Inventors:
MIZUNO SATOYUKI
Application Number:
JP2018084563A
Publication Date:
October 31, 2019
Filing Date:
April 25, 2018
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
H02M7/48; H02P25/22; H02P27/08
Domestic Patent References:
| JP2017169386A | 2017-09-21 | |||
| JP2016012985A | 2016-01-21 | |||
| JP2010130793A | 2010-06-10 | |||
| JP2018019525A | 2018-02-01 | |||
| JP2003153585A | 2003-05-23 |
Foreign References:
| US20090033274A1 | 2009-02-05 |
Attorney, Agent or Firm:
Goto Patent Office