Motor control circuit, motor drive control apparatus and control method for motor control circuit

Patent metadata

Field	Value
Publication number	US-11658592-B2
Application number	US-202117244008-A
Country	US
Kind code	B2
Filing date	Apr 29, 2021
Priority date	May 20, 2020
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

The present disclosure provides a motor control circuit enabled to change or adjust functions to be implemented to suppress an increase in cycle time during mass production. A motor control circuit according to an exemplary embodiment of the present disclosure is a motor control circuit to control a motor driver including a first non-volatile memory and a second non-volatile memory, and the first non-volatile memory stores a control algorithm and a first parameter group to be used by the control algorithm of the motor control circuit, and the second non-volatile memory is enabled to store a second parameter group to be used by the control algorithm.

First claim

What is claimed is:

1. A motor control circuit to control a motor driver, comprising:
a first storage region; and
a second storage region, wherein
the first storage region stores a control algorithm of the motor control circuit and a first parameter group to be used by the control algorithm,
the second storage region can store a second parameter group to be used by the control algorithm,
the second storage region comprises a specification parameter to specify whether the first parameter group or the second parameter group is used by the control algorithm to execute a motor control program, and
the control algorithm reads a value of the specification parameter at a startup and executes the motor control program using the parameter group specified with the read value.

2. The motor control circuit according to claim 1 , wherein
when the specification parameter is set to an initial value, the control algorithm executes the motor control program using the first parameter group.

3. The motor control circuit according to claim 1 , wherein
the control algorithm executes the motor control program using either the first parameter group or the second parameter group to output a drive control signal for controlling of driving of a motor to the motor driver.

4. A motor drive control apparatus, comprising:
the motor control circuit according to claim 1 ; and
a motor driver configured to drive the motor based on a drive control signal outputted from the motor control circuit.

5. A control method for a motor control circuit comprising a first storage region storing a motor control circuit control algorithm and a first parameter group to be used by the control algorithm and a second storage region enabled to store a second parameter group to be used by the control algorithm, and configured to output a drive control signal to a motor driver, the method comprising:
referencing a value of a specification parameter in the second storage region when the control algorithm is started;
determining whether the first parameter group or the second parameter group is used by the control algorithm to execute a motor control program based on the value of the specification parameter; and
executing of the control algorithm the motor control program using the determined parameter group.

6. The control method for a motor control circuit according to claim 5 , wherein
in the determining, when the value of the specification parameter is set to an initial value, the control algorithm determines to execute the motor control program using the first parameter group stored in the first storage region.

7. A motor control circuit to control a motor driver, comprising:
a first storage region; and
a second storage region, wherein
the first storage region stores a control algorithm of the motor control circuit and a first parameter group to be used by the control algorithm,
the second storage region can store a second parameter group to be used by the control algorithm, and
the control algorithm executes the motor control program using either the first parameter group or the second parameter group to output a drive control signal for controlling of driving of a motor to the motor driver.

8. A motor drive control apparatus, comprising:
the motor control circuit according to claim 7 ; and
a motor driver configured to drive the motor based on a drive control signal outputted from the motor control circuit.

Assignees

• Minebea Mitsumi Inc

Inventors

• Kaidu Hiroyuki
• Aoki Masato
• Kitano Takamichi
• Suzuki Takahiro

Classifications

• H02P6/28 Primary

  Arrangements for controlling current (H02P6/10 takes precedence) · CPC title

• G05B19/042

  using digital processors (G05B19/05 takes precedence) · CPC title

• F04D27/004

  by varying driving speed · CPC title

• G05B2219/23399

  Adapt set parameter as function of measured conditions · CPC title

• H02P23/14

  Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage · CPC title