Electric Motor Control Device
US-2015091483-A1 · Apr 2, 2015 · US
Motor control device
US9595899B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9595899-B2 |
| Application number | US-201314409645-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 18, 2013 |
| Priority date | Jun 19, 2012 |
| Publication date | Mar 14, 2017 |
| Grant date | Mar 14, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
A motor control device capable of executing a start mode that takes into consideration both the start performance with respect to a residual load and the life of a drive circuit is provided. A motor control device for executing a start mode in which a rotor is rotated by forced commutation control: stores a current value at the time when a stop command to a synchronous motor is issued; and decides, when a start command to the synchronous motor is issued after the issuance of the stop command, a target current value based on the stored current value in the start mode in response to the start command.
First claim
Opening claim text (preview).
The invention claimed is: 1. A motor control method for controlling a synchronous motor with a start mode in which a rotor is rotated by forced commutation control, the motor control method comprising: storing a current value at the time when a stop command to the synchronous motor is issued; storing a rotation speed value when the stop command to the synchronous motor is issued; and deciding a target current value in the start mode based on the stored current value and the stored rotation speed value, when a start command to the synchronous motor is issued after the issuance of the stop command. 2. A motor control method for controlling a synchronous motor with a start mode in which a rotor is rotated by forced commutation control, the motor control method comprising: storing a current value at the time when a stop command is issued; and deciding, when a start command to the synchronous motor is issued after the stop command to the synchronous motor is issued, a target current value in the start mode based on a time from the stop command to the start command and based on the stored current value. 3. A motor control method for controlling a synchronous motor with a start mode in which a rotor is rotated by forced commutation control, the motor control method comprising: storing a current value at the time when a stop command to the synchronous motor is issued; and deciding a time until end of the start mode based on the stored current value, when a start command to the synchronous motor is issued after the issuance of the stop command. 4. The motor control method according to claim 3 , wherein the time until the end of the start mode is decided by changing, depending on the stored current value, a rotation speed value for determining the end of the start mode. 5. The motor control method according to claim 3 , wherein the time until the end of the start mode is decided by changing, depending on the stored current value, acceleration of a rotation speed in the start mode. 6. The motor control method according to claim 3 , further comprising: deciding a target current value in the start mode, based on the stored current value.
Assignees
Inventors
Classifications
- H02P6/21Primary
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Frequently asked questions
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- What does patent US9595899B2 cover?
- A motor control device capable of executing a start mode that takes into consideration both the start performance with respect to a residual load and the life of a drive circuit is provided. A motor control device for executing a start mode in which a rotor is rotated by forced commutation control: stores a current value at the time when a stop command to a synchronous motor is issued; and deci…
- Who is the assignee on this patent?
- Sanden Corp, Sanden Holdings Corp
- What technology area does this patent fall under?
- Primary CPC classification H02P6/21. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 14 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).