Motor control device
US-2015326151-A1 · Nov 12, 2015 · US
Control device
US9806644B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9806644-B2 |
| Application number | US-201414911684-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 18, 2014 |
| Priority date | Sep 24, 2013 |
| Publication date | Oct 31, 2017 |
| Grant date | Oct 31, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
A control device that controls an inverter interposed between a DC power source and an AC rotary electric machine to perform power conversion between DC power and AC power, wherein the inverter includes a plurality of sets of an upper switching element and a lower switching element connected in series with each other between positive and negative electrodes on the DC side and controlled so as to be turned on and off in a complementary manner; and the control device executes short-circuiting processing, in which all the upper switching elements or all the lower switching elements are controlled so as to be turned on, while the AC rotary electric machine is stationary.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control device that controls an inverter interposed between a DC power source and an AC rotary electric machine to perform power conversion between DC power and AC power, wherein the inverter includes a plurality of sets of an upper switching element and a lower switching element connected in series with each other between positive and negative electrodes on the DC side and controlled so as to be turned on and off in a complementary manner; and the control device executes short-circuiting processing, in which all the upper switching elements or all the lower switching elements are controlled so as to be turned on, while the AC rotary electric machine is stationary after a rotor of the AC rotary electric machine, which has been rotating, is stopped. 2. The control device according to claim 1 , wherein the short-circuiting processing is executed continuously after a stop position of a rotor of the AC rotary electric machine is detected at a time point when the rotor of the AC rotary electric machine, which has been rotating, is stopped or afterwards until rotation of the rotor of the AC rotary electric machine is started. 3. The control device according to claim 2 , wherein the stop position of the rotor of the AC rotary electric machine is detected by a detecting method that utilizes a saliency of the rotor of the AC rotary electric machine. 4. The control device according to claim 2 , wherein all the lower switching elements are controlled so as to be turned on in the short-circuiting processing. 5. The control device according to claim 4 , wherein the AC rotary electric machine is a drive rotary electric machine for a hydraulic pump that generates a control hydraulic pressure for a vehicle drive transmission device. 6. The control device according to claim 2 , wherein the AC rotary electric machine is a drive rotary electric machine for a hydraulic pump that generates a control hydraulic pressure for a vehicle drive transmission device. 7. The control device according to claim 1 , wherein all the lower switching elements are controlled so as to be turned on in the short-circuiting processing. 8. The control device according to claim 7 , wherein the AC rotary electric machine is a drive rotary electric machine for a hydraulic pump that generates a control hydraulic pressure for a vehicle drive transmission device. 9. The control device according to claim 1 , wherein the AC rotary electric machine is a drive rotary electric machine for a hydraulic pump that generates a control hydraulic pressure for a vehicle drive transmission device.
Assignees
Inventors
Classifications
Arrangements for stopping · CPC title
- H02P3/22Primary
by short-circuit or resistive braking · CPC title
holding the rotor in a fixed position after deceleration · CPC title
Supply of control fluid; Pumps therefor · CPC title
driven by internal-combustion engines · CPC title
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Frequently asked questions
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- What does patent US9806644B2 cover?
- A control device that controls an inverter interposed between a DC power source and an AC rotary electric machine to perform power conversion between DC power and AC power, wherein the inverter includes a plurality of sets of an upper switching element and a lower switching element connected in series with each other between positive and negative electrodes on the DC side and controlled so as t…
- Who is the assignee on this patent?
- Aisin Aw Co
- What technology area does this patent fall under?
- Primary CPC classification H02P3/22. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Oct 31 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).