Control device of a powertrain with a centrifugal pendulum damper
US-9791043-B2 · Oct 17, 2017 · US
Control device of a powertrain with a centrifugal pendulum damper
US10240659B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10240659-B2 |
| Application number | US-201615368086-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2016 |
| Priority date | Dec 7, 2015 |
| Publication date | Mar 26, 2019 |
| Grant date | Mar 26, 2019 |
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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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- Citations and related patents
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Abstract
Official abstract text for this publication.
A control device of a powertrain with a centrifugal pendulum damper is provided in which the centrifugal pendulum damper and a power transmission shaft are operatively coupled via a connection/disconnection mechanism, and the control device of the powertrain with the centrifugal pendulum damper includes a connection/disconnection control module for controlling an engagement degree of the connection/disconnection mechanism by controlling the engagement degree of the connection/disconnection mechanism such that the centrifugal pendulum damper rotates at or below a predetermined upper rotational speed limit.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control device for a powertrain with a centrifugal pendulum damper, the centrifugal pendulum damper and a power transmission shaft being operatively coupled via a connection/disconnection mechanism, the control device comprising: a connection/disconnection control module operatively coupled to the connection/disconnection mechanism and configured to control an engagement degree of the connection/disconnection mechanism, wherein the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism such that the centrifugal pendulum damper rotates at or below a first predetermined upper rotational speed limit. 2. The control device of claim 1 , wherein the power transmission shaft and the centrifugal pendulum damper are operatively coupled via a speed increasing mechanism. 3. The control device of claim 2 , wherein the first predetermined upper rotational speed limit is set according to a load of a power source. 4. The control device of claim 3 , wherein when a rotational speed of the centrifugal pendulum damper has increased to the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side to cause the rotational speed of the centrifugal pendulum damper to be at or below the first predetermined upper rotational speed limit. 5. The control device of claim 4 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 6. The control device of claim 2 , wherein when a rotational speed of the centrifugal pendulum damper has increased to the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side to cause the rotational speed of the centrifugal pendulum damper to be at or below the first predetermined upper rotational speed limit. 7. The control device of claim 6 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 8. The control device of claim 2 , wherein when a rotational speed of the centrifugal pendulum damper has increased to a second predetermined upper rotational speed limit which is lower than the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side. 9. The control device of claim 8 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 10. The control device of claim 3 , wherein when a rotational speed of the centrifugal pendulum damper has increased to a second predetermined upper rotational speed limit which is lower than the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side. 11. The control device of claim 10 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 12. The control device of claim 1 , wherein the first predetermined upper rotational speed limit is set according to a load of a power source. 13. The control device of claim 12 , wherein when a rotational speed of the centrifugal pendulum damper has increased to the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side to cause the rotational speed of the centrifugal pendulum damper to be at or below the first predetermined upper rotational speed limit. 14. The control device of claim 13 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 15. The control device of claim 12 , wherein when a rotational speed of the centrifugal pendulum damper has increased to a second predetermined upper rotational speed limit which is lower than the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side. 16. The control device of claim 15 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 17. The control device of claim 1 , wherein when a rotational speed of the centrifugal pendulum damper has increased to the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side to cause the rotational speed of the centrifugal pendulum damper to be at or below the first predetermined upper rotational speed limit. 18. The control device of claim 17 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism. 19. The control device of claim 1 , wherein when a rotational speed of the centrifugal pendulum damper has increased to a second predetermined upper rotational speed limit which is lower than the first predetermined upper rotational speed limit, the connection/disconnection control module controls the engagement degree of the connection/disconnection mechanism to a released side. 20. The control device of claim 19 , wherein a control of the connection/disconnection mechanism to the released side by the connection/disconnection control module includes a control for releasing the connection/disconnection mechanism, and a control for slipping the connection/disconnection mechanism.
Assignees
Inventors
Classifications
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- F16F15/145Primary
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Frequently asked questions
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- What does patent US10240659B2 cover?
- A control device of a powertrain with a centrifugal pendulum damper is provided in which the centrifugal pendulum damper and a power transmission shaft are operatively coupled via a connection/disconnection mechanism, and the control device of the powertrain with the centrifugal pendulum damper includes a connection/disconnection control module for controlling an engagement degree of the connec…
- Who is the assignee on this patent?
- Mazda Motor
- What technology area does this patent fall under?
- Primary CPC classification F16F15/145. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 26 2019 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).