Control apparatus for transmission
US-2015345634-A1 · Dec 3, 2015 · US
Hydraulic control device
US9109686B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109686-B2 |
| Application number | US-201214343340-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 6, 2012 |
| Priority date | Dec 8, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A hydraulic control device includes a lock-up control valve that regulates a line pressure to generate a control pressure, and a lock-up relay valve that switches between paths through which a hydraulic pressure is supplied to and discharged from a torque converter. The lock-up relay valve is formed to be capable of switching between a path that connects between a control pressure oil passage to which the control pressure is output and a lock-up oil passage communicated with a lock-up oil chamber and that connects between a control pressure oil passage to which the control pressure is output and a circulation input oil passage communicated with a converter oil chamber, and a path that blocks connection between the control pressure oil passage and the lock-up oil passage and that blocks connection between the control pressure oil passage and the circulation input oil passage.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hydraulic control device that controls a hydraulic pressure for a torque converter with a lock-up clutch having a circulation oil chamber for circulation of hydraulic oil within a converter body and an engagement oil chamber for engagement of the lock-up clutch using a pressure difference between a supplied hydraulic pressure and the hydraulic pressure within the circulation oil chamber, comprising: a circulation input oil passage connected to a circ…
Assignees
Inventors
Classifications
- F16H61/0206Primary
Mechanical Engineering · mapped topic
- F16H61/14Primary
Mechanical Engineering · mapped topic
- F16H45/02Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US9109686B2 cover?
- A hydraulic control device includes a lock-up control valve that regulates a line pressure to generate a control pressure, and a lock-up relay valve that switches between paths through which a hydraulic pressure is supplied to and discharged from a torque converter. The lock-up relay valve is formed to be capable of switching between a path that connects between a control pressure oil passage t…
- Who is the assignee on this patent?
- Aisin Aw Co
- What technology area does this patent fall under?
- Primary CPC classification F16H61/0206. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Aug 18 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).