Slide valve, in particular for controlling a motor vehicle automatic transmission
US-2015354715-A1 · Dec 10, 2015 · US
Micro-electro-mechanical-systems based hydraulic control for a powertrain
US8935971B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8935971-B2 |
| Application number | US-201113096072-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 28, 2011 |
| Priority date | Oct 15, 2010 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
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An automatic transmission for a vehicle includes a hydraulically-controlled component and a pilot valve. The pilot valve includes at least one micro-electrical-mechanical systems (MEMS) based device. The pilot valve is operably connected to and is configured for actuating the hydraulically-controlled component. The pilot valve additionally includes a regulating valve operably connected to the pilot valve and to the hydraulically-controlled component. The regulating valve is configured to direct fluid to the hydraulically-controlled component when actuated by the pilot valve.
First claim
Opening claim text (preview).
The invention claimed is: 1. An automatic transmission for a vehicle, the transmission comprising: a hydraulically-controlled component; a pilot valve including a micro-electrical-mechanical-systems (MEMS) first valve portion and a second valve portion, wherein the first valve portion produces a pilot signal having sufficient pressure and flow to directly control the second valve portion, the second valve portion includes a mechanical non-MEMS spool valve that is at least 100 ti…
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Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US8935971B2 cover?
- An automatic transmission for a vehicle includes a hydraulically-controlled component and a pilot valve. The pilot valve includes at least one micro-electrical-mechanical systems (MEMS) based device. The pilot valve is operably connected to and is configured for actuating the hydraulically-controlled component. The pilot valve additionally includes a regulating valve operably connected to the p…
- Who is the assignee on this patent?
- Samie Farzad, Bartos Andrew L, Lee Chunhao J, and 5 more
- What technology area does this patent fall under?
- Primary CPC classification F16H61/0251. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 20 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).