Valve timing adjustment system and electronic control device
US-2024167399-A1 · May 23, 2024 · US
Control system for an internal combustion engine
US9109475B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109475-B2 |
| Application number | US-201213405702-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2012 |
| Priority date | Mar 3, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An internal combustion engine includes a hydraulically-driven variable valve timing device for adjusting the opening timing and the closing timing of an intake valve and configured to include a start retard position for decompression that is retarded further from the most retarded position during a normal operating state, and a control system configured to start a cranking operation of the internal combustion engine while the variable valve timing device is positioned in the start retard position for decompression, to determine during the cranking operation whether operating oil has drained from the variable valve timing device, when it has been determined that oil has drained from the variable valve timing device, to set a delay time between the cranking operation start and an advance operation of the variable valve timing device longer than the situation in which operating oil is replete.
First claim
Opening claim text (preview).
What is claimed is: 1. An internal combustion engine utilized in a hybrid electric vehicle with a clutch interposed in a power drive line from the internal combustion engine to driving wheels for a slip engagement at a start of the internal combustion engine, the internal combustion engine comprising: a hydraulically-driven variable valve timing device for adjusting an opening timing and a closing timing of an intake valve and configured to include a start retard position for deco…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F01L1/3442Primary
Mechanical Engineering · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9109475B2 cover?
- An internal combustion engine includes a hydraulically-driven variable valve timing device for adjusting the opening timing and the closing timing of an intake valve and configured to include a start retard position for decompression that is retarded further from the most retarded position during a normal operating state, and a control system configured to start a cranking operation of the inte…
- Who is the assignee on this patent?
- Mitsuhashi Hideo, Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification F01L1/3442. 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).