Valve timing adjustment system and electronic control device
US-2024167399-A1 · May 23, 2024 · US
Control apparatus for engine
US8965660B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8965660-B2 |
| Application number | US-201113302568-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 22, 2011 |
| Priority date | Feb 16, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 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.
A first calculation device is provided that calculates a ratio of a target torque equivalent value of an engine to a maximum torque equivalent value of the engine, as a pressure ratio equivalent value. A second calculation device is also provided that calculates a flow velocity of air to flowing through a throttle valve in the engine, based on the pressure ratio equivalent value calculated by the first calculation device. A third calculation device is further provided that calculates a target throttle valve opening, based on the flow velocity calculated by the second calculation device. With this configuration, the target opening of a throttle valve corresponding to the requested engine torque, without using the pressures before and after the throttle valve section.
First claim
Opening claim text (preview).
The invention claimed is: 1. A control apparatus for an engine, comprising: a first calculation device having a maximum torque calculation unit, a target torque calculation unit, and a pressure ratio equivalent value calculation unit, the maximum torque calculation unit calculating a maximum torque produced in the engine at an ignition timing of a minimum spark advance for best torque, as a maximum torque equivalent value of the engine, the target torque calculation unit calculati…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
- F02D13/02Primary
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 US8965660B2 cover?
- A first calculation device is provided that calculates a ratio of a target torque equivalent value of an engine to a maximum torque equivalent value of the engine, as a pressure ratio equivalent value. A second calculation device is also provided that calculates a flow velocity of air to flowing through a throttle valve in the engine, based on the pressure ratio equivalent value calculated by t…
- Who is the assignee on this patent?
- Miyata Toshiyuki, Ueda Katsunori, Shibata Koji, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F02D13/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 24 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).