Methods and systems for transitioning between driveline braking modes
US-8938327-B2 · Jan 20, 2015 · US
Method and system for stopping an engine
US9393949B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9393949-B2 |
| Application number | US-201514659221-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2015 |
| Priority date | Oct 8, 2012 |
| Publication date | Jul 19, 2016 |
| Grant date | Jul 19, 2016 |
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- Title
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Abstract
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A method and a system for improving operation of a hybrid vehicle are presented. In one example, a disconnect clutch is operated in response to an engine stop request to adjust an engine stopping position during an engine shutdown. The approach may reduce engine starting time after the engine stop.
First claim
Opening claim text (preview).
The invention claimed is: 1. A system for stopping an engine, comprising: an engine; a driveline integrated starter/generator (DISG); a disconnect clutch positioned in a driveline between the engine and the DISG; a dual mass flywheel positioned in the driveline between the engine and the disconnect clutch; and a controller, the controller including non-transitory executable instructions stored in memory for adjusting stopping position of the engine via adjusting an actuation force applied to the disconnect clutch. 2. The system of claim 1 , where the non-transitory executable instructions for adjusting the actuation force include slipping the disconnect clutch after at least one of spark and fuel flow to the engine cease. 3. The system of claim 1 , where the non-transitory executable instructions for adjusting the actuation force include closing the disconnect clutch before at least one of spark and fuel flow to the engine cease. 4. The system of claim 1 , further comprising additional non-transitory executable instructions for cancelling driveline torque disturbances of the dual mass flywheel. 5. The system of claim 1 , further comprising additional non-transitory executable instructions for reversing a direction of the engine after an engine stop and before an engine start.
Assignees
Inventors
Classifications
including control of combustion engines · CPC title
the engine being stopped in a particular position · CPC title
- B60K6/48Primary
Parallel type · CPC title
Electric machine connected or connectable to gearbox input shaft · CPC title
Clutches · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9393949B2 cover?
- A method and a system for improving operation of a hybrid vehicle are presented. In one example, a disconnect clutch is operated in response to an engine stop request to adjust an engine stopping position during an engine shutdown. The approach may reduce engine starting time after the engine stop.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification B60K6/48. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jul 19 2016 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).