Cooled two-stage turbocharging system
US-2016102604-A1 · Apr 14, 2016 · US
Method and system to provide engine torque
US10161319B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10161319-B2 |
| Application number | US-201715400115-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 6, 2017 |
| Priority date | Jan 7, 2016 |
| Publication date | Dec 25, 2018 |
| Grant date | Dec 25, 2018 |
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- Title
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Abstract
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An exemplary method of providing torque-assist to a crankshaft of an internal combustion engine includes, among other things, assisting a rotation of the crankshaft using an electric machine during the transition between stages of a multi-stage forced induction system.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of providing torque-assist to a crankshaft of an internal combustion engine, the method comprising: assisting a rotation of the crankshaft using an electric machine during the transition between stages of a multi-stage forced induction system. 2. The method of claim 1 , further comprising activating the electric machine when a first stage of the forced induction system reaches a peak performance level. 3. The method of claim 2 , further comprising deactivating the electric machine when a second stage of the forced induction system reaches a peak performance level. 4. The method of claim 1 , further comprising activating the electric machine when a second stage of the forced induction system is activated. 5. The method of claim 4 , further comprising deactivating the electric machine when a first stage of the forced induction system is deactivated. 6. The method of claim 1 , further comprising deactivating the electric machine when a second stage of the forced induction system reaches a peak performance level. 7. The method of claim 1 , further comprising deactivating the electric machine when a first stage of the forced induction system is deactivated. 8. The method of claim 1 , further comprising assisting the rotation of the crankshaft during only a middle portion of the speed range of the engine. 9. The method of claim 1 , further comprising assisting the rotation of the crankshaft only when more than one stage of the forced induction system is activated. 10. A torque-assist system for an internal combustion engine, the torque-assist system comprising: a multi-stage forced induction system; an electric machine coupled to a crankshaft of the engine; and a controller configured to activate the electric machine during transition between the stages of a multi-stage forced induction system to assist the rotation of the crankshaft. 11. The torque-assist system of claim 10 , wherein the multi-stage forced induction system comprises at least one turbocharger. 12. The torque-assist system of claim 10 , wherein the electric machine is coupled to the crankshaft of the engine by virtue of one or more intermediary members. 13. The torque-assist system of claim 12 , wherein the multi-stage forced induction system comprises at least one turbocharger. 14. The torque-assist system of claim 13 , wherein the electric machine is coupled to the crankshaft at a front end of the engine. 15. The torque-assist system of claim 10 , wherein the electric machine is coupled to the crankshaft at a front end of the engine. 16. An engine comprising the torque-assist system of claim 8 . 17. The torque-assist system of claim 10 , wherein the controller is further configured to deactivate the electric machine when a second stage of the multi stage forced induction system reaches a peak performance level. 18. The torque-assist system of claim 10 , wherein the controller is further configured to activate the electric machine when a second stage of the multi stage forced induction system is activated. 19. The torque-assist system of claim 10 , wherein the controller is further configured to deactivate the electric machine when a first stage of the multi stage forced induction system is deactivated. 20. The method of claim 1 , further comprising using a controller to control the electric machine when the electric machine is assisting of the rotation of the crankshaft.
Assignees
Inventors
Classifications
with exhaust-driven pumps arranged in series · CPC title
on interior conditions · CPC title
- F02D23/00Primary
Controlling engines characterised by their being supercharged · CPC title
Motor-assist type · CPC title
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10161319B2 cover?
- An exemplary method of providing torque-assist to a crankshaft of an internal combustion engine includes, among other things, assisting a rotation of the crankshaft using an electric machine during the transition between stages of a multi-stage forced induction system.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02D23/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 25 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).