Valve control device
US-2018073450-A1 · Mar 15, 2018 · US
System for wastegate control
US10240516B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10240516-B2 |
| Application number | US-201816106543-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 21, 2018 |
| Priority date | Sep 6, 2016 |
| Publication date | Mar 26, 2019 |
| Grant date | Mar 26, 2019 |
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- Title
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- Abstract
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Abstract
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Methods and systems are provided for controlling a wastegate coupled to a turbine. In one example, a method may include during steady engine operation, actuating a wastegate to introduce an oscillation in boost pressure, and updating gain of a wastegate feedback controller responsive to the oscillation in boost pressure.
First claim
Opening claim text (preview).
The invention claimed is: 1. An engine system, comprising: a turbocharger; a wastegate coupled to a turbine of the turbocharger; a throttle controlling air intake to an engine intake manifold; a sensor upstream of the throttle for sensing a boost pressure; and an engine controller configured with computer readable instructions stored on non-transitory memory for: actuating the wastegate via a wastegate feedback controller; during steady engine operation, actuating the wastegate to induce boost pressure oscillation, and actuating the throttle responsive to the boost pressure oscillation; and updating the gain of the wastegate feedback controller based on the boost pressure oscillation. 2. The system of claim 1 , wherein the engine controller is further configured to update the gain of the wastegate feedback controller based on peaks and zero-crossings of the sensed boost pressure. 3. The system of claim 1 , wherein the throttle is actuated to maintain a constant manifold air pressure. 4. The system of claim 1 , further include an electric motor, and the engine controller is further configured for using electric motor to compensate impact of boost pressure oscillation on engine torque output. 5. The system of claim 1 , wherein the engine controller is further configured for oscillating torque generated by a generator to maintain a constant vehicle torque output.
Assignees
Inventors
Classifications
active, predictive, or anticipative · CPC title
- F02B37/183Primary
Arrangements of bypass valves or actuators therefor · CPC title
Improving ICE efficiencies · CPC title
Controlling engines characterised by their being supercharged · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10240516B2 cover?
- Methods and systems are provided for controlling a wastegate coupled to a turbine. In one example, a method may include during steady engine operation, actuating a wastegate to introduce an oscillation in boost pressure, and updating gain of a wastegate feedback controller responsive to the oscillation in boost pressure.
- Who is the assignee on this patent?
- Ford Global Tech Llc
- What technology area does this patent fall under?
- Primary CPC classification F02B37/183. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 26 2019 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).