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US 2021/0071602 A1Published application
Methods and systems for a vehicle
AssigneeFord Global Technologies, LLC
InventorsKhizer Tufail, Tim Winstanley
Life of this patent
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Abstract
Methods and systems are provided for a turbocharger. A system comprises a variable geometry turbocharger comprising a plurality of vanes, wherein the plurality of vanes is operated during a low-load transient event to conserve boost pressure from a previous high-load transient event to reduce lag during a proceeding high-load transient event.
Claims20
A system, comprising:
- an engine;
- an accelerator pedal;
- a variable geometry turbocharger comprising a plurality of vanes adjacent a turbine inlet;
- and
- a controller with computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
- adjust the plurality of vanes to a closed position in response to an accelerator tip-out following an accelerator tip-in.
3 more elements
A method for a turbocharger of an engine, the method comprising:
- adjusting a plurality of vanes of a turbine to a fully closed position in response to a high-load transient event;
- adjusting the plurality of vanes to a more open position, wherein the more open position comprises a larger flow through area than the fully closed position, in response to an actual boost pressure being equal to a desired boost pressure;
- and
- adjusting the plurality of vanes to the fully closed position in response to a low-load transient event following the high-load transient event.
1 more element
A system, comprising:
- an engine;
- a turbocharger comprising a compressor and a turbine, wherein the turbine comprises a plurality of vanes configured to adjust an inlet flow through area of the turbine;
- and
- a controller comprising computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
- adjust the plurality of vanes to a fully closed position in response to a high-load transient event;
- adjust the plurality of vanes to a more open position, wherein the more open position comprises a larger inlet flow through area than the fully closed position, in response to an actual boost pressure being equal to a desired boost pressure;
- and
- adjust the plurality of vanes to the fully closed position in response to a low-load transient event following the high-load transient event.
5 more elements
Dependencies are inferred from the claim text.