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US 9,541,014 B2Granted
Method for pre-ignition control
AssigneeFord Global Technologies, LLC
InventorChris Paul Glugla
Life of this patent
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Abstract
Various systems and methods are described for controlling pre-ignition in a boosted engine in a newly manufactured vehicle. One method comprises, during a pre-delivery phase of the vehicle, operating the boosted engine in a pre-delivery calibration with a first, higher enrichment, in response to a pre-ignition event. The pre-delivery calibration is deactivated during a post-delivery phase and the boosted engine is operated with a second, lower enrichment in response to a pre-ignition event.
Claims19
A method, comprising:
- during a pre-delivery phase of a vehicle including an engine,
- operating the engine with a first setting for a parameter in a pre-delivery calibration;
- adjusting the first setting of the parameter responsive to pre-ignition;
- and
- during a post-delivery phase of the vehicle,
- operating the engine with a second setting for the parameter in a post-delivery calibration.
3 more elements
A method for an engine in a vehicle, comprising:
- during a pre-delivery phase of the vehicle,
- operating the engine with a first amount of load limiting;
- increasing the first amount of load limiting to a second amount responsive to pre-ignition;
- and
- during a post-delivery phase of the vehicle,
- operating the engine without load limiting;
- and
- in response to pre-ignition, increasing the load limiting by a third amount.
5 more elements
A system for a vehicle, comprising:
- a boosted engine including a cylinder;
- a spark plug within the cylinder;
- a knock sensor;
- and
- a control system with computer-readable instructions stored on non-transitory memory for:
- during a pre-delivery phase, operating the boosted engine in a pre-delivery calibration with a first, higher enrichment, and a first level of limited boost in response to a pre-ignition event;
- and
- during a post-delivery phase, deactivating the pre-delivery calibration, and operating the boosted engine with a second, lower enrichment, and a second level of limited boost in response to a pre-ignition event in the boosted engine.
5 more elements
Dependencies are inferred from the claim text.