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US 8,573,182 B2Granted
Method for starting an engine automatically
AssigneeFord Global Technologies, LLC
InventorsDavid Bruce Reiche, Steven Wooldridge, Curtis McGuire, Brad Alan VanDerWege
Life of this patent
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Abstract
A method for improving starting of an engine that may be automatically started is provided. In one example, spark timing of an automatically started engine is in advance of spark timing for an operator requested engine start. The approach may reduce vehicle driveline disturbances.
Claims20
A method, comprising:
- automatically stopping an engine;
- and
- starting the stopped engine, including adjusting a spark timing for a cylinder of the engine to a timing retarded from top-dead-center compression stroke of the cylinder in response to a request to automatically start the engine, the spark timing for a first combustion event in the cylinder since the stop of the engine and while the engine is being cranked via a starter.
A method for starting an engine, comprising:
- automatically stopping the engine in response to idle-stop conditions;
- in response to a controller requested engine start from stop during a first condition, adjusting a spark timing to a first timing during engine cranking via a starter;
- and
- in response to an operator requested engine start during a second condition substantially the same as the first condition, adjusting the spark timing to a second timing during engine cranking via the starter, the second timing different than the first timing.
1 more element
A method for starting an engine, comprising:
- stopping the engine after retarding spark timing in response to a request to automatically stop the engine;
- in response to a controller requested engine start during a first condition with an absence of an operator engine start request, adjusting the spark timing of the engine to a first timing during cranking of the engine via a starter;
- and
- in response to an operator requested engine start during a second condition, the second condition substantially the same as the first condition, adjusting the spark timing of the engine to a second timing during cranking of the engine via the starter, the second timing different than the first timing.
1 more element
Dependencies are inferred from the claim text.