METHODS AND SYSTEMS FOR STOPPING AN ENGINE
First Claim
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1. A method for stopping rotation of an engine, comprising:
- ceasing fuel delivery to engine cylinders combusting air and fuel;
commanding engagement of a starter from a state not engaged with the engine to engaged with the engine; and
adjusting a position of a throttle based on whether or not the starter engages the engine.
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Abstract
Systems and methods for improving operation of a stop/start vehicle are presented. In one example, an engine throttle position is adjusted in response to whether or not a starter engages a flywheel during engine stopping.
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Citations
20 Claims
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1. A method for stopping rotation of an engine, comprising:
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ceasing fuel delivery to engine cylinders combusting air and fuel; commanding engagement of a starter from a state not engaged with the engine to engaged with the engine; and adjusting a position of a throttle based on whether or not the starter engages the engine. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for stopping rotation of an engine, comprising:
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ceasing fuel delivery to engine cylinders combusting air and fuel; commanding engagement of a starter that is not engaged to the engine to engage the engine; and adjusting a position of a throttle based on whether or not the starter engages the engine and engine speed. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A vehicle system, comprising:
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an engine including a throttle; a dual mass flywheel (DMF) including a first side mechanically coupled to the engine; a driveline disconnect clutch mechanically including a first side coupled to a second side of the dual mass flywheel; a starter including a base state where the starter is not engaged to the engine; a transmission selectively coupled to the engine via the driveline disconnect clutch; and a controller including non-transitory instructions executable to adjust a position of the throttle during an engine stop based on whether or not the starter engages the engine in response to an engine stop request and before an engine stop. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification