Methods and systems for engine stopping
First Claim
Patent Images
1. An engine stopping method, comprising:
- adjusting a speed of a driveline integrated starter/generator (DISG) to a desired speed that provides a desired transmission clutch oil line pressure in response to a request to stop engine rotation; and
slipping a driveline disconnect clutch in a driveline between the DISG and an engine to stop the engine at a desired position.
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Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine is stopped to a desired position via slipping a driveline disconnect clutch so that engine starting may be improved.
35 Citations
14 Claims
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1. An engine stopping method, comprising:
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adjusting a speed of a driveline integrated starter/generator (DISG) to a desired speed that provides a desired transmission clutch oil line pressure in response to a request to stop engine rotation; and slipping a driveline disconnect clutch in a driveline between the DISG and an engine to stop the engine at a desired position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An engine stopping method, comprising:
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closing a driveline disconnect clutch in response to a request to stop engine rotation; adjusting a speed of a driveline integrated starter/generator (DISG) to a desired engine speed profile that decelerates toward zero engine speed; and opening the driveline disconnect clutch at a predetermined engine speed. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification