Methods and systems for a vehicle driveline control during varying driving conditions
First Claim
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1. A method of adjusting operation of a hybrid vehicle, comprising:
- adjusting a schedule for automatically stopping engine rotation in response to a road condition of a driving surface, including maintaining engine idling decoupled from a vehicle driveline instead of completely stopping an engine when road conditions have degraded.
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Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operating modes may be adjusted in response to driving surface conditions. The approaches may improve vehicle drivability and reduce driveline degradation.
52 Citations
19 Claims
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1. A method of adjusting operation of a hybrid vehicle, comprising:
adjusting a schedule for automatically stopping engine rotation in response to a road condition of a driving surface, including maintaining engine idling decoupled from a vehicle driveline instead of completely stopping an engine when road conditions have degraded. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of adjusting operation of a hybrid vehicle, comprising:
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adjusting a first schedule for automatically idling an engine and decoupling the engine via a disconnect clutch from a driveline in response to a condition of a driving surface; stopping rotation of the engine in response to the condition of the driving surface and a battery state of charge compared to a threshold, the threshold based on deceleration conditions. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of adjusting operation of a hybrid vehicle, comprising:
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adjusting operation of a driveline disconnect clutch positioned in a hybrid vehicle driveline in response to a closing rate of an obstruction in a path of the hybrid vehicle; and automatically stopping engine rotation in response to vehicle deceleration and battery state of charge. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification