Model-based engine speed profiling techniques for improved hybrid powertrain synchronization
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 18, 2025
Grant Date -
N/A
app pub date -
Nov 20, 2023
filing date -
Nov 20, 2023
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Techniques for synchronizing shaft speeds of a hybrid powertrain of a hybrid vehicle include, during a first phase of a synchronization process, starting an engine using a first electric motor and increasing a speed of an output shaft of the engine to a first speed that is less than a second speed of an intermediate powertrain shaft on an opposing side of a disconnect clutch relative to the engine output shaft, and during a subsequent second phase of the synchronization process, performing a model-based determination of a target speed profile for the engine to follow from the first speed to the second speed and controlling the engine to increase its speed according to the target speed profile, and closing the disconnect clutch when the speeds of the engine output shaft and the intermediate powertrain shaft are synchronized.
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International Classification(s)
- 2023 Application Filing Year
- B60W Class
- 3772 Applications Filed
- 666 Patents Issued To-Date
- 17.66 % Issued To-Date
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- 0 Citation Count
- B60W Class
- 0 % this patent is cited more than
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