METHOD FOR CONTROLLING A HYBRID DRIVETRAIN WITH A DUAL-CLUTCH TRANSMISSION DURING AN ENERGY RECOVERY PHASE
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- STELLANTIS AUTO SAS
- Filing Date
- 2023-07-19
- Publication Date
- 2026-04-22
AI Technical Summary
The existing hybrid powertrain systems with dual-clutch gearboxes experience disruptions during gear changes due to the connection of rotating parts' inertias, leading to jerking and noise, especially during energy recovery phases.
A method for controlling the hybrid powertrain by opening the second gear-shifting clutch and the internal combustion engine's connection/disconnection clutch, followed by pre-selecting a target gear ratio and slipping the second clutch, then closing the engine clutch, to avoid jerking and noise during gear changes.
This method effectively prevents gear change-related disruptions and noise while optimizing torque response, and can be implemented through simple programming modifications in the powertrain control unit.