Hi Grzegorz,
The error "Rotational velocity must be less than or equal to Maximum speed" in your 7-speed transmission simulation suggests a component exceeds its maximum rotational speed. To resolve this:
- Ensure the 7-speed ratios are correctly setand compare them with the working 6-speed and 8-speed setups to identify any discrepancies.
- Review and adjust the maximum speed limits for all rotational components in the system to ensure they're realistic and sufficient.
- Run the simulation in stages to pinpoint when and where the speed limit is exceeded. Monitor rotational velocities closely, especially during gear shifts.
- If necessary, tweak simulation parameters such as damping, inertia, or the engine's power curve to prevent excessive speeds.
Additionally, you can also look into this example (https://www.mathworks.com/help/sdl/ug/transmission-testbed.html) of a testbed with interchangeable transmissions.
Here are links to documentations that could resolve the issue.
- 4-Speed Ravigneaux: https://www.mathworks.com/help/sdl/ref/7speedlepelletier.html
- 7-Speed Lepelletier: https://www.mathworks.com/help/sdl/ref/4speedravigneaux.html
Hope this helps!