Amsted Automotive has unveiled new Multi-Speed Shift Technology poised to improve efficiency and all-electric driving range, as well as performance and cargo-carrying capacity of EVs and hybrid vehicles. The new Multi-Shift Technology uses integrated One-Way-Clutch (OWC) functionality to optimize function, efficiency, range and cost in EV and HEV drivetrains.
The new Multi-Speed Shift Technology will launch in an EV production vehicle in 2026. It can provide flexible system solutions to achieve smooth and quick shift transitions with simplified shift controls compared to conventional technology.
This technology uses proven Amsted Automotive Dynamic Controllable Clutch (DCC) technology already used in a production EV all-wheel-drive vehicle. Amsted Automotive’s Multi-Speed Shift Technology can be used in both parallel-axis and co-axial powertrain systems. One variation eliminates friction clutches for reduced drag, improved efficiency and improved sustainability metrics.
Advantages of the Amsted one-way clutch over dog-clutch style systems include:
- No blocked or interrupted shifts
- No ratcheting during shifts
- Simplified system controls
- Additional functionality such as park-lock
- Easier calibration, reducing engineering loads
