The new EV from NIO, the ET9, will feature steer-by-wire technology. This means that the traditional mechanical connection between the steering wheel and front wheels will be replaced with an entirely electronic system.
The steer-by-wire setup includes a steering wheel actuator along with the redundant steering gear actuator and software integration and is being provided by ZF.
The Benefits of Steer-by-Wire
Unlike traditional power steering, ZF’s steer-by-wire system replaces the mechanical link between the steering wheel and wheels with electronic signals. This setup offers several advantages:
- Adaptive Steering Response: Adjusts steering ratio dynamically based on speed and driving conditions.
- Compact Steering Designs: Allows for innovative steering wheel layouts and improved cabin space.
- Enhanced Maneuverability: Reduces steering effort during low-speed movements, making parking and tight turns easier.
- Safety Improvements: The absence of a physical steering column reduces potential crash-related injuries.
- Integration with Automated Driving: A crucial technology for future autonomous and electric vehicles.
By-Wire Technologies
ZF has already begun series production of its steer-by-wire system with another major car manufacturer and has secured additional contracts in Europe and North America. The company’s expanded Chassis Solutions Division, formed in early 2024, is exploring brake-by-wire and other by-wire technologies as it looks to continue its rapid expansion.
Steer-by-wire…good idea or not?
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