Why Steer-by-Wire can do more Flexible integration, precise steering, powerful performance
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Flexible cabin design
Mechanical decoupling allows for flexible driver workstations and various steering units such as steering wheel, hand wheel, or joystick.
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Powerful hydraulics
High-performance hydraulics ensure safe control even with heavy vehicles.
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Combinable steering axles
Front axles, articulated joints, and rear axles can be flexibly connected with our EHLA® portfolio.
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Open interface
Assistance systems and autonomous functions can be easily integrated.
What is Steer-by-Wire?
Electronic steering for modern vehicles
Steer-by-Wire completely replaces the mechanical connection between the steering wheel and the steering axle with electronic control and hydraulic power transmission. The architecture is highly scalable and has been developed with a focus on flexible adaptability. It meets the requirements of ISO 26262 up to ASIL D and is approved for public road use in accordance with ECE-R79.
Steering is a safety-critical function. That is why we develop our system according to the highest international standards and deliver only systems that meet these standards and comply with all necessary approval regulations.
- Functional Safety: Our steering systems meet all requirements of ISO 26262 ASIL D.
- Road Approval: Compliance with ECE-R79 ensures that the system is approved for use on public roads.
- Optional Redundancy: Depending on the application, the system can be designed with full redundancy.
FAQ - Steer-by-Wire Frequently Asked Questions
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Safety is guaranteed through a redundant ("fail-operational") system architecture. If one component fails, a secondary unit takes over seamlessly, without the driver noticing any loss of steering capability. The system is designed in accordance with the highest standard, ISO 26262 ASIL D.
"Fail-operational" means that the system remains fully functional even if one component fails.
Yes, our system fully complies with the strict requirements of ECE-R79. It is therefore approved for use on public roads.
As part of our modular system, we meet the requirements of ISO/SAE 21434 for cybersecurity. The system is protected against manipulation and unauthorized external access.
Haptic feedback is simulated electronically. A steering torque simulator in the steering wheel calculates and reproduces the actual road forces, providing realistic and speed-dependent feedback at all times.
Yes, the system is highly scalable. The hydraulic system can be configured for maximum power to safely and dynamically control even the heaviest commercial and special-purpose vehicles in demanding terrain.
