At Busworld 2025 (04 to 09 October in Brussels), Knorr-Bremse AG will for the first time present its fully electric EPS steering (Electric-Power-Steering) for buses. The EPS steering system is intended to offer functions that reduce operating costs and CO2 emissions in operation. In market-standard configurations, EPS steering forces of up to 8.5 kNm can be realized. The EPS steering system from Knorr-Bremse allows the connection of a hydraulic auxiliary cylinder for vehicle configurations with particularly high axle loads that require two steered front axles. The EPS steering system thus also enables the application of higher forces for adjusting the steering angle. Through its “Power-on-Demand” principle, energy and fuel consumption of the buses should be reduced, regardless of the propulsion technology. In a year, this should allow a reduction of up to about 1,000 kilograms of
CO2 per bus in the standard driving profile. In addition, the maintenance-free operation and the fact that a servo oil change is not necessary are intended to promote sustainable operation. For vehicle manufacturers, the EPS steering is designed as a highly integrated plug-and-play system.
Among the advantages of the EPS steering system are:
- Energy-efficient Power-on-Demand steering
- Due to the modular design, great flexibility in adapting to available packaging space and vehicle type
- Maintenance-free
- Plug-and-play installation
- Based on millions of proven individual components with high durability
- Steerability even in the event of a complete loss of the vehicle's power supply
- Support for a hydraulic assist cylinder for extremely high front-axle loads or two steered front axles
- Developed for SAE Automation Level 2 and modularly expandable for L4+
- Supports steer-by-brake functionality as an additional redundancy layer to enable
- Mission-Complete Solutions
- Compliance with ISO 26262 as well as protection against cyber-attacks
Bernd Spies, Member of the Board of Knorr-Bremse AG and head of the Division Systems for Commercial Vehicles:
“We are presenting at Busworld our latest innovative solutions for powerful, safe, and environmentally friendly buses. This year, the focus is on our groundbreaking fully electric steering, with which we will significantly shape the mobility of the future.”
In addition to the EPS steering, Knorr-Bremse will present further solutions for buses at the trade fair.
Fusion Front and Proximity ADAS
Knorr-Bremse also presents at Busworld its driver assistance systems Fusion Front and Proximity ADAS. With the help of front cameras and radars, these systems can register information about traffic situations and relevant objects. In addition to active ADAS functions such as AEBS (Advanced Emergency Braking System),
other warning functions have been optimized specifically for use in buses:
- LDWS (Lane Departure Warning System)
- BSIS (Blind Spot Information System)
- MOIS (Moving Off Information System)
Modular SYNACT Disc Brake Family and Brake Control GSBC
Also the modular SYNACT disc brake family will be exhibited in Brussels. These are available as axial or radial brakes, for both internal combustion engine buses and electric buses. Customers are expected to benefit from a weight reduction of up to 48 kilograms per bus. With the modular brake control “Global-Scalable-Brake-Control” (GSBC), the previous component diversity is to be reduced. Instead, they rely on a brake-control platform with a modular approach. The system offers brake-control functions and is the interface to the driver-assistance systems. Another function is the automatic activation of the brake when the bus door is opened at the
