ZF has introduced City Bus Assist, a new technology designed to make city bus operations safer, smarter and more comfortable for passengers. The system was unveiled ahead of IAA Transportation 2026, which will be held in Hanover from September 14 to 20. It combines advanced driver assistance, steering, braking, suspension and software to help bus operators improve safety, accessibility and operational efficiency.
City Bus Assist supports drivers while approaching bus stops by automatically guiding the bus closer to the curb. The technology also controls the bus’s kneeling function, lowering the vehicle to reduce the gap between the bus and the pavement. This makes boarding and getting off easier, especially for senior citizens, children and passengers with disabilities.
The system also helps reduce tyre wear by improving the vehicle’s positioning during bus stop approaches. Combined with smooth braking and steering assistance, it offers a more comfortable ride for passengers while reducing stress for drivers operating in busy city traffic.
ZF demonstrated the technology during its Commercial Vehicle Tech Day, highlighting how intelligent software can connect different vehicle systems to improve daily bus operations. The company said modern city buses must deliver high levels of safety while ensuring comfort, reliability and efficient fleet performance.
Ivan Brajdic, Head of Research and Development, Commercial Vehicle Solutions Division at ZF, said city buses operate in demanding urban environments where they must protect passengers and other road users while maintaining smooth and reliable service. He said ZF’s integrated technologies are designed to support drivers, improve accessibility and help transport operators lower operating costs.
Along with City Bus Assist, ZF also showcased several other technologies for public transport. The City Bus Collision Mitigation System (CMS) detects vehicles, cyclists and pedestrians and can automatically apply the brakes to reduce the risk of accidents. The system is already being used by several bus manufacturers.
ZF also presented CDC Skyhook, a software-controlled damping system that adjusts suspension performance in real time to provide a smoother ride and better vehicle stability. Another innovation is the e-comp Scroll, a quiet, oil-free electric air compressor that supports braking and suspension systems while reducing maintenance requirements, particularly in electric buses.
The company also highlighted its broader portfolio for the public transport sector, including the AxTrax 2 LF electric portal axle, digital fleet management solutions under ZF Bus Connect, and a range of braking, steering, electrification and chassis technologies. With these latest innovations, ZF aims to help bus manufacturers and public transport operators deliver safer, more efficient and passenger-friendly mobility while supporting the growing shift toward intelligent and sustainable urban transportation.
