Recent Patents on the Steering System of Multi-Axle Vehicle
In the era of miniature, multi-axle steering has been evolved as an expected developing
trend for heavy-duty vehicle. The high-performance multi-axle steering system can significantly
strengthen the maneuvering flexibility and handling stability of multi-axle vehicle, which is one of the
key technologies for measuring the development level of modern large-scale and heavy-duty vehicles.
A large number of patents and articles have recently been devoted to the development of multi-axle
steering techniques that can significantly improve both maneuvering flexibility and handling stability. Firstly, the optimization,
improvement and novel design of steering apparatuses are discussed. Secondly, the new steering systems about the
control valves, the redundancy system and the centering and locking of rear steered wheels in electro-hydraulic steering
control system are analyzed. Thirdly, the latest design of control methods of multi-axle steering is reviewed. The future
research directions are also discussed in the paper. In a word, the paper provides a review of multi-axle steering vehicle,
which is extracted from literature and is needed for promising development in multi-axle steering technologies.
Keywords: Electro-hydraulic steering control system, multi-axle steering system, multi-axle vehicle, pure rolling motion, steering
control method, steering mechanism.
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