| 摘要 |
The invention is directed to a steering system for a four-wheeled two-axle mobile machine (10), and in particular to a hydraulic steering system suitable for road surface cleaning machines. The invention comprises a hydraulic steering system for a machine having a longitudinal axis, comprising: a first steering axis having a first set of wheels (11); a second steering axis having a second set of wheels (12), the second set of wheels being operable to be locked at a steering angle of substantially zero degrees relative to the longitudinal axis of the machine; and a control unit configured to monitor the orientation of the second set of wheels when locked at the steering angle of substantially zero degrees relative to the longitudinal axis of the machine and to correct deviation of the second set of wheels from said orientation. |
