| 摘要 |
The present invention relates to a method for preventing rollover of a tractor unit (2) of a working machine (1), the working machine (1) comprising the tractor unit (2) and a trailer unit (4) pivotally connected to each other by a joint arrangement (15) allowing mutual rotation of the tractor unit (2) and the trailer unit (4) around a geometrical axis (302) having a horizontal component in the longitudinal direction of the working machine, wherein the working machine comprises a longitudinal differential gearing arrangement (308) interconnecting a tractor unit drive shaft (306, 402) of the tractor unit (2) and a trailer unit drive shaft (310) of the trailer unit (4); wherein the method comprises the steps of receiving (S1) a signal indicative of an upcoming rollover situation of the tractor unit (2) of the working machine (1); and in response to the received signal, positioning (S2) the longitudinal differential gearing arrangement (308) in a lock-up mode for preventing mutual rotation between said tractor unit drive shaft (306, 402) and said trailer unit drive shaft (310); rotatably fixating (S3) said tractor unit drive shaft (306, 402) to said tractor unit (2) for preventing rotation of said tractor unit drive shaft (306, 402) and said tractor unit (2) relative to each other; and rotatably fixating (S4) said trailer unit drive shaft (310) to said trailer unit (2) for preventing rotation of said trailer unit drive shaft and said trailer unit relative to each other. The invention also relates to a corresponding control unit and a working machine. |
