METHOD FOR CONTROLLING POWER-TRANSMISSION GEAR, SYSTEM, AND FOREST MACHINE

    公开(公告)号:WO2020043947A1

    公开(公告)日:2020-03-05

    申请号:PCT/FI2019/050610

    申请日:2019-08-28

    Applicant: PONSSE OYJ

    Inventor: OINONEN, Mikko

    Abstract: The invention relates to a method for controlling power-transmission gear (10) in a forest machine (100) comprising a harvester head (12), in which method - measuring a selected property of at least two trees (11) with the aid of observation means (14) of the basis of electromagnetic radiation at a distance from the trees (11) being measured in order to create measurement data (d), - controlling the power-transmission gear (10) with the aid of software means (16), on the basis of the measurement data (d) in order to create a change in the state of the power-transmission gear (10), when an amount of energy optimized on the basis of the measurement data (d) in terms of performing a selected operation of the first operating device (18) is transmitted to the first operating device (18) belonging to the forest machine (100), - performing the desired operation of the first operating device (18) using the energy transmitted by the power-transmission gear (10) after the change in state of the power-transmission gear (10), in which the operation of the first operating device (18) creates a change in the attitude, location, or state of the harvester head (12) or a combination of the aforementioned. The invention also relates to a corresponding system and forest machine.

    ARRANGEMENT AND METHOD FOR CONTROLLING AT LEAST ONE OPERATION OF A WORK MACHINE AND WORK MACHINE

    公开(公告)号:WO2021229151A1

    公开(公告)日:2021-11-18

    申请号:PCT/FI2021/050349

    申请日:2021-05-11

    Applicant: PONSSE OYJ

    Abstract: A work machine (1) comprises at least one structural element (21), at least one pressure medium operated actuator (22) for establishing at least one operation of the work machine, and at least one detection device (23) to determine the position of the structural element (21) of the work machine. An arrangement for controlling at least one operation of the work machine (1) comprises: a control valve arrangement (24) for controlling the actuator (22), and a control device (25) for controlling the control valve arrangement (24). The control device (25) is adapted to control said control valve arrangement (24) for adjusting the pressure and/or volume flow on the return line of the actuator (22) as dependent on the position of the structural element (21).

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