阅读说明：本技术 用于操作工作机器的驱动系的方法、用于工作机器的驱动系以及工作机器 (Method for operating a drive train of a work machine, drive train for a work machine and work machine ) 是由 J·勒格纳 于 2020-03-18 设计创作，主要内容包括：本发明涉及一种用于操作工作机器的驱动系(1)的方法,其中驱动系(1)的牵引驱动器(8)由电动牵引马达(2)经由变速器(4)驱动,并且其中,当变速器(8)的齿轮级变化时,牵引马达(2)的转速与正被接合的齿轮级同步。根据本发明的方法的特征在于,牵引马达(2)的计算模型用于转速同步,该模型考虑了牵引马达(2)的转动惯量,描述了将被传递的用于转速同步的扭矩。本发明进一步涉及一种对应的驱动系(1)并且涉及一种工作机器。(The invention relates to a method for operating a drive train (1) of a working machine, wherein a traction drive (8) of the drive train (1) is driven by an electric traction motor (2) via a transmission (4), and wherein, when a gear stage of the transmission (8) is varied, the rotational speed of the traction motor (2) is synchronized with the gear stage being engaged. The method according to the invention is characterized in that a calculation model of the traction motor (2) is used for speed synchronization, which model takes into account the moment of inertia of the traction motor (2), describing the torque to be transmitted for speed synchronization. The invention further relates to a corresponding drive train (1) and to a work machine.)

1. A method for operating a drive train (1) of a working machine, wherein a traction drive (8) of the drive train (1) is driven by an electric drive motor (2) via a traction transmission (8), and wherein during a gear stage change of the traction transmission (8) a speed synchronization of the traction motor (2) with the gear stage to be engaged is performed,

characterized in that a calculation model of the traction motor (2) is used for the speed synchronization, which calculation model determines the torque to be applied for the speed synchronization while taking into account the moment of inertia of the traction motor (2).

2. The method of claim 1, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

characterized in that the speed synchronization is assisted according to the model by excitation of the traction motor (2) or generator mode of the traction motor (2).

3. The method according to at least one of claims 1 and 2,

characterized in that the model takes into account the decreasing torque transfer capacity of the clutch of the engaged gear during the duration of the gear stage change and the increasing torque transfer capacity of the clutch of the gear to be engaged during the duration of the gear stage change.

4. The method according to at least one of the claims 1 to 3,

characterized in that the torque to be applied is a torque curve over the duration of the gear stage variation, which can be specified by the model.

5. The method of claim 4, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

characterized in that the torque curve is implemented according to a specifiable speed ramp.

6. The method according to at least one of claims 4 and 5,

characterized in that the final torque of the torque curve is specified such that when the gear stage change is complete, the same output torque is provided at the output side of the traction transmission as before the gear stage change, while taking into account the gear ratio of the gear stage to be engaged and the gear ratio of the engaged gear stage.

7. The method according to at least one of the claims 1 to 6,

characterized in that the model is fed with the transmission speed of the engaged gear stage and/or the transmission speed of the gear stage to be engaged and/or the wheel speed of the working machine and/or the output speed of the traction transmission (8) and/or the output torque of the traction transmission (8) and/or the torque transfer capacity of the clutch of the engaged gear stage and/or the torque transfer capacity of the clutch of the gear stage to be engaged.

8. The method according to at least one of the claims 1 to 7,

characterized in that a working drive (9) of the drive train (1) is driven by an electric working motor (3) via a working transmission (5), wherein a drive connection is established between the working drive and the traction drive, such that the traction drive (8) is driven in a supporting manner by the working motor (3).

9. The method of claim 8, wherein the first and second light sources are selected from the group consisting of,

characterized in that the traction drive (8) is driven in a supporting manner by the working motor whenever an increase in the overall efficiency of the drive train (1) can be achieved by driving the traction drive (8) in a supporting manner by the working motor (3) compared to when the traction drive is driven only by the traction motor (2).

10. The method of claim 9, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

characterized in that, however, the traction drive (8) is not driven with the working motor (3) if the working motor (3) has to provide more threshold working power than is required by the working drive (9).

11. The method of claim 10, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

characterized in that the working drive (9) comprises a hydraulic pump which can be driven by the working motor (3) and has an adjustable piston stroke height, wherein the piston stroke height is first increased and only then is the speed of the working motor (3) increased to provide the working power required by the working drive (9).

12. Drive train (1) for a working machine, comprising a traction drive (8) having an electric traction motor (2) and a traction transmission (4) and a working drive (9) having an electric working motor (3) and a working transmission (5), wherein the traction drive (8) can be driven by the traction motor (2) via the traction transmission (4) and wherein the working drive (9) can be driven by the working motor (3) via the working transmission (5) and wherein during a gear stage change of the traction transmission (4) a speed synchronization of the traction motor (2) with the gear stage to be engaged is performed,

it is characterized in that the preparation method is characterized in that,

the drive train (1) further comprises an electronic control unit (11) configured to calculate a calculation model of the traction motor (2) describing the torque to be applied for the speed synchronization while taking into account the moment of inertia of the traction motor (2).

13. Drive train (1) according to claim 11,

characterized in that the drive train (1) comprises a coupling clutch (10) via which a drive connection can be established between the traction drive (8) and the working drive (9).

14. Drive train (1) according to at least one of claims 12 and 13,

characterized in that the drive connection leads from the working drive (9) to the input side of the traction transmission (4).

15. Drive train (1) according to at least one of claims 6 to 8,

characterized in that the drive train (1) is configured to carry out the method according to at least one of claims 1 to 11.

16. A working machine comprising a drive train (1) according to at least one of claims 12 to 15.