阅读说明：本技术 用于作业机械的驱动器 (Drive for a working machine ) 是由 J·莱格纳 于 2019-02-06 设计创作，主要内容包括：一种用于轮式装载机的驱动器具有用于驱动车辆车轮(5)的第一电动马达(3)和用于驱动作业设备(7)的泵(6)的第二电动马达(4)。第一电动马达(3)和第二电动马达(4)取决于加速踏板的位置的信号来操控,由此在车辆的静止状态下,第一电动马达(3)的转矩直接取决于加速踏板的位置。(A drive for a wheel loader has a first electric motor (3) for driving a vehicle wheel (5) and a second electric motor (4) for driving a pump (6) of a work apparatus (7). The first electric motor (3) and the second electric motor (4) are actuated as a function of a signal indicating the position of the accelerator pedal, whereby the torque of the first electric motor (3) is directly dependent on the position of the accelerator pedal in the stationary state of the vehicle.)

1. A drive for a working machine, wherein the drive has a computing unit, by means of which a first electric motor (3) for driving vehicle wheels (5) and a second electric motor (4) for driving a working device (11) can be actuated, wherein the computing unit processes a signal corresponding to the position of an accelerator pedal (17), and the first electric motor (3) and the second electric motor (4) are actuatable independently of each other, and the first electric motor (3) is actuatable by a signal dependent on the position of the accelerator pedal (11).

2. The drive according to claim 1, characterized in that characteristic curves for a fast driving range from a standstill of the work machine up to a maximum speed of the work machine are stored in a memory unit, wherein each characteristic curve represents a position of the accelerator pedal (11), and wherein a rotational speed of the first electric motor (3) can be derived from each characteristic curve as a function of a torque of the first electric motor (3).

3. The drive according to claim 2, characterized in that each characteristic curve is designed such that in the stationary state of the first electric motor (3) it is assigned a torque, wherein in the stationary state of the first electric motor (3) the stored characteristic curve outputs the maximum achievable torque with full actuation of the accelerator pedal (11), and in the stationary state of the first electric motor (3) the stored characteristic curve outputs a smaller torque with slight actuation of the accelerator pedal (11), wherein in the event of reduced actuation of the accelerator pedal the output torque is also correspondingly reduced.

4. The drive according to claim 2, characterized in that each characteristic curve is designed such that, in the state in which the first electric motor (3) is not outputting torque, it outputs the rotational speed of the first electric motor (3), wherein the stored characteristic curve outputs the maximum attainable rotational speed in the case of a full actuation of the accelerator pedal (11) and the stored characteristic curve outputs a lower rotational speed in the case of a slight actuation of the accelerator pedal.

5. The drive according to claim 1, characterized in that characteristic curves for a slow driving range from a standstill of the work machine up to a speed which is less than the maximum speed of the work machine are stored in a memory unit, wherein each characteristic curve represents the position of the accelerator pedal (11), and wherein the rotational speed of the first electric motor (3) can be derived from each characteristic curve as a function of the torque of the first electric motor.

6. The drive according to claim 5, characterized in that each characteristic curve is designed such that in the stationary state of the first electric motor (3) it is assigned a torque, wherein in the stationary state of the first electric motor (3) the stored characteristic curve outputs the maximum achievable torque with full actuation of the accelerator pedal (11), and in the stationary state of the first electric motor (3) the stored characteristic curve outputs a smaller torque with slight actuation of the accelerator pedal (11), wherein in the event of a reduced actuation of the accelerator pedal (11) the output torque is also correspondingly reduced.

7. The drive according to claim 5, characterized in that each characteristic curve is designed such that, in the state in which the first electric motor (3) is not outputting torque, it outputs a rotational speed of the first electric motor, wherein the stored characteristic curve outputs a rotational speed which is less than the maximum attainable rotational speed in the fast driving range in the case of a full actuation of the accelerator pedal (11) and outputs an even lower rotational speed in the case of a slight actuation of the accelerator pedal.

8. The drive according to claim 1, characterized in that the computing unit processes a signal of the position of the brake pedal (16), wherein the signal of the position of the accelerator pedal (11) is changed as a function of the signal of the position of the brake pedal (16) in such a way that, in the case of actuation of the brake pedal (16), the position of the accelerator pedal (11) to which the signal of the accelerator pedal (11) corresponds is smaller than in the case of non-actuation of the brake pedal (16).

9. Drive according to claim 1, characterized in that the rotational speed of the second electric motor (4) is controllable depending on the rotational speed of the first electric motor (3).

10. The drive according to claim 1, characterized in that the rotational speed of the second electric motor (4) is controllable depending on the position of the accelerator pedal (11).

11. The drive according to claim 10, characterized in that the rotational speed of the second electric motor (4) is greater than 0 without actuation of an accelerator pedal (11).

12. Drive according to claim 10, characterized in that the rotational speed of the second electric motor (4) is steered to not reach the maximum rotational speed of the second electric motor (4) when the rotational speed of the first electric motor (3) is between more than 0 and the maximum attainable rotational speed of the first electric motor (3).

13. Drive according to claim 10, characterized in that the rotational speed of the second electric motor (4) is commanded to reach its maximum rotational speed when the rotational speed of the first electric motor (3) is between 0 and a rotational speed which is lower than the maximum attainable rotational speed of the first electric motor (3).

14. A wheel loader having a first electric motor (3) and a second electric motor (4) according to claim 1 and a power train.