Electric drive dump truck
A dump truck, electric drive technology, applied in the direction of electric vehicles, electric vehicle charging technology, drive interaction, etc., can solve the problem of high fuel consumption
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no. 1 approach －
[0024] figure 1 It is a side view of an electrically driven dump truck as an embodiment of the present invention. The electrically driven dump truck (hereinafter simply referred to as dump truck 1 ) according to the present embodiment is an ultra-large dump truck that transports excavated gravel and the like to a mine or the like. Such as figure 1 As shown, the dump truck 1 is provided with a vehicle body 3, a cab 2 disposed on the front portion of the vehicle body 3, a cargo box (English: vessel) 8 held by the vehicle body 3 and used for loading a load, and a cargo box 8 undulating hydraulic cylinders.
[0025] The dump truck 1 is an electric traction type dump truck that directly receives power from a trolley line (English: trolley line, overhead cable) on an uphill slope and drives a motor. The dump truck 1 includes a pair of left and right current collectors (also referred to as pantographs) 6L, 6R that receive electric power from two left and right positive-side and ne...
no. 2 approach －
[0088] refer to Figure 7 with Figure 8 The dump truck according to the second embodiment will be described. Figure 7It is a block diagram showing the configuration of the control system of the power collector 6 of the dump truck 1 according to the second embodiment. In the figure, the same reference numerals are assigned to the same or equivalent parts as those of the first embodiment, and the different points will be mainly described.
[0089] In the first embodiment, the signal indicating that the power collecting unit 60 can be raised is output from the controller 100 to the speaker 29 as a voice output signal, and the driver is informed from the speaker 29 that the power collecting unit 60 can be raised. Examples are described. On the other hand, the lift drive control unit 205 of the controller 200 according to the second embodiment outputs a lift command signal to the lifter of the power collector 6 as a signal indicating that the power collector 60 can be raised, ...
Deformed example 1
[0096] In the above-mentioned embodiment, regarding the example in which the current collecting device 6 is raised in the dump truck 1 that advances straight toward the beginning of the linear electric traction travel section (refer to Figure 4 (a)) has been described, but the present invention is not limited thereto. When the traveling road surface immediately before the beginning of the electric traction traveling section is curved, that is, when the electric traction traveling section is set continuously to the curved section, the self-unloading section should be corrected based on the curvature of the road surface of the traveling section as follows. The location where truck 1 will enter is sufficient.
[0097] Figure 9 (a) is a diagram explaining a method of correcting the section start point when the traveling road surface immediately before the electric traction traveling section is a curve. Such as Figure 9 As shown in (a), for example, when the radius of the tra...
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