Electric drive dump truck

Abstract

The present invention is an electrically driven dump truck, the control device (200) consisting of a vehicle control device (50), a controller (100), an inverter control device (30), and a steering control device (32) is installed on the vehicle body (1) In the first travel section before reaching the trolley wire joint section (C), control is performed to impart a yaw moment to the vehicle main body (1) so as to travel following the first trolley wire (3L1, 3R1), and In the second running section after passing through the trolley wire joint section, control is performed to apply a yaw moment to the vehicle body (1) so as to travel following the second trolley wire (3L2, 3R2), and in the trolley wire joint section In this method, a predetermined path is set from the representative point toward the second target point, and the yaw moment is applied to the vehicle main body (1) along the predetermined path so as to follow the second trolley wire (3L2, 3R2) at last. control. Thereby, even in the connecting section of the trolley wire, the operator's operation load during slip running can be reduced, and stable slip running can be performed.

Description

technical field [0001] The present invention relates to an electrically driven dump truck, and more particularly to an electrically driven dump truck traveling by receiving electric power from a trolley wire. Background technique [0002] As a dump truck running in a mine, there is known a series-parallel hybrid type dump truck in which an engine drives a generator, and electric power generated by the generator is supplied to motors of rear wheels to drive the rear wheels. Furthermore, with this electrical configuration, a trolley-type running technique is realized, which does not use the power supply by the engine-generator in the predetermined uphill section, but installs trolley wires that are common in electric cars, and The sliding plate of the liftable current collector provided on the main body of the vehicle is raised to come into contact with the trolley wire to obtain electric power for running (hereinafter referred to as trolley running). The traveling technique ...

AI Technical Summary

Problems solved by technology

[0009] In the case where there is such a coupling section, the driver's visual operation is performed, and the operator not only simply drives the steering wheel so that the center position of the slide plate does not deviate greatly in the lateral direction from the trolley line, but also The steering wheel has to be operated in such a way that the trolley wires in contact with the slide plate transition from the first trolley wire to the second trolley wire, which imposes a large operational burden on the driver

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