Self-propelled transportation vehicle and stop control method for the same

Abstract

Provided are a self-propelled transportation vehicle which can, upon detecting an obstacle during a travel, safely stop without diverting from a predetermined route, and a stop control method for the vehicle. The stop control method for the self-propelled transportation vehicle has a second detection step (S30) which, while the vehicle travels, detects an obstacle located away from the vehicle a preset distance, and the method also has a stop step (S40) which, when the obstacle detection in the second detection step (S30) detects a positional displacement of the vehicle in the left-right direction from a predetermined route of the vehicle, stops the vehicle by correcting the positional displacement with brake means for a left and right pair of drive wheels released. Thus, the vehicle can safely stop without diverting from the predetermined route.

Description

technical field [0001] The present invention relates to a self-propelled vehicle for transportation that is integrally detachably connected to a trolley and self-propelled along a guide mechanism arranged on a predetermined path, and a stop control method thereof. Background technique [0002] Conventionally, traction-type self-propelled vehicles and loading-type self-propelled vehicles are known among transportation self-propelled vehicles. Traction trolley, and self-propelled along the prescribed path through the guidance mechanism such as magnetic information laid on the ground; Walk along the prescribed path. [0003] In recent years, the utilization of the above-mentioned self-propelled vehicles for transportation tends to increase. In order to further improve efficiency, high speeds (about 80m / min) are required, and at the same time, safety assurance due to high speeds is required. When self-propelled vehicles for transportation When the vehicle is running at high sp...

AI Technical Summary

Problems solved by technology

[0010] Therefore, in the above-mentioned conventional stop control method of the self-propelled vehicle for transportation, when the self-propelled vehicle for transportation is driven at high speed, the stop braking of the self-propelled vehicle for transportation after the obstacle detection sensor detects an obstacle If the distance is long, once the safety buffer of the self-propelled vehicle for transportation touches an obstacle, the power transmission to the self-propelled vehicle for transportation will be cut off, thereby completely stopping the self-propelled vehicle for transportation. When heavy objects are placed on the trolley on top of the carriage, a very dangerous situation will continue in the long section from when an obstacle is detected to when it touches the obstacle and stops completely.

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