An automatic method for judging the success of the hitching force of a special vehicle

Abstract

The invention discloses an automatic judging method of successful power-take-off of a special vehicle. The automatic judging method comprises the following steps that 1, when an engine of the specialvehicle runs, a hydraulic motor pump rotation shaft rotates at the same time, and a proximity switch induction lug fixed to the outer side of the hydraulic motor pump rotation shaft rotates at the same time; 2, the proximity switch induction lug is inducted through a proximity switch installed on a hydraulic motor pump rotation base, and the proximity switch induction lug triggers the proximity switch to generate pulse signals; 3, the pulse signals of the proximity switch are collected in real time, the number of times of pulses are counted, and in first preset time, if the number of times ofthe pulses detected continuously reaches a specified value, successful power-take-off information is fed back by a vehicle control system controller. By means of the method, a traditional human judgement method is completely abandoned, by designing the automatic detection method to judge whether or not the hydraulic motor rotation speed reaches a specified range, it is achieved that a movement procedure is automatically executed when power-take-off succeeds, and alarming and sudden stopping are conducted when power-take-off does not succeed.

Description

technical field [0001] The present invention relates to the technical field of special vehicles, and more specifically, the present invention is an automatic judging method for the success of the hitch force of special vehicles. Background technique [0002] Before the special vehicle executes the action process specified by the task, the driver needs to engage the transfer case to take power in the parking state, so that the engine speed reaches the constant speed state required by the work. Generally speaking, the operation of the special vehicle driver's hooking and pulling force is relatively complicated. [0003] After the driver executes the "power-on-hook" operation, he often judges whether the power-taking is successful by observing the engine speed on the dashboard of the cab; Moreover, after the special vehicles are stationed at the launch site, the launch preparation time is required to be very precise. If the force take-off is misjudged as successful when the fo...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of poor reliability existing in the existing way of relying on the driver to judge the success of the power take-off, the present invention innovatively proposes an automatic judgment method for the success of the power take-off of the special vehicle, completely abandoning the traditional human judgment method, Avoiding the dependence on the driver's experience, by designing an automatic detection method to judge whether the hydraulic motor speed reaches the specified range, to realize the automatic execution of the action process when the "lifting force is successful", and to alarm and emergency stop when "the force is not successful"

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