A flexible control method for the start and stop of the arm frame of an aerial work platform

Abstract

The invention discloses a flexible control method for action starting and stopping of an upper-air work platform car cantilever crane. PWM signals are output through logic control in a controller to control a proportional valve, and the PWM signals of the proportional valve are cantilever crane action control output signals. The flexible control method is characterized in that starting and stopping control is divided into a slope starting control method and a slope stopping control method; and Yout output of the PWM signals of the proportional valve under different control methods is achieved through the logic relation among Xmin, Xmax, Ymin, Ymax, Xin, Active, AAC, ADC and Yauto. According to the flexible control method for starting and stopping, the limitation that operation stability of a traditional work platform depends on the skills of operators is broken, and operation safety and comfort are improved; and a quadratic function curve starting and index function curve stopping mode is adopted, action starting and stopping can be more stable through the mode, and no signal mutation phenomenon exists.

Description

technical field [0001] The invention relates to a flexible control method for the start and stop of the arm frame of an aerial work platform vehicle. Background technique [0002] The self-propelled straight-arm aerial work platform is a boom structure composed of multi-section telescopic arms. It uses its own power to walk a short distance between the work site or the site. It is used to transport staff and equipment to a specified height. Operation. As shown in the figure below, it is a self-propelled straight-arm aerial work platform. During operation, the operator operates at the platform console to control the jib amplitude, telescopic, turntable rotation, etc., so that the operator can carry out the work at the required height. Working at heights. During the operation, the operators will stay on the platform for a long time, and the comfort of the operation control of the boom turntable directly affects the recognition of the equipment. The number of starts and stops...

AI Technical Summary

Problems solved by technology

During the operation, the operators will stay on the platform for a long time, and the comfort of the operation control of the boom turntable directly affects the recognition of the equipment. The number of starts and stops for each movement is relatively large. ) The starting and stopping control is not good, and the impact of the action will be relatively large, which will cause the entire platform to shake, and the operators will have a reduced sense of safety for the vehicle, and they are less and less afraid to use it.

There are many aerial work platforms in the market that have poor start-stop control effects, cannot achieve smooth start and stop of each action, and have poor operating comfort

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