Performance optimization processing method for platform controller of arm type overhead working truck

Abstract

The invention discloses a performance optimization processing method for a platform controller of an arm type overhead working truck in the field of arm trucks. A main controller, the platform controller and an external electromagnetic valve are included. Comprising the following steps that a main controller collects the action intention of an operator, converts the intention into a movement speed signal of a mechanism, selects a corresponding database movement characteristic number in combination with the operation characteristics of the mechanism and the safety state of a current machine, and sends the corresponding database movement characteristic number to a platform controller through a CAN bus; and the internal software of the platform controller respectively inputs the performance characteristic codes into respective processing module databases, calls corresponding motion performance parameters, performs corresponding calculation on speed commands of the motion performance parameters, and outputs results to control corresponding platform control valve blocks. In the arm type overhead working truck, when the IO module is used for controlling the hydraulic proportional valve, the influence of bus transmission interval time and network quality is avoided in the movement process, and good curve characteristics are obtained.

Description

technical field [0001] The invention relates to the field of arm vehicle control, in particular to a method for optimizing the performance of a platform controller of an arm type aerial work vehicle. Background technique [0002] In the prior art, the platform control is generally used as an extended IO module, which sends platform operation information to the chassis controller through the CAN bus, and at the same time receives control commands from the chassis controller to control related devices. Its platform controller does not have computing and processing capabilities, especially when it is used as an output module, it performs corresponding operations completely according to the information of the main controller. In the control of boom aerial work vehicles, two methods, such as time buffering (RAMP) and curve fitting (Curve), are generally used to match the motion performance. The current data transmission method is to prepare the time output variable of Ramp and t...

AI Technical Summary

Problems solved by technology

On the one hand, the control curve of this method will become a discontinuous broken line. At some performance points, it will cause a sudden change in the movement speed, and the control of the boom will cause vibration.

On the other hand, the control of time buffering will superimpose the sending cycle of CAN bus data. When the bus is disturbed or the load rate is large, the data will be sent with a delay, and the real-time performance of the control will not be guaranteed.

Images