Controls Remotely The Multi-purpose Break Down Lorry Travel Job Control System Research

Presently, our country natural disaster frequency sends, the large-scale equipment is unable when the emergency rescue process approaches or is needs many kinds of mechanical field operations, often depends upon the manpower to carry some specialized hand-hold hydraulic pressure or the steam moves the tool even light instrument in the scene to carry on the rescue. This way work, on the one hand is rescues the efficiency to be low, on the other hand is the rescue groups risk is big.In order to solve these question this article to design in view of has rescued the scene the remote control multi-purpose emergency (rescue) the machine shop truck (to hereafter refer to as break down lorry), enabled it to have the following function:The complete bikes outlook is small can satisfy the small spatial work the request; May satisfy the different rescue work through the replacement appendix the demand, causes it to have the multi-purpose attributes, may one machine multipurpose; The diesel engine automatic velocity modulation and the variable displacement pump overload from the adjustment function, enhances under effectively the extreme condition the work performance; Has the remote control control function, reduced in the rescue process personnel risk; May ship rapidly with the aid of the haulage truck or other transport means the break down lorry to the assigned location.This article first introduced break down lorry's overall project design and take PLC as the core hardware design plan, to strengthen control system's reliability, in the system travel function designed separately has used PLC and isolates the PLC two set of independent redundancy control plan. Then the system introduced the diesel engine and the static hydraulic actuation system's structure and the characteristic, profit from the present vanguard technology to use the diesel engine accelerator actuator from the velocity modulation system, and uses the fuzzy control to enhance has the PID control accelerator actuator's velocity modulation performance. To further enhance the work performance, has designed, when the diesel engine exceeds the quota the load, adjusts the variable displacement pump by the engine speed error's single input list output's fuzzy control to output. Because this control system control quantity are many, the system is more complex, uses the Petri net modelling in system's software establishment, uses the Petri net's formidable function, entrusts with the storehouse institute and the vicissitude actual control significance, has realized to control system's accurate description and the performance evaluation, designed the PLC LAD procedure, caused this system software safe reliable, and easy to promote the revision.This break down lorry can achieve the original function goal, has the remote control control function and may under the multi-state of roads the high performance work, this to enhances our country to rush to deal with an emergency rescue ability to have the important meaning.