Advanced Materials Research Vols. 694-697

Abstract: The motor will affect stability and efficiency of battery when it power for motor. The fluctuations of load leads to fluctuations in the torque of the motor which will make the power of battery produce the corresponding fluctuations. Based on the analysis, establish the energy loss model of IPMSM. Based on H∞, finish the control strategy of the almost disturbance decoupling to vehicle power system. The analysis of actual data and the corresponding simulation results shows that the strategy can restrain specific interference that prove it is almost disturbance decoupling.

Abstract: A brake pad wear control algorithm used under uncritical braking conditions is proposed to reduce the difference in brake pad wear between the front and rear axles caused by the difference in braking force and the type of brake. The algorithm regulates the distribution of braking force within the limits of certain braking regulations according to the wear conditions of the brake pads while deceleration control still functions properly. Computer co-simulations of braking with Trucksim and Matlab/Simulink was performed in which vehicle models with equal brake pad wear, greater wear on the front axle and greater wear on the rear axle were used. The results show that the difference in brake pad wear between the front and rear axles can be reduced by distributing the braking force according to the wear conditions of the brakes when braking uncritically to reduce the time and cost needed in repair and maintenance.

Abstract: Electronic Braking System (EBS) can improve the braking performance of trucks significantly. A novel control algorithm for EBS has been proposed in this paper, which consists of Driving Identification Module and Braking Force Distribution Module. Driving Identification Module can recognize the non-emergency braking situation according to the signal of the electronic braking pedal. Braking Force Distribution Module regulates the braking force on front and rear axle by comparing the slip-ratios on every axle. As a result, the optimum braking pressure on different axles can enhance the safety and balance the brake wear. The performance of the control algorithm has been simulated utilizing 15-DOF vehicle dynamic model. The results show that the control algorithm can provide a good braking feeling and the braking performance of the vehicle is perfect.

Abstract: This paper focuses on the problem of Hinf control for uncertain Takagi-Sugeno fuzzy descriptor system with time-invariant norm-bound uncertainty. Sufficient condition for robust Hinf control with state feedback is derived. It is shown that the control laws can be obtained by solving a set of linear matrix inequalities (LMIs) which is numerically tractable with commercially available software. Numerical example is given to demonstrate the advantage of the proposed method.

Abstract: Automation is the technology that helps in meeting the increasing pace of development and industrialization. The increasing demand of productivity in terms of quality and quantity, increase in pressure for meeting the deadlines and the decrease in the availability of cheap labour has led to a tremendous increase in the research and development of the different tools that automate the production either directly or indirectly. The aim of our work is to design, fabricate and analyse the performance of a magnetic belt type feeder, which feeds the ferromagnetic parts in desired orientation and feed rate. A physical prototype of a conveyor type magnetic feeder was constructed and the feeding behaviour was studied experimentally by varying the input parameters such as speed of conveying, number of magnets and part population. Analysis was done by feeding cylindrical parts with large diameter to length ratio. The profile of the chute helps in orienting the parts along their length which is difficult to orient by conventional feeders. A study on the experimental setup was performed and conclusions were drawn about the effect of various parameters on the feed rate.

Abstract: This paper presents an open-architecture network motion controller system of Multi-sucker Wall-climbing Mechanism. It uses motion controller as control system kernel and industrial control computer as its system sustaining cell, also introduces system function, hardware configuration and the method of software design base on bus, winsock process manages off-line tasks. Complete the development of the client and server programming and networks of movement control system base on the C/S structure. Experiment show that the same wave between the actual speed of electrical and given speed. Delay is very small, constant speed along the passage of the volatility, run smoothly up and no speed super. The motion control system achieves some excellent capabilities such as precise trajectory, little responding time, high precision in fixing position.

Abstract: This paper proposes a Multi-Agent grinding control system model based on the blackboard model and in accordance with the Multi-Agent Systems modeling method . We hierarchical decompose of the grinding control task, establish a grinding control subsystem model, we establish the specific function of each subsystem model and establish a complete multi-Agent grinding control system structure. We establish a Multi-Agent System based on the blackboard model and multi-Agent Communication and Coordination Mechanism. This paper describes the architecture of the control multi-Agent grinding system and its function results in details and designs a blackboard coordination model, the results shared collaborative mechanisms and Multi-Agent collaboration conflict resolution strategies. This system model reduces the difficulty of the operation of the grinding control, multi-Agent collaboration enhance the system's ability to execute, decision-making consultation mechanisms improves the control precision and accuracy of the system.

Abstract: In this paper, we study chaos control of the fractional order Chen system with the bounded random parameter. Firstly, we transform the fractional order Chen system with random parameter into an equivalent deterministic system by the orthogonal polynomial approximation. Secondly, based on Routh-Hrwitz criterion, the derivative feedback control laws are applied to fractional order equivalent deterministic Chen system. Lastly, numerical simulations show that the control method is effective and feasible.

Abstract: The control of simulated beer production line is implemented based on a Q series PLC controller of Mitsubishi company. The mathematical modeling method and the self-adaptive control strategy are introduced. The Mitsubishi PX-Developer software is adopted to design, run and debug online the PID and self-adaptive PID controller. Performance comparison between the two kinds of control strategy is made. It is shown that the self-adaptive PID control algorithm has the superiority.

Abstract: With the widely application of PLC technology on marine auxiliary boiler, the marine engineers should master the control principle. Basing on the characteristic of marine boiler, a combustion scheduling simulating control system on marine auxiliary boiler was designed with PLC technology to meet the need of sailors teaching and competence assessment. The system integrates automatic igniting, water feeding, two-position control of steam pressure and safety protection together. With running reliable and operating simple, it helps sailors to master the control principle of marine auxiliary boiler based on PLC technology.