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The vehicle dynamics model and desired target tracking model were established. The variable structure controller for active front steering (AFS) and direct yaw moment control (DYC) is designed using sliding mode control (SMC) technique considering the external disturbance and system uncertainty. The step input and sine input simulation results show that the yaw rate and side slip angle of the vehicle...
As an advanced management mode with budget as an instrument, comprehensive budget management is widely applied abroad. However, its application in China is faced with many problems, and its further application is thus greatly hindered. As a new method of cost management, operation management is formed based on operation cost and its key lies in operation analysis. Comprehensive budget management based...
By employing a comparative analytical approach in this study, the author puts forward that, the fiancial difficulties of listed companies should not only endanger their own survival, but also harm the interests of their investors, creditors employees and other stakeholders, and have serious influence on the nation and society as well, and once listed companies run into financial difficulties, they...
Finance is the core of modern economy, further reform and opening of financial enterprises are important guarantee of realizing the 12th Five Year Plan, which indicates that the Chinese finance industry is facing more challenges. It is the core of reforming and opening-up to strengthen internal management and control, guard effectively against and defuse financial risks in the financial enterprises...
To solve the performance degeneration even instability of permanent magnet synchronous motor (PMSM) control system during the running process as the change of electromagnetic parameters, a novel scheme based on parameter identification has been proposed. In this paper, real-time parameters are identified by using recursive least squares method which update stator resistance Rs and armature inductance...
For the variable-spray control system based on machine vision, it is highly required to real-time image acquisition, processing as well as drive the actuator rapidly and stably. To reduce the developing cycle and programming difficulty, VB program language is used for its high executive efficiency to collect real-time information and control signals; meanwhile, MATLAB software is adopted for its excellent...
Under the different capital strength and district environment, citibanks create two typical development mode in our country. Citibanks managing in one city could cause credit risk and liquidity risk. Under the different places expansion mode, citibanks could create operational risk and moral hazard growth. We should perfect legal system and strengthen regulation to control risks of citybanks.
This paper mainly discusses the general management defects influencing considerably the effectiveness and efficiency of internal control construction of listed companies in China from six aspects, and it also offers the targeted countermeasures and suggestions correspondingly. The objective of this paper is to provide certain solutions concerning the amelioration of the internal control mechanism...
Over the past decades, information and communication technologies are more and more integrated into process control system, cyber-security becomes a crucial issue for enterprise information system. This paper first gives a layered view of process control oriented information system. Based on this layered structure, the vulnerabilities of the system is identified. Further study is focused on the monitor...
The paper research and analyze the status quo of Information Disclosure of Henan Listed Companies' Internal Control from 2007 to 2009, then explores these questions that the supervision strength and voluntary disclosure's motive for Information Disclosure of Henan Listed Companies' Internal Control is not enough. Further, the paper raises suggestions for better.
Based on stability theory and Lyapunov method, two schemes are provide for synchronization of a hyperchaotic system. The first schemes synchronizing the hyperchaotic system with three controller, the second schemes based on a backstepping procedure, the response system need only one single controller to realize synchronization. numerical simulations have verified the effectiveness of the method..
For the total pressure and slurry level are nonlinear and coupled in the air headbox, through the use of genetic algorithm to optimize PID neural network weights to achieve the P, I, D the best combination to complete the total headbox flow Pressure and slurry level decoupling control.Finally, the MATLAB simulation shows that the method has high control accuracy, fast dynamic response, the use of...
By analyzing the composition and working principle of air controlled hydraulic system and referring to similar models, the design of the tank, the limiting mechanism and power taker are conducted. 3201Z-type dump truck is modification desiged by EQ3208GJ dump truck chassis which the technical performance parameters are known, and using a lifting mechanism of air controlled hydraulic system. By calculating...
Wet flue gas desulfurization technology by using limestone gypsum has following advantages such as excellent adaptability for changes of coal and unit load, high desulfurizing efficiency, cheap absorbent, high reliability, and using less energy. So it's widely used in our country. This paper introduces the glue gas desulfurization process, network structure, main analog variable control system, sequence...
Binocular stereo vision motion platform with 3-DOF is designed by UG soft in this paper, the structure and control system of the platform is simulated by using ADAMS and MATLAB in order to verify the rationality and kinematical accuracy.
The study on the auto-searching for track of intelligent vehicles, the fuzzy self-adaptive pid control are applied to the problem, through flexible formulate fuzzy rules and online setting PID parameters, It has been improved that the steering gear system's dynamic response, steady-state accuracy, robust indices such as performance. Under different driving circuit, the intelligent car can drive more...
Based on the mathematical model of brushless direct current (DC) motor, this paper uses the Simulink to model and emulate the brushless DC motor control system. The models of back EMF and current control module are obtained by using the look-up table. Thus, the system is more intuitive, more streamlined and easier to change models. The current and the torque waveforms got from the simulation are basically...
As a kind of air-based platform, airship attracts growing attention in emergency communication work. An emergency communication system based on airship and BNSS (Beidou Navigation Satellite System) is showed in this paper. This paper first showed the composition of the airship system. Then the scheme of the network consist of different kinds of airship is studied. Finally, the airship cluster control...
The touch screen is a kind of human- machine interface with friendly interface and operability, it is replacing the console and displays as a trend. In this paper, a constant current discharge monitoring system of the battery is designed, which uses touch screen and PLC. Hardware components, constant discharge principle and design of touch screen configuration are described. It has the advantage of...
With the rapid development of embedded technology and the continuous merger of machine building process automation and production management digitalization, Ethernet technology based on network and embedded chip gradually developed into the field of mechanical control. In this paper, it describes the characteristics of embedded control chips, researches on the applications of embedded control chips...
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