Advanced Materials Research Vols. 308-310

Abstract: The rotation speed and drive scheme with 01M and ZF 6-speed automatic transmission were analyzed intuitively based on lever method, the design reasonableness of transmissions scheme was verified with 01M automatic transmissions from three angle of design as well; Meanwhile, the leverage method was extended, the transmissions of ZF 6-speed AT were analyzed based on the lever method extended too.

Abstract: Based on the structure and failure features of a new type of outer mesh and “two teeth difference” planetary gear transmission, a optimize method for the gear’s parameters is pointed out avoid of structure failure. The modification coefficients of the gear pairs are obtained through optimization design, so the sliding coefficient for the driving gear, driven gear and planetary gear tending to be equal. The relative slide between gears is reduced, and the working life of the structure is increased greatly.

Abstract: This paper introduces a new open CNC system for winding machines which can overcome the shortcomings the traditional winding machine existed, such as the low control-accuracy, the low speed and the poor quality of its product. The system takes Microprocessor MC68HC000 as the core and its working mode is centralized control and time-sharing processing. The highest drive pulse of the system reaches 500 KPPS and the drive aufloesung can be as high as 0.001mm/Pulse. So, the system software, together with the winding machines’ development kits and operating software, can provide an open design platform of the controller for the winding machine, and it may cater to the market’s needs for winding machines

Abstract: Nowadays when automobiles become popular to millions of households, its hidden trouble of road safety seems to be more serious. Traffic accidents happen frequently these years with the increase construction of highway and expressway, and they have done great harm to drivers as well as our society. This paper studies the fuzzy control rule of anti-vehicle rear-end collision on the base of Matlab and Simulink software, and the relative measures have also been explored and put forward.

Abstract: In order to solve the problem which causes high failure rate and low production efficient in the relay-contactor control system of hydraulic metal band-sawing machine, according to the technological requirement in the sawing process, the article uses PLC as controller to control hydraulic equipment automatically. The results showed that: the control circuit not only satisfies the technological requirement, but also makes sawing more stable and high efficiency.

Abstract: Electrical Parking Brake is a system comprises the temporary brake of driving and long-term parking brake, and controlled by electrical. This paper researches the electrical parking brake system which is in using and on developing, illustrates the design and control of electrical parking brake system, and simulates the braking effect. This Electrical Parking Brake can saves energy and reduces handle difficulty.

Abstract: The popularity of modern automobiles requires better using performances of them, even better security and environmental protection. So, there are some electrically controlled equipment used in a modern automobile. Since this, it is urgently necessary to develop an integrated or synthetical control strategy in automobiles by using new technologies and advanced algorithms. In this paper, a new method based on the holon conception is presented to study the synthetical control in automobiles [1-3]. The control system is divided into three levels and is defined as three holons, and the function of every holon level is discussed. The coordinated model is established to study the coordination strategy among different holon levels, which will help to improve the synthetical control efficiency, security, stability and environmental protection and etc. of modern automobiles [4-5].

Abstract: In this paper, a design method that teaching and playback of motion trajectory based on the double-pole angles rotation parallel mechanical arm is introduced. Take writing as example, each stroke of the word can be fitted by the line and then the beginning and the end of the segment can be used as the teaching points. Using Siemens S7-200PLC’s counter to record the data of the encoder on the teaching point, completing the teaching. When playback, plc reads the data of the teaching points recorded and controls the input pulse of motors, uses the linear interpolation to complete playback of writing. The parallel manipulator’s structure is simple, it can easily be controlled and has rich working space and low cost.

Abstract: This paper describes the development of a controller design for the active control of suspension system, which improves the inherent tradeoff among ride comfort, suspension travel and road-holding ability. The developed design allows the suspension system to behave differently in different operating conditions, without compromising on road-holding ability. The effectiveness of this control method has been explained by data from time domains. Proportional-Integral-Derivative (PID) controller including hydraulic dynamics has been developed. The displacement of hydraulic actuator and spool valve is also considered. The Ziegler – Nichols tuning rules are used to determine proportional gain, reset rate and derivative time of PID controller. Simulink diagram of active suspension system is developed and analysed using MATLAB software. The investigations on the performance of the developed active suspension system are demonstrated through comparative simulations in this paper.

Abstract: This paper discusses the function of modern design method in the scheme design process of the detective vehicle for straddle type monorail. Meanwhile, the flows of function division method and how to apply it are analyzed in detail. Finally, the most appropriate scheme is chosen after comparing all the possible schemes. At one time, the useful exploration of modernization, regularization and hierarchy of similar products has been made.