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In this paper, the principle of a Contactless Power Transfer (CPT) system is introduced, the situation of CPT system for electric vehicle about excessive startup current, coil short, system overheating and load open circuit are analyzed and research. According to the actual operating conditions of CPT system may exist fault, ready to power on protection strategy, the short circuit protection strategy,...
To solve the logistics problem of uneven order and delivering under the condition of mixed production of assembly shop in automobile manufacturing enterprise, this paper studied the principle of electronic order partitioning, process and logistics information system planning solutions of JIT from leveling aspect, and then verified he effectiveness and practicability of solutions through application...
As an important component of production process, logistic performances make great effect on production system. And logistic cost also takes significant position in production cost which is affected directly by plant facility layout of the enterprise. A method using SLP is given to systematically analyze the problem of actual facility layout of a manufacturing company. Then an optimized scheme is put...
The location selecting of the distribution center is a key factor to affact the cost efficiency of logistics distribution system. A model of the Logistics distribution costing was founded in this paper, which is based on a 5 years' data of a large logistics distribution enterprise which is engaged in automotive components manufacturing. As the Baumol-Wolfe method says, we conduct a phase measurement...
Dynamic changes of grid entities can result in security problems in the grid environment and in efficient use of resources. Resource provider may maliciously exaggerate resource performance and unilaterally contract termination. The original deadline and budget constraint method for resource scheduling is not suitable for unreliable environment. By employing trust mechanism into grid environment,...
A brief summary of some of the relevant concepts in 3D geosciences modeling and 3D geological modeling is presented firstly. Then, the main emphasis is placed on the problem of feature-based 3D geological modeling, instead of 3D spatial data model which has been discussed so much. Although some progress has been made in this area, the major obstacle, representation and modeling of complex geological...
This paper describes SBW system structure and principle, establishes the dynamistic model of vehicle and SBW system. As is well known, the steering characteristics indicate handling performance on a vehicle and are important for safe driving, in this paper, a strategy to improve vehicle's stability and fast respond is proposed, which is based on ideal transmission ration and utilize yaw rate feedback...
Energy and environment problems have been becoming more and more serious. Either electric power corporations or traditional automobile enterprises have taken part in novel electric vehicle development. Whatever, Variable and dynamic loads are required in order to satisfying variable working conditions in the electric vehicle (EV) experiments of the traffic. The scheme of power electronic impendence...
Introduced a CAN bus data acquisition and calibration system, which is based on USB interface. The system integrates applications of the CAN bus and USB bus, two kinds of means of communication. It has the advantages of specific CAN Bus and USB communication such as long-distance, high-performance communications and flexible connectivity, high reliability, and can be applied to many occasions of the...
Real-time communication system is widely used to smart grid. The real-time performance and reliability are compared between CAN bus and FlexRay bus in theory. Then a steer-by-wire system experimental platform, which using the FlexRay bus, is built to verify the analysis results. The test results show that FlexRay bus has strong real-time performance and high reliability and are more suitable for high-speed,...
PEMFC has being applied more and more in automobile and distributed generation for its low corrosion, low-temperature operation and environment-friendship a complex systems and it is expensive. It should be concerned over the control and maintenance of its auxiliary equipments, placement site, restoring of hydrogen and the other when real PEMFC is used. However, PEMFC's volt/ampere external characteristics...
Unshielded twisted pairs (UTPs) are widely used in CAN bust system to decrease interference. In order to predict the interference from external environment, the PUL parameters of UTPs must be gained. By measuring the input short- and open-circuit impedances, the transmission line parameters of unshielded twisted pairs are gained. The FDTD method is used to simulate the transient process of UTPs (crosstalk)...
A new type insulation resistance on-line monitor has been designed for hybrid electric vehicle (HEV). It is mainly composed of a proportional circuit and data sampling, processing module. The device detects insulation resistance by sampling DC bus voltage and voltage between positive line and chassis. The voltages sample is controlled by electronically controlled unit (ECU). These voltages are isolated...
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