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In the present paper the electro-mechanical model of an electric vehicle suitable for battery energy management systems has been presented. In order to verify its accuracy, the comparison between the experimental and simulation results has been carried out. Particularly, the energy battery estimation of a Smart Fortwo electric vehicle has been developed. The electromechanical model describing the...
The electromagnetic launch system is an advanced complex system, which is developed by use of the advantages of the pulse power technology and advanced control technology. To overcome the bottle-neck in the improvement of launching efficiency, this paper has proposed a novel model and analyzed some factors which influence the system efficiency. Simulations and experiments show that increasing the...
Resistive RAM (RRAM) are of great interest to the silicon microelectronics industry, offering the possibility of low programming energy per bit, rapid switching, and very high levels of integration. Moreover a great effort has been devoted to exploring the potential of RRAM in neuromorphic applications. Here we present the study of silicon-rich silica films to establish the switching properties, chemical...
Due to the transient overvoltage or overcurrent when relay's contacts switch different loads, the relay's contacts are damaged by transient arc erosion of electrical-over-stress, which influences the reliability of relay seriously. Firstly, according to the life test requirements of one type of electromagnetic relay with permanent magnets, the load circuit and the testing program are designed, which...
In transport applications (automotive, aviation), the increase of electronic devices promotes an extensive use of electrical connectors which need to maintain a low and stable electrical contact resistance. However, they are subject to vibration, which can cause severe fretting wear damage in the contact, leading to increased electrical contact resistance and decay of information transmission. Presently,...
The impact of 500k write cycles on 1kbits TAS-MRAM arrays has been evaluated by extracting a set of characteristic parameters describing the technology in terms of cell-to-cell variability and switching reliability. The relationship between switching voltages and cell resistances has been investigated in order to define the most reliable working conditions.
In modern agriculture, the knowledge of the soil properties is a key factor for profitability in the production. However, data acquisition and processing are limiting factors for its use, since they require specialized labor. The automatic instrument that provides information about soil penetration resistance, which is described here replaces the traditional system and automatically obtain reliable...
Due to the particular structure of single-sided linear induction motors (SLIMs), e.g. cut-open magnetic circuit, difference between primary and secondary width, they suffer heavily from longitudinal end-effect and transversal edge-effect. Consequently the secondary flux linkage, secondary resistance and thrust are deteriorated, which would increase the copper loss, thrust ripple, and decrease the...
This paper contributes an advanced operational assistance system for a manual guided transfer system such as a crane system and a manual guided vehicle. In the manual guided transfer system, it is required to position precisely and quickly by manual operation. However in the transfer system with vibrational elements such as the crane system, it is difficult to position the transfer object by excited...
For automotive applications, the stability of the supplied electric power depends of the change of electrical resistance. For the case of automotive connectors, an electrical current goes through the connector wire and can be perturbed by the mechanical behaviour of the connector contact area under vibrations and temperature. Such vibrations on the bulk contact device are typically in the range of...
The population of disabled stroke survivors is increasing sharply over the world, and robot-assisted training has been proved to be effective to help motor relearning and alleviate the shortage of physical therapists. This paper presents the design details of a novel upper limb rehabilitation robot named CASIA-ARM, which can assist poststroke patients to perform shoulder and elbow rehabilitation training...
The pipeline endoscopic system is an important developing direction of the underground pipeline detection device. A new design of pipeline endoscopic system is introduced in this paper. Firstly, the force of the system is analyzed, and the motor, used to control the work status of the system, is selected based on the result of the force analysis. Secondly, the drive circuit and the control circuit...
Robot-assisted catheterization has been developed for years, however, only a few systems were clinical applied. Especially in conventional catheter operation system, robot-assisted system is hard to be popularized in clinical endovascular intervention. The active catheter technique gained success but conventional catheter can't be substituted in the short term. Current robot-assisted catheterization...
This paper proposes two decoupling methods for a flexible tactile sensor, improved back propagation neural network (BPNN) and radical basis function neural network (RBFNN). In the numerical experiments, the number of hidden layer nodes of the BPNN is optimized and k-fold-cross-validation (k-CV) method is also applied to construct the dataset. Information of the tactile sensor array at different scales...
Users may have various login ids that will be hard to remember their passwords and alphanumeric passwords are difficult to remember. One solution is to use graphical passwords that are more secure. Some threats of Internet security are spyware and shoulder-surfing attacks. This paper presents a new scheme for graphical password that uses images that are unexplainable and have larger password space...
This paper describes the implementation of sensor-less hill-assist control system in electric Light Commercial Vehicle (LCV). In manual transmission vehicles without hill-assist, the restart at the slope can be done through skilled clutch control. For the vehicles not having clutch (auto transmission or fixed gear electric vehicles), the restart of the vehicle at hill is not possible with driver skills...
Sweeping Vehicle is an important tool to beautify the city environment with the characteristics of low cruise speed, less driving power consumption, and small operating area, which provides a good application prospect for the development of the electric sweeping vehicle. The characteristics of excellent stability at low speed, efficient energy conversion, convenient operability, and environment-friendly...
Triboelectric energy harvesting is a promising energy harvesting technology which converts ambient mechanical energy into electrical energy using triboelectric and electrostatic coupling effects. In this paper, a contact-mode triboelectric energy harvesting device (TEHD) were qualitatively analyzed using a precision test rig, which accurately controlled the contact force and approach speed. From the...
This paper shows how a controls-oriented approach can be used to improve the functionality, energy efficiency and bulk/weight requirements of advanced exercise machinery. Exercise devices for the space environment are the motivation for this research, but other applications are certainly possible. The paper introduces a design concept involving a user force/velocity port, a mechanical transmission,...
To solve the problem of metal-particle pollution in DC GIL, in a more realistic situation of coaxial cylindrical electrodes, the motion analysis of spherical metal particles is done based on DC GIL structure. Based on the theory of fluid mechanics and considering the SF6/N2 mixtures parameters, analysis of the flow resistance in the process of particle movement is proposed. Based on the collision...
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