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It is convenient and useful to use the Monte Carlo simulation (MCS) in project schedule management, but at the same time, it provides very few management indexes for schedule risk analysis. Therefore, based on PERT network assumption, the shortcomings of current construction schedule management indexes are summarized and new construction schedule management index is put forward to calculate the criticality...
With the energy crisis and environmental pollution becoming more and more serious, the traditional fuel vehicles have exposed many shortcomings. Electric vehicles gradually became the focus attention of both governments and car manufacturers, and the popularity of electric vehicles will be the inevitable trend of social development, so the electric vehicles charging station will become indispensable...
In this paper, KZQ-36T-300 multi-model controller is used for separate excitation electric motor which is used for material handing electric vehicle. It can control the motor rate and torque to make it in smooth, mute and low. The electromotor ECU testing system aim at the feature of KZQ-36T-300 multi-model controller, imitate many different road and working condition, imitate accelerator output the...
The brushless DC motor as the electric steering gear servo motor has become the future direction of development of small unmanned aerial vehicle(UAV) swarm steering gear, According to the problem of the optimization of the electric steering gear controller, the electric steering gear position controller PID parameters optimization design method based on artificial fish swarm algorithm is put forward...
We propose a multi-point correction method to design a CMOS current-mode function with high input dynamic range. The dynamic range is dependent on the number of correcting circuits. Consider the accuracy, we can properly select the turn-on current in the correcting circuit. The exponential circuit for a design example, equipped with six correcting circuits, has a linearity of 39.5dB for linearity...
In order to solve the transfer function modelling and controller parameter optimization of control systems, a novel design scheme is presented based on prony and particle swarm optimization (PSO) method. In this scheme, an impulse signal is applied to the input of controlled member firstly, and then output signal is estimated by prony analysis to get the transfer function. Finally, controller parameter...
Recently The electronic weighing apparatus has been applied more and more in data processing and process control. The traveling overhead crane has been widely applied in metallurgy and freight transportation. Now, the measure for the load of Traveling overhead crane mostly adopts mechanical load safety device or simply electronic weighing device. But in its actual application, there must be some problems...
We propose a multi-segment approximation method to design a CMOS current-mode hyperbolic tangent sigmoid function with high accuracy and wide input dynamic range. The dynamic range is dependent on the number of segments and the accuracy is related to the dividing point. From mathematical results, we can observe the proposed method outperforms traditional methods. We implement the multi-segment approximation...
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