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Based on the need for sensor-less control of interior permanent magnet (IPM) brushless motors, a computer-aided design method for phase inductance optimization is put forward. With this method, repeated manual design process is alleviated, and ideal phase inductance waves can be obtained which is beneficial to sensor-less control of IPM brushless motors. Besides, cogging torque is reduced and motor...
Stereo-vision plays an important part in planetary exploration. A high-precision calibration method is introduced for such system, which uses wide-angle lens. It makes use of planar homography constraint to estimate intrinsic and extrinsic parameters. On the basis of this initial guess, an optimization scheme is used to minimize a new cost function, 3D reprojection error sum. All calibration parameters...
In this paper, an optimal design to minimize the cost of the fuel cell and supercapacitor in a fuel-cell electric vehicle is presented. It is assumed that the cost of the fuel cell and supercapacitor is a function of the number of units of each, respectively. The constraints on the number of fuel-cell units and supercapacitor units are derived according to the system requirement of maintaining stable...
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