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The EPS torque angle sensor reliability prediction based on combination model
Author(s): 
Pages: 80-84
Year: Issue:  7
Journal: Practical Measurement Technology

Keyword:  torque angle sensorsgrey GM(11) modelresidual error correctionMarkov chain;
Abstract: To improve the electric power steering system performance,designed a kind of electric power steering system torque angle sensors, and establish the mathematical model to estimate the reliability of the sensor. On the basis of experiment comparing the grey GM( 1,1) model and residual correction gray GM( 1,1) model and the prediction accuracy of gray Markov chains model residuals amended. Because a single model is difficult to ensure the prediction accuracy level, so by calculating the combined model different steps transition probability matrix determines the target state, then get the predicted value. By comparison, combination model is better than a single model of precision, but also the question of appropriate description randomness.
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