发明名称 |
CONTROL METHOD OF THE POSITION OF A SOLENOID VALVE USING DITHERING |
摘要 |
Control method of the position of a solenoid valve using dithering; the control method provides the steps of: determining a target current across the solenoid valve which is expressed in digital form with a given minimum quantization interval; adding a dithering square wave to the target current; controlling the voltage applied to the solenoid valve to cause the current across the solenoid valve to track the target current added to the dithering square wave; jiggling the dithering square wave with a frequency which is a sub-multiple with respect to the maximum variation frequency of the current across the solenoid valve; and varying the amplitude of the dithering square wave for a fraction of the period of the dithering square wave itself and by an amount equal to the minimum quantization interval for temporarily determining a deviation of the mean value of the dithering square wave with respect to zero and therefore obtaining a corresponding variation of the mean value of the target current.
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申请公布号 |
US2011246035(A1) |
申请公布日期 |
2011.10.06 |
申请号 |
US201113043321 |
申请日期 |
2011.03.08 |
申请人 |
FERRARI S.P.A. |
发明人 |
TARANTINI ALFONSO;IMPERIOLI BRUNO;POGGIO LUCA |
分类号 |
F16H61/02;F16K31/02 |
主分类号 |
F16H61/02 |
代理机构 |
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地址 |
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