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发明公开
CN110609188A 油量计量单元老化的检测方法、装置及设备 有权

油量计量单元老化的检测方法、装置及设备
摘要：
本发明提供一种油量计量单元老化的检测方法、装置及设备，该方法通过确定油量计量单元在目标时间段中的至少两个时间段内的驱动电流变化率；该目标时间段为一个脉冲周期的导通时间段或者一个脉冲周期的关闭时间段；确定该至少两个时间段内任意两个时间段的驱动电流变化率的差值；若存在至少一个差值大于预设阈值，则确定该油量计量单元老化。该方法能够及时发现油量计量单元的老化故障，保证发动机的控制精确度和运行可靠性。
摘要（英）：

The invention provides an oil mass metering unit aging detection method and device and equipment. According to the method, driving current change rates of an oil mass metering unit in at least two time periods of a target time period are determined, wherein the target time period is an on time period of one pulse cycle or an off time period of one pulse cycle; a difference value between the driving current change rates in two arbitrary time periods among the at least two time periods is determined; and if at least one difference value is greater than a preset threshold, it is determined that the oil mass metering unit is aged. Through the method, an aging fault of the oil mass metering unit can be discovered in time, and the control precision and running reliability of an engine are guaranteed.

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