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发明授权
CN101107530B 转速检测装置及具有该装置的自动变速器控制器 有权

转速检测装置及具有该装置的自动变速器控制器
摘要：
本发明涉及转速检测装置及具有该装置的自动变速器控制器。输入轴转速检测器基于在预定时间段dt1内来自解算器的输出信号检测自动变速器的输入轴转速Nin。输出轴转速检测器计算在预定时间段dt1内从电磁拾取式传感器输出的脉冲信号的数量，并基于在所算得数量的脉冲信号内的脉冲间隔时间检测自动变速器的输出轴转速Nout。对于此构造，用于计算输出轴转速Nout的脉冲信号的数量可以改变，从而使用于计算输入轴转速Nin的来自解算器的输出信号的检测期间与用于计算输出轴转速Nout的脉冲信号的检测期间一致。
摘要（英）：

An input shaft rotating speed detector detects an input shaft rotating speed Nin of an automatic transmission based on output signals from a resolver within a predetermined time period dt1. An output shaft rotating speed detector calculates the number of pulse signals output from an electromagnetic pickup sensor within the predetermined time period dt1, to detect an output shaft rotating speed Nout of the automatic transmission based on the time length of pulse intervals in the calculated number of pulse signals. With this configuration, the number of pulse signals used for calculating the output shaft rotating speed Nout can be changed, to thereby make a detection period of the output signals from the resolver used for calculating the input shaft rotating speed Nin be consistent with that of the pulse signals used for calculating the output shaft rotating speed Nout.

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