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JP2011007586A Malfunction determination device for crank angle detecting device 有权
标题翻译：用于起重机角度检测装置的故障确定装置
公开(公告)号：JP2011007586A
公开(公告)日：2011-01-13
申请号：JP2009150500
申请日：2009-06-25
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： ONO TOSHIHIRO , MASUDA SATORU , NAKAMURA YOSHIFUMI , UCHIDA AKITO , YOSHIHARA MASATOMO , OKAMURA KOJI
IPC分类号： G01D5/244 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a malfunction determination device which can correctly determine failure of a crank angle detecting device which outputs pulse signals whose time widths when a crankshaft is in a normal rotation state and in a reverse rotation state are different from each other.SOLUTION: The crank angle detecting device 40 outputs a pulse signal having a time width α when the crankshaft is in the normal rotation state, and a pulse signal having a time width β different when the crankshaft is in the reverse rotation state at each 10 CAs, and outputs a pulse signal at a cog lacking part 34 of a signal rotor 30 at an angle interval different from those at portions before and after the lacking part. An ECU 50 detects the cog lacking part 34 on the basis of time intervals between pulse signals output from the crank angle detecting device 40, and determines the failure of the crank angle detecting device 40 on the basis of the frequency of detecting the cog lacking part 34.
摘要翻译：要解决的问题：提供一种可以正确地确定曲轴转角检测装置的故障的故障确定装置，其输出当曲轴处于正常旋转状态和反转状态时的时间宽度彼此不同的脉冲信号。解决方案：当曲轴处于正常旋转状态时，曲轴转角检测装置40输出具有时间宽度α的脉冲信号，并且当曲轴处于每10个CA处于反转状态时具有时间宽度β不同的脉冲信号并且以与缺少部分之前和之后的部分不同的角度间隔在信号转子30的齿轮缺少部分34处输出脉冲信号。 ECU50基于从曲柄角检测装置40输出的脉冲信号之间的时间间隔来检测齿轮缺失部34，并且基于检测到齿轮缺失部的频率来判定曲柄角检测装置40的故障 34。

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