发明名称 |
ABNORMALITY DETERMINATION DEVICE FOR ROTATION SENSOR |
摘要 |
<p>Disclosed is an abnormality determination device for a rotation sensor for detecting the rotation of a crankshaft. The rotation sensor comprises a first sensor unit and a second sensor unit which output signals phase-shifted from each other, and outputs a pulse signal. When the direction of change of the output signal of the second sensor unit is a first direction, the pulse signal having a first duration is outputted. When the direction of change of the output signal of the second sensor unit is a second direction, the pulse signal having a second duration is outputted. The abnormality determination device comprises a calculation unit which calculates the time interval between the output start times of the pulse signal, and a determination unit which determines that the rotation sensor is abnormal when the difference between two time intervals calculated continuously by the calculation unit is larger than a threshold value.</p> |
申请公布号 |
WO2011078130(A1) |
申请公布日期 |
2011.06.30 |
申请号 |
WO2010JP72923 |
申请日期 |
2010.12.20 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA;UCHIDA, AKITO;NAKAMURA, YOSHIFUMI;YOSHIHARA, MASATOMO;MASUDA, SATOSHI |
发明人 |
UCHIDA, AKITO;NAKAMURA, YOSHIFUMI;YOSHIHARA, MASATOMO;MASUDA, SATOSHI |
分类号 |
G01D5/244;F02D29/02;F02D45/00 |
主分类号 |
G01D5/244 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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