| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of difficulty in assuring diagnosis precision and diagnosis frequency about presence of abnormality, relating to a current sensor that detects a current flowing a motor generator. <P>SOLUTION: In a step S12, it is determined whether a deviation of "1" from the inclination of a straight line that connects between current detection values iua(n) and iub(n) by a pair of current sensors for detecting a current flowing in the same phase with previous detection values iua(n-1) and iub(n-1) is a threshold value δ or less. If the deviation is the threshold value δ or less, it is diagnosed as normal in a step S14, but it is diagnosed as abnormal in a step S16 if the threshold value δ is exceeded. <P>COPYRIGHT: (C)2011,JPO&INPIT |
