发明名称 INDICATOR FOR VEHICLE
摘要 PROBLEM TO BE SOLVED: To provide an indicator for vehicle for automatically determining whether a pointer has abnormality in rotation or not.SOLUTION: A pointer 20 indicates a vehicle condition value according to a rotation position between a zero position P0 and a maximum position Pmax. A step motor M rotationally drives the pointer 20 due to that a drive signal corresponding to an electric angle is applied to field coils 32, 33. A control unit 50 for controlling the electric angle of the drive signal applied to the filed coils 32, 33 executes an away-from-zero control for changing the electric angle so as to rotate the pointer 20 from the zero position P0 to the maximum position Pmax, and determines whether the pointer 20 has abnormality in rotation or not based on the electric angle when the stop of the pointer 20 is detected during the away-from-zero control.
申请公布号 JP2013242160(A) 申请公布日期 2013.12.05
申请号 JP20120113715 申请日期 2012.05.17
申请人 DENSO CORP 发明人 IWASHIMA KEIICHI
分类号 G01D13/22;G01D11/16 主分类号 G01D13/22
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