| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotation angle detecting apparatus used for the rotation angle detection of the steering of an automobile which can surely detect a rotation angle. SOLUTION: The rotation angle detecting apparatus comprises an acceleration detecting means 16 for detecting the lateral acceleration of a tire and a control means 15 for detecting the rotation angle of a rotor 1 from detection signals of the acceleration detecting means 16 and first and second rotation detecting means 9, 10. When these data are different by a predetermined range or more, the control means 15 decides that either of them is wrong. The wrong data is prevented from being output to the electronic circuitry of the vehicle, thereby allowing the rotation angle detecting apparatus to perform sure rotation angle detection. COPYRIGHT: (C)2007,JPO&INPIT
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