| 摘要 |
In a travel angle detection system for a mobile object having a detector installed in the mobile object to produce angular velocity outputs successively, the detector outputs are read and one output is determined as a provisional calibration value indicative of zero-point. Integrated values of differences between the calibration value and successive outputs and output variation width are calculated. When they are within predetermined permissible ranges, the mobile object is determined to be in static condition and the calibration value is corrected by an average value of the integrated values. The travel angle of the mobile object is detected from the calibrated outputs of the detector, thereby achieving accurate calibration of detector output by enabling accurate determination of the static condition.
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