| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotational angular velocity detecting device for acquiring a middle point value (reference value) with high accuracy, for example, even just after an ignition key of a vehicle is turned on. SOLUTION: A vibration gyro sensor 11 is mounted onto a vehicle, the output value of the vibration gyro sensor when the vehicle stops is obtained and stored as a middle point value in a nonvolatile memory 14. Next, when the vehicle starts just after an ignition key is turned on, rotational angular velocity of the vehicle is detected using the already stored middle point value. |
