| 摘要 |
PROBLEM TO BE SOLVED: To obtain a device for detecting behavior of vehicle and the detection accuracy of which does not deteriorate even when the sensitivity of a yaw rate sensor and an acceleration sensor change due to a temperature change by making the sensitivity and temperature characteristics of the sensors have the same trend and arranging the sensors in one package. SOLUTION: When the yaw rate sensor unit 40 of a device for detecting behavior of vehicle has such sensitivity and temperature characteristics that the output level of the unit 40 rises (or falls) in accordance with the rise of the temperature, an acceleration sensor unit 41 which has such sensitivity and temperature characteristics that the output level of the unit 41 rises (or falls) in accordance with the rise of the temperature is used for the device. The units 40 and 41 are housed in one package 43 so as to make the temperature environments of the units 40 and 41 nearly equal to each other. Since both units 40 and 41 have the same trend in the sensitivity and temperature characteristics, the detection accuracy of the device which detects the behavior of a vehicle based on the detecting signals of the units 40 and 41 does not change even when the sensitivity of the unit 40 and 41 change, because the temperature drifts of the units 40 and 41 similarly change. |
