| 摘要 |
A driving state monitoring apparatus for a vehicle, for monitoring the driving state of the driver of the vehicle is disclosed. A behavior parameter indicative of an amount of lateral movement of the vehicle and the speed of the vehicle is detected. A simple regression line is obtained according to changes in the behavior parameter and the simple regression line is set as a behavior reference. A lateral deviation behavior quantity of the vehicle is calculated according to the behavior parameter, the behavior reference, and the vehicle speed. It is determined according to the lateral deviation behavior quantity whether or not the driving state of the driver is proper. The shape of a road on which the vehicle is running is determined. When the road shape is determined to be substantially straight or curved with a substantially constant radius of curvature, and the driving state of the driver is not determined to be proper, it is determined that the driving state of the driver is abnormal.
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