| 摘要 |
PROBLEM TO BE SOLVED: To provide the driving state monitor device for a vehicle which can improve the decision precision of the driving state of a driver by grasping the behavior of the vehicle more accurately through relatively easy operation. SOLUTION: A correction yaw angle YAM is calculated as a reference difference calculated from a 1st yaw angle YA1 obtained from a 1st detection data group sampled in a 1st sampling cycle TS1 and a 2nd yaw angle YA2 obtained from a 2nd detection data group sampled in a 2nd sampling cycle TS2 longer than the 1st sampling cycle TS1 (a zigzag component is extracted) (S12), a lateral displacement differential quantity DYK and a deviation quantityΔDIF1 representing the behavior of the vehicle is calculated by using the correction yaw angle YAM (S13, S15), and the driving state is decided on the basis of the deviation quantityΔDIF1 (S16).
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