| 摘要 |
PROBLEM TO BE SOLVED: To enable optimal driving support by exactly estimating a driving state of a driver from a steering state of a steering wheel.SOLUTION: A data group relating to a steering angle of a steering wheel detected by a steering angle detecting portion 11, a pressure distribution of the steering wheel detected by a steering wheel pressure detecting portion 12, and a temperature distribution of the steering wheel detected by a steering wheel temperature detecting portion 13 are collected in time series by a data collecting portion 14, and a gripping state estimating portion 15 compares an initial data group at the start of driving with a data group during driven to estimate a gripping state of a driver such as a grip position, an area, and grip strength of the steering wheel. A contact pattern recognizing portion 16 recognizes a contact pattern on the basis of changes in the grip state, and a driving state estimating portion 17 estimates a driving state of the driver from the contact pattern. Therefore, the driving state of the driver such as abrupt steering wheel operation, steering wheel operation with little change, and slow steering wheel operation in a fatigue state can be precisely estimated, and optimal driving support including an alarm is enabled.SELECTED DRAWING: Figure 1 |
