Driving assistance apparatus

摘要

A driving assistance apparatus is provided with: a storing device for storing each of a plurality of past driving situations of a self-vehicle as a group of a plurality of driving situation factors, for storing, correspondingly to each of the plurality of past driving situations, an action characteristic value and a driving situation occurrence frequency, and for storing, correspondingly to each of the plurality of driving situation factors, a factor influence value and a factor change frequency; an estimating device for estimating a future driving action of the driver on the basis of the plurality of past driving situations, the action characteristic value, the driving situation occurrence frequency, the factor influence value, and the factor change frequency; and a performing device for performing driving assistance in accordance with the estimated driving action.

主权项

1. A driving assistance apparatus, mounted on a self-vehicle, for performing driving assistance for a driver of the self-vehicle, said driving assistance apparatus comprising:
a storing device for storing each of a plurality of past driving situations of the self-vehicle as a group of a plurality of driving situation factors, for storing, correspondingly to each of the plurality of past driving situations, an action characteristic value indicating an action characteristic of the driver in the past driving situation and a driving situation occurrence frequency indicating a frequency at which the past driving situation occurs, and for storing, correspondingly to each of the plurality of driving situation factors, a factor influence value indicating extent of an influence of the driving situation factor on the action characteristic and a factor change frequency indicating a frequency at which the driving situation factor changes; an estimating device for estimating a future driving action of the driver on the basis of the plurality of past driving situations, the action characteristic value, the driving situation occurrence frequency, the factor influence value, and the factor change frequency; a performing device for performing the driving assistance in accordance with the estimated driving action; and an information transferring device for transferring to a remote database a past driving situation in which the driving situation occurrence frequency is less than a predetermined first reference frequency out of the plurality of past driving situations stored in an in-vehicle database if an information amount associated with the plurality of past driving situations, the action characteristic value, the driving situation occurrence frequency, the factor influence value, and the factor change frequency, which are stored in the in-vehicle database, is greater than or equal to a predetermined reference information amount.