US Patent 10227073 Vehicle system

A vehicle system includes a driving operation information acquisition unit acquiring an operation amount of a driver's driving operation, a driving state switching unit switching a driving state of a vehicle between a first driving state and a second driving state based on a relationship between the operation amount and a first threshold, the first driving state including at least one of an autonomous driving state and a cooperative driving state, and the second driving state allowing the driver's driving operation to be reflected in the traveling of the vehicle, and a notification unit notifying a driver of a relationship between the first threshold and a state of the operation amount.