The invention provides a lane changing intention recognition method based on a driving style. The method comprises the following steps: firstly, acquiring driving behavior data in a car-following scene through a
driving simulation experiment, and constructing a multi-dimensional
data set comprising a self-car state, a front-car state and time-space car-following characteristics; then, on the basis of an expected
safety margin model, identifying reaction characteristics, steady-state
risk characteristics and operation characteristics of a driver, and extracting behavior parameters forming a driving style, including indexes such as reaction time, an expected
safety margin interval and operation sensitivity; and further dividing the drivers into different style types by using a clustering
algorithm, and endowing style labels with the drivers. On the basis, lane changing intention
time information subjectively marked by a driver is collected through a non-control observation experiment and is aligned with the trajectory data, and a trajectory
data set with a real intention
label is constructed. And finally, constructing a
dynamic Bayesian network model based on the
data set, taking a historical driving
state sequence in a
fixed time window as input, fusing a driving style, interaction characteristics of a vehicle and surrounding vehicles and
traffic flow characteristics, and realizing real-time identification of whether a lane changing intention exists at the current moment. The method has good
interpretability, individual difference adaptability and
engineering deployment, and is suitable for dynamic identification and
response control of driver intention in an intelligent driving assistance
system.