Pre-warning method for vehicle

The invention discloses a pre-warning method for a vehicle. According to the method, the most appropriate pre-warning rule can be customized according to specific feature information of the vehicle, the pre-warning accuracy is high, and risks in the vehicle driving process are greatly reduced. The method is executed by a vehicle terminal and a background processing system mounted on the vehicle and comprises steps as follows: (1), indexes requiring attention are abstracted according to factors related to driving safety, and a corresponding weighted value is set for each index; (2), vehicle data are collected and comprise static data, vehicle driving dynamic data, space data and driver information; (3), a risk coefficient of each index is calculated according to the weighted value of each index and the corresponding vehicle data, the risk coefficients of all the indexes are accumulated, and a total risk coefficient is obtained; (4), whether the total risk coefficient is in a specified range is judged, if yes, the step (5) is executed, and otherwise, the step (2) is executed; (5), a pre-warning message is sent to the vehicle terminal.