REAL TIME RISK ASSESSMENTS USING RISK FUNCTIONS

摘要

A driver assistance system takes as input a number of different types of vehicle environment inputs including positions of hazards such as a road boundary, lane boundaries, and objects in the vehicle's environment. The driver assistance uses the inputs to determining a lane change risk function based on the lane boundary position, a road boundary risk function based on the road boundary position, and a collision risk function based on the object position. The risk functions quantifying the risk posed to the vehicle by the detected hazards. Based on the risk functions, the driver assistance controls an actuator of the vehicle. This may include control of actuators such as the steering wheel, brake system, and gas, as well as audio and visual display and warning systems.

主权项

1. A computer implemented method comprising:
receiving a plurality of vehicle environment inputs comprising a position of each of a plurality of hazards, the hazards comprising a lane boundary, a road boundary, and at least one object; determining a lane change risk function based on the lane boundary position, the lane change risk function quantifying a risk to the vehicle associated with exiting a lane; determining a road boundary risk function based on the road boundary position, the road boundary risk function quantifying a risk to the vehicle associated with exiting a road; determining a collision risk function based on the object position, the collision risk function quantifying a risk to the vehicle associated with collision with the object; and controlling an actuator of the vehicle based on the lane change risk function, the road boundary risk function, and the collision risk function.