2results about How to "Increase traffic flow" patented technology

The application discloses a highway cooperative decision safety driving method, comprising the following steps: S1, acquiring vehicle end sensing information and road end sensing information and performing information fusion; S2, establishing a plane rectangular coordinate system, and establishing a speed potential field, a lane potential field, a road boundary potential field and a solid obstacle potential field on a road surface according to the fused sensing information; wherein the speed potential field enables a vehicle to travel at a set expected speed, the lane potential field enables the vehicle to travel in a current lane, the road boundary potential field enables the vehicle to travel away from a road boundary, and the solid obstacle potential field enables the vehicle to travel away from a solid obstacle; S3, a traveling vehicle is affected by a total potential field formed by superposition of the speed potential field, the lane potential field, the road boundary potential field and the solid obstacle potential field, and target accelerations of the vehicle in a driving direction and a transverse direction are obtained according to a potential field intensity gradient of the total potential field at a vehicle position in the driving direction and the transverse direction; and S4, the vehicle travels according to the target accelerations in the driving direction and the transverse direction.

The application provides a traffic flow cooperative multi-vehicle path planning and scheduling method, device, equipment and medium, and relates to the technical field of automatic driving path planning and scheduling. The method comprises the following steps: acquiring positioning sequences of multiple online vehicles, constructing lane segment passing samples and connection segment waiting samples according to the positioning sequences, and counting passing time statistical values of each lane segment and waiting time statistical values of each connection segment; in response to a path request, generating a main path and asynchronously generating a candidate path set with differences; at a periodic decision time, determining a current path of each vehicle and a path cost of each candidate path based on the statistical values, and determining a benefit value of each candidate path according to a comparison result of the path cost; according to the benefit value and a preset switching condition, selecting a candidate path to be switched according to a single-period maximum switching ratio, and updating the candidate path to the current path of the corresponding vehicle, thereby effectively improving the problems of local congestion and secondary congestion caused by independent decision-making of vehicles and lack of cooperative mechanism.