Computationally efficient intersection collision avoidance system

US8639437B2 · kind B2 · utility

Assignees

• TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC. · US
• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Lorenzo Caminiti · Ann Arbor, US
• Evan Edward Quisenberry · Berkley, US
• Christopher Peplin · Pittsburgh, US
• Domitilla Del Vecchio · Ann Arbor, US
• Rajeev Verma · Savanuru, IN

Key dates

• Filing date: Jun 9, 2010
• Grant date: Jan 28, 2014
• Expiry date: Sep 16, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G08G1/163
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The present invention discloses a back-propagating intersection collision avoidance (ICA) system for preventing two or more vehicles from colliding at an intersection. The ICA system can calculate predicted positions of the two or more vehicles in the near future, and both the current and future positions can be broadcast to surrounding vehicles using vehicle-to-vehicle communication. For each vehicle, a set of states, for example position, speed, acceleration, and the like, where a collision is imminent can be identified using state information for a local vehicle, a remote vehicle, and a known collision zone for the intersection. If the current states of the vehicles are determined to be in danger of entering the collision zone, the ICA system can control the vehicles to perform evasive driving maneuvers and/or alert the drivers.