There are lots of literature about connected car system from industry and academia. The connected car
is a smart car integrated with IT technology that is connected to people, vehicles and traffic management
systems. It is important to V2I (vehicle to infrastructure) communication which is the connection between
the vehicle and the infrastructure. CIM (cooperative intersection management) is a device to manage the
communication between vehicle and infrastructure. In this paper, we analyze two intelligent vehicle control
methods using CIM at non-signalized intersections. In the first method, a vehicle to pass through
intersection needs to reserve a resource of intersection. In the second method, trajectory patterns on
pre-planned vehicles are classified to pass through intersection. We analyze case studies of two methods to
be implemented by DP(dynamic programming) and ACO(ant colony optimization) algorithms. The methods
can be reasonably improved by placing importance on vehicles or controlling speeds of vehicles.