Patent ID: 9324233
Filing Date: 2016-04-26
CPC Classification: G08G

Claim Text:
1. A vehicle contact warning method comprising: preparing host vehicle information pertaining to a host vehicle including a host vehicle location and a host vehicle trajectory; receiving with a receiver at the host vehicle, a remote vehicle message including information pertaining to a remote vehicle including a remote vehicle location and a remote vehicle trajectory; determining with a controller a location relationship between the host vehicle location and the remote vehicle location, the location relationship including a straight line between the host vehicle location and the remote vehicle location, and an angle between the host vehicle heading and the straight line based on a fixed coordinate system and a preselected angle direction; determining with the controller whether the host vehicle and the remote vehicle are travelling on converging paths based on the location relationship; determining with the controller a possibility of contact between the host vehicle and the remote vehicle at a contact location at a contact time based on a host vehicle travel time from the host vehicle location to the contact location that is determined based on the host vehicle information and a remote vehicle travel time from the remote vehicle location to the contact location that is determined based on the remote vehicle information; and issuing automatically an external warning for perception at at least one of the remote vehicle and the host vehicle upon determining the possibility of contact exists between the host vehicle and the remote vehicle at the contact location and the time to contact has decreased below a remote vehicle warning threshold.