Abstract: A vehicle safety illumination method and arrangement is provided including a head light control unit for modulating an intensity of a head light of a vehicle between a low beam mode and a high beam mode. The arrangement may include a switch for actuating the head light control unit, and sensors to detect an object in front of the vehicle. The arrangement also includes a processor to determine if an object detected constitutes a potential collision threat to the vehicle. The arrangement is arranged to actuate the head light control unit if an object in front of the vehicle is determined to constitute a potential collision threat to the vehicle.

Abstract: A method for determining the time to collision between a host vehicle and an oncoming target vehicle, and for determining the necessary host vehicle deceleration for bringing the host vehicle to a standstill at the moment of collision. The method furthermore comprises the steps: determining the position (pH) of the host vehicle as a function of time; determining the position (pT) of the target vehicle as a function of time; for the moment of collision, as a first condition, setting the position (pH) of the host vehicle equal to the position (pT) of the target vehicle, and, as a second condition, setting the velocity (vH) of the host vehicle to zero; using the positions and the conditions above to solve for the time to collision and the necessary host vehicle deceleration; and choosing the solution for time to collision that is positive and has the largest value.

Abstract: A method for determining a safety zone of a foreign object for a forward collision risk reduction system. The method may include determining the type of the foreign object; setting the safety zone to a predetermined value corresponding to the type of the foreign object; determining the traffic behavior of the foreign object; determining if the traffic behavior corresponds to a species of a predetermined group of traffic behaviors; and if the traffic behavior corresponds to a species of a predetermined group of traffic behaviors, modifying the safety zone in accordance with a predetermined species function corresponding to the species.

Abstract: A method for determining the time to collision between a host vehicle and an oncoming target vehicle, and for determining the necessary host vehicle deceleration for bringing the host vehicle to a standstill at the moment of collision. The method furthermore comprises the steps: determining the position (pH) of the host vehicle as a function of time; determining the position (pT) of the target vehicle as a function of time; for the moment of collision, as a first condition, setting the position (pH) of the host vehicle equal to the position (pT) of the target vehicle, and, as a second condition, setting the velocity (vH) of the host vehicle to zero; using the positions and the conditions above to solve for the time to collision and the necessary host vehicle deceleration; and choosing the solution for time to collision that is positive and has the largest value.