Vehicle control system with traffic driving control

1. A control system for a vehicle, said control system comprising:

a camera disposed at a vehicle equipped with said control system, said camera having a field of view exterior of the equipped vehicle;

an image processor operable to process image data captured by said camera;

wherein said image processor is operable to process image data to detect another vehicle in the field of view of said camera;

wherein, responsive at least in part to image processing of image data by said image processor, said control system determines traffic lanes on a road along which the equipped vehicle is traveling;

wherein, responsive at least in part to image processing of image data by said image processor, said control system determines the traffic lane being traveled by the equipped vehicle;

wherein, at least in part via image processing of image data by said image processor, said control system determines a leading vehicle ahead of the equipped vehicle that is traveling in the traffic lane being traveled by the equipped vehicle;

wherein said control system is operable to determine a traffic condition where two traffic lanes change to a different number of traffic lanes;

wherein the traffic lane being traveled by the equipped vehicle is one of the two traffic lanes that change to the different number of traffic lanes;

wherein, responsive to determination of the traffic condition and responsive to detection of the leading vehicle moving from the traffic lane being traveled by the equipped vehicle into another traffic lane, said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the other traffic lane; and

wherein the other traffic lane that the equipped vehicle moves into is a traffic lane of the road after the two traffic lanes change to the different number of traffic lanes.

2. The control system of claim 1 , wherein, responsive to detection of the leading vehicle moving from the traffic lane being traveled by the equipped vehicle into the other traffic lane, said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the other traffic lane irrespective of a lane departure warning system of the equipped vehicle.

3. The control system of claim 1 , wherein, responsive to detection of the leading vehicle moving from the traffic lane being traveled by the equipped vehicle into the other traffic lane, said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the other traffic lane irrespective of lane markers on the road along which the equipped vehicle is traveling.

4. The control system of claim 3 , wherein said control system controls the steering of the equipped vehicle responsive at least in part to a navigation system so that the equipped vehicle follows a selected route when following the leading vehicle outside of lane markers on the road along which the equipped vehicle is traveling.

5. The control system of claim 1 , wherein, before said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the other traffic lane, said control system generates an alert to alert an occupant of the equipped vehicle that the control system has determined the traffic condition.

6. The control system of claim 1 , wherein, responsive at least in part to image processing of image data by said image processor, said control system determines lane markings on the road along which the equipped vehicle is traveling, the determined lane markings being indicative of at least the traffic lane being traveled by the equipped vehicle.

7. The control system of claim 6 , wherein at least one of the different number of traffic lanes is not indicated by lane markings.

8. The control system of claim 6 , wherein the other traffic lane is not indicated by lane markings.

9. The control system of claim 6 , wherein the traffic lanes of the road after the two traffic lanes change to the different number of traffic lanes are not indicated by lane markings.

10. The control system of claim 1 , wherein said camera is disposed at the equipped vehicle so as to have at least a forward and sideward field of view.

11. A control system for a vehicle, said control system comprising:

a camera disposed at a vehicle equipped with said control system, said camera having a field of view exterior of the equipped vehicle;

an image processor operable to process image data captured by said camera;

wherein said image processor is operable to process image data to detect another vehicle in the field of view of said camera;

wherein, responsive at least in part to image processing of image data by said image processor, said control system determines traffic lanes on a road along which the equipped vehicle is traveling;

wherein, responsive at least in part to image processing of image data by said image processor, said control system determines the traffic lane being traveled by the equipped vehicle;

wherein, at least in part via image processing of image data by said image processor, said control system determines a leading vehicle ahead of the equipped vehicle that is traveling in the traffic lane being traveled by the equipped vehicle;

wherein said control system is operable to determine a traffic condition where two traffic lanes change to more than two traffic lanes;

wherein the traffic lane being traveled by the equipped vehicle is one of the two traffic lanes that change to more than two traffic lanes;

wherein, responsive to determination of the traffic condition and responsive to detection of the leading vehicle moving from the traffic lane being traveled by the equipped vehicle into another traffic lane, said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the other traffic lane irrespective of a lane departure warning system of the equipped vehicle; and

wherein the other traffic lane that the equipped vehicle moves into is a traffic lane of the road after the two traffic lanes change to more than two traffic lanes.

12. The control system of claim 11 , wherein, responsive to detection of the leading vehicle moving from the traffic lane being traveled by the equipped vehicle into the other traffic lane, said control system controls the steering system of the equipped vehicle irrespective of lane markers on the road along which the equipped vehicle is traveling.

13. The control system of claim 11 , wherein, before said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the other traffic lane, said control system generates an alert to alert an occupant of the equipped vehicle that the control system has determined the traffic condition.

14. The control system of claim 11 , wherein, responsive at least in part to image processing of image data by said image processor, said control system determines lane markings on the road along which the equipped vehicle is traveling, the determined lane markings being indicative of at least the traffic lane being traveled by the equipped vehicle.

15. A control system for a vehicle, said control system comprising:

a camera disposed at a vehicle equipped with said control system, said camera having a field of view exterior of the equipped vehicle;

an image processor operable to process image data captured by said camera;

wherein said image processor is operable to process image data to detect another vehicle in the field of view of said camera;

wherein, responsive at least in part to image processing of image data by said image processor, said control system determines lane markings on a road along which the equipped vehicle is traveling, the determined lane markings being indicative of at least one marked traffic lane that includes a traveled traffic lane that is being traveled by the equipped vehicle;

wherein, at least in part via image processing of image data by said image processor, said control system determines a leading vehicle ahead of the equipped vehicle and traveling in the traveled traffic lane being traveled by the equipped vehicle;

wherein said control system is operable to determine a traffic condition where traffic traveling along the at least one marked traffic lane shifts to travel along at least one unmarked traffic lane that is different from the at least one marked traffic lane indicated by the determined lane markings; and

wherein, with the equipped vehicle traveling along the traveled traffic lane and responsive to determination of the traffic condition and detection of the leading vehicle moving from the traveled traffic lane being traveled by the equipped vehicle into an unmarked traffic lane not indicated by the determined lane markings, said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the unmarked traffic lane.

16. The control system of claim 15 , wherein, responsive to detection of the leading vehicle moving from the traveled traffic lane being traveled by the equipped vehicle into the unmarked traffic lane, said control system controls the steering system of the equipped vehicle irrespective of a lane departure warning system of the equipped vehicle.

17. The control system of claim 15 , wherein said control system controls the steering of the equipped vehicle responsive at least in part to a navigation system so that the equipped vehicle follows a selected route when following the leading vehicle along the unmarked traffic lane of the road along which the equipped vehicle is traveling.

18. The control system of claim 15 , wherein, before said control system controls the steering system of the equipped vehicle to follow the leading vehicle into the unmarked traffic lane, said control system generates an alert to alert an occupant of the equipped vehicle that the control system has determined the traffic condition.

19. The control system of claim 15 , wherein, at the determined traffic condition, the quantity of unmarked traffic lanes is less than the quantity of marked traffic lanes.

20. The control system of claim 15 , wherein, at the determined traffic condition, the quantity of unmarked traffic lanes is greater than the quantity of marked traffic lanes.