During full vehicle simulation I got the message "NearestPoint". even if i can finish my simulation. Is there any possible solution to cover out it? or what the most posibility casused the case.
There is an environment variable MSC_SD_S_ASCENDING which may help in this case.
This is set to traverse the path in the direction of ascending s (postive value), descending s (negative value) or whichever direction most closely matches initial vehicle yaw (0), default=0.
The messages you are seeing "NearestPoint found at ..." indicate that the path point order may not be being correctly interpreted. Do you see the same messages with MSC_SD_S_ASCENDING set to 1?
First things first, check the very 1st frame of the animation. Enable the driver target path and vehicle path check boxes.
Now see where the white line is starting from on the vehicle. If it is somewhere near the front of the vehicle, it means that the location of the "gyro_point" marker is not at the correct place. The gyro_point marker is a marker made by the SDI testrig using the "wheel_center_rear" location communicators in the wheels. If the rear wheels are not in fact at the rear portion of the vehicle and are somewhere in the front, then the gyro_marker will be created at the front and Driving Machine will use this as the reference for tracing the path. Hence even if the model is assembled correctly without any loose ends, the reference marker that Driving Machine uses for trajectory planning is at the wrong place, and hence you will get this type of error in the simulation (of vehicle not tracing the correct path) .
Hence check the templates of both suspension and wheels, make sure that the rear axle is in fact at the rear side of the vehicle (hope you are getting what I am trying to say here, because Adams will simulate even if the rear axle is placed at the front, but the SDI testrig will not work correctly).
Update your assembly accordingly and then give another run. Hopefully the result will be better.