The systems and method are configured to maintain a constant towing load on the towing vehicle as well as optimizing {HEAD ~ other performance criteria} such as {TAIL ~ fuel efficiency} 
such as
The systems and method are configured to maintain a constant towing load on the towing vehicle as well as optimizing { HEAD ~ other performance criteria } such as { TAIL ~ fuel efficiency }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL