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Automated Truck Control
California Partners for Advanced Transportation TecHnology (PATH)  has been instrumental in the development of major transportation innovations such as vehicle automation and IntelliDrive, and 
has produced alumni—both students and faculty—who are transportation leaders 
and educators around the state, the U.S., and the world.

PATH researchers completed testing of an automated platoon of tractor trailer trucks on a remote section of highway in Nevada. 

These tests were designed to show that an automated vehicle following in a platoon could be done using automotive RADAR 
and dedicated short range communications (DSRC) for vehicle-to-vehicle coordination at its standard update interval, and to measure the potential fuel consumption savings associated with aerodynamic drafting.
Automated Truck Platoon

LED display, indicating proper operation of communication and control systems
The truck test scenario consisted of starting up from a stop, accelerating to a cruise speed of 87 km/h, and then decelerating to a stop at the end of the test section.

The cruise speed level was chosen to avoid complications from inconsistent transmission gear shift speeds among the test trucks when they exceeded this speed, a temporary practical constraint rather than an inherent limitation of the general technical approach.  The testing began at gaps of 10 m between trucks and continued at that gap throughout extensive debugging.

Only after the performance was consistent and reliable at the 10 m gap did the research team attempt shorter gaps. By the end of the three-week test period, there was data for vehicle following at gaps of 8 m and 6 m as well, so that a comparison could be made for the fuel consumption savings at these different gaps.

Additional highway-speed testing of the three-truck platoon is planned, providing opportunities for testing some shorter gaps, as well as operations including speed and grade changes and platoon join and split maneuvers.
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