Cooperative Adaptive Cruise Control (CACC) for Truck Platooning: Operational Concept Alternatives

Cooperative Adaptive Cruise Control (CACC) provides an intermediate step toward a longer-term vision of trucks operating in closely coupled automated platoons. There are important distinctions between CACC and automated truck platooning. First, with CACC, only truck speed control will be automated, using vehicle to vehicle (V2V) communication to supplement forward sensors. The drivers will still be responsible for actively steering the vehicle, lane keeping, and monitoring roadway and traffic conditions. Second, while truck platooning systems have relied on a Constant Distance Gap (CDG) control strategy, CACC has relied on a Constant-Time Gap (CTG) control strategy, where the distance between vehicles is proportional to the speed. For these reasons, a series of trucks using CACC is referred to as a string, rather than a platoon. This report mainly focuses on describing the various CACC operational concept alternatives at the level of individual vehicles, local groups of vehicles and their drivers, and which alternatives should be employed in this research project. These operational concepts can be broken into four categories: string formation, steady-state cruising, string split maneuvers, and faults or abnormal operating conditions.

• Record URL:
  http://escholarship.org/uc/item/7jf9n5wm
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/920485096
• Corporate Authors:

  University of California, Berkeley

  California PATH Program, Institute of Transportation Studies
  Richmond Field Station, 1357 South 46th Street
  Richmond, CA  United States  94804-4648

  Volvo Trucks North Amercia

  7900 National Service Road
  Greensboro, NC  United States 

  California Department of Transportation

  Division of Research, Innovation and System Information
  1727 30th Street, MS 83
  Sacramento, CA  United States  95816

  Federal Highway Administration

  Exploratory Advanced Research Program
  6300 Georgetown Pike
  McLean, VA  United States  22101-2296
• Authors:
  • Nowakowski, Christopher
  • Shladover, Steven E
  • Lu, Xiao-Yun
  • Thompson, Deborah
  • Kailas, Aravind
• Publication Date: 2015-3

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: 37p
• Serial:
  • PATH Research Report
  • Publisher: University of California, Berkeley
  • ISSN: 1055-1425

Subject/Index Terms

• TRT Terms: Autonomous intelligent cruise control; Dedicated short range communications; Speed control; Traffic platooning; Trucks; Vehicle to vehicle communications
• Subject Areas: Data and Information Technology; Freight Transportation; Operations and Traffic Management; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01577574
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Report/Paper Numbers: UCB-ITS-PRR-2015-05
• Contract Numbers: DTFH61-13-H-00012
• Files: CALTRANS, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Sep 30 2015 9:08AM