Trucks

Truck automation operational concept alternatives

Shladover, Steven E.
2010

This paper defines a comprehensive range of operational concepts for automating the driving of heavy trucks. These concepts are defined in terms of the amount of driving functionality that is transferred from the driver to the automated system and the roadway conditions in which the trucks would operate. With the minimum amount of automation (providing only safety warnings to drivers) it should be feasible and safe to operate in any roadway environment, but with the maximum use of automation operations must be restricted to simplified and protected driving environments to keep the...

Definition and Evaluation of Bus and Truck Automation Operations Concepts: Final Report

Taso, H. S. Jacob
Botha, Jan L.
2003

Traffic congestion will continue to worsen and likely worsen at a faster rate than ever. People throughput and freight throughput have become critical issues for California and the rest of the nation. PATH has funded a research project entitled Definition And Evaluation of Bus And Truck Automation Operations Concepts, proposed by the authors. This report summarizes the major findings of the research project. During the one-year project, we reviewed literature and developed operating concepts for both urban bus automation and inter-city truck automation. We also selected a small number of...

Commercial Vehicle Operations: Government Interfaces and Intelligent Transportation Systems

Hall, Randolph W.
Intihar, Chris
1997

This report documents findings from a series of studies investigating how Intelligent Transportation Systems (ITS) could be used to improve the integration of commercial vehicle operations (CVO) with governmental services and regulations within intermodal transportation management centers. After a summary of prior project research, the report gives a review of ITS/CVO technologies. This is followed by results of interviews and focus groups that reveal that trucking companies are willing to invest and participate in projects that possess four basic characteristics: 1) modest investment, 2)...

Analysis, Design, and Evaluation of AVCS for Heavy-Duty Vehicles with Actuator Delays

Yanakiev, Diana
Eyre, Jennifer
Kanellakopoulos, Ioannis
1998

This report focuses on the design of longitudinal control algorithms for commercial heavy vehicles (CHVs). The algorithms use nonlinear spacing policies, backstepping control design, and aggressive prediction schemes to deal with the presence of significant delays and saturations in the fuel and brake actuators. The algorithms can also deal with delays both in the presence and in the absence of intervehicle communication. A by-product on this research is the development of two software packages, Platoon-Builder and TruckVis, for simulation and animation of CHV platoons. Additionally,...

A First Investigation of Truck Drivers’ On-the-Road Experience Using Cooperative Adaptive Cruise Control

Yang, Shiyan
Shladover, Steven E.
Lu, Xiao-Yun
Spring, John
Nelson, David
Ramezani, Hani
2018

Cooperative Adaptive Cruise Control (CACC) is a driver assist technology that uses vehicle-to-vehicle wireless communication to realize faster braking and acceleration responses in following vehicles and shorter headways compared to Adaptive Cruise Control (ACC). This technology not only enhances road safety, but also offers fuel saving benefits as a result of reduced aerodynamic drag. The amount of fuel savings is dictated by the following distances and the driving speeds. So, the overarching goal of this work is to explore truck drivers’ preferences and behaviors when following in “CACC...

Interim Report: Compliance and Commercial Vehicle Operators – A Systems Evaluation of the Problem and Virtual Solutions

Madanat, Samer
Rodier, Caroline
Allen, Denise
Johnston, Scott
Miller, Mark A.
Allen, Jaime
Benjamin-Chung, Jade
Kazanjy, Michael
Narayan, Atul
Giuliano, Gen
McFerrin, Peter
2008

This report documents a review of the literature for commercial motor vehicle inspection and compliance stations and its relationship with the growth of truck travel over the next 25 years and the lack of concurrent capacity increases in staffing at such stations. Problems result in that more commercial vehicles will need to stop for inspection with longer queues at weigh stations associated with increased congestion, increased wait times, more idling trucks, and increased safety hazards. Alternatively, without stopping at inspection and compliance stations other problems will result such...

Fault Tolerant Lateral Control for Transit Buses and Trucks

Suryanarayanan, Shashikanth
Hsiao, Tesheng
Tomizuka, Masayoshi
2004

This report documents the research results of Task Order 4205 (TO4205), Fault Tolerant Lateral Control for Transient Buses and Trucks performed during 2000-2003. In this task order, we studied the procedures for designing real-time lateral control systems for automated vehicles that are not sensitive to failures of the two key components: a set of magnetometers at the front bumper and another set at the rear bumpers. This problem is important because failures related to either front or rear magnetometers may have immediate effect on the stability of the closed loop control system.

Public and Private Benefits in Intelligent Transportation Systems/Commercial Vehicle Operations: Electronic Clearance and Supply Chain Management

Gillen, David
Haynes, Matt
2002

Technological innovations have recently changed many of the ways the private trucking industry operates. These changes have enabled trucking firms to monitor more closely the distribution of goods and services, improve productivity, and develop higher levels of customer satisfaction. Of these innovations, ITS related applications play an important role in creating benefits for the private sector. ITS technologies are also increasingly offering the potential to bring about change to state and national agencies charged with overseeing goods movement in trucking. Recent research has shown...

A Low-Cost Wireless MeMS System for Measuring Dynamic Pavement Loads

Varaiya, Pravin
2008

Work done under this "Innovative Proposal" may be summarized as follows. A closed-form series solution is provided for the displacement of a pavement loaded by a truck modeled as an Euler beam with elastic foundation under a moving load. A method is developed to estimate the load based on accelerometer measurements. Lastly, it was found that the measurement system that we built was not suited for the problem at hand because the accelerometer bandwidth was too high and the system could not isolate the accelerometer from ambient noise. This led to a new measurement system design. However,...

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

Nowakowski, Christopher
Shladover, Steven E.
Lu, Xiao-Yun
Thompson, Deborah
Kailas, Aravind
2015

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)...