Cruise control technique at zero speed using Matlab
TL;DR: The main aim of the project is to design model based approach for adaptive Cruise Control system which works efficiently under the STOP & Go scenarios along with a basic vehicle model.
Abstract: Adaptive cruise control (ACC) with Stop & Go scenarios is presently one of the most important research topics in the field of intelligent transportation systems. The main feature of this controller is that there is an adaptation to a user-present speed and, if necessary, speed reductions to keep a safe distance from the vehicle ahead in the same lane on the road, whatever the speed. The extreme case is the stop and go operation in which the lead car stops and the vehicle at the rear must also do so. The main concern of the system is about the inter-distance control in highways where the vehicle velocity mainly remains constant & it also deals with the vehicle circulating in towns with frequent stops & acceleration. In both situations, goals of safety and comfort are to be achieved. The main aim of the project is to design model based approach for adaptive Cruise Control system which works efficiently under the STOP & Go scenarios along with a basic vehicle model. The normal ACC doesn't work under the speed below 30 to 50 kmph thus causing driver inconvenience to drive. To overcome this ACC with Stop & Go is designed to work even at zero speed.
••27 Mar 2015
TL;DR: A comprehensive preliminary overview of state-of-art research on this issue is presented in several parts: methods for emission estimation, traffic signal control, cruise control, and eco-driving assist systems.
Abstract: After safe driving, eco-driving has become an economic and green driving idea, which is adapted to the modern engine technology and typically consists of changing a person's driving behavior based on general advice to drivers, such as accelerating slowly, driving smoothly, etc. The concept of eco-driving can help save energy and reduce pollution emissions in an efficient way. In this article, a comprehensive preliminary overview of state-of-art research on this issue is presented in several parts: methods for emission estimation, traffic signal control, cruise control, and eco-driving assist systems. Besides, the challenges and opportunities associated with eco-driving are discussed as well.
Cites methods from "Cruise control technique at zero sp..."
...To solve this problem, the ACC with Stop \& Go is designed in  to work even at zero speed....
TL;DR: This paper explains the initiatives for automation in different levels of transportation system with a specific emphasis on the vehicle-level automation, and the impact of automation/warning systems on each of the above-mentioned factors.
Abstract: This paper looks into recent developments and research trends in collision avoidance/warning systems and automation of vehicle longitudinal/lateral control tasks. It is an attempt to provide a bigger picture of the very diverse, detailed and highly multidisciplinary research in this area. Based on diversely selected research, this paper explains the initiatives for automation in different levels of transportation system with a specific emphasis on the vehicle-level automation. Human factor studies and legal issues are analyzed as well as control algorithms. Drivers' comfort and well being, increased safety, and increased highway capacity are among the most important initiatives counted for automation. However, sometimes these are contradictory requirements. Relying on an analytical survey of the published research, we will try to provide a more clear understanding of the impact of automation/warning systems on each of the above-mentioned factors. The discussion of sensory issues requires a dedicated paper due to its broad range and is not addressed in this paper.
TL;DR: A novel reference model-based control approach for automotive longitudinal control is proposed that is nonlinear and provides dynamic solutions consistent with safety constraints and comfort specifications.
Abstract: In this paper, we propose a novel reference model-based control approach for automotive longitudinal control. The reference model is nonlinear and provides dynamic solutions consistent with safety constraints and comfort specifications. The model is based on physical laws of compliant contact and has the particularity that its solutions can be explicitly described by integral curves. This allows to characterize the set of initial condition for which the constraints can be met. This model is combined with a simple feedback loop used to compensate unmodeled dynamics and external disturbances. Model simulations together with experimental results are also presented
••22 Aug 1999
TL;DR: In this article, an adaptive cruise control (ACC) system that is capable of car following in low speed situations, e.g. in suburban areas, as well as in high speed situations is presented.
Abstract: In the field of vehicle control, conventional cruise control systems have been available on the market for many years. During the last years, modern cars include more and more electronic systems. These systems are often governed by a computer or a network of computers programmed with powerful software. One of those new services is adaptive cruise control (ACC) (or autonomous intelligent cruise control, AICC), which extends the conventional cruise control system to include automated car following when the preceding car is driving at a lower speed than the desired set-speed. The focus of ACC has mainly been directed towards high-speed highway application, but to improve the comfort to the driver also low-speed situations must be considered. The paper presents an ACC system that is capable of car following in low-speed situations, e.g. in suburban areas, as well as in high-speed situations. The system is implemented in a test car and the result is evaluated.
••09 Jun 2003
TL;DR: In this article, the influence of adaptive cruise control (ACC) on highway traffic flow characteristics, with highway merging as an example, is comparatively assessed, and the impact of market penetration of ACC/CACC vehicles and controller aggression is evaluated.
Abstract: We comparatively assess the influence of adaptive cruise control (ACC) and cooperative adaptive cruise control (CACC) systems on highway traffic flow characteristics, with highway merging as an example. The primary goal is to study the design and implementation of vehicle-vehicle/roadside-vehicle communication system, which enhances an ACC system to a CACC one. In addition, the impact of market penetration of ACC/CACC vehicles and controller aggression are also evaluated. Two simulation works are presented. The microscopic study simulates a single ACC/CACC vehicle in cut-in scenario using MATLAB/Simulink. Simulation shows that CACC system saves control effort over ACC system. In the macroscopic work we simulate ACC/CACC controlled highway merging with SHIFT language. The results show beneficial effects of communication in both efficiency (average velocity)and cost (braking effort). The higher the market penetration of controlled vehicles the better the system performs. The aggressiveness of controller has mixed influence, which provides a tradeoff between efficiency and safety.
••14 Jun 2006
TL;DR: This paper study a fairly restrictive scenario "stop and go" in city driving in which slowing down and stopping will be accomplished by the automated system (adaptive cruise control) and the starting and acceleration will be controlled by the human driver.
Abstract: Most studies so far on automated driving and semi-automated driving have been for highways. In this paper, we study a fairly restrictive scenario "stop and go" in city driving. We assume that slowing down and stopping will be accomplished by the automated system (adaptive cruise control). The starting and acceleration of the car will be controlled by the human driver. A simple human driver model is used to represent the reactions of the driver. The traffic flow consists of automated and manual controlled vehicles. A traffic simulator is developed to simulate the city driving scenario and various traffic flows. Both a totally isolated car (without cooperation) and then the possibility of cooperation through wireless with cars ahead are considered.
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