نتایج جستجو برای: automatic train control

تعداد نتایج: 1488171  

Journal: :European Journal of Operational Research 2021

In the last decade, pseudospectral methods have become popular for solving optimal control problems. Pseudospectral do not need prior knowledge about structure and are thus very flexible problems with complex path constraints, which common in train control, or trajectory optimization. Practical nonsmooth discontinuities dynamic equations constraints corresponding to gradients speed limits varyi...

2014
Dewang Chen Xiangyu Zeng Guiwen Jia

Traditional control algorithms in Automatic Train Operation (ATO) system have some drawbacks, such as high energy consumption and low riding comfort. Combined with data mining methods and driving experience, two Intelligent Train Operation (ITO) models for the subway train control are proposed. Firstly the training data set was sorted out and sieved out from the real train operation data set by...

2012
M. Miyoshi T. Takeba M. Miyatake

Although rail transportation is conventionally considered to be environmentallyfriendly, currently research is being carried out globally to find ways to improve energy-saving in rail transportation. Development of an energy management system for railways and new transport systems including the BRT (Bus Rapid Transit) system has begun. The railway energy management system manages and controls t...

2012
X. Rao M. Montigel U. Weidmann

Nowadays, railways are confronted with numerous pressing problems, including capacity optimization, energy conservation, cost reduction and improving customer satisfaction. While the traditional railway is a very safe means of transportation, it still cannot meet all these requirements. Hence there are high interests in two available systems to overcome these challenges: Traffic Management Syst...

Control of wellbore pressure during drilling operations has always been important in the oil industry as this can prevent the possibility of well blowout. The present research employs a combination of automatic process control and statistical process control for the first time for the identification, monitoring, and control of both random and special causes in drilling operations. To this end, ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد مرودشت - دانشکده علوم تربیتی و روانشناسی 1393

psychometric properties of automatic thoughts questionnaire and investigation of the relationship between automatic thoughts with cognitive emotion regulation and self regulated learning

Journal: :Engineering Letters 2008
Long-Chang Hsieh Tzu-Hsia Chen

Recently, bicycles are used as exercising machines and traffic vehicles. Planetary gear trains can be used as the transmission systems for bicycles. The purpose of this work is to propose a design methodology for the kinematic design of automatic gear transmissions with planetary gear trains for bicycles. First, applying the check list method (combining and extending methods), the design concep...

2013
Bing Bu Jingwei Yang Shuhuan Wen Li Zhu

In Communication‐Based Train Control (CBTC) systems, random transmission delays and packet drops are inevitable in the wireless networks, which could result in unnecessary traction, brakes or even emergency brakes of trains, losses of line capacity and passenger dissatisfaction. This paper applies predictive function control technology with a mixed  H H / 2 contr...

2004
Johan Wikström

Today’s train traffic control systems are most often designed with a focus on controlling the technology rather than on to support the train traffic controller in achieving optimal traffic solutions. Train dispatchers often have to interact with many separate information systems in order to understand the traffic situation, to make decisions and to perform control tasks. An integrated and compl...

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