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Fossil fuel depletion risk forecasting and growing environmental concerns are strong impetus for developing higher efficient transportation system nowadays. Hybridization is considered as one of the most efficient short and mid-term solutions. In particular, series hydraulic hybrid configuration provides a further advantage when it provides more degree of freedom of engine control. However, low energy...
This paper approaches problems of tram DC motors traction system modernization, system widely used in the area of Eastern Europe. First, the state-of-the-art and an overview of trams equiped with DC motors and classical rheostatic control system are presented. Poor economic status of this region only allows upgrading these trams with modern power converters. These improve the burning issues and allow...
Innovation management of automotive control systems is a challenging issue not least because of the need to handle short iterative life cycles and families of these systems. After collecting experience in control engineering from a three year collaboration in the automotive domain, we conclude that innovation management is only weakly aligned with feature and platform development. This situation makes...
Electric vehicle technology opens doors to a wide range of research and improvement possibilities which can be used to develop a High Performance Full Electric Competition Car. However, in our modern-day society, there are numerous prejudices against electric vehicles which lead to their slow introduction in the market. In this context, IDIADA has been commissioned to build Volar-e with the aim to...
Autonomous Underwater Vehicle (AUV) networks are becoming increasingly popular in scientific, commercial, and military applications. AUVs are used in undersea exploration and environmental monitoring for tasks such as detection of oilfields and marine life, distributed tactical surveillance for offshore and seaport defense and mine reconnaissance. AUV networks are also becoming an important interest...
Hypersonic vehicle has high military value in terms of real-time reconnaissance, remote rapid deployment and precision strike, especially the implementation of real-time reconnaissance mission has unique advantages. Efficient thrust, the aircraft must be flying high dynamic pressure conditions, in order to control the resulting aerodynamic heating and aerodynamic drag for the hypersonic vehicle angle...
It is well known that control systems are the core of electronic differential systems (EDSs) in electric vehicles (EVs)/hybrid HEVs (HEVs). However, conventional closed-loop control architectures do not completely match the needed ability to reject noises/disturbances, especially regarding the input acceleration signal incoming from the driver's commands, which makes the EDS (in this case) ineffective...
Vehicle energy-saving is important to relieve source shortage and protect environment. This article mainly discusses the control of parallel hydraulic hybrid heavy vehicle (PHHHV), which uses hydraulic components to recycle the brake energy. Through analyzing the two power sources and two brake systems in the PHHHVs, the control rules have been brought out. By logic threshold value control strategy,...
To simplify the modeling process and to increase accuracy and stability of CVT ratio control system, CVT transmission structure and ratio changing theory were analyzed. The mathematical model every part of control system was built. Engine simulation model and CVT object ratio simulation model based on the engine optimal-economy and the optimal-power work mode were built. CVT-vehicle model according...
Previous work demonstrated that adding a wireless link to a distance control between vehicles has effect on its performance. This paper presents an algorithm that minimizes the effect of the transmission delay and the packet losses of said wireless link. The extrapolation algorithm is implemented by a block added just after the link, so that it is transparent to the control system and it does not...
In late years, deep-sea investigation becomes important for a study about the global warming, study about ocean earthquake and so on. Recently the vehicle has begun to use for scientific applications. These applications require precise maneuvering of the vehicle for detailed investigations. For high performance maneuvering of the vehicle, it is necessary to design a control system based on a mathematical...
In this paper, a new type vehicle with four wheel independent steering (4WIS) and four wheel independent driving (4WID) travelling mechanism is designed. Under careful analysis of the advantages and disadvantages of both the mechanical and electrical features, the design of platform is discussed. Besides, a corresponding control structure is addressed. Under the Co-simulation using ADAMS and MATLAB/Simulink,...
In recent years, adaptive and autonomous exploration of underwater plumes with autonomous underwater vehicles (AUVs) becomes a hot research topic, due to its significant applications. For the researches on AUV underwater plume exploring, design, optimization and validation of the control strategies and autonomous behaviors of the AUVs is the key issue. In order to study various control strategies...
To increase reliability and real time of the unmanned surface vehicle (USV), research on system design and implement of USV was completed. Introduces the hardware architecture of the control system and clarifies the function of all parts. The software architecture is designed based on the VxWorks real-time operating system. The USV control system adopts a three layered hierarchical architecture, includes...
This paper presents an application of adaptive neural network to control of autonomous underwater vehicle. Adaptive neural networks by adaptive interaction are designed for controlling heading, depth and speed of the vehicle. Computer simulations are carried out to verify the control system. Good results are obtained under the influence of measurement noise and current.
The reliability indicator of vehicles equipment has a non-linear relationship with maintenance costs, and neural network can be used in making an correlation analysis about them. Using MTBF of the control system, transmission system and run system as inputs, maintain cost as output, data of the eight vehicles as samples, we set up the neural networks, then make training and adjustment. Using test...
The electric drive system for a car has been analyzed using Matlab/Simulink toolbox. We determined the selected motion parameters of the car. The control system for the electric engines has been worked out. Calculation results of the car parameters have been presented. We compared the computer simulations of the electric engine parameters with the measured values. A good agreement has been achieved.
This paper presents the design of an automatic anti- collision system which composed by embedded FPGA, DSP and ARM. TMS320DM6437 DSP as the core of the system, and Spartan-3 FPGA, S3C2410 ARM9, EP1C3T144C6 FPGA is its best match. First, we designed FPGA + DSP 3 way video surveillance system and DSP + ARM + FPGA automatic warning and control system, then combined them together to complete the whole...
This paper explores a pragmatic establishment of healthcare techniques dedicated to improving the safety and drivability of electric power wheelchairs. The focus of the study is an analysis of the relationship between passenger's posture behavior and comfort sensation in riding mobile wheelchair. We propose a new driving control system, by constructing a passenger's posture model that involves the...
The following topics were dealt with: mobile robots; manipulators; autonomous vehicles; intelligent robots; intelligent systems; telerobotics; path planning; control system
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