A method to speed up and improve the whole development cycle of Electronic Control Units (ECU) is presented. The proposed procedure can be divided into three steps: development and validation of the controlled system ...
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The development process for electronic control systems in automobiles is due to the increasing complexity and heterogenuity of such systems intensive of time, effort and skill. With the availability of integrated CAE ...
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The development process for electronic control systems in automobiles is due to the increasing complexity and heterogenuity of such systems intensive of time, effort and skill. With the availability of integrated CAE tools for control systems design, simulation and implementation the automotive industry is moving towards model based design and analysis techniques to speed up development and provide more robust control solutions. This paper deals with the development of in-vehicle electronic control systems and discusses the application of hardware-in-the-loop (HiL) realtime simulation tools for the development process. A Diesel common rail system with piezoactuator-driven injection valves is used as example.
A greater awareness of and increased interest in the use of modeling and simulation (M&S) has been demonstrated at many levels within the Department of Defense (DoD) and all the Armed Services agencies in recent y...
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The paper analyses the possibility to replace the hydraulic and mechanical parts of a hydraulic position servo with a real-time simulation model. The aim is to test the controller hardware against the simulation model...
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The paper analyses the possibility to replace the hydraulic and mechanical parts of a hydraulic position servo with a real-time simulation model. The aim is to test the controller hardware against the simulation model that includes the dynamics of the servo system as well as the feedback sensors and amplifier card. The requirements caused by this hardware-in-the-loop (HIL) approach are analyzed. A special attention is paid to the correct modeling of incremental encoders that are widely used as a feedback sensor. Experimental results show that there is no remarkable difference between the responses of the real system and HIL model and so the HIL model can replace the real system. (C) 2000 Elsevier Science B.V. All rights reserved.
The synergetic integration of mechanical processes, microelectronics and information processing opens new possibilities to the design of processes as well as for its automatic control. The solution of tasks within mec...
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The synergetic integration of mechanical processes, microelectronics and information processing opens new possibilities to the design of processes as well as for its automatic control. The solution of tasks within mechatronic systems is performed on the process side and the digital-electronic side. As the interrelations during the design play an important role, simultaneous engineering has to take place from the very beginning. Mechatronic systems are developed for mechanical elements, machines, vehicles and precision mechanic devices. The integration of mechatronic systems can be performed by the components (hardware integration) and by information processing (software integration). The information processing consists of low-level and high-level feedback control, supervision and diagnosis and general process management. Special signal processing, model-based and adaptive methods are applied. With the aid of a knowledge base and inference mechanisms, mechatronic systems with increasing intelligence will be developed. The main goals are to increase systems performance, reliability and economy, and decrease production costs.
The DSTO hardware in the loop (HIL) facility, currently has a limited Radio Frequency Scene Generator (RFSG) that restricts the scope of HIL simulations. Furthermore it is a multi-use facility and hence has restricted...
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The demands of the automotive market are decreasing the time-to-market required from the initial concept of new control systems to their implementation. The goal of automotive companies is to constantly reduce the dev...
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This paper describes technology for high-performance simulation. Challenging applications such as real-time hardware-in-the-loop and mega-simulation are made possible using parallel architectures based on COTS PC comp...
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The Advanced simulation Laboratory (ASL) at Lockheed Martin Electronics and Missiles In Orlando, Florida, has developed and integrated a suite of-visualization tools designed to support and enhance hardware-in-the-loo...
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ISBN:
(纸本)0819424994
The Advanced simulation Laboratory (ASL) at Lockheed Martin Electronics and Missiles In Orlando, Florida, has developed and integrated a suite of-visualization tools designed to support and enhance hardware-in-the-loop simulation. State-of-the-art computer image generators with multiple channels and viewpoints using detailed, fully articulated models provide real-time views of the system under test. Workstations serve as symbol generators overlaying flight symbology and textual data on the virtual scene. A digital moving map displays mission progress, critical points and target symbology. A real-time data monitor program allows engineers to organize data logically for display during the run. National Instrument's LabView provides virtual gauges, meters, status indicators and even stripcharts. The ASL visualization tools are fully integrated into the lab video system. As a result, all visualization channels can be recorded and routed to any display in the lab including the multi-screen, multimedia demonstration and briefing room. Video routing and host control for the image generators, symbol generators and digital map are under control of a real-time, scripted visualization control program. These visualization techniques have been used successfully in two HWIL simulation projects and are considered an integral part of any future projects.
hardware-in-the-loop simulation allows ECUs to be tested in a simulated environment in closed loop. Engines, vehicles, and other components the ECU normally controls are replaced by high-fidelity models executed on a ...
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