Faced with the need to reduce development time and cost, the hardware-in-the-loop (HIL) simulation increasingly proves to be an efficient tool in the automotive industry. It offers the possibility to investigate new e...
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ISBN:
(纸本)0780345304
Faced with the need to reduce development time and cost, the hardware-in-the-loop (HIL) simulation increasingly proves to be an efficient tool in the automotive industry. It offers the possibility to investigate new engine control systems with fewer expensive engine dynamometer experiments and test drives. In the scope of a research collaboration, Daimler Bent and Darmstadt University of Technology are developing a hardware-in-the loop simulator for the investigation of the electronic engine management of the new Mercedes Bent truck engine series 500 and 900. This paper first describes the necessary models for real-time simulation of the subsystems Diesel engine, turbo charger and vehicle. Then the setup of the simulator test bench is introduced and the performance of the simulator is demonstrated by several experimental results.
With the evolution of autonomous vehicle (AV), especially its ability to cope with harsh conditions, which is attracting intense attention from both academia and industry practitioners. Due to the high risk, high cost...
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ISBN:
(纸本)9781728141497
With the evolution of autonomous vehicle (AV), especially its ability to cope with harsh conditions, which is attracting intense attention from both academia and industry practitioners. Due to the high risk, high cost, and great difficulties of real road testing for AV, the hardware-in-the-loop (HIL) simulation platform is considered as a safe, economical, and effective testing method. In this paper, we developed a novel indoor virtual-reality combined HIL simulation platform for AV testing. This platform consists of a series of subsystems including math models, physical hardware and software components, on which all parts of an AV can be tested separately and jointly. To validate the functionality and performance of the platform, we adopt Udwadia-Kalaba(U-K) approach to build autonomous emergency braking (AEB) control algorithm as a case study due to explicitness and simplicity of U-K approach. Further, a group of comparison experiments on both real road environment and the proposed indoor HIL platform is conducted. The experimental results show that the testing data obtained from the proposed HIL platform have a high similarity to those of the real road tests. Simultaneously, the testing time and repeatability of the former perform better, which confirms its feasibility and effectiveness on the vehicle AEB testing.
This paper presents a hardware in the loopsimulation (HITL) for an altitude hold autopilot applied on a fixed-wing unmanned aerial vehicle (UAV). A complete model of the aircraft was generated using MATLAB and Simuli...
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ISBN:
(纸本)9781624106316
This paper presents a hardware in the loopsimulation (HITL) for an altitude hold autopilot applied on a fixed-wing unmanned aerial vehicle (UAV). A complete model of the aircraft was generated using MATLAB and Simulink to which the Total Energy Control System (TECS) was implemented. The HITL provides an artificial environment which is used to represent the aircraft dynamics under flight conditions resembling the real world and investigates the flight controller real-time commands. A comparison between the results of both HITL simulation and software in the loop (SITL) simulation is demonstrated to validate the flight controller performance before actual flight testing.
This paper describes a hardware-in-the-loop (HiL) simulation platform specifically designed to test state estimators for Li-ion batteries in electric vehicle applications. Two promising estimators, the Mix algorithm c...
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ISBN:
(纸本)9781509008735
This paper describes a hardware-in-the-loop (HiL) simulation platform specifically designed to test state estimators for Li-ion batteries in electric vehicle applications. Two promising estimators, the Mix algorithm combined with the moving window least squares and the dual extended Kalman filter, are implemented in hardware on a field-programmable gate array (FPGA) and evaluated using the developed HiL platform. The simulation results show the effectiveness of using FPGAs for hardware acceleration of battery state estimators and the importance of their assessment under different operating conditions, i.e., driving schedules, which can be simulated by the HiL platform.
A method of taking characteristics of the pump motor drive using a hardware-in-the-loop simulation approach is described. The models with built-in hardware and software components of real equipment were developed. To ...
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ISBN:
(纸本)9781479950225
A method of taking characteristics of the pump motor drive using a hardware-in-the-loop simulation approach is described. The models with built-in hardware and software components of real equipment were developed. To study the drives of centrifugal pumps manufactured by ABB, their own control system was used whereas the pumping load has been replaced with the specially designed environment simulators which description was initially unclear. To clarify the model topology and parameters, a double-motor assembly was constructed and applied as universal pump prototype. Real equipment included into the simulationloop allows to decrease a priori uncertainty and to explore the processes that have nether evident characterization. A library of reference and disturbance signals typical for pumping was prepared and used as the models. Hence, the advantages of mathematical and physical simulations were combined with optimal interaction of both approaches.
This paper presents a new development in the field of design process and testing of motor drives, for hardware-in-the-loop (HIL) applications. It consists of implementing the Finite Element (FE) Method applied to elec...
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ISBN:
(纸本)9781424404964
This paper presents a new development in the field of design process and testing of motor drives, for hardware-in-the-loop (HIL) applications. It consists of implementing the Finite Element (FE) Method applied to electric motors on a real-time simulator;coupled with circuit simulation, this enables accurate real-time simulation of the complete motor drive, including the inverter and the motor. The paper describes the integration of FE-based motor model generated by JMAG (R) software, with the high-end real-time RT-LAB (R) simulator. The complete solution consists of combining accurate FE-based motor model, with inverter model, including important switching parameters, all constructed in the Simulink (R) environment, and simulated on PC-based RT-LAB simulation platform, using ultra-fast processors and FPGA-based inputs/outputs (I/O) boards. By connecting the real-time simulator to an external controller under test, this allows high fidelity HIL simulation of motor drives and enables the design engineers to test the system and the controller with a very accurate, FE-based motor model running in real-time.
The implementation of integrated hardware-in-the-loop (HWIL) simulation and testing system for Millimeter-Wave (MMW) seeker was presented. The system can implement dynamic real-time testing for MMW seeker. The seeker&...
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ISBN:
(纸本)9781424418794
The implementation of integrated hardware-in-the-loop (HWIL) simulation and testing system for Millimeter-Wave (MMW) seeker was presented. The system can implement dynamic real-time testing for MMW seeker. The seeker's ability of detecting, identifying and tracking the target, can be checked and tested in a realistic flight scenario. The system configuration is described, and the implementation of its chief components was proposed which are the MMW scene generator, the high speed data acquisition subsystem, and the central control unit. This system could be applied to the simulation and testing of some types of MMW seeker which are on development.
For ECU (Electronic Control Unit) development of LuK Electronic Clutch Management a hardware-in-the-loop application was generated from an existing off-line simulation environment. The development process, the HIL-str...
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In 2018, the Commonwealth of Virginia passed the Grid Transformation & Security Act;one of its major purposes was to modernize the distribution grid In response, Dominion Energy Virginia implemented a plan to expa...
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ISBN:
(纸本)9798350381849;9798350381832
In 2018, the Commonwealth of Virginia passed the Grid Transformation & Security Act;one of its major purposes was to modernize the distribution grid In response, Dominion Energy Virginia implemented a plan to expand its Locks Campus and install a microgrid, with the core objective of enhancing grid security and system resilience. Once new construction is complete and distributed energy resources (DERs) are added, Dominion Energy will be able to observe the microgrid operations with real-time data. The Locks Microgrid will incorporate primarily inverter-based resources (IBRs), including five solar systems and a battery energy storage system. These IBRs possess distinct attributes that contrast with traditional synchronous generators, which could lead to challenges in executing protection mechanisms. One potential issue is IBRs' limited contribution to fault current, which could result in the misoperation of protective relays. One proposed solution was to put a protection scheme and control strategies in place at the recloser. To achieve this, Dominion constructed a real-time model of the Locks Microgrid using a real-time digital simulator. This model was then subjected to hardware-in-the-loop simulations to validate the protective relay systems' performance. The outcomes of these simulations confirmed the efficacy of the proposed protection and control approaches.
The paper is devoted to a hardware-in-the-loop simulation stage in the whole cycle of tokamak plasma control system design starting from practical needs and challenges and ending up in applications of developed contro...
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ISBN:
(纸本)9781457710636
The paper is devoted to a hardware-in-the-loop simulation stage in the whole cycle of tokamak plasma control system design starting from practical needs and challenges and ending up in applications of developed control systems deployed in real world plants to achieve desirable objectives. Control problems of tokamak plasmas are described. The hardware-in-the-loop test case simulation is implemented into the Test Bed which consists of target PCs for modeling MIMO plant and controller on real-time operating system xPC Target from MathWorks and a workstation ( Host PC) with MATLAB/Simulink development environment. This environment allows to automatically generate and compile plant and controller codes with Real-Time Workshop and to upload compiled programs to the target PCs. The raw Ethernet is used to connect the target PCs to each other. Two plasma shape and current MIMO H-infinity control systems were designed and simulated on the Test Bed specifically for tokamaks T-15MD and ITER on linear plasma models obtained from nonlinear plasma physics DINA code on plasma current flat-top phase. The real time hardware-in-the-loop simulation results are presented for both tokamaks when minor disruptions occur.
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