Adopting test bench to do research on HEV is efficient at low costs, but in traditional test bench, the real engine is used to do lots of experiments, which produces a lot of tail gas, and the use of an engine is limi...
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ISBN:
(纸本)9781479942398
Adopting test bench to do research on HEV is efficient at low costs, but in traditional test bench, the real engine is used to do lots of experiments, which produces a lot of tail gas, and the use of an engine is limited while safety is not high. This paper designs an engine emulation system based on the Electric Variable Transmission (EVT) simulation platform for the HEV power train. The high controllability motor is used instead of the real engine to provide power according to characteristics of the engine. An engine simulation model is built in Simulink, including engine dynamic torque model, engine fuel & efficiency model, engine control system model and input control model. To verify the designed system, engine emulation experiments are performed finally, which show that this engine emulation system can emulate the engine, including dynamical torque characteristic and fuel & efficiency. Therefore, this paper provides a new method to the research of test bench of vehicle.
During the development phase of a complex system like a Hybrid Electric Vehicle, different steps are done to develop the control and the energy management. Nowadays, only two steps are generally done: simulation and e...
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ISBN:
(纸本)9781467309547;9781467309530
During the development phase of a complex system like a Hybrid Electric Vehicle, different steps are done to develop the control and the energy management. Nowadays, only two steps are generally done: simulation and experimentation on the prototype vehicle. For complex system, a hardware-In-the-loop (HIL) simulation phase can be inserted between these two steps. In this paper, a HIL simulation of the Peugeot 3 infinity 8 HYbrid4 vehicle is proposed. This vehicle has a double parallel architecture that makes the emulation complex. In order to structure this approach EMR (Energetic Macroscopic Representation) is used.
In this paper we present a recently developed speed advisory system for ITS applications. A real vehicle embedded in a large scale SUMO simulation is used to demonstrate the efficacy of such a system.
ISBN:
(纸本)9781479924912
In this paper we present a recently developed speed advisory system for ITS applications. A real vehicle embedded in a large scale SUMO simulation is used to demonstrate the efficacy of such a system.
hardware in the loop (HIL) simulation, especially power HIL (PHIL) simulation, is a promising tool for motor drive design and prototyping. It inherits both the flexibility of simulation and the authenticity of hardwar...
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ISBN:
(纸本)9781424416653
hardware in the loop (HIL) simulation, especially power HIL (PHIL) simulation, is a promising tool for motor drive design and prototyping. It inherits both the flexibility of simulation and the authenticity of hardware itself, which therefore allow an actual motor drive design to be thoroughly scrutinized under almost any conceivable condition. In this paper, a unique 5 MW PHIL simulation facility which is in its last stage of commissioning in the Center for Advanced Power Systems (CAPS) is introduced. An illustrative PHIL simulation example based on a similar but downscaled 50 kW test bed is performed. Interesting results very well demonstrates how a PHIL simulation on a motor drive system can expose the hidden problems that are difficult to be identified by other testing methods.
We present in the paper the design of a hardware-in-the-loop simulation framework and its actual implementation on our custom constructed unmanned-aerial-vehicle (UAV) helicopter systems. Real-time hardware-in-the-loo...
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ISBN:
(纸本)9781424425020
We present in the paper the design of a hardware-in-the-loop simulation framework and its actual implementation on our custom constructed unmanned-aerial-vehicle (UAV) helicopter systems. Real-time hardware-in-the-loop simulation is one of the most effective methods for the verification of the overall control performance and safety of the UAVs before conducting actual flight tests. In our proposed framework, four modules, which include onboard hardware, flight control, ground station and software, are integrated together to realize the hardware-in-the-loop simulation. This design is successfully utilized for simulating several flight tests including basic flight motions, full-envelope flight and multiple UAV formation flight Results obtained show that the constructed hardware-in-the-loop simulation system is highly effective and useful.
In order to build the aero piston engine model which is real-time and accurate enough to operating conditions of the real engine for hardware in the loopsimulation, the mean value model is studied. Firstly, the air-i...
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In order to build the aero piston engine model which is real-time and accurate enough to operating conditions of the real engine for hardware in the loopsimulation, the mean value model is studied. Firstly, the air-inlet model, the fuel model and the power-output model are established separately. Then, these sub models are combined and verified in MATLAB/SIMULINK. The results show that the model could reflect the steady-state and dynamic performance of aero engine, the errors between the simulation results and the bench test data are within the acceptable range. The model could be applied to verify the logic performance and control strategy of controller in the hardware-in-the-loop (HIL) simulation.
Ground testing for the flight software of the Alpha Magnetic Spectrometer (AMS) requires a virtual environment which processes commands from real controllers and provides normal or abnormal signals as needed. We intro...
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ISBN:
(纸本)9781467398626
Ground testing for the flight software of the Alpha Magnetic Spectrometer (AMS) requires a virtual environment which processes commands from real controllers and provides normal or abnormal signals as needed. We introduced the hardware-in-the-loop (HIL) concept but implemented the simulation in an innovative way that skips mathematical modeling. A simulation database derived from the real-time flight data provides a virtual environment, and a dynamic configuration mechanism makes the virtual world respond to the real world. This efficient method has been successfully applied in the ground testing system for AMS and the paper presents the methodology and its applications.
Study of electric vehicles uses hardware-In-theloop (HIL) simulation to improve its project. This work develops a system of mechanical HIL simulation, in order to simulate the behaviour of an electric vehicle. An indu...
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ISBN:
(纸本)9781509051274
Study of electric vehicles uses hardware-In-theloop (HIL) simulation to improve its project. This work develops a system of mechanical HIL simulation, in order to simulate the behaviour of an electric vehicle. An induction motor with torque control is used to emulate vehicular dynamics, which is mechanically coupled to another induction motor acting as traction motor. The inclusion of vehicle inertia in HIL setup without a flywheel, for the sake of avoiding mechanical stress and lost of generality, is a challenge. Thus, this work applies a genetic algorithm to optimise a second order differentiator used to calculate system acceleration from motor measured system speed. This system allows to verify the performance of electric vehicles with different control strategies in the traction motor, optimizing the project. Results in Matlab/Simulink, compared to vehicle forward reference model, showed that HIL simulation was able to reproduce the electric vehicle dynamic performance.
This paper presents the implementation of a hardware-in-the-loop simulation (HIL) workbench for hybrid AC/DC micro grid. The hybrid AC/DC micro grid integrates both distributed sources and loads in AC/DC systems to re...
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ISBN:
(纸本)9781538628904
This paper presents the implementation of a hardware-in-the-loop simulation (HIL) workbench for hybrid AC/DC micro grid. The hybrid AC/DC micro grid integrates both distributed sources and loads in AC/DC systems to respective links directly. For DC system, photovoltaic arrays with boost converter (PVBC), battery with bi-directional DC/DC converter and DC loads are covered. Diesel generator (DGs) and conventional AC loads are included in AC grid. Between AC and DC girds, a four-quadrant operating three phase converter is applied which can act as either an inverter or a rectifier to maintain power balance between two systems. The power units of this hybrid micro grid are simulated with Opal-RT real-time simulator while the control units are implemented on TI TMS320F28335 DSPs. This hardware-in-the-loop simulation workbench offers a good platform for system level control algorithm design and verification in micro grid. And it serves as a basis for future power-hardware-in-the-loop simulation (PHIL) with power stage involved.
This paper introduces a vision-based dynamic positioning (DP) control system and develops a hardware-in-the-loop (HIL) platform to validate the performance of the controller applied to a work-class remotely operated v...
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ISBN:
(纸本)9798350350494;9798350350500
This paper introduces a vision-based dynamic positioning (DP) control system and develops a hardware-in-the-loop (HIL) platform to validate the performance of the controller applied to a work-class remotely operated vehicle (ROV). The proposed platform consists of three main parts: hardware, image processing part and controller. The hardware included a calibrated camera that was connected to a dedicated computer via USB 2.0. In the image processing part after pre-processing a circular Hough transform was used to detect and determine the position of the target in the image plane. Furthermore, this paper proposed a feedforward proportional-integral-derivative (PID) controller. To evaluate the performance of the proposed controller, two scenarios were implemented. In the first scenario, the target was considered stationary and a disturbance was applied to the ROV in the simulation environment. In the second scenario, the target object has moved along a rectangular path, and the objective was to stabilize the ROV at the desired points. In both scenarios, the reference signal was acquired by a calibrated camera from the target and sent to the controller. The results showed the desirable performance of the proposed controller.
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