Papers by Keyword: Hardware-in-the-Loop Simulation (HILS)

Abstract: In this paper, we propose a hardware-in-the-loop simulation (HILS) for functional safety compliant electric power steering (EPS) system. The proliferation of electric and electronic systems in vehicles has brought the new automotive standard ISO 26262 for the safety of functions. The proposed EPS system should be Automotive Safety Integrity Level (ASIL) D compliant, which is the highest ASIL level. Therefore, EPS system complies with functional safety and HILS is configured to verify performance of functional safety compliant EPS system.

Abstract: Algorithms for motor control unit in electric vehicles are being actively developed with consideration given to safety and reliability these days. Faults during driving are a critical problem that is directly linked to the safety of drivers, and studies on fault detection of control units in various situations are needed. This study investigated the faults of control units in a signal level interface with a dynamic model of drive motor and the real-time interconnection of motor control unit and HILS (hardware-in-the-loop simulation). It was found through real-time simulation that simulating the fault conditions with the sensors of motor control unit could reveal different characteristics of motor control unit. Furthermore, vehicle driving simulations with electric motor control were performed. The results of this study are expected to help the development of electric motor simulations and the evaluation of MCU and control algorithms.

Abstract: Abstract. At present, many experts are dedicated to applying new control theory in driving system of hybrid electric motorcycles, but the verification of new control theory in real hybrid electric motorcycles faces many difficulties. Therefore, a hardware-in-the-loop simulation platform of hybrid electric motorcycle’s driving system was designed. At first, mathematic model and simulation model of driving motor were designed. Thereafter, the hardware-in-the-loop simulation platform was designed by taking dSPACE as the carrier of simulation model. In view of multiple values and high nonlinearity of driving system in hybrid electric motorcycles, Bang-Bang Fuzzy PID control algorithm was designed. Furthermore, simulation experiments with different control algorithms were carried out through the hardware-in-the-loop simulation platform designed in this paper. Simulation results indicated that the hardware-in-the-loop simulation platform could work effectively and the control effect of Bang-Bang Fuzzy PID control algorithm was good.

Abstract: Hardware-in-the-loop simulation (HILS) is a scheme that incorporates some hardware components of primary concern in the numerical simulation environment. This paper discusses the implementation and benefits of using the HIL testing system for electronic control unit of dual-clutch transmission (DCT) vehicle.

Abstract: In order to meet the development and test demands of the body control module, the simulation testing system of the automobile Body Control Module was designed with the Hardware-in-the-loop simulation technology. Based on the function of BCM, the key technology of modeling and simulation, interface design and automation testing were explained to implement real-time simulation and testing for BCM. It assure the development quality, shorten the design period and reduce the product cost.

Abstract: Due to some nonlinear factors and time delay in electronic throttle, the opening of electronic throttle is difficult to control. For overcoming these difficulties, in this paper a fuzzy adaptive PID controller is designed for an electronic throttle control system. The model of electronic throttle control system is built based on Matlab/Simulink and realized with a hardware-in-the-loop simulation system, which is based on MACS565. Simulation research and experiment results show that, compared with PID control system, the fuzzy adaptive PID control system, has some advantages. The all performance index with the fuzzy adaptive PID control is better than that of the PID control.

Abstract: Small cylindrical object navigating near free-surface is subject to wave disturbance. Wave disturbance can dramatically influence the depth control of the near-surface navigating object. A self-regulating fuzzy depth control method is proposed to keep the small cylindrical object navigate at the expected depth under free-surface disturbance. The near-surface dynamic model of the cylindrical object is presented and the fuzzy depth control method is modeled. The results obtained by a series of hardware-in-loop simulations demonstrate that the self-tuning fuzzy depth control method is valid to keep the small cylindrical object navigate steadily in the expected depth under free-surface disturbances.

Abstract: Hardware-in-loop simulation (HILS) is an important approach to the development of Unmanned Aerial Vehicle (UAV) systems. In this paper, a complete HILS system for UAV was constructed based on the dSPACE real-time simulator. To simulate the real world situation, problems such as the GPS signal and accelerometer signal imitation were addressed in the dSPACE framework. The HILS simulation of a UAV’s take-off process was exhibited with comparison to the digital simulation; the results show effectiveness of the proposed HILS system.

Abstract: To improve the maintainability, scalability, and reusability of models in complicated Missile Weapon System simulation, the system of a hardware-in-the-loop (HIL) simulation system based on high Level Architecture (HLA) and Modelica is designed, which can satisfy the need of interoperability among federates, and the simulation model library of missile based on Modelica is developed. Simulation application of missile trajectory and scene simulation is devised and is introduced into the federation to achieve the interaction between them and other federates. New simulation application incorporated with latest simulation technology can easily be introduced into the existing simulation system if they are in accordance with the HLA standards. The scene simulation application provides developers with a visual method to assess the performance of the system, which works as a federation in the HLA-based system. The results of missile trajectory simulation and scene simulation are given. The reusability of Modelica-based missile model provides designers with great flexibility and reusability in developing new missile models.

Abstract: In order to improve hybrid electric vehicle’s energy efficiency, this paper did a research on the regenerative braking system of HEV. In this paper we proposed a new parallel regenerative braking control strategy for HEV and analyzed its characteristics in details. Based on theoretical analysis, we developed a parallel regenerative braking controller for a certain HEV, and built hardware-in-the-loop simulation system to test the controller’s performance. We chose the UDDS driving condition for simulation, and the result shows that the regenerative braking controller we developed is effective and reliable. The controller fulfills the parallel regenerative braking control strategy and distributes the braking force accurately. The energy recovery efficiency reaches 16.7%, which significantly improves the vehicle’s energy efficiency.