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Hardware-in-the-loop (HIL) and fault injection testing are widely used in automotive industry to validate hardware and software architectures as best practice and in fulfillment with international functional safety standards. Time and economical investments can constitute an obstacle to the development of effective testing systems, especially for small and medium automotive industries. This paper...
Fault protection as a discipline involves a collection of flight software logic and operational processes for detecting unacceptable anomalous behavior, responding prior to reaching criticality, restricting the propagation of a failure beyond a fault containment region, and recovering the vehicle back to full or degraded functionality if possible. The System Fault Protection (SFP) design for the SMAP...
This article refers to a study on the behavior of an internal combustion engine of a vehicle when you add oxyhydrogen (HHO) as a supplementary fuel, produced from a modified alkaline type electrolyzer, called HHO generator. The first stage consists of a theoretical and experimental analysis of what happens in the internal combustion engine by adding the oxyhydrogen. As a result of this first stage...
With continuous pressure for reducing vehicle development time & cost, without compromising reliability and quality from system, it is imperative to move from Road to Lab development. Every OEM is currently focusing on using virtual environment to complete the virtual testing and functional check for the system before hitting the road. This method of developing software and calibration in virtual...
Electronic controller unit (ECU) used for controlling sub-systems of complex real life applications like automotive vehicles can pose several challenges. Many times one needs to plan development and testing of controller, when the end vehicle is also under development and hence not available. In such case, hardware in the loop (HIL) approach for testing such controllers emulates the external application...
This paper presents a survey of a selection of currently available simulation software for robots and unmanned vehicles. In particular, the simulators selected are reviewed for their suitability for the simulation of Autonomous Underwater Vehicles (AUVs), as well as their suitability for the simulation of multi-vehicle operations. The criteria for selection are based on the following features: sufficient...
Logistics system is an important element for the engine production line, and the automation degree affects the efficiency of the production line. This paper presents an automatic logistics system for the engine cylinder block production line, based on a type identification and tracking subsystem, and an automatic transmission and storage subsystem. The logistics system achieves the mixed manufacturing...
In this paper we illustrate a cost-effective software-in-the-loop simulation methodology, which is particularly suitable for testing large-scale pervasive systems and applications. The main advantage of such an approach is that real code has to be deployed once, and a general-purpose simulation engine replicates it over virtual devices and environments as often as we wish. Our implementation of the...
Integrating the computing process and the physical process, cyber-physical systems (CPS) pose many challenges to the system analysis and modeling. While most of the existing work focuses on developing the precise and formal model of CPS, little attentions have been given to the early requirements analysis and modeling which focuses on what the users' requirements are and what the software and physical...
Historically the EV market has focused on providing services such as charging infrastructure based on master planning in the hope that end users will want to use the provided assets. This model has been shown to fail in certain instances with stranded assets and non-viable business models. This paper demonstrates how Route Monkey is working with partners to create demand within fleets for the deployment...
The paper describes a version of n-copter, the vehicle known as quadcopter. It is an aircraft, a kind of helicopter, with four rotors. Mechanical and electrical construction is described in details. The model is steering by radio waves. Three fuzzy logic controllers are used for rotors, each for one axis and main controller for whole system. Dynamical behavior in air is studying and shown in pictures...
Development and testing of automotive embedded control systems traditionally depended on the availability of prototype vehicles. Automotive manufactures adopted model based approaches in order to produce quality products faster. Thus, the need of more integrated testing using virtual environment in an automated manner becomes a vital element of product development. The full vehicle simulator aims...
The status of vehicle fault diagnosis protocols applied in the market is analyzed, and also are the problems of the hand-held diagnosis instruments. Through the way of combination of PC-style diagnosis software and Vehicle Communication Interface (VCI), the popular type of vehicle fault diagnosis system based on both K-line and Controller Area Network (CAN) is developed. The diagnosis system is divided...
A multiplayer gaming environment, combining the multi-disciplinary engineering simulation software, Virtual Test Bed (VTB), and the gaming tool, Unity3D, is introduced to realize the analysis of energy storage for electric/hybrid vehicle through a vehicle driving game. The gaming engine couples the three-dimensional (3D) multibody vehicle system, especially developed in VTB at proper level of complexity...
The following document describes the way Mobile ELM works and what is its real life applicability in mobile equipment industry. The solution presented by us has the main advantage that it can use Bluetooth communication in order to create a communication channel between software that monitors hardware components, and our application that signals every undesirable behavior. In this way in the future...
Vehicular powertrain test bench was designed. A LabVIEW based measurement and control system for the test bench was secondary developed. CAN signals of powertrain's master controllers, serial signals of electric driving system based on USS and MODBUS protocol were synchronously sampled and monitored. The system integrated various communication protocols in one platform and had a good portability and...
Base on the Visual C++ and MATLAB software, a psychoacoustical evaluation system (PES) for sound quality of vehicle noise is developed in this paper. This system can be used for real-time sound signal acquisition, time-frequency analysis and psychoacoustical evaluation of vehicle noises. The software packages include 1/n octave filtering, short-time Fourier transform (STFT), A-, B-, C- and D-weighting...
The potential of applying search-based testing principles to functional testing has been demonstrated in various cases. The focus was mainly on simulating the system under test using a model or compiled source code in order to evaluate test cases. However, in many cases only the final hardware unit is available for testing. This research presents an approach in which evolutionary functional testing...
As nowadays urban transportation system is usually operated by multiple operators and has a variety of transportation forms, it is important to build up a smart urban transportation one ticket system. In this paper, by using the business rule approach, we draw the changeable ticket needs out from the smart urban transportation one ticket system to supervise them separately, and propose a business...
This paper presents Hardware-in loop (HIL) testing for GM two-mode hybrid. First Modeling and simulation of GM two-mode hybrid using model based design (MBD) process is performed. HIL testing is performed using dSpace MicroAutoBox (MABX) and National Instruments PXI. The control strategy compiled code is uploaded to MABX using ControlDesk software and the corresponding plant model is transferred to...
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