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This document presents the research results in the area of measurement and analysis of the negative traffic impacts on the environment in cities using innovative sensor networks with the output to the traffic information and control systems and smart cities systems in general.
The authors report about a commercial development of a radar-based presence detection for automotive interior applications. The major focus is the detection of forgotten children on the rear bench of a vehicle in order to save them from hyperthermia. The occupancy decision criteria is primarily derived by a measured quantity called R-value. Critical occupancy states are verified by a correlation-based...
We present a method for systematic consideration of security attributes in development of cyber-physical systems. We evaluate our method in development of commercial vehicles that were so far unreasonably excluded from automotive security studies (despite the great importance of commercial vehicles for the society). We have conducted analysis of a known zero-cost non-physical attack, fine-tuned to...
An Android application (app), called Real Time Range Tracker, was developed as part of a Naval Innovation Science and Engineering program and provides near real-time “line of sight” range between mobile smart devices. In order to properly design tests and analyze test results, the accuracy of the data generated by the app must be fully understood along with any associated measurement uncertainties...
While aerospace launch vehicles are vulnerable to security attacks, post-liftoff attacks have the most potential for destruction including loss of the vehicle or loss of life. This paper demonstrates an approach for security testing an aerospace launch system post-liftoff. This approach is based on building a security test suite from a behavioral model, an attack type and a mitigation model. Our behavioral...
Over a decade of work has been conducted in the development of NASA's Hypersonic Inflatable Aerodynamic Decelerator (HIAD) deployable aeroshell technology. This effort has included multiple ground test campaigns and flight tests culminating in the HIAD project's second generation (Gen-2) aeroshell system. The HIAD project team has developed, fabricated, and tested stacked-torus inflatable structures...
NASA's Low-Density Supersonic Decelerator Project is developing and testing the next generation of supersonic aerodynamic decelerators for planetary entry. A key element of that development is the testing of full-scale articles in conditions relevant to their intended use, primarily in the tenuous Mars atmosphere. To achieve this testing, the LDSD project developed a new test architecture for the...
United Launch Alliance (ULA) and their United States Air Force (USAF) Evolved Expendable Launch Vehicle (EELV) customer initiated operational flights of both the Atlas V and Delta IV launch vehicle families in 2002. Both Launch Vehicle families have provided 100% mission success since their respective inaugural launch and have demonstrated launch capability from both Vandenberg Air Force Base (VAFB)...
The Icefin vehicle is a novel, custom under-ice unmanned underwater vehicle. This vehicle was designed for polar sub-ice deployment and was deployed to McMurdo, Antarctica in November of 2014. An overview of the unique vehicle design is presented here, along with a summary of the deployment testing in Antarctica. Lessons learned from this deployment provided an opportunity for design improvements...
In this paper we discuss the testing of a novel underwater glider designed to be fast and maneuverable for operation in the littorals. The glider's pneumatic buoyancy engine was shown to operate reliably and provide large, rapid displacements. However, the compressibility of the bladder and associated change in tank weight (from exhausting air with each dive) presented significant challenges in trimming...
The paper is focused on the description of modern image processing methods within vehicles with orientation on Lane Departure Warning Systems (LDWS), which are a part of modern Cooperative-Intelligent Transportation Systems (C-ITS). A solution is described for searching of horizontal traffic signs using a segmentation method based on Hough transform. The practical part states the results of software...
Vehicle simulators are widely used to test the correctness of vehicle control algorithms. It is important to create a virtual road environment in a way that the vehicle algorithm can be tested under various circumstances that may happen in the real world. However, building such a road environment is typically time consuming and performed in a manual and ad-hoc fashion without having a good notion...
Design, modeling, simulation, and vibration testing related to electromagnetic energy harvesters are investigated in this paper. A rail-borne electromagnetic energy harvester with copper-beads spacing is proposed and fabricated, the suitable for harvesting vibration-induced energy of the wheelset/track system. A vehicle-track model considering vehicle traveling load is constructed and numerically...
The development of automotive electronics and software systems is often associated with high costs due to their multi-domain nature (including control engineering, electronics, hydraulics, mechanics, etc). The involvement of these different disciplines makes it difficult for control engineers to test their controllers with them being integrated in the whole system, in early development phases. By...
Exports of used electrical and electronic equipment (UEEE) from richer countries and into developing countries provide socio-economic benefits, but also contribute to the huge environmental and health damages e-waste causes in these countries.
This paper shows the results of the research work with regard to optimization of test procedures based on systematic analysis of field behavior. The presented approach outlines all important steps of the overall process, the statistical methods and algorithms used with the help of an example from the automotive industry. The example is based on the data gathered during various rides with four different...
This paper presents an approach to product development and reliability testing utilizing Robustness Validation (RV), an automotive electronics development recommended practice, specified in SAE-J1211 (surface vehicles) and SAE-J1879 (semiconductor devices in automotive applications). Intelligent testing and Robustness Validation approaches can become an integral part of the design for reliability...
Durability life of an automotive product depends not just on structural characteristics of the product but also on time and frequency domain characteristics of the road load it is exposed to over its life. Accelerated durability life testing is performed in a proving ground with a well defined set of damaging road events or ‘stressors’ performed at a set of predefined speeds. A testing profile consisting...
This paper describes a model-based test generation approach for testing autonomous systems interacting with their environment (i.e., world). Unlike other approaches that assume a static world with attributes and values, we present and test the world dynamically. We build the world model in two steps: a structural model that constructs environmental factors (i.e., actors) and a behavioral model that...
this paper describes the rationale and background for a low cost Portable Emission Measurement System in Hong Kong. We describe an accurate and portable system design which makes emissions testing feasible and applicable for a broad range of applications. By using industry standard components the test results are comparable to certified laboratory systems. The low cost system takes emissions testing...
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