Technical Articles

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Delphi Automotive LLP


Delphi Automotive LLP has published these technical articles:

(Calibration and Testing Services)
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The present paper describes the system design for the Clear Vision auto defog system and the improvements made to the Integrated Dew Point and Glass Temperature (IDGT) sensor. The Clear Vision auto... (View Full Article)
(Calibration and Testing Services)
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2-step variable valve actuation using early-intake valve closing is a strategy for high fuel economy on sparkignited gasoline engines.... (View Full Article)
(Calibration and Testing Services)
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During the production controller and software development process, one critical step is the controller and software verification. There are various ways to perform this verification. One of the... (View Full Article)
(Calibration and Testing Services)
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This paper presents a hardware-in-the-loop (HIL) test bench for the validation of production transmission controls software, with a focus on a closed-loop vehicle drive-train model incorporating a... (View Full Article)
(Calibration and Testing Services)
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Steer by Wire systems provide many benefits in terms of functionality, and at the same time present significant challenges too. Chief among them is to make sure that an acceptable steering feel is... (View Full Article)
(Calibration and Testing Services)
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Production software validation is critical during software development, allowing potential quality issues that could occur in the field to be minimized. By developing automated and repeatable software... (View Full Article)
(Calibration and Testing Services)
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Owing to the complex processing effects of injection molding and the influence of the wide-range of in-service conditions (e.g., from -40ºC to 90ºC) on the performance of polymer airbag covers, the... (View Full Article)
(Calibration and Testing Services)
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In the DOE-Delphi Composite Chassis Cross-Member program, 3TEX 3Weave (3D woven fiberglass mat)/vinyl-ester (Dion 9800) composites have been investigated as a candidate material. One of the most... (View Full Article)
(Calibration and Testing Services)
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A key quantity for use in engine control is the exhaust manifold pressure. For production applications it is an important component in the calculation of the engine volumetric efficiency, as well as... (View Full Article)
(Calibration and Testing Services)
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Delphi Harrison Thermal System's comfort model can be used to predict the local thermal comfort level of an occupant in the highly non-uniform thermal environment of a vehicle cabin. This model is... (View Full Article)
(Calibration and Testing Services)
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This paper addresses the longstanding problems of residual gas measurement during engine dynamometer testing, and of real-time residual modeling for engine control applications. A new method is... (View Full Article)
(Calibration and Testing Services)
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A novel measurement technique to evaluate the transient nature of the pulsing sprays from gasoline fuel injectors is created by combining and synchronizing established laser diffraction and high-speed... (View Full Article)
(Calibration and Testing Services)
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The need for improved emissions control in lean exhaust to meet tightening, world-wide NOx emissions standards has led to the development of selective catalytic reduction of NOx with ammonia as a... (View Full Article)
(Calibration and Testing Services)
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Simulation of cabin climatic conditions is becoming increasingly important as a complement to wind tunnel and field testing to help achieve improved thermal comfort while reducing vehicle development... (View Full Article)
(Calibration and Testing Services)
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The paper describes the development of a vehicle stability indicator based on the correlation between various current vehicle chassis sensors such as hand wheel angle, yaw rate and lateral... (View Full Article)
(Calibration and Testing Services)
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The dramatic change in terms of pollutant constraints for diesel engines, with future Euro-6 regulations for example, will probably require the improvement of alternative combustion modes such as... (View Full Article)
(Contract Manufacturing and Fabrication)
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This paper presents the development of coordinated control of vehicle systems, specifically for controlled brakes and controlled steering systems. By utilizing a control structure to oversee a... (View Full Article)
(Calibration and Testing Services)
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In this paper we present a fast symmetry search and filtering algorithm for monocular vision based pedestrian candidate detection application.... (View Full Article)
(Industrial and Engineering Software)
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Traffic engineers use time-of-day travel time databases to characterize normal travel times on roads. This information is used by traffic management centers together with information from sensors in... (View Full Article)
(Engineering and Technical Services)
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AMI-C (Automotive Multimedia Interface Collaboration) contains an HMI specification to make it easier for multimedia devices to work in different vehicle brands, makes and models, in harmony with each... (View Full Article)
(Contract Manufacturing and Fabrication)
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Selective Catalytic Reduction (SCR) is the dominant solution for meeting future NOx reduction regulations for heavy-duty diesel powertrains. SCR systems benefit from closed-loop control if an... (View Full Article)
(Calibration and Testing Services)
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In this paper, we review existing software safety standards, guidelines, and other software safety documents. Common software safety elements from these documents are identified. We then describe an... (View Full Article)
(Calibration and Testing Services)
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In recent years, gasoline direct injection (GDi) engines have been popular due to their inherent potential for reduction of exhaust emissions and fuel consumption to meet stringent EPA standards.... (View Full Article)
(Calibration and Testing Services)
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The Curtain Airbag (CAB) is used currently to provide head and neck protection for the front-seat and rear-seat vehicle occupants during side-impact collisions and vehicle rollovers. The coated fabric... (View Full Article)
(Calibration and Testing Services)
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This paper reviews the state of the art on analytical design of cockpit modules in two most crucial performance categories: safety and comfort. On safety, applications of finite element analysis (FEA)... (View Full Article)
(Calibration and Testing Services)
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The perceived interior noise has been one of the major driving factors in the design of automotive interior assemblies. Buzz, Squeak and Rattle (BSR) issues are one of the major contributors toward... (View Full Article)
(Calibration and Testing Services)
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Anti-Lock Brake Systems use hydraulic valves to control brake pressure and ultimately, wheel slip. The difference in pressure across these hydraulic valves affects their performance. The control of... (View Full Article)
(Calibration and Testing Services)
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Robust Engineering techniques developed by Taguchi have traditionally applied to the optimization of engineering designs. Robust Engineering methods also may be applied to software testing of ECU... (View Full Article)
(Calibration and Testing Services)
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A clear understanding of Customer and User requirements is essential to successfully develop, design, build, test and produce components and systems for Customer Programs. Failure to thoroughly... (View Full Article)
(Contract Manufacturing and Fabrication)
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Introduction of higher DC system voltage distribution networks greater than 24V in future passenger vehicles appears to be an unavoidable consequence of meeting the increasing future electrical power... (View Full Article)
(Calibration and Testing Services)
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In many applications, especially automotive, solder interconnects experience degradation due to prolonged temperature and power cycling. This degradation behavior manifests itself as changes in the... (View Full Article)
(Calibration and Testing Services)
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This paper represents Part I of a three part series on automotive FM diversity systems. Part I focuses on a review of multipath fading.... (View Full Article)
(Calibration and Testing Services)
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This paper represents Part II of a three part series on automotive FM diversity systems.... (View Full Article)
(Calibration and Testing Services)
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This paper represents Part III of a three part series on automotive FM diversity systems.... (View Full Article)
(Contract Manufacturing and Fabrication)
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The B-COOL project, funded by the European Union, is devoted to the development of low cost and efficient R-744 system for small cars. In the framework of this initiative a Fiat Panda and a Ford Ka... (View Full Article)
(Calibration and Testing Services)
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The paper is aimed at investigating backpressure and backpressure variation of three way catalysts (TWC). Results presented show that backpressure variation is influenced by measurement error,... (View Full Article)
(Contract Manufacturing and Fabrication)
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Deployable or active knee bolsters are being introduced by many OEMs, primarily on the driver side, as an improvement to the fixed or passive knee bolsters. There are shortcomings with the fixed knee... (View Full Article)
(Calibration and Testing Services)
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Since its invention in early 1990s, the side curtain airbag has become an important part of the occupant restraint system for side impact and rollover protection. Computer Aided Engineering (CAE) is... (View Full Article)
(Calibration and Testing Services)
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Experimental (optical imaging) and CFD investigations of the cavitating flow in a transparent large-scale model of a GDi outward-opening injector, with a swirler-type valvegroup, has been performed.... (View Full Article)
(Calibration and Testing Services)
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Automotive radar application is a focus in active traffic safety research activities. And accurate lateral position estimation from the leading target vehicle through radar is of great interest. This... (View Full Article)
(Calibration and Testing Services)
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In an effort to shorten and improve the efficiency of the product design process (PDP), Delphi has developed an application specific CFD design tool that helps design engineers optimize designs prior... (View Full Article)
(Contract Manufacturing and Fabrication)
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This paper presents the development of a transmission closed loop pressure control system. The objective of this system is to improve transmission pressure control accuracy by employing closed-loop... (View Full Article)
(Calibration and Testing Services)
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Modern engines are becoming highly complex, with several strongly interactive subsystems - - variable cam phasers on both intake and exhaust, along with various kinds of variable valve lift... (View Full Article)
(Calibration and Testing Services)
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This paper discusses the development and application of a closed-loop co-simulation platform for a controlled chassis system. The platform is comprised of several software packages, including... (View Full Article)
(Motor Controls and Drives)
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Implementation of engine turnoff at idle is desirable to gain improvements in vehicle fuel economy. There are a number of alternatives for implementation of the restarting function, including the... (View Full Article)
(Calibration and Testing Services)
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High power electronic applications in the automotive industry require interconnecting substrates that have high reliability, high thermal conductivity, high current capability, multi-layer potential,... (View Full Article)
(Calibration and Testing Services)
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In occupant sensing system development, the Anthropomorphic Test Dummy (ATD) and the Occupant Classification ATD (OCATD) are frequently used to simulate live human subjects in the testing and... (View Full Article)
(Calibration and Testing Services)
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In this paper a method of mitigating the consequences of potential brake actuator failure in vehicles with brake-bywire (BBW) and possibly with steer-by-wire (SBW) systems is described. The proposed... (View Full Article)
(Calibration and Testing Services)
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Embedded controllers and digital signal processors are increasingly being used in automotive safety critical control systems. Controller integrity is a significant concern in these systems. Over the... (View Full Article)
(Calibration and Testing Services)
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Heating and cooling automotive seats are a relatively new technology that delivers conditioned air to the occupant's seat providing an overall improvement in occupant comfort. This paper combines... (View Full Article)
(Calibration and Testing Services)
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Computer modeling and simulation have become one of the primary methods for development and design of automobile occupant protection systems (OPS). To ensure the accuracy and reliability of a... (View Full Article)
(Contract Manufacturing and Fabrication)
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Implementation of real-time combustion feedback for use in closed-loop combustion control is a technology that has potential to assist in the successful production implementation of advanced diesel... (View Full Article)
(Contract Manufacturing and Fabrication)
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Computational Fluid Dynamic (CFD) analysis was performed using FLUENT to analyze the fluid thermal performance of a Battery cell container for the Ford Fusion Hybrid Electric Vehicle. The objective of... (View Full Article)
(Contract Manufacturing and Fabrication)
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2-Step variable-valve lift and timing is a high-value technology for the further development of automotive internal combustion engines. 2-Step valve train systems provide improved engine efficiency,... (View Full Article)
(RF, Microwave, and Wireless Components)
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As Satellite Digital Audio Radio Services (SDARS) become more prevalent and more mature, automotive vehicle manufacturers (original equipment manufacturers or OEMs) desire to bury receive antennas... (View Full Article)
(Contract Manufacturing and Fabrication)
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This paper describes a new tool to capture cylinder pressure information, calculate combustion parameters, and implement control algorithms. There are numerous instrumentation and prototyping systems... (View Full Article)
(Contract Manufacturing and Fabrication)
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The functional requirements (FRs) and design equation of a flexible system change in a continuous manner with respect to a variable such as time. An event driven flexible system is defined as a... (View Full Article)
(Calibration and Testing Services)
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The development and preliminary testing of an algorithm that detects impending rollover is described. The algorithm is intended for use in conjunction with active chassis systems to prevent some types... (View Full Article)
(Calibration and Testing Services)
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Vehicle packaging and build requirements often impact the size and routing of electrical harnesses utilized in vehicles. More specifically, OEMs (Original Equipment Manufacturer) often have strict... (View Full Article)
(Contract Manufacturing and Fabrication)
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As engines advance toward greater efficiency and lower emissions, there is increasing need for accurate realtime residual models for engine control. Both the formulation of real-time-capable models... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
Slush molding is a unique processing operation that was developed originally for polyvinyl chloride (PVC) based materials. It has been utilized to produce a variety of automotive interior products,... (View Full Article)
(Calibration and Testing Services)
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In order to allow continued production of the AM General Optimizer 6500 during MY 2007 through 2010 this IDI engine (Indirect Injection - swirl chamber) requires sophisticated aftertreatment controls... (View Full Article)
(Heating and Cooling Equipment)
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The majority of today's Automatic Climate Control (ACC) systems are based on linear analog controller technology which was developed in the mid of last century. In cognizance of the state of the ACC... (View Full Article)
(Calibration and Testing Services)
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The pursuit of new combustion concepts or modes is ongoing to meet future emissions regulations and to eliminate or at least to minimize the burden of aftertreatment systems. In this research,... (View Full Article)
(Magnets)
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This motor adopted a salient pole type surface permanent magnet rotor, which enables it both to produce reluctance torque and to minimize the use of magnets. The inductance value is set at the limit... (View Full Article)
(Calibration and Testing Services)
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The paper describes a new strategy for real-time sensor diagnostics that is based on the statistical correlation of various sensor signal pairs. During normal fault-free operation there is a certain... (View Full Article)
(Contract Manufacturing and Fabrication)
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It has been demonstrated that multiple beam ranging can be achieved with a single camera and spatially encoded probing beam matrix. However, as the density of the beam matrix increases, identification... (View Full Article)
(Engineering and Technical Services)
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Hydrogen is the most plentiful gas in the universe. However hydrogen never occurs naturally, always combines with other elements such as oxygen and carbon. Hydrogen is the ultimate clean energy... (View Full Article)
(Contract Manufacturing and Fabrication)
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A dual depth passenger air bag technology has been developed which provides two different deployed cushion shapes coupled with two inflation levels, but only uses two initiators, one for a single... (View Full Article)
(Calibration and Testing Services)
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This paper presents a cost-effective receiver system utilizing dual tuner antenna diversity. There are two modes of operation. In mode 1, the system is in phase diversity where two tuners operate... (View Full Article)
(Calibration and Testing Services)
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Low-cost lean NOx aftertreatment is one of the main challenges facing high-efficiency gasoline and diesel engines operating with lean mixtures. While there are many candidate technologies, they all... (View Full Article)
(Calibration and Testing Services)
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To confirm the correct operation and detect the potential errors in the ever more complicated automotive ECU application software are very challenging. This paper presents a new approach to detect... (View Full Article)
(Calibration and Testing Services)
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The focus of this study is to determine the effect of using B-20 (a blend of 20% soybean methyl ester biodiesel and 80% ultra low sulfur diesel fuel) on the combustion process, performance and exhaust... (View Full Article)
(Calibration and Testing Services)
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A system for injection of diesel fuel and water with realtime control, or real-time water injection (RTWI), was developed and applied to a heavy-duty diesel engine. The RTWI system featured electronic... (View Full Article)
(Calibration and Testing Services)
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Execution of a software safety program is an accepted best practice to help verify that potential software hazards are identified and their associated risks are mitigated. Successful execution of a... (View Full Article)
(Machine and Motion Controllers)
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In this paper the effects of rear brake imprecision on vehicle braking performance and yaw dynamics are investigated for a vehicle with individually controlled brake actuators. The effects of side to... (View Full Article)
(Calibration and Testing Services)
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An experiment was performed with a 1.3L catalytic converter design containing a front and rear catalyst each having a volume of 0.65 liters. This investigation varied the front catalyst parameters to... (View Full Article)
(Industrial and Engineering Software)
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Since the end of the 1990s, model-based development processes have increasingly been adopted for the development of automotive embedded control software. One of the main goals of this approach is a... (View Full Article)
(Calibration and Testing Services)
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The electrical power demand in automobiles is rising steadily, especially in luxury vehicles, due to new electrical systems that enhance passenger comfort and safety. The present 14 V bus and Lundell... (View Full Article)
(Batteries and Accessories)
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While the ZEV program's electric vehicles did not become successful market-driven products, many of the technical advantages of electric vehicles were validated by enthusiastic California consumers.... (View Full Article)
(Sensors, Transducers and Detectors)
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Rollover sensing and discrimination generally requires an algorithm that monitors vehicle motion and anticipates conditions that will lead to a rollover. In general, a deploy command is required in a... (View Full Article)
(Engineering and Technical Services)
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Euro IV emissions limits have become a major milestone for the car industry in Europe. To comply with reduced emissions targets, a significant effort was required to minimize light-off time and to... (View Full Article)
(Contract Manufacturing and Fabrication)
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Air Conditioning systems with reheat reduction based for energy efficiency have generally been implemented with either electronic variable compressors through active stroke control or with fixed... (View Full Article)
(Calibration and Testing Services)
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A methodology for measuring oil viscosity in an internal combustion engine has been developed that is based on measured values of oil pressure and oil temperature at a relatively low engine speed near... (View Full Article)
(Calibration and Testing Services)
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An accelerated fuel injector deposit formation test was developed to understand fuel deposit formation on fuel injectors for Gasoline Direct injection engines. As part of the test development, both a... (View Full Article)
(Image Sensors)
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The development of an automotive qualified packaging technology for CMOS and CCD imager chips is described. A flip-chip-on-flex solution was developed. This package solution was demonstrated using a... (View Full Article)
(Calibration and Testing Services)
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This paper presents production Engine Management System algorithms for Estimation and Control of Turbocharged engines... (View Full Article)
(Calibration and Testing Services)
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The interaction between the deploying airbag and the Out-Of-Position (OOP) occupants remains a challenge in occupant protection system simulations. The integration of Computational Fluid Dynamics... (View Full Article)
(Calibration and Testing Services)
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With the requirements for reducing the emissions and improving the fuel economy, the automotive companies are developing hybrid, 42 V and fuel cell vehicles. Power electronics is an enabling... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
Partially Premixed Combustion (PPC) is a combustion concept by which it is possible to get low smoke and NOx emissions simultaneously. PPC requires high EGR levels and injection timings sufficiently... (View Full Article)
(Calibration and Testing Services)
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The predictive capability of Lagrangian and Eulerian multidimensional computational fluid dynamics models accounting for the onset and development of cavitation inside Diesel nozzle holes is assessed... (View Full Article)
(Calibration and Testing Services)
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Model-based systems development relies upon the concept of an executable specification. A survey of published literature shows a wide range of definitions for executable specifications [1-10]. In this... (View Full Article)
(Calibration and Testing Services)
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Advanced chassis control systems enable a vehicle to achieve new levels of performance in handling stability and responsiveness. In recent work by NHTSA and others, the performance of Electronic... (View Full Article)
(Calibration and Testing Services)
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Un-dispersed antifreeze can cause detrimental changes in diesel engine oils. The oil condition sensor invented at Delphi Corporation can detect un-dispersed antifreeze in diesel and gasoline engine... (View Full Article)
(Metals and Alloys)
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A new family of automotive three-way conversion (TWC) catalyst technologies has been developed using a Precision Metal Addition (PMA) process. Precious metal (PGM) fixation onto the support occurs... (View Full Article)
(Calibration and Testing Services)
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This work examines, objectively and subjectively, refrigerant noise induced by the flow of R134a through seven different plate-type automotive evaporator tubes with two tube heights and airflow depths... (View Full Article)
(Calibration and Testing Services)
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An analytical study of spray from an outwardly opening pressure swirl injector has been presented in this paper. A number of model injectors with varying design configurations have been used in this... (View Full Article)
(Calibration and Testing Services)
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The technological and process developments within the semiconductor industry during the past two decades has led to significant advancements in the complexity, functionality and performance of... (View Full Article)
(Calibration and Testing Services)
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In light of the growing emphasis on CO2 emissions reduction, Delphi has undertaken an internal development program to show the fuel economy benefits of lean, stratified combustion with its... (View Full Article)
(Calibration and Testing Services)
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With increasingly stringent emissions regulations and concurrent requirements for enhanced engine thermal efficiency, a comprehensive characterization of the automotive gasoline fuel spray has become... (View Full Article)
(Calibration and Testing Services)
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Modern diesel engines are equipped with an increasing number of actuators set to improve human comfort and fuel consumptions while respecting the restricted emissions regulations. In spite of the... (View Full Article)
(Calibration and Testing Services)
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Goldilocks is a proposed serial communication protocol designed to find the "sweet spot" in trading off overhead, complexity, throughput, cost, and real time performance. Simple off line analysis of... (View Full Article)
(Industrial and Engineering Software)
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In today's extremely competitive, technically challenging and cost sensitive market place, the design process must be reviewed to shorten the design time and remove the expenses associated with... (View Full Article)
(Contract Manufacturing and Fabrication)
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Ethanol is commonly employed as a transportation fuel in Brazil. However, since pure ethanol's flash point is 12°C, flex-fuel vehicles marketed in Brazil are currently equipped with a redundant fuel... (View Full Article)
(Calibration and Testing Services)
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Heating and cooling of automotive seats is a relatively new technology that delivers conditioned air to the occupant's seat providing an overall improvement in passenger comfort. This paper combines... (View Full Article)
(Calibration and Testing Services)
From this Article:
This paper proposes the concept of Generalized Diagnostic Component (GDC) and presents a modular fault diagnostic strategy for safety critical automotive systems. The diagnostic strategy makes full... (View Full Article)
(Machine and Motion Controllers)
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A typical problem that is encountered by drivers of vehicles with manual transmissions is rollback on an incline. This occurs when the driver is trying to coordinate the release of the brake pedal... (View Full Article)
(Calibration and Testing Services)
From this Article:
As diesel emission regulations continue to increase, the use of exhaust aftertreatment systems containing, for example the diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) will... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
A numerical study has been performed to investigate the soot emission from a high-speed single-cylinder direct injection diesel engine.... (View Full Article)
(Calibration and Testing Services)
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In a CAS system, the distance and relative velocity between front and host vehicles are estimated to calculate time-to-collision (TTC). The distance estimates by different methods will certainly... (View Full Article)
(Calibration and Testing Services)
From this Article:
In dynamic rollover tests many vehicles experience sustained body roll oscillations during a portion of road edge recovery maneuver, in which constant steering angle is maintained. In this paper,... (View Full Article)
(Calibration and Testing Services)
From this Article:
As the speed and memory capabilities of microprocessors have increased, it has become more popular for the signal conditioning of knock sensor outputs to be performed entirely within the... (View Full Article)
(Calibration and Testing Services)
From this Article:
A combined experimental and computational investigation of the break-up structure of conical sprays of the high-pressure outward-opening gasoline directinjection (GDi) injectors has been carried out,... (View Full Article)
(Calibration and Testing Services)
From this Article:
From a quarter to one half of all projects that fail to meet their imperatives of cost, performance / quality or schedule are in some way associated with missing, poorly written or misunderstood... (View Full Article)
(Power Supply and Conditioning)
From this Article:
Modern military ground vehicles are dependent not only on armor and munitions, but also on their electronic equipment. Advances in battlefield sensing, targeting, and communications devices have... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
This paper presents a low-cost switched diversity receiver system utilizing a single tuner, simple remote antenna unit and one RF cable. The switched diversity algorithm is implemented in the receiver... (View Full Article)
(Calibration and Testing Services)
From this Article:
The intensity of a combustion flame ionization current signal (ionsense) can be used to monitor and control combustion in individual cylinders during a cold engine start. The rapid detection of poor... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
Through the use of finite-element modeling, pressure patterns on the underside of seat foam can be computed for a variety of occupants and seating positions. A design tool has been created which... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
The materials used for making plastic fuel tanks are: virgin high-density polyethylene; fuel tank regrind; ethylene vinyl alcohol copolymer (EVOH) fuel barrier; and maleic anhydride modified linear... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
This paper presents a model-based control system for SCR urea dosing employing an embedded real-time SCR chemistry model and a NH3 sensor. The control algorithm consists of a number of control... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
Audio playbacks are mechanisms which read data from a storage medium and produce commands and signals which an audio system turns into music. Playbacks are constantly changed to meet market demands,... (View Full Article)
(Calibration and Testing Services)
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This paper discusses the implementation of AUTOSAR requirements for the component structure, as well as interfaces to the Application Layer in a model-based development environment. The paper outlines... (View Full Article)
(Calibration and Testing Services)
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Driver error is a major cause of vehicle accidents and fatalities. Many of these accidents are related to impaired driver cognition because of fatigue, drowsiness, stress, or mental workload.... (View Full Article)
(Computer Peripherals)
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This paper presents a monitoring, feedback and control system for SCR urea dosing utilizing an embedded model and NH3 sensing after the SCR for loop closing control.... (View Full Article)
(Connectors)
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Nomadic mobile consumer electronic (CE) devices are growing in functionality and popularity. Some of these devices, such as navigation systems, are being used in vehicles as a lower cost alternative... (View Full Article)
(Calibration and Testing Services)
From this Article:
In the field of vehicle diagnostics accurate instantaneous engine speed information enables the detection and diagnosis of many engine problems, even subtle ones. Currently, there is a limited choice... (View Full Article)
(Calibration and Testing Services)
From this Article:
Advances in wireless communications, model-based diagnostics, human-machine interfaces, electronics and embedded system technologies have created the foundation for a dramatic shift in the way the... (View Full Article)
(Contract Manufacturing and Fabrication)
From this Article:
Dual-monolith catalyst systems containing Pd/Rh three-way catalysts (TWCs) provide effective emission solutions for LEV2/Bin 5 and Bin 4 close-coupled applications at low PGM loadings. These systems... (View Full Article)
(Calibration and Testing Services)
From this Article:
A sensor that passively monitors the driver for intoxication has been demonstrated. The driver's blood alcohol concentration (BAC) is obtained by sensing alcohol and CO2 in air drawn from the vehicle... (View Full Article)
(Motor Controls and Drives)
From this Article:
Adaptive Cruise Control (ACC) technology is presently emerging in the automotive market as a convenience function intended to reduce driver workload. It allows the host vehicle to maintain a set speed... (View Full Article)
(Calibration and Testing Services)
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This paper reviews the current strategies for physical prototyping of Magnesium instrument panel (I/P) structures. Bottlenecks in the traditional physical prototype based product development process... (View Full Article)
(Calibration and Testing Services)
From this Article:
Worldwide scrutiny of the global warming impact of R-134a has presented the automotive industry with a pressing challenge to search for suitable alternative refrigerant(s). HFC-152a, referred to as... (View Full Article)
(Calibration and Testing Services)
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Engine downsizing is one of the most promising engine solutions to improve efficiency, but requires higher specific performance because of a lower engine displacement. The study is based on... (View Full Article)
(Calibration and Testing Services)
From this Article:
Segmented, Silicon-Carbide Diesel Particulate Filters appear to be automotive industry's popular choice for reducing particulate emissions of Diesel Engines, particularly for light duty platforms.... (View Full Article)
(Calibration and Testing Services)
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This paper provides an overview of rollover crash safety, including field crash statistics, pre- and rollover dynamics, test procedures and dummy responses as well as a bibliography of pertinent... (View Full Article)
(RF, Microwave, and Wireless Components)
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The most challenging task for digital mobile satellite broadcast reception is to satisfy a variety of combined requirements for automotive applications. According to the US satellite digital broadcast... (View Full Article)
(Calibration and Testing Services)
From this Article:
The purpose of this paper is to improve the understanding of the advantages of a non-contact electronic throttle control (ETC) air control valve position sensor over the potentiometer technology of... (View Full Article)
(Calibration and Testing Services)
From this Article:
Automotive rollover is a complex mechanical phenomenon. In order to understand the mechanism of rollover and develop any potential countermeasures for occupant protection, efficient and repeatable... (View Full Article)
(Calibration and Testing Services)
From this Article:
Calibration of engine management systems requires considerable engineering resources during the development of modern engines. Traditional calibration methods use a combination of engine dynamometer... (View Full Article)
(Calibration and Testing Services)
From this Article:
Data suggest that in response to substantial educational efforts, more children are being placed in the rear seats of vehicles. As this transition occurs, it is important to make efforts to optimize... (View Full Article)
(Calibration and Testing Services)
From this Article:
The analysis of modern E/E subsystems for vehicle architecture development requires an extensive knowledge base and capability in order to balance all the imperatives of the original equipment... (View Full Article)
(Calibration and Testing Services)
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A single camera and dot matrix structured light are used for target range measurement with optical triangulation. The probing beams are spatially encoded in the image plane so that each beam can be... (View Full Article)
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This paper describes a correlation study on fuel spray pattern recognition of multi-hole injectors for gasoline direct injection (GDi) engines. Spray pattern is characterized by patternation length,... (View Full Article)
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In this paper, dynamics and stability of an articulated vehicle in the yaw plane are examined through analysis, simulations, and vehicle testing. Control of a vehicletrailer combination using active... (View Full Article)
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In 2002, NHTSA statistics indicate air bag deployments saved an estimated 1,500 lives; however, reports of occupants having serious or fatal injuries during air bag deployment appear low relative to... (View Full Article)
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A requirement of many modern safety-critical automotive applications is to provide failsafe operation. Several analysis methods are available to help confirm that automotive safety-critical systems... (View Full Article)
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In this paper, the design and development of an adaptive Energy Absorbing (EA) steering column using systems and virtual engineering approach is presented. An adaptive EA column adapts to the load... (View Full Article)
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Typically, automotive embedded microcontrollers will have flash ROM-resident boot (boot loader) software in order to reprogram the application software and/or the calibration data. However, depending... (View Full Article)
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A RTD (resistive temperature device) high temperature sensor was developed for exhaust gas temperature measurement. Extensive modeling and optimization was used to supplement testing in development.... (View Full Article)
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This study examines the effectiveness of gaseous oxygen at preventing embrittlement in steel associated with exposure to gaseous hydrogen under static loading conditions. Notched C-ring samples... (View Full Article)
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Future light, medium and heavy duty diesel engines will need to satisfy the more stringent emission levels (US 2014, Euro 6, etc.) without compromising their current performance and fuel economy,... (View Full Article)
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There are many analogies between physical security and information security. Both are concerned with protecting something of value, and both have many aspects that need to be considered to ensure the... (View Full Article)
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Electro-mechanical brakes (EMBs) are emerging as a new approach to enhance brake system features as well as braking performance. This paper takes a fresh look at the switched reluctance (SR) drive as... (View Full Article)
(Industrial and Engineering Software)
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The Capability Maturity Model (CMM), originally developed as a software process evaluation tool for Department of Defense projects by the leadership of Carnegie Mellon University in the early 1990's,... (View Full Article)
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Data dictionaries in embedded automotive applications are used for storing data elements and definitions supporting functional and software development. A robust model-based development process should... (View Full Article)
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The purpose of this paper is to show the power of joint ownership between suppliers and customers to create a superior product for the end user. This effort translates into competitive advantages for... (View Full Article)
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Some Electronic Throttle Control (ETC) Air Control Valves (ACV) on automotive internal combustion engines are susceptible to icing of the throttle valve. Ice formation can result in an increase in... (View Full Article)
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Twin Sheet Thermoforming. Minimization of cycle time for heating sheets of a polymer of various sizes. Providing, improved quality, and cycle time reduction. A process optimization algorithm.... (View Full Article)
(Temperature Sensing)
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An ultrasonic air temperature sensor, intended to help improve automatic climate control (ACC), has been demonstrated in a vehicle. Ideally, ACC should be based on inputs correlated with thermal... (View Full Article)
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A new optimal control strategy for dealing with braking actuator failures in a vehicle equipped with a brake-bywire and steer-by- wire system is described. The main objective of the control algorithm... (View Full Article)
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Objective: A friction rollover test was conducted as part of a rollover sensing project. This study evaluates vehicle and occupant responses in the test.... (View Full Article)
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A steering wheel is an indispensable component in an automobile. Although the steering wheel was invented about one hundred years ago and its structure has since become more and more complex with... (View Full Article)
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This paper presents three sub-models of production Engine Management Systems software for turbocharged engines; 1) new load variable for volumetric efficiency modelling, 2) new pumping torque model,... (View Full Article)
(Contract Manufacturing and Fabrication)
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A clear understanding of Customer and User requirements is essential to successfully develop, design, build, test and produce components and systems for Customer Programs. Systems Engineering (SE) is... (View Full Article)

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