scholarly journals A computer-assisted stand for testing transistors used in the automotive industry

2018 ◽  
Vol 19 (12) ◽  
pp. 729-733
Author(s):  
Zbigniew Wołczyński ◽  
Marek Stępniewski
Keyword(s):  
Automotive Industry ◽  
Computer Assisted ◽  
Automotive Applications ◽  
Electronic Element

The article discusses the transistor as an electronic element increasingly used in the automotive industry. The types, types and ways of selecting and diagnosing transistors in terms of automotive applications are presented. The most important features of the transistor in automotive applications are indicated. Methods of measuring the most important transistor parameters for automotive applications, including the use of computer measuring technology in quickly obtaining significant transistor characteristics are shown.

PoP Technology for the Automotive Industry

2014 ◽  
Vol 2014 (1) ◽  
pp. 000081-000085
Author(s):  
Jaimal Williamson ◽  
Kurt Wachtler ◽  
David Chin ◽  
Mike Pierce
Keyword(s):  
Automotive Industry ◽  
Memory Performance ◽  
Automotive Applications ◽  
Defect Level ◽  
Packaging Technology ◽  
Package Design ◽  
Surface Mount ◽  
Board Level ◽  
Performance Surface ◽  
Board Level Reliability

Package-on-Package (PoP) technology has been in production for commercial and portable electronic applications for many years. The key challenge for PoP in automotive applications is meeting the aggressive defect level requirements. The need for PoP has historically been driven by mobile and tablet applications and an increased demand for more processor and memory performance within smaller spaces. With the maturity and excellent historical performance of PoP technology used with TI OMAPTM processor products, PoP can now be introduced as a reliable packaging technology in the automotive industry. This paper will describe the work involved in the enablement of commercial PoP technology into the automotive industry. The challenges and requirements regarding package design, warpage performance, surface mount (SMT) characterization, and board-level reliability (BLR) performance will all be explained.

scholarly journals Development of an Electrical Resistance Sensor from High Strength Steel for Automotive Applications

Sensors ◽  
2019 ◽  
Vol 19 (8) ◽  
pp. 1956 ◽  
Author(s):  
Kosec ◽  
Kuhar ◽  
Kranjc ◽  
Malnarič ◽  
Belingar ◽  
...  
Keyword(s):  
Automotive Industry ◽  
Electrical Resistance ◽  
High Strength Steel ◽  
High Strength ◽  
Measured Data ◽  
Microstructural Properties ◽  
Automotive Applications ◽  
Data Logger ◽  
Corrosion Sensor ◽  
Monitoring Process

This work focuses on a demonstration of the monitoring of corrosion processes taking place in high strength steel in automotive applications. This is performed by means of a corrosion sensor, which operates as an electrical resistance sensor. It was developed from the same type of material that is used for the high-strength steel parts produced in the automotive industry. Using the sensor, real time corrosion processes can be measured. It is attached to a location inside the vehicle’s engine and is equipped with a data logger, which enables wireless transfer of the measured data. In this study the development, operation, and evaluation of the monitoring process are presented. Corrosion estimation is verified by means of electrochemical methods. A metallographic investigation was included in order to verify the similarity between the microstructural properties of the sensor and those of the as-received high-strength steel sheet.

Injection-molded PP composites reinforced with talc and nanoclay for automotive applications

2019 ◽  
Vol 33 (11) ◽  
pp. 1478-1498 ◽  
Author(s):  
Mohammadreza Nofar ◽  
Elif Ozgen ◽  
Burcu Girginer
Keyword(s):  
Automotive Industry ◽  
Crystallization Behavior ◽  
Charpy Impact ◽  
Processing Parameters ◽  
Mechanical And Thermal Properties ◽  
Automotive Applications ◽  
X Ray Diffraction ◽  
X Ray ◽  
Injection Molded ◽  
Two Alternatives

In this study, a commercially available polypropylene (PP) copolymer with 30-wt% talc was used as a reference material. Two different PP copolymers with 30- and 20-wt% talc were also taken as alternatives. Despite the reference PP compound, the other two alternatives are still under development and never used for the production of any exterior trim part in automotive industry. These three PP compounds were injection molded with fixed mold and barrel temperatures. Then, the samples were molded at different mold and barrel temperatures to investigate the effects of processing parameters on the mechanical and thermal properties of the final product. Finally, the effect of addition of 1-, 3- and 5-wt% nanoclay on the final properties of the PP with 20-wt% talc was explored. Differential scanning calorimeter was used to analyze the crystallization behavior of the samples. Tensile, bending, and Izod and Charpy impact tests were performed on these samples. Heat deflection temperatures and Vicat softening points were also measured. The X-ray diffraction analysis was performed to see the dispersion of the nanoclay in the PP matrix.

Additive Tooling for Tube Hydroforming

2013 ◽  
Vol 572 ◽  
pp. 269-272
Author(s):  
Shwe Pyi Soe ◽  
Daniel Roy Eyers ◽  
Chi Hieu Le ◽  
Awanis Romli
Keyword(s):  
Automotive Industry ◽  
Tube Hydroforming ◽  
Automotive Applications ◽  
The Creation ◽  
Rapid Manufacture ◽  
Operational Issues ◽  
Welding Processes

The use of tube hydroforming in manufacturing is increasing in popularity, particularly in automotive applications where it offers numerous cost and well-recognized performance advantages over conventional stamping and welding processes. In this paper, the use of indirect Additive Tooling is explored in the creation of tool inserts to be used in the production of exhaust manifolds for the automotive industry. The principal focus of this research concerns the identification of operational issues arising from the exploitation of Additive Tooling, together with the suggestion of a number of techniques and solutions which may be applied to mitigate the problems inherent in the rapid manufacture of tube hydroforming tools.

Finite Element Simulations of Joints Used in the Automotive Industry

Manufacturing ◽  
2002 ◽  
Author(s):  
Rishikesh Bhalerao ◽  
Brad Heers ◽  
Mark Bohm ◽  
Marc Schrank
Keyword(s):  
Finite Element ◽  
Best Practices ◽  
Automotive Industry ◽  
Functional Performance ◽  
Effective Means ◽  
General Purpose ◽  
Vehicle Body ◽  
Finite Element Code ◽  
Automotive Applications ◽  
Modeling Techniques

Finite element-based simulations of vehicle body systems are an effective means of optimizing a design. However, body systems often consist of components from a variety of sources. Hence, accurate modeling requires a robust set of analysis functionality for joining such components. Joints—such as welds, bolts, rivets, clinches, and adhesives—present unique challenges to the analyst. Despite the critical influence joints have on functional performance, there is little information on best practices for modeling such connections. This paper presents a survey of some of the approaches available in ABAQUS, a general-purpose commercial finite element code, and discusses various applications of these techniques through a series of case studies. While the modeling techniques discussed in this paper have been motivated largely by automotive applications, they are also applicable to other areas such as aerospace structures.

Warranty Costs Assessment for Automotive Applications

2012 ◽  
Vol 433-440 ◽  
pp. 6108-6115
Author(s):  
Zdenek Vintr ◽  
Michal Vintr
Keyword(s):  
Mathematical Model ◽  
Automotive Industry ◽  
Two Dimensional ◽  
Automotive Applications ◽  
Product Reliability ◽  
Warranty Period ◽  
Warranty Costs ◽  
The Mathematical Model ◽  
The Relationship

The article deals with current problems of warranty costs in automotive applications. The two-dimensional warranty widely used in automotive industry is presented. The relationship between warranty costs and product reliability is also presented. The article analyses problems with estimation of a number of failure occurrence over a warranty period and estimation of costs related to repair failures. The mathematical model enables to predict warranty costs for two-dimensional warranty is presented. The article also deals with problems of estimation of an instant of warranty period expiration and demonstrates its estimation on an example of a vehicle.

Specialty Elastomers for Automotive Applications

1998 ◽  
Vol 71 (3) ◽  
pp. 449-519 ◽  
Author(s):  
Kinro Hashimoto ◽  
Akio Maeda ◽  
Kiyoshi Hosoya ◽  
Yoshihiro Todani
Keyword(s):  
Automotive Industry ◽  
High Performance ◽  
Chemical Properties ◽  
Polymeric Materials ◽  
Low Permeability ◽  
Automotive Applications ◽  
Gasoline Engines ◽  
Automotive Components ◽  
Automotive Parts ◽  
The Many

Abstract Various elastomers are used for automotive components because of their physical properties, chemical properties, durability, etc. There are belts to transmit energy, seals to support radial or reciprocating parts, gaskets and O-rings to seal in oils and fuels, hoses to deliver liquid and gases and diaphragms to control them. Figure 1 shows one example of elastomers for gasoline engines reported by Akema and Yoshida. Rubbers are soft polymeric materials having generally 100 MPa of Young's modulus (shown in Figure 2) for the normally applied temperature range. They are widely used for the buffer position between high modulus materials such as metals, plastics, glasses, etc., in energy transmission, liquid delivery, and energy isolation positions. The materials are selected for their resistance to fuels, oils, and heat; as well as their cold flexibility and sealing ability. However, different materials are sometimes selected for the same device depending upon such factors as applied temperature, class of fuels and oils, and the engineering design of the car. The many problems confronting the automotive industry these days are shown in Table A-I. They are roughly classified into two areas: environmental and safety. Elastomers for automotive applications have been changing to solve many kinds of problems. Table A-II shows the trends of rubber materials being used for automotive parts. High performance rubbers, which have heat resistance, long life, low permeability, good abrasion resistance, and so on, are all being adopted.

The Potential of Using Bio Plastic Materials in Automotive Applications

2019 ◽  
Vol 56 (4) ◽  
pp. 901-909
Author(s):  
Sorin Aurel RaȚiu ◽  
Alina Corina Zgaverdea
Keyword(s):  
Block Copolymer ◽  
Automotive Industry ◽  
Natural Fibers ◽  
Fiber Surface ◽  
Automotive Applications ◽  
Industry Standard ◽  
Pull Out ◽  
Plastic Materials

The purpose of this article is to present an overview of the trend of using, on a wider scale, plastics in the automotive industry. It is presented the realization of PLA-TPU-Blends with a biogenic mass greater than 90%, by mixing thermoplastic Polyurethan (TPU) with Polylactid-Acid (PLA) at IKT University of Stuttgart. In order to estimate the possibilities of use of bio-materials made from PLA and TPU, the properties were compared with standard thermoplastics such as Polypropylen (PP), Polyethylen (PE), Polyamid (PA), as well as with better performing materials from the engineering thermoplastics range. PBT, ASA and their derivatives. Notable are the properties of PLA-TPU-Blends compared with standard thermoplastics PP, PE, PA. The results show PLA-TPU-Blends superiority in Yeld strength compared to the types of Polypropylene homopolymer (PP-H), block-copolymer (PP-B) and randompolymer (PP-R), the properties being adaptable by flexible modification of the ratio between the components, according to the requirements of the application. Using suitable additives to make components compatible, there were created blends which were partially cross-linked, but their properties remain of thermoplast. When reinforcing PLA-TPU-Blends with fibers (glass and natural), the components also react with the groups (-OH) on the fiber surface, thus making a good connection between fibers and blends, which prevents the so-called pull-out-effect. PLA-TPU-Blends reinforced with natural fibers can be used to make the interior body elements of vehicles. The paper also presents a comparison between bio-materials made at IKT University of Stuttgart with Polyethylen (PE) and other industry standard bio-materials.

scholarly journals Computer vision methods for automotive applications

2020 ◽  
Vol 30 (2) ◽  
pp. 74-81
Author(s):  
Aldo André Díaz ◽  
Paulo R. G. Kurka
Keyword(s):  
Computer Vision ◽  
Camera Calibration ◽  
Stereo Vision ◽  
Automotive Industry ◽  
Automotive Applications ◽  
Future Developments ◽  
Complex Problems ◽  
Recent Advances ◽  
Technological Developments ◽  
Measurement Devices

Recent advances in computer vision have favored technological developments in the automotive industry. In this work, we present methods relevant to the use of cameras as measurement devices in computer vision and their applications in the automotive industry. The methods are edge and ellipse detection, camera calibration, 3-D reconstruction and stereo vision. The applications include methods for detecting rims in automotive wheels, estimation of the calibration angles of vehicles and the reconstruction of a vehicle's trajectory using stereo vision. The results showed the potential of computer vision methods to solve complex problems in the automotive industry. In conclusion, a set of techniques and applications of computer vision in the automotive industry are presented in order to motivate future developments in this and other related areas.

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