Display:

Results

Viewing 1 to 30 of 3603
2016-11-08
Technical Paper
2016-32-0020
Balasubramanian Thiruvallur Loganathan, Srivenkata Subramani Narasimhan, Lakshminarasimhan Varadha Iyengar, Ajith Kumar Sandur, Sudhagar Vediappan
Development of small air cooled motorcycles is ever challenging due to combination of customer expectation, regulatory requirements and cost factors. Achieving higher performance and emission standards means higher engine and parts operating temperature. Under these changes meeting durability targets at reasonable cost needs good understanding of material, surface treatment and tribological aspects. In this paper some of the surface and process improvements done to reduce wear in engine valves is discussed in detail. Design of engine valves shall ensure meeting thermal, mechanical strength requirements wear and durability targets. Surface treatments, coating, surface finish and also use of special materials in tip, valve stem, seat ensures higher durability; low wear in valve and interfacing parts. During new engine development process verification tests, wear observed in valve stem- valve guide, valve tip- screw interface.
2016-11-08
Journal Article
2016-32-0070
Toyofumi Tsuda, Kazuya Miura, Akio Hikasa, Keiji Hosoi, Fumikazu Kimata
Automotive catalyst has to have good durability, i.e. has to keep sufficient catalytic performance even after thermal degradation, therefore large amounts of PGMs such as Pt, Pd, and Rh, should be loaded on the catalyst substrate. Exhaust gas heat deteriorates catalyst due to sintering of the PGM particles and decrease of the active surface area. It is important to reduce PGM load, therefore many researchers have investigated to satisfy both PGM  load reduction and enough durability by using metal / support interactions, or controlling the nano-structure of metal particles. We found that Pt ions form platinum-hydrate cluster in hexahydroxyplatinate(IV) (Pt(OH)6・H2O) nitric acid solution, and the Pt-hydrate cluster size can be controlled by Pt and nitric acid concentration, and solution temperature.
2016-09-22
Article
The automotive cyber wars are just getting started. Regardless of what side of the battle you’re on, there are valuable insights into the other guy’s strategies and tactics in an excellent new book, The Car Hacker's Handbook .
2016-09-20
Article
While OEMs wait for NHTSA's V2X mandate they are discussing whether broad usage can be achieved without regulations.
CURRENT
2016-09-20
Standard
AS9100D
This standard includes ISO 9001:2015 quality management system requirements and specifies additional aviation, space, and defense industry requirements, definitions, and notes. It is emphasized that the requirements specified in this standard are complementary (not alternative) to customer and applicable statutory and regulatory requirements. If there is a conflict between the requirements of this standard and customer or applicable statutory or regulatory requirements, the latter shall take precedence.
2016-09-18
Technical Paper
2016-01-1928
ByeongUk Jeong, Sang Do Kwak, Cheol Ki Kim
Abstract Recently, upon customer’s needs for noise-free brake, carmakers are increasingly widely installing damping kits in their braking systems. However, an installation of the damping kits may excessively increase softness in the brake system, by loosening stroke feeling of a brake pedal and increasing compressibility after durability. To find a solution to alleviate this problem, we first conducted experiments to measure compressibility of shims by varying parameters such as adhesive shims (e.g., bonding spec., steel and rubber thickness), piston’s shapes (e.g., different contact areas to the shims), and the numbers of durability. Next, we installed a brake feeling measurement system extended from a brake pedal to caliper. We then compared experimental parameters with brake feeling in a vehicle. Finally, we obtained an optimized level of brake feeling by utilizing the Design for Six Sigma (DFSS).
2016-09-14
Article
A high-fidelity test bed is used to conduct cyber assurance testing for commercial vehicles including long-haul trucks.
2016-09-14
Article
Exa and Navistar researchers examine CFD simulations and wind-tunnel test results to increase the understanding of simulation methods used to reveal aerodynamic losses in the real-world environment.
2016-09-14
WIP Standard
J2999
This SAE Standard provides a method for determining the Effective Projected Luminous Lens Area (EPLLA) of a lamp function using design analysis. This standard was created to clarify and address how to determine EPLLA with traditional and new technologies. Lamps can be evaluated using the method described in SAE J3333; however, no lamp is subjected to both methods.
2016-09-14
WIP Standard
AMS2399B
This specification covers the engineering requirements for electroless deposition of nickel-boron on various materials and the properties of the deposit.
2016-09-14
WIP Standard
AMS2434E
This specification covers the requirements for the electrodeposited tin-zinc alloy plating.
2016-09-14
WIP Standard
AMS2433D
This specification covers the requirements for an electroless nickel-thallium-boron or nickel-boron deposit on various substrates.
2016-09-14
WIP Standard
AMS2444B
This specification covers the requirements for the application and properties of a titanium nitride coating on metal parts applied by physical vapor deposition (PVD).
2016-09-14
WIP Standard
AMS2465D
This specification covers the procedure for applying a disilicide diffusion coating to molybdenum alloy parts by the pack cementation method and the properties of the coating so deposited.
2016-09-14
WIP Standard
AMS2814H
This specification covers spooling and packaging of bare welding wire to ensure cleanliness and freedom from corrosion, spool sizes and weights of spooled wire, and package weights of cut lengths.
2016-09-14
WIP Standard
AMS2813H
This specification covers spooling and packaging of bare welding wire to ensure cleanliness but with minimum environmental protection, spool sizes and weights of spooled wire, and package weights of cut lengths.
2016-09-14
WIP Standard
AMS2488E
This specification establishes the engineering requirements for producing an electrolytic conversion (anodic) coating on titanium and titanium alloys and the properties of the coating.<
2016-09-14
WIP Standard
AMS2404H
This specification covers the requirements for electroless nickel deposited on various materials. This deposit has been used typically to provide a uniform build-up on intricate shapes, to improve wear and/or corrosion resistance, or to improve solderability on or for selected materials, but usage is not limited to such applications. The deposit has been used in service up to 1000 °F (540 °C) although wear and/or corrosion resistance may degrade as service temperature increases.
2016-09-12
Book
Lev Klyatis
The ability to successfully predict industrial product performance during service life provides benefits for producers and users. This book addresses methods to improve product quality, reliability, and durability during the product life cycle, along with methods to avoid costs that can negatively impact profitability plans. The methods presented can be applied to reducing risk in the research and design processes and integration with manufacturing methods to successfully predict product performance. This approach incorporates components that are based on simulations in the laboratory. The results are combined with in-field testing to determine degradation parameters. These approaches result in improvements to product quality, performance, safety, profitability, and customer satisfaction.
2016-09-10
Article
The connected car’s emergence is as disruptive for insurance companies as it is for automakers. Usage based insurance (UBI) holds a major role in future plans, prompting insurers to partner with OEMs and create apps that provide services that make UBI more attractive to customers.
2016-09-06
Article
To speed up noise and vibration data analysis for vehicle manufacturers and industrial machinery, Brüel & Kjær offers RT Pro 7.3 enhanced software for its Photon signal analyzer.
2016-09-02
Journal Article
2016-01-9111
Sebastian Brandes, Klaus-Dieter Hilf, Riccardo Möller, Tobias Melz
Abstract This paper makes a contribution toward a more efficient chassis durability process for the development of passenger cars, in which the simulation of relevant load data is a time-consuming part. This is especially due to the full vehicle model complexity which is usually determined by the demands of rough road simulations. However, for the load calculation on a racetrack, time saving model approaches that are more simplified might be sufficient. Our investigation comprises two levels of vehicle model complexity: one with all chassis parts modeled in a multibody system environment and one characteristic curve based model in an internal simulation environment. Both approaches consider an original chassis control system as a Software-in-the-Loop model. By the evaluation of real-world experiments the main influence factors in terms of durability are demonstrated. With the help of those highly sensitive durability criteria the measurement and simulation results are then compared.
2016-08-26
Article
dSPACE and BTC Embedded Systems offer a solution that improves test depth for the real-time validation of safety-critical applications with extension of classical test methods, easier compliance with safety standards and optimal integration and cross-platform use.
2016-08-26
Article
The push toward miniaturization in the electronics industry has left designers little or no room for test points, and the expansion of high frequency technologies has resulted in a growing need for test equipment that has the capability to verify these types of very small circuits.
2016-08-26
Article
CNH Industrial and AVL researchers used simulation, test bench, and road testing of a demonstrator vehicle with a WHR system to show significantly reduced fuel consumption.
2016-08-15
Article
The MicReD Power Tester 600A from Mentor Graphics Corp. tests electric and hybrid vehicle (EV/HEV) power electronics reliability during power cycling.
2016-08-14
Article
Using simulators for RDE testing is a new aspect for the technology, experts say.
2016-08-12
Article
Anritsu Co. (Richardson, TX) introduces Cellular Module Test Application (CMTA) software for its Signaling Testers MD8475A/B, which provides test cases to simplify testing chipsets and automotive-related telematics modules used in connected car designs and implementation.
CURRENT
2016-08-12
Standard
AS9015A
This SAE Aerospace Standard (AS) further defines the requirements for a delegation process identified in Aerospace Quality Management System (AQMS) standards (i.e., AS9100, AS9110, AS9120). This standard establishes minimum requirements for the delegation of product verification to an organization's suppliers; outlining requirements for the initial delegation (qualification/selection), maintenance, and removal/withdrawal of delegations.
2016-08-08
Article
The dangers of faulty car airbags recently have become all too clear. The product-liability issues associated with airbags and the largest, most costly automotive recall in history make it essential to characterize them thermally at high speeds and with high levels of sensitivity and accuracy.
Viewing 1 to 30 of 3603

Filter