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Vehicle Interior cleanliness tracker

Aptiv Components India Pvt Ltd-Anitha Loganathan
Aptiv Components India Pvt, Ltd.-Vijayalakshmi kr
  • Technical Paper
  • 2019-28-2466
To be published on 2019-11-21 by SAE International in United States
The future of mobility is being driven towards fully autonomous driving. As a result, people spend majority of the time in vehicles for chores other than driving. The focus of automotive makers shifts towards providing best-in-class passenger comfort. One of the least focused area in passenger comfort is vehicle interior cleanliness which requires periodic human intervention. An intelligent vehicle can outsmart a human by self-caring to maintain the cleanliness elements on floor, seat and roof. This paper addresses subjects like wetness, dirt and stains in the vehicle interior utilizing the capability of Interior sensing platform. An internally mounted camera in the vehicle can capture images of the interior and apply image processing techniques to identify the subjects mentioned above. The wetness on the floor mats can lead to moldy odor, corrosion, failure of the electronic components in the car. Over a period, the vehicle upholstery or seats absorb the dirt and stains and lead to foul smell. HVAC can be used for drying the interior as appropriately detected by the system. A modern system to…
 

Prototype design of a small scale thermionic energy generator for waste heat recovery in hybrid electric vehicle.

BSDU-Kantaprasad Kodihal, Ankur Sagar
  • Technical Paper
  • 2019-28-0027
To be published on 2019-10-11 by SAE International in United States
The sustainability of energy generation is primarily based on the effectiveness of the methods used for minimizing the wastes and optimum utilization of available energy resources. Mobility and its ease is therefore being an essential component of development. Automotive technology is an area where methods are explored in recent times to provide sustainable solution for reduction of fuel consumption and carbon emission by switching to hybrid technology and electric vehicles where regeneration of energy plays an important role. At present the research is focused on achieving methods of solid state conversion of heat into electricity but its limited to thermoelectric which has lower conversion efficiency. A comparative analysis of the direct energy convertors shows that thermionic energy conversion stands better with a higher conversion efficiency. Very close and non contact type of electrode spacing having electrical insulation provided with vacuum or inert gas environment is the basic requirement while designing any thermionic energy generator. Identifying these key research challenges, this article discusses a design of a prototype small scale thermionic generator. The paper hence explores…
 

Experimental Investigation of Silicon Carbide Nanoparticles Reinforced Magnesium Alloy (AZ91E) Metal Matrix Composite by Vacuum Stir Casting Method

Centre for Automotive Materials, SRMIST-Chandradass Jeyaseelan, Baskara Sethupathi Paramathma
PRIST-Thirugnana Sambandham Thangavel, Kannan Mahadevan
  • Technical Paper
  • 2019-28-0169
To be published on 2019-10-11 by SAE International in United States
In the present investigation silicon carbide nanoparticle reinforced magnesium alloy (AZ91E) composites were prepared by vacuum stir casting process in an inert atmosphere. Required amount of silicon carbide nanoparticle was added to AZ91E molten melt with constant stir speed of 600 rpm and vacuum pressure of 1 lpm so that the final composite contains 5, 7.5 and 10 wt.% SiC nanoparticle. The prepared composite was subjected to mechanical and microstructure studies. The addition of silicon nanoparticle enhances the mechanical properties compared to conventional magnesium alloy. Microstructure studies reveal uniform distribution of silicon carbide in magnesium alloy matrix.
 
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Steel, Corrosion-Resistant, Bars, and Forgings, 10Cr - 5.5Ni - 14Co - 2Mo - 1W (0.19-0.23C), Vacuum Induction Melted, Vacuum Arc Remelted, Normalized, Annealed

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5922C
  • Current
Published 2019-07-24 by SAE International in United States

This specification covers a corrosion-resistant, premium aircraft-quality alloy steel in the form of bars, forgings, and stock for forging.

 
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Alloy, Corrosion-Resistant, Round Bars, 20Cr - 35Ni - 35Co - 10Mo, Vacuum Induction Plus Consumable Electrode Vacuum Remelted, Solution Heat Treated, Work Strengthened, and Aged

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5845K
  • Current
Published 2019-07-24 by SAE International in United States

This specification covers a high-strength, corrosion-resistant alloy in the form of bar up to 1.75 inches (44.4 mm) in diameter (see 8.2 and 8.7).

 
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Alloy, Corrosion-Resistant, Round Bars, 20Cr - 35Ni - 35Co - 10Mo, Vacuum Induction Plus Consumable Electrode Vacuum Remelted, Solution Heat Treated and Work Strengthened

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5844J
  • Current
Published 2019-07-24 by SAE International in United States

This specification covers a high-strength, corrosion-resistant alloy in the form of bars up to 1.75 inches (44.4 mm) in diameter (see 8.2 and 8.7).

 
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Heat Treatment of Parts in a Vacuum

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS2769C
  • Current
Published 2019-07-12 by SAE International in United States

This specification establishes the requirements and procedures for heat treating parts in vacuum/partial pressure and shall be used as a supplementary document to primary heat treating specifications as applicable.

 

Groove Design - Metal Face Seal

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AIR1108A
  • Current
Published 2019-06-06 by SAE International in United States
Groove designs presented herein are applicable for use with machined or formed metal seals which are similar in configuration to those shown in figure 3, which operate under internal pressure or in vacuum service and which have been specifically qualified or recommended by the purchaser or the manufacturer for use with this AIR. They are also applicable for use with metal o-rings (e.g., MS9142, MS202 thru MS9205) where interchangeability with machined or formed metal seals is desired. For metal o-ring groove designs where inter-changeability is not a requirement refer to ARP 674.
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Mitigation of Community Noise from a Vacuum Excavator Using Simulations

Charles Machine Works-Vernon Stellman, Craig Clevenger, Jeff Smith
Dassault Systemes Simulia Corp.-Rahul Sanal, Karthik Mahadevan Muthuraman, Robert Powell
Published 2019-06-05 by SAE International in United States
Off-highway equipment operates in residential communities and must meet their radiated noise targets to be compliant with noise regulations and to be competitive in the marketplace. Traditional find and fix noise testing of late-stage prototype designs may cause launch delays, with intense time pressures that often result in missed opportunities to create excellent products with good value. Accurate simulation of noise from these machines allows noise targets to be assessed at each stage of product development, giving engineers time to develop low noise products without adding excessive manufacturing cost. Simulation of an early prototype of a new vacuum excavator showed excessive levels of radiated noise in two different frequency ranges. Further investigation of the simulation results of these two spectrum ranges indicated different noise mechanisms producing the excessive noise levels. An acoustic resonance was excited in the exhaust flow downstream of a silencer by highly vortical flow through a ninety-degree elbow. Broadband flow noise was also being generated downstream of this silencer, in a higher frequency range. Solutions to the two separate noise issues were…
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Brake Vacuum Booster Characterization

Carr Engineering, Inc.-James Walker, Robert Rucoba, Dan Barnes, Steven Kent
Published 2019-04-02 by SAE International in United States
Brake vacuum booster characteristics are of great importance to understanding overall brake system operation in light vehicles so equipped. In recent years, engineering reports relevant to traffic crash reconstruction have discussed, among related areas, the operation of brake booster systems at high applied brake pedal force levels and with various levels of vacuum available within the booster. A vehicle-testing framework is presented for characterizing and understanding the operation of a vacuum booster with pedal force ranging above the vacuum runout point, as well as booster operation relative to varying levels of available vacuum and patterns of depletion of stored vacuum. Concepts are illustrated with measurements of exemplar vehicles. The objective of this paper is to promote improved understanding of brake booster operation and to advance more precise articulation of related concepts within the crash reconstruction community.
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