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NEXT GENERATION POWER DISTRIBUTION UNIT IN WIRING HARNESS

Mahindra & Mahindra, Ltd.-Boobala Krishnan D, Himanshi Dua, T Vijayan, Apurbo Kirty
  • Technical Paper
  • 2019-28-2571
To be published on 2019-11-21 by SAE International in United States
Keywords – Miniaturization, Low Profile (LP) Relays, Low Profile (LP) Fuses, Fuse box, Wiring Harness Research and/or Engineering Questions/Objective With the exponential advancement in technological features of automobile’s EE architecture, designing of power distribution unit becomes complex and challenging. Due to the increase in the number of features, the overall weight of power distribution unit increases and thereby affecting the overall system cost and fuel economy. The scope of this document is to scale down the weight and space of the power distribution unit without compromising with the current performance. Methodology Miniaturization involves replacing the mini fuses and J-case fuses with LP mini and LP J-case fuses respectively. The transition doesn’t involve any tooling modification and hence saves the tooling cost. Furthermore, to address stringent weight and space targets, LP mini fuses and LP J-case fuses were further replaced with micro-2 fuse and M-case fuse respectively. Similarly, micro relay and mini relay were replaced with Ultra micro and High current micro relay respectively. Results We took MPV segment vehicle for our initial testing and validation…
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Performance Gains of Load Sensing Brake Force Distribution in Motorcycles

Force Motors-Apurva Chakraborty
  • Technical Paper
  • 2019-28-2426
To be published on 2019-11-21 by SAE International in United States
Commercial motorcycles and scooters incorporate independent circuits for front and rear brake actuation, thus precluding load dependent brake force distribution. In all cases of manual brake force modulation between the front and rear wheels, there is poor compensation for the changes in wheel loads on the account of longitudinal weight transfer, thus making it is challenging to provide an adequate braking force to each wheel. The ratio in which the braking force should be distributed between the front and the rear wheels is dependent on the motorcycle geometry, weight distribution, mechanical sizing of braking system components, and is a variable based on the deceleration. This connotes that a fixed value of front and rear braking forces can be optimized for only a narrow range of motorcycle’s deceleration. Maximum braking performance occurs just prior to wheel lockup, as a sliding tire provides less grip than a rolling tire. This is also the scenario when both the tires are doing the maximum work in decelerating the motorcycle. Therefore, an optimal brake force distribution is one that locks…
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Development of low cost life saving system for Automotive vehicles during Road Accidents.

Tata Technologies, Ltd.-Sachin Madhukarrao Pajgade, Aashish Bhargava
  • Technical Paper
  • 2019-28-2460
To be published on 2019-11-21 by SAE International in United States
According to research study 45% of death cause due to not getting help on time to the injured person. Research has proven that if injured person is not found any option of help then they also loose the power to fight such critical situation due to psychological effect. When vehicle met accident, people are not getting on time support, this delay is the major cause of death in developing nations. Presently there is no any robust system available in market for passenger & commercial vehicles which helps to provide on time help to the injured persons & saves human life. In current situation low cost life saving device is need of our society. This paper deals with the design & development of the low cost-life saving device. This paper also comprises the scenario when any vehicle meet an accidents within certain speed limit then how the intelligent life saving device will work & save the life's. Further it explains the type of life saving device design, logical programming and system packaging. The system has been…
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Improved update over-the-air solution through standardization of ‘software/firmware package format and flash jobs’

Elektrobit India-Pavithra Kumaraswamy
  • Technical Paper
  • 2019-28-2435
To be published on 2019-11-21 by SAE International in United States
This paper investigates and proposes the possibilities of standardizing the software/firmware package format and flash jobs in order to provide the possibility of productizing the update-over-the-air solution regarding on-board vehicle components and make use of it in all OEMs with minimum configuration changes and customization. The update-over-the-air solution in the automotive sector is provided by various suppliers and needs to be customized to meet various OEMs requirements. Possible Variants of OEM requirements are: • Variant 1 o Customer Portal + Backend + vehicle on-board components solution from supplier • Variant 2 o Customer Portal + Backend solution from OEM o Vehicle on-board components from supplier • Variant 3 o Backend from OEM o Customer Portal + vehicle on-board components from supplier ODX, VBF, and many other formats from OEMs include software/firmware packages. With variant 1, these different formats are converted into one supplier proprietary format and is saved in backend and understood by the vehicle on-board components for re-programming of target ECUs. With variant 2 and variant 3, these different OEM formats have to be…
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Investigation of Dry Sliding Wear Behavior of AA8011 Reinforced with Zirconium Oxide and Aluminium Oxide Hybrid Composites Processed through Multi-Direction Forging

Sri Krishna College of Engg. and Tech.-Sathishkumar Kuppuraj, Soundararajan Ranganathan, Sathishkumar Aruchamy, Shanthosh Gopal
Published 2019-10-11 by SAE International in United States
The Cardinal goal of this research work is to fabricate hybrid composites of AA8011 with reinforcement particles of Zr2O3 and Al2O3 which was taken in equal (5wt%) weight percentage. The hybrid composites were cast in a square shape (50x50x50 mm size) under the optimal stir casted process parametric condition, further, it was taken for the forging process. The prepared specimens were induced for uni-direction (x), bi-direction (x and y) and multi-direction (x,y, and z) forging route and the response of microhardness of 53, 68, 81 and 96 VHN were obtained respectively due to microstructural phase changes with an even distribution of particles in the matrix. Thus, the tribological properties of prepared specimens were tested using pin-on-disc Tribometer at room temperature under dry sliding condition of load 5,10,15,20 N and by adjusting the sliding speed as 266 and 531 rpm respectively. The outcomes uncovered all the specimens that the wear rate increments with an increase in load and coefficient of friction show an increase at most extreme load conditions. Wear rate increments with increment in the…
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A Study on the Development of an Effective Framework for Implementation and Sustenance of an Obsolescence Material Management System in an Aerospace Supplier Manufacturing Industry Environment

GITAM School of Technology-Mani Rathinam Rajamani, Eshwaraiah Punna
Published 2019-10-11 by SAE International in United States
Obsolescence Material management plays an important and vital role in today’s modern Aerospace manufacturing, Aerospace Maintenance, Repair and Overhaul industry as well as Aerospace Distributors. Aerospace vehicles have a considerable longer product life-cycle when compared to any other consumer goods like automobile and electronics industry. With the advent of new, disruptive technologies, many sources and supplies of materials including COTS and Standard catalogue parts, components and goods, which are widely used in an Aerospace manufacturing environment, are diminishing at a considerable rate and thus result in their obsolescence before the end disposal of the product life cycle. It is one of the leading causes to the sale of counterfeit and fraudulent parts and components, which can result in considerable deterioration of Quality and Cost to Customer. This technical paper emphasizes on the need for implementation of an effective Obsolescence management framework which an Aerospace company can follow through defining, deploying and sustaining Obsolescence Management through Policy, Procedures, Process and People methodology to be followed at manufacturing, maintenance and to identify proactively, notify and mitigate the…
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A Parametric Study on Electro Thermally Actuated Novel Compliant Microgripper

NIT-Kishor Bharadwaj, Thillaigovindan Ramesh
VIT-Renold Elsen
Published 2019-10-11 by SAE International in United States
At Micron-level actuation, thermal gripper provides greater forces when compared with electrostatic mode of actuation. To accomplish larger translations at minimal voltages, the Electro thermal actuation is applied. The mechanism of selective non-uniform Joule heating; which helps in thermal expansion of the design owing to restraints. The gripper proposed in this work is analyzed using FEA and is fabricated using Aluminum and stainless steel to achieve quicker response. The in-plane displacement, strain, stress, current density and temperature have been predicted for different magnitudes of current-voltage combination that the gripper sustains. It was found that, micro gripper performs well under 1v giving 60 μm displacement. Parametric sweep was carried out using commercially available FEA software package; COMSOL Multiphysics, to study and asses the outcome of various parameters on the performance of the gripper. It has been observed that the displacement increases with the increase in applied voltage.
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Defeating Commercial Drone Threats with Open-Source SDR

  • Magazine Article
  • TBMG-35353
Published 2019-10-01 by Tech Briefs Media Group in United States

It’s nearly impossible to look at technology news without seeing an article about drones. Whether detailing how Amazon wants to use drones to deliver packages or revealing amazing aerial video of drones following Olympic snow-boarders, commercial drones are ubiquitous. Drone emergence has benefited many applications including sports broadcasting and wildlife preservation wilderness surveys. Offering powerful, intelligent software, drones are becoming less expensive and easier to use, with substantial operating range.

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The Future of 3D Printing: From Prototyping to Production

  • Magazine Article
  • TBMG-35370
Published 2019-10-01 by Tech Briefs Media Group in United States

Additive manufacturing, better known as 3D printing, has been evolving for the last 30 years. Now it’s set to enter the mainstream, and evolving technology including new printers and 3D printed metals have the potential to transform manufacturing and logistics across multiple sectors.

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Defeating Commercial Drone Threats with Open-Source SDR

Aerospace & Defense Technology: October 2019

  • Magazine Article
  • 19AERP10_06
Published 2019-10-01 by SAE International in United States

With the emergence of highly capable, low-cost, wirelessly controlled drones, bad actors can easily execute disruptive operations. Such incidents have created a need for drone defense systems that rapidly evolve with ever-increasing threat frequency and sophistication.

It's nearly impossible to look at technology news without seeing an article about drones. Whether detailing how Amazon wants to use drones to deliver packages or revealing amazing aerial video of drones following Olympic snowboarders, commercial drones are ubiquitous. Drone emergence has benefited many applications including sports broadcasting and wildlife preservation wilderness surveys. Offering powerful, intelligent software, drones are becoming less expensive and easier to use, with substantial operating range.

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