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The Road to Automobility

Autonomous Vehicle Engineering: December 2019

Lawrence D. Burns
  • Magazine Article
  • 19AVEP11_03
Published 2019-11-01 by SAE International in United States

The era of electrified, self-driving vehicles is upon us. Engineers are key to the transformation - with much hard work still to be done.

In 1911, eight years after the Wright Brothers flew the first airplane, French general Ferdinand Foch dismissed the new technology. “Airplanes are interesting scientific toys,” he scoffed, “but they are of no military value.” World War I and the wave of aeronautical progress it triggered would prove Foch wrong. Today, automobility is the subject of a “hype or ripe” debate similar in spirit to what the airplane experienced in its nascent years.

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Parametric Modelling & High-Fidelity Algorithms for Vehicle Weight Estimation for Optimized Concept Vehicle Architecture

Mahindra & Mahindra, Ltd.-Rathish Chandar Kanthallu, Nagaraju Kata, Samir Rawte, Lakshmanprasad Murugesan, Jeyevijeyan Ramakrishnan Sheerkazhi, Yuvaraj Duraiswamy
Published 2019-10-11 by SAE International in United States
The concept definition phase of typical vehicle development focuses on the architecture definition and optimization based on different constraints/requirements. With the focus on Sustainability, the architecture optimization process must include “Light-weighting” as an optimization criterion. With only concept vehicle architecture available, the vehicle weight estimation becomes judgmental & inaccurate. This paper aims to address this deficiency with a new analytical approach for vehicle weight estimation. The new approach for vehicle weight estimation is a “bottom-up” approach using parametric models for each system weight with the inputs being the relevant vehicle specifications driving the system engineering. For size/shape-driven (rather than functional) systems, the models are content-based & segment-based. The parametric models are then iterated for multiple architecture concepts & specifications and the optimum concept (meeting all functional & business constraints) is chosen. The parametric models are based on extensive benchmarking studies and regression analyses. Both single-parameter & multiple-parameter regressions are used for parametric modelling. The parameters selection is carried out such that the relationships have sound technical logic and ensuring the (curve) fits always have regression…
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Rectangular Cross Section Polymeric Sealing Rings

Automatic Transmission and Transaxle Committee
  • Ground Vehicle Standard
  • J2310_201910
  • Current
Published 2019-10-09 by SAE International in United States
The purpose of this SAE Recommended Practice is to establish guidelines for the automatic transmission and hydraulic systems engineer to design rectangular cross section seals for rotating and static grooved shaft applications. Also included are property comparisons of polymeric materials suitable for these applications. Historically, material covered in this document is not intended to include aluminum contact applications.
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EO/IR Maritime Payload

  • Magazine Article
  • TBMG-35352
Published 2019-10-01 by Tech Briefs Media Group in United States

CONTROP Precision Technologies Ltd. Lanham, MD 571-331-0042

Autonomous Multi-Sensor Maritime Awareness System

  • Magazine Article
  • TBMG-35364
Published 2019-10-01 by Tech Briefs Media Group in United States

BIRD Aerosystems Herzliya, Israel

Fundamental Concepts of Turbocharging Modern Engines Current Practices and Trends Web Seminar RePlay

  • Webinar Recordings
  • PD331858
Published 2019-09-19
Turbocharging is an integral part of many internal combustion engine systems. While it has long been a key to diesel engine performance, turbocharging is increasingly seen as an enabler in meeting many of the efficiency and performance requirements of modern automotive gasoline engines. This replay discusses the basic concepts of turbocharging and air flow management of four-stroke engines. It explores the fundamentals of turbocharging, system design features, performance measures, and matching and selection criteria. Topics include spark ignition and diesel engine systems, the impact of different applications. The course also covers the interaction between turbocharging and engine systems and the impact on performance, fuel economy, and emissions. Developments in turbocharging technology are also covered.By participating in this course, you will be able to: Identify the basics of how a turbocharger works, how to measure the appropriateness of a turbocharger, and how to select and match a turbocharger to the needs of your powertrainEstimate the impact of turbocharging on performance and emissionsRecognize potential issues such as packaging, noise, driveability, reliability, and durabilityList the latest developments in…
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Step & Repeat: Reduce Derivative Aircraft Development Risk with Design Reuse

Mentor-Muhammad Askar
Published 2019-09-16 by SAE International in United States
The complex and risky process of designing derivative aircraft, especially when it comes to electrical systems, can be a daunting task at best. There are a number of design strategies that can be employed to mitigate risk and increase the overall efficiency. Quite simply, the current methods of manual processes, design and integration approaches that were optimized from mechanical approaches, are no match for today’s complexities.One method gaining significant traction is to employ a central database serving global interface definitions for the entire design process. Automation through generative design minimizes manual intervention and repetitive work. Furthermore, detecting changes through design rule checks allows system engineers to verify their designs, capturing both inadvertent and planned changes. The ability to instantly update the design content from the new definition streamlines the change management process.Employing these technologies in a digital, connected thread, ensures that intelligent information is leveraged at every step along the way from aircraft conception, realization, and finally to utilization - thereby minimizing risk and maximizing efficiency.
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EDITORIAL: There is no substitute for ‘Automotive Grade’

Automotive Engineering: September 2019

Editor-in-Chief-Lindsay Brooke
  • Magazine Article
  • 19AUTP09_05
Published 2019-09-01 by SAE International in United States

When you get in a vehicle and push the ‘start’ button, you're betting that the machine will get you to your destination safely and reliably, regardless of the driving conditions. Lives are at stake the moment you lift off the brake pedal.

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System Configuration Management Implementation Template (Oriented for a U.S. Military Contract Environment)

G-33 Configuration Management
  • Aerospace Standard
  • GEIATB0002A
  • Current
Published 2019-08-14 by SAE International in United States
No Abstract Available.
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Communication Transceivers Qualification Requirements - LIN

Vehicle Architecture For Data Communications Standards
  • Ground Vehicle Standard
  • J2962/1_201907
  • Current
Published 2019-07-18 by SAE International in United States
This document covers the requirements for transceiver qualification. Requirements stated in this document will provide a minimum standard level of performance for the LIN transceiver block in the IC to which all compatible transceivers shall be designed. No other features in the IC are tested or qualified as part of this recommended practice. This will assure robust serial data communication among all connected devices regardless of supplier. The goal of SAE J2962-1 is to commonize approval processes of LIN transceivers across OEMs. The intended audience includes, but is not limited to, LIN transceiver suppliers, component release engineers, and vehicle system engineers.
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