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Changes in user experiences of electric vehicles

General Motors LLC-Pandurang Baliga, Tulasi KL
General Motors Technical Center India-Rudrappa Madagunki
  • Technical Paper
  • 2019-28-2489
Published 2019-11-21 by SAE International in United States
Research Objective The objective of the paper is to research what are the changes in experiences being brought about due to the advent of Electric Vehicles (EVs). EVs are silent, have less complex propulsion system, and have free space under the hood, amongst other things. Each change brings about both good and bad experiences across the spectrum of users. Some of the bad experiences can be safety incidents leading to death as well. Researching the areas that are harmful to end users, including pedestrians, will be our focus area. Methodology Our methodology will look at the changes at the vehicle architecture level which are inherent to the EV design. Research how are the experiences so far due to these changes. Are these just inconveniences or safety hazards? EVs have excellent NVH characteristics. A farmer may love a silent tractor, but a racing enthusiast may not like a relatively silent sports car. A silent armored vehicle may be what the army needs, but a silent car’s approach may be a last-minute surprise to an unsuspecting pedestrian,…
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SAE STANDARDS NEWS

Automotive Engineering: November/December 2019

  • Magazine Article
  • 19AUTP11_06
Published 2019-11-01 by SAE International in United States

SAE International's Global Ground Vehicle Standards group is planning a Legislation, Regulation, Enforcement Workshop in collaboration with the Washington Area New Automobile Dealers Association (WANADA) scheduled for January 21, 2020. This special event will be held just ahead of the 2020 SAE Government/Industry Meeting (GIM) in Washington, D.C., which is set for January 22-24.

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SUPPLIER EYE

Automotive Engineering: September 2019

  • Magazine Article
  • 19AUTP09_07
Published 2019-09-01 by SAE International in United States

The value - and risks - of Technology Testbeds

The world has been awaiting the arrival of the latest generation Chevrolet Corvette for some time. This past July, among much fanfare the mid-engined C8 (8th generation of this iconic nameplate) Stingray was revealed to the world. As an early owner of the C7, I know my car will be the last front-engined Corvette. And while some fellow enthusiasts are defiantly asserting that “real” Corvettes have their engines ahead of the driver, there is no looking back.

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Terms, Definitions, and Acronyms Counterfeit Materiel or Electrical, Electronic, and Electromechanical Parts

G-19T Terms and Definitions
  • Aerospace Standard
  • AIR6273
  • Current
Published 2019-07-30 by SAE International in United States
The SAE Aerospace Information Report (AIR) provides standardized terms, definitions, and acronyms that may be used in the G-19 and G-21 documents, unless otherwise specified in those documents. The SAE International series of documents that address the mitigation of suspect and counterfeit parts will reference this document in their respective Applicable Documents sections. This AIR is for use by organizations that procure and/or use materiel or EEE parts. The terms and definitions of this AIR are intended to be used in conjunction with other G-19 and G-21 standards.
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Development of an Accelerated Test for Tire Flat-Spotting

NissanTechnical Center North America-Farokh Kavarana, Scott Fritz
Published 2019-06-05 by SAE International in United States
Tire flat-spotting occurs when tires remain in a loaded condition without rolling for an extended period of time, and can be temporary or permanent depending on the length of storage, vehicle loading and environmental factors. Tire non-uniformity caused from flat-spots often induce shake and shimmy vibration in vehicles due to increased tire-wheel force variation input into the chassis. This results in increased warranty costs for OEMs and tire suppliers and customer dis-satisfaction in third-party quality surveys such as J. D. Power IQS. Flat-spotting is of particular concern for slow-moving vehicle inventory parked for long periods at plants and/or dealership lots.OEMs often stipulate or recommend inventory storage practices for dealers that require physical movement of vehicles at some set duration to reduce the risk of tires developing permanent flat-spots. OEMs also provide component level flat-spotting requirements to tire manufacturers during sourcing and specification timing to secure their internal requirements and targets. The study in this paper initially determined real-world flat-spotting levels on an actual vehicle during the adverse summer months of Arizona. Tire uniformity measured on…
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SUPPLIER EYE

Automotive Engineering: March 2019

Michael Robinet
  • Magazine Article
  • 19AUTP03_08
Published 2019-03-01 by SAE International in United States

We can debate how quickly the electrified, connected and autonomous future will arrive. But there is no questioning how profoundly its changes will impact the entire mobility ecosystem-OEMs, suppliers, dealers, finance, energy and road infrastructures, and customers.

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JAUS Messaging over the OMG Data Distribution Service (DDS)

AS-4JAUS Joint Architecture for Unmanned Systems Committee
  • Aerospace Standard
  • ARP6227
  • Current
Published 2018-08-23 by SAE International in United States
This document defines a standard representation of JAUS AS5684A message data in DDS IDL defined by the Object Management Group (OMG) CORBA 3.2 specification. This document does NOT address how JAUS transport considerations or JAUS service protocols are implemented on OMG DDS platforms.
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In-Network Processing on Low-Cost IoT Nodes for Maritime Surveillance

  • Magazine Article
  • TBMG-29086
Published 2018-06-01 by Tech Briefs Media Group in United States

The effective distribution of offensive weapon capabilities to naval units at the tactical edge is a critical focus for Navy leaders. A direct byproduct of this priority is the need to employ sensor and data collection systems that can effectively guide the targeting of that offensive capability. In the recent past, wireless sensor networks have received limited use in the maritime domain due to the exploratory nature of technology, high system complexity and the high cost of system deployment. With the Internet-of-Things revolution, commercially available hardware and software components can be used to build low-cost, reliable, disposable wireless sensor networks that can leverage in-network processing schemes to greatly expand the intelligence collection footprint.

Multi-Domain Command and Control (MDC2)

  • Magazine Article
  • TBMG-28395
Published 2018-02-01 by Tech Briefs Media Group in United States

We are at an inflection point in the evolution of warfare. While technology is rapidly increasing pace, it is also creating an expansion into multiple, parallel domains, and giving enemy forces more options for both disruption and defense. Technology advances are a key factor to successes spanning the spectrum from humanitarian efforts to complex anti-access/area-denial environments. However, technology is only an enabler, and mindsets must change to allow the technology to be a tool for success, and not ignored due to antiquated doctrine, policies, and guidance.

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Multi-Domain Command and Control (MDC2)

Aerospace & Defense Technology: February 2018

  • Magazine Article
  • 18AERP02_01
Published 2018-02-01 by SAE International in United States

Changing the Face of Modern Warfare

We are at an inflection point in the evolution of warfare. While technology is rapidly increasing pace, it is also creating an expansion into multiple, parallel domains, and giving enemy forces more options for both disruption and defense. Technology advances are a key factor to successes spanning the spectrum from humanitarian efforts to complex anti-access/area-denial environments. However, technology is only an enabler, and mindsets must change to allow the technology to be a tool for success, and not ignored due to antiquated doctrine, policies, and guidance.

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