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Message Sets for Advanced Traveler Information System (ATIS)

V2X Core Technical Committee
  • Ground Vehicle Standard
  • J2354_201906
  • Current
Published 2019-06-11 by SAE International in United States
This SAE Standard describes standardized medium-independent messages needed by information service providers for Advanced Traveler Information Systems (ATIS). The messages contained herein address all stages of travel (informational, pre-trip and en route), all types of travelers (drivers, passengers, personal devices, computers, other servers), all categories of information, and all platforms for delivery of information (in-vehicle, portable devices, kiosks, etc.).
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Evaluation of Different ADAS Features in Vehicle Displays

University of Michigan-Abhishek Mosalikanti, Pranove Bandi, Sang-Hwan Kim
Published 2019-04-02 by SAE International in United States
The current study presents the results of an experiment on driver performance including reaction time, eye-attention movement, mental workload, and subjective preference when different features of Advanced Driver Assistance Systems (ADAS) warnings (Forward Collision Warning) are displayed, including different locations (HDD (Head-Down Display) vs HUD (Head-Up Display)), modality of warning (text vs. pictographic), and a new concept that provides a dynamic bird’s eye view for warnings.Sixteen drivers drove a high-fidelity driving simulator integrated with display prototypes of the features. Independent variables were displayed as modality, location, and dynamics of the warnings with driver performance as the dependent variable including driver reaction time to the warning, EORT (Eyes-Off-Road-Time) during braking after receiving the warning, workload and subject preference. The primary results were in line with previous research, validating previous claims of the superiority of HUD over HDD in warning delivery. It was also found that the text format of the warning yielded higher response rates along with lower workload, while most participants preferred the dynamic bird’s eye view layout.
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System Engineering of an Advanced Driver Assistance System

Ohio State University-Evan Stoddart, Subash Chebolu, Shawn Midlam-Mohler
Published 2019-04-02 by SAE International in United States
Current Advanced Driver Assistance Systems (ADAS) often interact with the driver; aiding with either warnings or direct intervention. This work explores the development of an ADAS system to provide lane departure warning, forward collision warning, and a recommended following distance for a custom plug-in hybrid-electric vehicle. The system utilizes off-the-shelf hardware with in-house computer vision and sensor fusion algorithms to create a low-cost SAE Level 0 driver assistance system. The system utilizes a radar sensor as well as a camera to detect, classify, and track target vehicles. This work will illustrate the systems engineering methods used for outlining customer requirements, technical requirements, component selection, software development, simulation, vehicle fitment, and validation. Similar system engineering processes could be implemented for higher level SAE systems.
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Simulation Based Design and Development of Test Track for ADAS Functions Validation and Verification with Respect to Indian Scenario

Automotive Research Association of India-Jyoti Ganesh Kale, Anand Subramaniam, Manish Laxman Karle, Ujjwala Shailesh Karle
Published 2019-01-09 by SAE International in United States
Autonomous vehicles perform various functions with their own control strategies. Functions like Lane Departure Warning (LDW), Lane Keeping system (LKS) and Forward Collision Warning System (FCWS) requires special test tracks for their verification and validation. These test track requirements change with region to region according to available infrastructure.This paper deals with the design and development of test tracks for different ADAS functions verification and validation of Indian specific scenarios and its simulation in IPG CarMaker. The test track conceptualization has been done through the understanding and study of different international standards and geometry of test tracks for Indian conditions have been developed. IPG CarMaker software tool is used for creation of test track, and same track is used for simulation of above ADAS functions in IPG CarMaker. It is used as a scenario editor which can also simulate ECU and respond to sensor inputs dynamically which is not possible with other simulation environments. It creates a repeatable test scenario for particular function. IPG CarMaker is used to generate the required test track conditions in animated…
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Nissan's all-new Altima gets variable-compression engine, AWD

Automotive Engineering: November 2018

Paul Seredynski
  • Magazine Article
  • 18AUTP11_09
Published 2018-11-01 by SAE International in United States

The Altima sedan is an important product for Nissan, what it calls its “brand ambassador.” Long a solid choice in the midsize sedan segment, its typically conservative sheetmetal over the nameplate's five generations has set benchmarks for inoffensive design. For MY2019, Nissan has moved the all-new sixth-generation Altima onto an updated, autonomous-capable global platform and is providing two new powertrains, its first all-wheel-drive system for a sedan in this market and styling that is clean, handsome and sharp.

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2019 Honda Pilot gets refined 9-speed, tougher styling

Automotive Engineering: October 2018

Paul Seredynski
  • Magazine Article
  • 18AUTP10_13
Published 2018-10-01 by SAE International in United States

The 2019 Honda Pilot arrives with few but important changes for the 3-row, 8-seat SUV, most notably revisions to its 9-speed automatic. New, more-rugged exterior styling is designed to remind consumers the Pilot has a thoroughly capable torque-vectoring all-wheel-drive setup, and Honda's suite of radar-based safety systems is now standard on all Pilot models.

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Effects of an On-Board Safety Device on the Emissions and Fuel Consumption of a Light Duty Vehicle

THEi-Jackson Ho
University of Technology- Sydney-Cheuk Yin Ng, Yuhan Huang, Guang Hong, John Zhou, Nic Surawski
Published 2018-09-10 by SAE International in United States
Vehicle emissions and fuel consumption are significantly affected by driving behavior. Many studies of eco-driving technology such as eco-driving training, driving simulators and on-board eco-driving devices have reported potential reductions in emissions and fuel consumption. Use of on-board safety devices is mainly for safety, but also affects vehicle emissions and fuel consumption. In this study, an on-board safety device was installed to alert the driver and provide several types of warning to the driver (e.g. headway monitoring warning, lane collision warning, speed limit warning, etc.) to improve driving behavior. A portable emissions measurement system (PEMS) was used to measure vehicle exhaust concentrations, including hydrocarbons (HC), carbon monoxide (CO), carbon dioxide (CO2) and nitrogen oxides (NOx). The driving parameters including vehicle speed, acceleration and position were also recorded. A specific test route was designed for the experiment to investigate both urban and highway conditions. The driving parameters and emissions data were compared before and after the installation of the on-board safety device with the same driver. The Vehicle Specific Power (VSP) methodology was applied to evaluate…
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Truck and Bus Lane Departure Warning Systems Test Procedure and Minimum Performance Requirements

Truck and Bus Active Safety Systems Committee
  • Ground Vehicle Standard
  • J3045_201808
  • Current
Published 2018-08-28 by SAE International in United States
This SAE Recommended Practice establishes a uniform, powered vehicle test procedure and minimum performance requirement for lane departure warning systems used in highway trucks and buses greater than 4546 kg (10000 pounds) GVW. Systems similar in function but different in scope and complexity, including Lane Keeping/Lane Assist and Merge Assist, are not included in this document. This document does not apply to trailers, dollies, etc. This document does not intend to exclude any particular system or sensor technology. The specification will test the functionality of the LDWS (e.g., ability to detect lane presence, and ability to detect an unintended lane departure), its ability to indicate LDWS engagement, its ability to indicate LDWS disengagement, and determine the point at which the LDWS notifies the Human Machine Interface (HMI) or vehicle control system that a lane departure event is detected. Moreover, the specification determines whether a system performs at a minimally acceptable level. The HMI is not addressed herein but is considered in SAE Standard J2808.
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Event Data Recorder - Output Data Definition

Event Data Recorder Committee
  • Ground Vehicle Standard
  • J1698/1_201805
  • Current
Published 2018-05-24 by SAE International in United States
This Recommended Practice provides common data output formats and definitions for a variety of data elements that may be useful for analyzing vehicle crash and crash-like events that meet specified trigger criteria. The document is intended to govern data element definitions, to provide a minimum data element set,and to specify EDR record format as applicable for light-duty motor vehicle Original Equipment applications.
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Passenger Vehicle-Motorcycle Pre-Crash Trajectory Reconstruction and Conflict Analysis Results Based on an Extended Application of the Honda-DRI ACAT Safety Impact Methodology

SAE International Journal of Transportation Safety

Dynamic Research, Inc.-R. Michael Van Auken, John Lenkeit, Terrance Smith
  • Journal Article
  • 2018-01-0510
Published 2018-04-03 by SAE International in United States
Advanced Crash Avoidance Technologies (ACATs) such as Forward Collision Warning (FCW) and Automatic Emergency Braking (AEB) have been developed for light passenger vehicles (LPVs) to avoid and mitigate collisions with other road users and objects. However, the number of motorcycle (MC) crashes, injuries, and fatalities in the United States has remained relatively constant. To fully realize potential safety benefits, advanced driver assistance systems and future automated vehicle technologies also need to be effective in avoiding collisions with motorcycles. Toward this goal the Honda-DRI ACAT Safety Impact Methodology (SIM), which was previously developed to evaluate LPV ACAT system effectiveness in avoiding and mitigating collisions with fixed objects, other LPVs, and pedestrians, is being extended to also evaluate the effectiveness of ACATs in avoiding and mitigating LPV-MC collisions. Initial efforts have involved extending the ACAT SIM Crash Scenario Database Development Tools to reconstruct real-world LPV-MC pre-crash/crash scenarios based on the recently completed Motorcycle Crash Causation Study (MCCS) data. Pre-crash trajectory reconstruction results using this extended tool indicate three main types of LPV-MC pre-crash conflicts. These results also…
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