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Approach for standardization of Advanced Driving Assistance System (ADAS) in India

International Centre for Automotive Technology-Aditi Sethi
  • Technical Paper
  • 2019-28-2464
To be published on 2019-11-21 by SAE International in United States
Authors: Aditi Sethi1, Siddhanta Shrivastava2, Madhusudan Joshi3 Organization: 1,2,3 International Centre for Automotive Technology, Manesar Introduction: With the increasing utilization of electronics in Indian automobile industry, there is an essential requirement for standardizing the functional safety of sub-systems that constitute advanced driving assistance system (ADAS) as it would be the foundation stone for the automated vehicles in future. These systems assist the driver and the driving process, further increasing the car safety and road safety, subsequently reducing human error. Due to interaction of several electronic control units (ECUs) in a vehicle and complexity of the system, electronic stability plays a vital role. Therefore, the standards shall be more performance oriented and technology neutral. They shall also cover validation tests associated with safety, mechanical rigidity, durability, environmental protection and electromagnetic compatibility. Standardization of ADAS would authenticate the quality, regulate and smoothen the uniform implementation of these sub-systems. Interestingly the standardization of ADAS is in progress at the international level. It is therefore pertinent to consider adoption, formulation or both of international standards as a part of…
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Miniaturized and sleek protective device

Mahindra & Mahindra, Ltd.-Priyanka Marudhavanan
  • Technical Paper
  • 2019-28-2535
To be published on 2019-11-21 by SAE International in United States
A miniaturized and sleek protective device M. Priyanka, Mahindra&Mahindra, India D. Boobala Krishnan*, Mahindra&Mahindra, India T.Vijayan, Mahindra& Mahindra, India Keywords-Fuse, Lightweight. Research and/or Engineering Questions/Objective: Now-a-days there is lot of advancement coming in automobiles. Earlier the electronics were used in engine and engine compartment areas. Now all hydraulics and transmission have been operated by electronics. The role of electronics like sensors, actuators increasing day by day for lifting and moving operations. With increase in electronics circuit, there is complex in wiring harness and packaging space for fuse box is premium Limitations: Limitations of placing other devices. Occupy more space and weight in the vehicle. Packing constraint due to vibration and thermal management issues. Methodology: Two different fuse of same rating can be given in one fuse and we can reduce the wire size. By this method we can save many fuses and reduce the fuse box size. An optimized fuse box minimizes the length of circuit. It translates the system into less plastics. This type of system is highly useful in systems such as ECU…
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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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Link digital suspension uses sensors, ECU to keep cabs stable

SAE Truck & Off-Highway Engineering: October 2019

Terry Costlow
  • Magazine Article
  • 19TOFHP10_07
Published 2019-10-01 by SAE International in United States

Link Manufacturing is beefing up its usage of digital technologies with an upgraded Cabmate, unveiling a cab suspension system that smooths the ride for both drivers and those in sleepers. Link's Road Optimized Innovations (ROI) system uses sensors and an electronic control unit (ECU) to stabilize the entire cab for roughly the cost of two advanced comfort seats.

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Braking Requirements for Optimizing Autonomous Emergency Braking Performance

Applus IDIADA-Álvaro Esquer Molina, Jordi Bargallo
Published 2019-09-15 by SAE International in United States
Vehicle technology new developments have contributed to improve vehicle structural performance and therefore passive protection, but also the inclusion of electronic control units has provided new opportunities to expand active safety systems. This is the case for systems like anti-lock braking systems (ABS), electronic stability control (ESC) and brake assist (BA) among others. A more advanced generation of active systems includes sensorial units that monitor vehicle’s surrounding and detect potential hazards, such as an imminent collision, and performs an automatically and commanded emergency braking to lessen or mitigate the consequences of the impending accident. For this latest system, the so-called autonomous emergency braking (AEB), various consumer testing protocols, such as Euro NCAP protocols [1], propose and periodically update test catalogues in order to evaluate the performance of such systems and later to inform potential consumers.The aim of this study is to investigate the means of improving AEB performance in terms of efficiency and driver acceptance. For this, performance of current AEB system will be studied and compared with the limits of vehicle’s braking capabilities.
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Virtual Chassis Dyno for Diesel Engine Tuning and Calibration

RENAULT SAS-Damien Maroteaux
  • Technical Paper
  • 2019-24-0076
Published 2019-09-09 by SAE International in United States
Since WLTP introduction in Europe, Exhaust Emission standards are based also on real driving conditions. The tuning and calibration work for Engine-out Emissions and Exhaust After-treatment Systems must therefore include all driving conditions in real life use of the vehicle. This includes temperature conditions, altitude, vehicle load and driving style. Consequently, the workload, cost and duration for the engine and after treatment system calibration activities, based on physical tests as today, are no more compatible with realistic development targets. The purpose of the methodology described in this paper is to replace chassis dyno vehicle tests by Hardware in the Loop, using the Engine Electronic Control Unit as physical part. The vehicle, driver, engine, gearbox are all modeled by 0D/1D simulation running in real time. The methodology used to build the simulation models is described. A Design of Experiment Approach based mainly on steady state engine testing is used to build the engine-out emission model. A very extensive work has been done to validate the method, by comparing results from the model with vehicle chassis dyno…
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Definition of a Methodology Promoting the Use of 1D Thermo-Fluid Dynamic Analysis for the Reduction of the Experimental Effort in Engine Base Calibration

Teoresi Spa-Francesco de Nola, Andrea Molteni, Roberto Tortora lng
Universita di Napoli Federico II-Giovanni Giardiello, Alfredo Gimelli, Massimiliano Muccillo
Published 2019-09-09 by SAE International in United States
Over the last decades, internal combustion engines have undergone a continuous evolution to achieve better performance, lower pollutant emissions and reduced fuel consumption. The pursuit of these often-conflicting goals involved changes in engine architecture in order to carry out advanced management strategies. Therefore, Variable Valve Actuation, Exhaust Gas Recirculation, Gasoline Direct Injection, turbocharging and powertrain hybridization have found wide application in the automotive field. However, the effective management of a such complex system is due to the contemporaneous development of the on-board Engine electronic Control Unit. In fact, the additional degrees of freedom available for the engine regulation highly increased the complexity of engine control and management, resulting in a very expensive and long calibration process. To overcome these drawbacks, an effective methodology based on the adoption of 1D thermo-fluid dynamic analysis is proposed in this study. In particular, starting from a complete experimental set of data actually used for the base calibration of a reference spark ignition engine, a novel procedure based on vector optimization approach is used to reliably calibrate a 1D engine…
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BlackBerry Tech Duo Sees Emergence of Vehicle-based Platforms

Autonomous Vehicle Engineering: September 2019

Paul Seredynski
  • Magazine Article
  • 19AVEP09_07
Published 2019-09-01 by SAE International in United States

Though likely to provide the OS of autonomy, BlackBerry also anticipates a larger shift to automobiles as software platforms.

At 2019's TU Automotive conference, Autonomous Vehicle Engineering spoke with two of the industry's most important software sages, BlackBerry's John Wall and Kaivan Karimi, both senior vice presidents and co-heads of Blackberry Technology Solutions. The duo's division includes BlackBerry's security services, the nigh ubiquitous QNX architecture along with products including Jarvis, Certicom and Paratek for the Waterloo, Ontario-based company. Sort of like chatting with the Obi-Wan and Yoda of secure-software architectures, the interview provided an animated back-and-forth between the two well-acquainted BlackBerry execs, discussing the emergence of the vehicle as its own software platform.

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Recommended Practice for Pass-Thru Vehicle Programming

Vehicle E E System Diagnostic Standards Committee
  • Ground Vehicle Standard
  • J2534_201907
  • Current
Published 2019-07-29 by SAE International in United States
This SAE Recommended Practice provides the framework to allow reprogramming software applications from all vehicle manufacturers the flexibility to work with multiple vehicle data link interface tools from multiple tool suppliers. This system enables each vehicle manufacturer to control the programming sequence for electronic control units (ECU’s) in their vehicles, but allows a single set of programming hardware and vehicle interface to be used to program modules for all vehicle manufacturers. This document does not limit the hardware possibilities for the connection between the PC used for the software application and the tool (e.g., RS-232, RS-485, USB, Ethernet…). Tool suppliers are free to choose the hardware interface appropriate for their tool. The goal of this document is to ensure that reprogramming software from any vehicle manufacturer is compatible with hardware supplied by any tool manufacturer. The U.S. Environmental Protection Agency (EPA) and the California Air Resources Board (ARB) have proposed requirements for reprogramming vehicles for all manufacturers by the aftermarket repair industry. This document is intended to meet those proposed requirements for 2004 model year…
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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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