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A DIGITALIZED VALIDATION APPROACH FOR REAL TIME AND REMOTE MONITORING OF AN OFF HIGHWAY VEHICLE PERFORMANCE

Research & Devlopment Institute-Jagannathan Vasu
  • Technical Paper
  • 2019-28-2531
To be published on 2019-11-21 by SAE International in United States
A DIGITALIZED VALIDATION APPROACH FOR REAL TIME AND REMOTE MONITORING OF AN OFF-HIGHWAY VEHICLE PERFORMANCE V.Jagannathan 1.a* , B.Jaiganesh 2.b & S.Sudarsanam 3.c Mahindra & Mahindra Limited, Mahindra Research Valley, Mahindra World City, Anjur PO, TN, India Corresponding author Email- V.JAGANNATHAN@mahindra.com Validation of agricultural tractors is necessary to ensure that these machines perform to their expected potential and are aptly matched with implements. Testing these machineries in real-time while performing activities in the field allows a bigger picture to be seen; the performance data incorporates the effects of many external factors (Soil, Climate etc.). Tractor Performance data apprehending is the vital part of validation. Data acquisition of key performance parameters during field validation in different application/different countries is of utmost importance. Most prevailing methodology in Tractor validation is by capturing the performance parameters such as Fuel consumption, Area coverage, Wheel slip, Engine rpm drop, implement depth of cut, Tractor speed etc. in manual and physical way. These methodologies of capturing performance parameters are tedious, time consuming, involves manpower, not so secured or safe. The readings…
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Investigation of Transmissibility of an all-terrain vehicle with spring and damper tuning.

ARAI Academy-Rajat Girish Kanade, Mohammad Rafiq Agrewale, Kamalkishore Vora
  • Technical Paper
  • 2019-28-2423
To be published on 2019-11-21 by SAE International in United States
The application in ride and handling development has been mostly subjective or intuitive. Suspension settings are based on the opinions of experts. The product of this research will enable to quantify the performance of a suspension in terms of its ability to minimize the transmission of road irregularities to the chassis and achieve good mechanical grip with the road surface. This work presents a dynamical analysis of the transmissibility of an off-road vehicle suspension, developed in VIT Vellore for Baja SAE India competition. A baseline spring rates curve for ride is developed to provide a solid foundation to tune from. The shock absorbers used for testing are Fox Float Evol R air shock absorbers with progressive damping. A thorough data acquisition of the force curves for shocks from a test rig is done. A detailed characteristic of the air shocks is obtained at various loading conditions. The basic damping curve is modified towards the desired ideal nature with the data obtained. The speculated optimum setting is validated on the ATV vehicle with ultrasonic sensors and…
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Transient Response Analysis and Synthesis of an FSAE Vehicle using Cornering Compliance

SRM Institute of Science and Technology-Nanthakumar Ajd, Pranav Suresh, Shubham Subhnil, Vasanthkumar CH
  • Technical Paper
  • 2019-28-2400
To be published on 2019-11-21 by SAE International in United States
OBJECTIVE Race vehicles are designed to achieve higher lateral acceleration arising at cornering conditions. A focused study on the steady state handling of the car is essential for the analysis of such conditions. The transient response analysis of the car is also equally important to achieve best driver-car relationship and to quantify handling in the range suitable for a racing car. This research aims to investigate the design parameters responsible for the transient characteristics and optimize those design parameters. This research work examines the time-based analysis of the problem to truly capture the non-linear dynamics. Apart from tires, chassis can be tuned to optimize vehicle handling and hence the response times. METHODOLOGY To start with, the system is modelled with governing parameters and simulation is carried out to set baseline configurations. Steady state and transient handling simulations run independent of each other with independent logic, coded on MATLAB. The static testing of the chassis is carried over using a Kinematic & Compliance (K & C) testing rig to get Compliance Budget and hence the calculated…
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Handling of Data from Heterogeneity of Vehicular Devices through Inter-Networking

VIT Universtity-Gnanaprakasam Anuradha, Kalivaradhan Ramesh Babu
Vellore Institute of Technology-Chooriyaparambil Damodaran Naiju
Published 2019-10-11 by SAE International in United States
Collection of various data from sensed data or raw availability of data from transcript or interdependency of data from various sources is a tedious task in a real time scenario like an Indian context is considered. Planning to find a solution to collect the data from various vehicular devices about the information related to the pollution becomes a cumbersome job. The need of the data, under what time duration data has to be transmitted, how they are interconnected and whether data needs to be stored or how they are processed is a major question that arise when dealing with collecting data and internetworking with various vehicular devices. A study of two different types of approaches for internetworking between the devices is discussed. One related to real time setup of mobile application and other with the dynamic cluster approach when the nodes are moving in a region was considered. Eliminating the speed of the vehicle with the movement of human formation of cluster with the mobile application to identify the various devices in the vicinity was…
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Damage Matching Criterion for Development of Accelerated Duty Cycle from Road Load Data, and Achieving Right Duty Cycle to Determine Gear and Bearing Durability

Romax Solutions-Amol Korde
Published 2019-10-11 by SAE International in United States
While designing the transmission, designer needs to have a duty cycle which is a set of load cases against which he wants to confirm the durability of the same. This is done through data acquisition by running a vehicle on various terrains and converting those data points to a concise set of load cases which we term as duty cycle. This concise set of load cases required because data acquired has millions of data points giving value of torque and RPM at every millisecond which cannot be directly used to assess the fatigue durability of gears and bearings. Converting these millions of road load data points into fewer number of load cases is always a challenge. For a transmission designer, it is being a major hurdle to determine as what is the scientific way of converting these millions of data points into a concise duty cycle. The road load data is taken for few hundred or few thousand kilometres covering enough types of terrains on which vehicle is expected to run. The methods available with…
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Development of Data Acquisition and Analysis System: Telemetry in Automotive

Vellore Institute of Technology-Divyansh Rastogi, Gokul Kumar, Chooriyaparambil Damodaran Naiju
Published 2019-10-11 by SAE International in United States
Digital data extraction is the most important and advance informative system that are embedded in the modern world functioning machinery to acquire the most precise feedback about the real-time operational situation of the machine to the control centre of operation. This data that is acquired from the machinery can be used to increase the efficiency, operational timing, production-cost and the overall human effort that is required for the operation. This paper focuses on the development on the advanced telemetry system that is capable to acquire real-time data of the modern vehicle wirelessly during its motion. A mobile automotive telemetry system for installation on-board a vehicle, includes: diagnostic structure for monitoring operational functions of the vehicle and generating operational information; memory for storing the generated operational information; and a server, in communication with the diagnostic structure and the memory. The server includes: (a) structure to receive a request from a remote client for the generated operational information; (b) structure to retrieve the generated operational information from the memory; and (c) structure to transmit the generated operational…
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Data Security Services

Motor Vehicle Council
  • Ground Vehicle Standard
  • J1760_201910
  • Current
Published 2019-10-09 by SAE International in United States

The scope of this SAE Recommended Practice is to require the use of the same Security Services as defined by the International Standard ISO/CD 15764, modified by the Class of Security as determined by the resource provider and referenced in Table 1, Extended Data Link Security References.

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Optical Sensor for the Needle Lift Detection in the Common Rail Injector

The University of Birmingham, UK-Carlo Coratella, Lewis Parry, Amrit Sahu, Hongming Xu
Published 2019-09-09 by SAE International in United States
The detection of needle displacement within a Common Rail injector is a crucial step to suitably characterize the behaviour of an injector. The needle motion is traditionally measured by means of an eddy current sensor. Apart from its high cost, scientific literature highlights its drawbacks, such as the introduction of mechanical weakness on the control piston as well as the electromagnetic disturbance affecting data acquisition. In order to provide an improved quality of signal, other solutions have been developed, which require a large number of components, leading to increased layout complexity. This layout can create a packing issue while mounting the sensor on the test rig. A novel sensor (UK Patent Application No.1819731.9) using fibre optic cable has been designed and built to overcome the limitations typically associated with needle displacement transducers. Variations in light intensity, stemming from control piston displacement, underlie the working principle of the proposed sensor. The paper provides technical details and describes the experimental tests proving the sensor capability to detect injection events under various injection scenarios. The use of the…
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Spatiotemporal Imaging Exploiting Structured Sparsity

Aerospace & Defense Technology: September 2019

  • Magazine Article
  • 19AERP09_07
Published 2019-09-01 by SAE International in United States

Overcoming the conventional limits of spatiotemporal imaging by applying compressed sensing and sparse representations to reduce the amount of data acquired while maintaining high image resolution.

Spatiotemporal imaging contains a large class of imaging problems, which involve collecting a sequence of data sets to resolve both the spatial and temporal (or spectral) distributions of some physics quantity. This capability is exploited in numerous different fields such as remote sensing, security surveillance systems, astronomical imaging, and biomedical imaging. One typical example is hyperspectral imaging, which is a powerful technology for remotely inferring the material properties of the objects in a scene of interest. Ultrasonic and thermal imaging are other important examples of spatiotemporal imaging where high spatial resolution is needed for urban planning, military planning, intelligence and disaster monitoring and evaluation.

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The Navigator

Autonomous Vehicle Engineering: September 2019

  • Magazine Article
  • 19AVEP09_02
Published 2019-09-01 by SAE International in United States

No trust in AI systems without data protection

When people surround themselves with microphones and cameras, others will be listening and watching. This reality shouldn't come as a surprise, but remarkably it does. The advent of automated driving will dramatically expand this activity. In fact, it is already creating controversy.

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