Computers

Analysis Techniques for Racecar Data Acquisition

Author: Jorge Sergers

Publisher: SAE International

ISBN:

Category: Computers

Page: 537

View: 943

Racecar data acquisition used to be limited to well-funded teams in high-profile championships. Today, the cost of electronics has decreased dramatically, making them available to everyone. But the cost of any data acquisition system is a waste of money if the recorded data is not interpreted correctly. This book, updated from the best-selling 2008 edition, contains techniques for analyzing data recorded by any vehicle's data acquisition system. It details how to measure the performance of the vehicle and driver, what can be learned from it, and how this information can be used to advantage next time the vehicle hits the track. Such information is invaluable to racing engineers and managers, race teams, and racing data analysts in all motorsports. Whether measuring the performance of a Formula One racecar or that of a road-legal street car on the local drag strip, the dynamics of vehicles and their drivers remain the same. Identical analysis techniques apply. Some race series have restricted data logging to decrease the team’s running budgets. In these cases it is extremely important that a maximum of information is extracted and interpreted from the hardware at hand. A team that uses data more efficiently will have an edge over the competition. However, the ever-decreasing cost of electronics makes advanced sensors and logging capabilities more accessible for everybody. With this comes the risk of information overload. Techniques are needed to help draw the right conclusions quickly from very large data sets. In addition to updates throughout, this new edition contains three new chapters: one on techniques for analyzing tire performance, one that provides an introduction to metric-driven analysis, a technique that is used throughout the book, and another that explains what kind of information the data contains about the track.
Technology & Engineering

Analysis Techniques for Racecar Data Acquisition

Author: Jorge Segers

Publisher: SAE International

ISBN:

Category: Technology & Engineering

Page: 206

View: 241

Data acquisition has become an invaluable tool for establishing racecar - and car/driver - performance. Now that the ability exists to analyze each and every performance parameter for car and driver, accurate use of this data can provide a key advantage on the racetrack. This book provides a thorough overview of the varied methods for analyzing racecar data acquisition system outputs, with a focus on vehicle dynamics.
Automobiles, Racing

Analysis Techniques for Racecar Data Acquisition, Second Edition

Author: Jorge Segers

Publisher:

ISBN:

Category: Automobiles, Racing

Page: 537

View: 197

Racecar data acquisition used to be limited to well-funded teams in high-profile championships. Today, the cost of electronics has decreased dramatically, making them available to everyone. But the cost of any data acquisition system is a waste of money if the recorded data is not interpreted correctly. This book, updated from the best-selling 2008 edition, contains techniques for analyzing data recorded by any vehicle's data acquisition system. It details how to measure the performance of the vehicle and driver, what can be learned from it, and how this information can be used to advantage ne.
Technology & Engineering

Data Acquisition from Light-Duty Vehicles Using OBD and CAN

Author: Eric Walter

Publisher: SAE International

ISBN:

Category: Technology & Engineering

Page: 186

View: 357

Modern vehicles have multiple electronic control units (ECU) to control various subsystems such as the engine, brakes, steering, air conditioning, and infotainment. These ECUs are networked together to share information directly with each other. This in-vehicle network provides a data opportunity for improved maintenance, fleet management, warranty and legal issues, reliability, and accident reconstruction. Data Acquisition from LD Vehicles Using OBD and CAN is a guide for the reader on how to acquire and correctly interpret data from the in-vehicle network of light-duty (LD) vehicles. The reader will learn how to determine what data is available on the vehicle’s network, acquire messages and convert them to scaled engineering parameters, apply more than 25 applicable standards, and understand 15 important test modes. Topics featured in this book include: • Calculated fuel economy • Duty cycle analysis • Capturing intermittent faults Written by two specialists in this field, Richard P. Walter and Eric P. Walter of HEM Data, the book provides a unique roadmap for the data acquisition user. The authors give a clear and concise description of the CAN protocol plus a review of all 19 parts of the SAE International J1939 standard family. Data Acquisition from LD Vehicles Using OBD and CAN is a must-have reference for product engineers, service technicians fleet managers and all interested in acquiring data effectively from the SAE J1939-equipped vehicles.
Technology & Engineering

Vehicle Battery Fires

Author: Greg Barnett

Publisher: SAE International

ISBN:

Category: Technology & Engineering

Page: 186

View: 580

Battery Fires: Why They Happen and How They Happen was written to assist those interested in this type of incident understand how automotive fires develop, spread and the damage they cause, using both deductive and inductive reasoning. The main focus of the book resides in looking at differences in failure modes between DC and AC systems, general types of battery and electrical failure modes leading to fire, how to interpret electrical fire, determination of the primary failed part, and other skills the investigating engineer will require to perform technical failure mode analysis. However, some fires have consumed the evidence to the point where a determination cannot be made with any degree of certainty. In this instance, evidence will be quite limited, and the analysis will have its limitations and should be included in the discussion as such. In some cases, a “cause undetermined” report is all the evidence will support. Battery Fires: Why They Happen and How They Happen is a unique title which brings together the theory and the practice of correctly evaluating the root causes of unexpected and dangerous automobile fires.
Automobiles, Racing

Making Sense of Squiggly Lines

Author: Christopher Brown

Publisher:

ISBN:

Category: Automobiles, Racing

Page: 144

View: 762

This introductory book teaches the basic techniques of data analysis to help make race cars and drivers go faster. Six main channels are scrutinized including Speed, Engine RPM, Throttle Position, G Force Lateral, G Force Longitudinal and Steering Angle.

Steering Analysis of a Formula Renault Car Using Data Acquisition

Author: Avinash Sankappa Shetty

Publisher: LAP Lambert Academic Publishing

ISBN:

Category:

Page: 100

View: 299

The aim of this research is to analyse the cornering behaviour of a Formula Renault car by using data acquisition systems. The car specifications and its existing data acquisition system are described and need of certain upgrades is assessed. Oversteer and understeer phenomenon of a race car and the associated dynamics is discussed. The different ways of determining whether the car is oversteering or understeering is found by setting up Math Channels. The operation of the onboard logger in preparation to record the car's track test data is discussed after its setup that involved the calibration & verification of several sensors. Once the track test was conducted, the results are analysed by data interpretation techniques needed in identifying if the car is oversteering or understeering by noticing certain traces on Motec I2 Pro from conducted track tests data. The lap runs were performed on Snetterton Race Circuit. The car's setup was then fine tuned in order to counteract oversteer/understeer to provide improved laptimes.