• Video
  • 05-Dec-2011 09:29 EST

Data Driven Testing for HIL Systems

00:16:02
Length:

Purchase Required to View Video

Short Preview Below

The amount of software, computation and logic embedded into the vehicle systems is increasing. Testing of complex real time embedded systems using Hardware in Loop (HIL) simulations across different vehicle platforms has been a challenge.

Data driven testing enables a qualitative approach to test these complex vehicle systems. It consists of a test framework wherein the test logic and data are independent of the HIL test environment. The data comprises variables used for both input values and output verification values. This data is maintained in a database or in the form of tables. Each row defines an independent test scenario. The entire test data is divided into three categories, High, Medium and Low. This feature gives the advantage of leveraging the same set of test data from Unit Level Testing phases to the Integration Test phase in the V-Cycle of software development.

A data driven test approach helps the reuse of tests across vehicle platforms. This improves test coverage since the test is more readable and reduces maintenance since it's easier to add or delete any inputs without affecting the test environment. Data driven testing is more scalable and modular since every test scenario is independent of each other.

Above approach towards testing has a significant impact on the life cycle of product development. It allows developers to validate new hardware and software automotive solutions, respecting quality requirements and time-to-market restrictions.

Presenter
Vijay Kumar Kalia, John Deere India Pvt, Ltd.
Yogesh Pawar, John Deere India Pvt , Ltd.

Buy
Select
Price
List
Purchase to View
$19.00
Learn More
Technical Paper / Journal Article
2011-09-13
TECH PPR 2011 COMVEC
Share
HTML for Linking to Page
Page URL
Grade
Rate It
No ratings yet

View More Video

Video
2011-11-29
Today CFD is an important tool for engineers in the automotive industry who model and simulate fluid flow. For the complex field of Underhood Thermal Management, CFD has become a very important tool to engineer the cooling airflow process in the engine bay of vehicles. Presenter Peter Gullberg, Chalmers University of Technology
Video
2011-12-05
Real-time simulation of truck and trailer combinations can be applied to hardware-in-the-loop (HIL) systems for developing and testing electronic control units (ECUs). The large number of configuration variations in vehicle and axle types requires the simulation model to be adjustable in a wide range. This paper presents a modular multibody approach for the vehicle dynamics simulation of single track configurations and truck-and-trailer combinations. The equations of motion are expressed by a new formula which is a combination of Jourdain's principle and the articulated body algorithm. With the proposed algorithm, a robust model is achieved that is numerically stable even at handling limits. Moreover, the presented approach is suitable for modular modeling and has been successfully implemented as a basis for various system definitions. As a result, only one simulation model is needed for a large variety of track and trailer types.
Video
2011-12-05
This paper presents an extension of our earlier work on Cummins Vehicle Mission Simulation (VMS) software. Previously, we presented VMS as a Windows based analysis tool to simulate vehicle missions quickly and to gauge, communicate, and improve the value proposition of Cummins engines to customers. Presenter Nagesh Belludi, Cummins Inc.
Video
2011-12-05
These advanced checks have resulted in development of many new diagnostic monitors, of varying types, and a whole new internal software infrastructure to handle tracking, reporting, and self-verification of OBD related items. Due to this amplified complexity and the consequences surrounding a shortfall in meeting regulatory requirements, efficient and thorough validation of the OBD system in the powertrain control software is critical. Hardware-in-the-Loop (HIL) simulation provides the environment in which the needed efficiency and thoroughness for validating the OBD system can be achieved. A HIL simulation environment consisting of engine, aftertreatment, and basic vehicle models can be employed, providing the ability for software developers, calibration engineers, OBD experts, and test engineers to examine and validate both facets of OBD software: diagnostic monitors and diagnostic infrastructure (i.e., fault memory management).

Related Items

Article
2016-11-11
Technical Paper / Journal Article
2011-04-12
Technical Paper / Journal Article
2011-04-12
Training / Education
2012-08-27
Book
2006-03-02
Book
2002-04-15
Training / Education
2017-06-15
Article
2016-08-23
Technical Paper / Journal Article
2011-04-12