Browse Publications Technical Papers 2007-01-1742
2007-04-16

Model Based Reusable and Reliable Software Validation for Functional Coverage using Virtual ECUs 2007-01-1742

In embedded software world, development and testing are becoming far more complex with growing functionality and fail safe strategies. As a result of that, model-based software development is getting increasingly popular in capturing the functional requirements and auto generating the code from these validated models to avoid any functional deficiency. However, the complexity in the model may not be correctly interpreted by the code generation tool and may result to an incorrect code behavior. In this paper, a methodology has been proposed and implemented to validate the generated code against the models. Simulation test scripts are recorded in the modeling environment to generate the desired set of test inputs. These input scripts are designed to get complete transition and state exposure to maximize the functional coverage. With these test scripts, expected outputs are recorded for downstream validation in the simulation environment with mature models. When the virtual ECU (created from the auto generated code) executes the captured inputs, generated outputs are recorded and compared against prerecorded expected outputs. Furthermore, the same validation can be done for all future releases to make sure that the generated code integrity is maintained with each modification. It is a step forward towards bringing the virtual world ECU validation as close as possible to the real world.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Virtual Validation - A New Paradigm in Controls Engineering

2013-01-2404

View Details

TECHNICAL PAPER

Advanced Design and Validation Techniques for Electronic Control Units

980199

View Details

TECHNICAL PAPER

In-Vehicle Communication Network Modeling and Simulation Environment - A Tool to Study the Vehicle Network Architecture and Vehicle EE System Architecture

2002-01-0446

View Details

X