Re-architecture of Engine Management System software compliant to AUTOSAR

Re-architecture of Engine Management System software compliant to AUTOSAR

Business Situation
Business Situation
One the largest automotive manufacturers with subsidiaries in multiple geographies had to develop a multi-variant engine and needed a next-gen platform for Powertrain software architecture. The new architecture had to be built basis the current legacy functionality which led to multi-fold challenges such as refactoring legacy issues, deployment of architecture workflow among others. The new software architecture being developed also had to be AUTOSAR compliant.
OEM was looking for a partner with proven competency in Model Based Development and AUTOSAR in addition to strong vehicle production program experience.
In KPIT, the OEM found a trusted technology partner with deep domain expertise. The client could also leverage KPIT's previous experience of working with range of tools to manage complex software programs through global delivery model and execution excellence
Solutions
Leveraging Design for Six Sigma (DFSS) methodology, KPIT came up with a robust execution strategy as below:
The project was divided into four phases:
Phase 1:
Diagnosis
VOC interviews across Departments
Analysis to identify Critical Functional Requirements (CFRs) from VOC inferences
Architecture, Workflow & Tools Approaches
Reports like driver scorecard can be generated to make an in-depth comparison and analysis
Phase 2:
Architecture Tools and Framework
New System Architecture Guidelines
Standard Compliance for System Architecture
Tools Evaluation, Selection and Set-up
Central Data Dictionary (DD) Customization
MBDE Workflow Development & Tool Adaptation
Plan for Pilot Program and Compliance to ISO 26262
Phase 3
Feature Migration
Migration of existing features to prove the new architecture
Standards Compliant application modeling for migrated features
Central DD Integration
Phase 4
Deployment
HIL Testing
Vehicle Testing, Calibration
Application migration followed a top down/round trip approach which involved up-front system decomposition and began with future architecture requirements including product strategies. Building blocks created from decomposed system were used as a starting point and existing behavioural software and models were mapped to them. Conflicts and gaps in existing architecture were identified earlier thanks to the up-front definition of requirements.
 
 
Challenges Faced
Application Migration:
Decomposition of the System/Control architecture during initial phase of migration was iterative in nature.
Re-factoring led to introduction of new software and changes in legacy software. Adoption of these were challenging.
Workflow Management:
Integration of Simulink model design workflow with architecture design to address the dynamic changes during model design
Key Differentiators
KPIT's deep domain expertise in AUTOSAR and Powertrain
Integrated tool strategy for various phases of the project lifecycle
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CIN: L72200PN1990PLC059594