AUTOSAR Classic Platform
The Production-Proven Standard for In-Vehicle ECUs


AUTOSAR (Automotive Open System Architecture) is a standardization initiative of leading automotive manufacturers and suppliers that was founded in 2003.

With the rising number of complex functions, the develop­ment of in-vehicle electronics is becoming increasingly broader in scope and more complicated. The idea behind AUTOSAR is to avoid continually re-developing the same or similar software components. The worldwide development partnership has set the goal of establishing an open standard for the system architecture in the automotive industry.

Reduced development effort and improved quality are important reasons for introducing a uniform and producer independent system platform. Hardware and software are decoupled from one another to assure such results. The AUTOSAR concept is based on modular components with defined interfaces.

AUTOSAR Adaptive Platform

The AUTOSAR development partnership has added a new standard to its portfolio which is based on POSIX operating systems: the AUTOSAR Adaptive Platform. The primary motivations for the new platform are autonomous driving, Vehicle-to-X (V2X) applications and the growing external networking of vehicles (Connectivity).

The previous standard will continue to be offered under the name AUTOSAR Classic Platform.

All information about AUTOSAR Adaptive


AUTOSAR Fundamentals

In AUTOSAR, the ECU software is classified as basic software (BSW), runtime environment (Rte) and application layer.

Basic elements of the AUTOSAR architecture are, among others, formally defined software components (SWC) with clearly specified interfaces to the basic software (BSW) that in turn provide fundamental standard services, such as bus communication, memory management, IO-access, system and diagnostic services. Another basic element is the runtime environment RTE that connects the SWCs with the BSW.

The Virtual Functional Bus (VFB) specified by AUTOSAR delivers the conceptual foundation for the communication of SWCs with each other and the use of BSW services. The development of the SWCs is based on the VFB. In this manner, the SWCs are independent of the ECU hardware. This makes them easier to reuse and integrate into different projects on different platforms. The VFB is implemented in a specific vehicle by using a specifically configured RTE together with a suitably configured BSW for each ECU.

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AUTOSAR Workflow

During system design, the architecture of the functional software is determined. This is done by defining SWCs and their distribution over the ECUs. Network communication is also determined in this step. The result is the system description – an AUTOSAR XML file from which one generates a specific ECU extract of system description for every ECU.

During ECU development, the SWCs are designed and implemented and the BSW and RTE are configured. The developer determines the necessary amount of basic software for his project by configuration. In this manner, he can optimize the entire ECU software. The result of the configuration is an ECU Configuration Description (AUTOSAR XML file) that is tuned to the ECU Extract of System Description.

Based on the ECU Configuration Description, code generators generate and/or adapt the BSW for the ECU software. The RTE is also created in an ECU-specific manner.

This method defined in AUTOSAR significantly simplifies the integration of application software into an ECU. Manual software adjustment becomes unnecessary.

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The challenge:

  • E/E complexity is growing fast
  • Quantity of software is exploding
  • Many different hardware platforms are used
  • Development processes and data formats are not harmonized

The main objectives of AUTOSAR:

  • Improve software quality and reduce costs by re-use
  • Re-use of functions across carlines and across OEM boundaries
  • Re-use of development methods and tools
  • Re-use of basic software
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The Vector AUTOSAR Solution


Vector provides a field-proven AUTOSAR solution which is tuned to your needs – offering a comprehensive tool range of design and development tools, ECU software and services around AUTOSAR. Depending on the supported OEM you get the Vector AUTOSAR solution MICROSAR for the AUTOSAR releases 3.x and 4.x


  • Seamless tool chain: from system design to functional software development and integration of the software in your ECU
  • A comprehensive package of basic software for the AUTOSAR Classic Platform 4.x, 3.x plus AUTOSAR Adaptive Platform from a single source
  • Basic software available for many hardware platforms and automotive OEMs
  • A reliable solution certified by exida up to ASIL D for safety-relevant ECUs per ISO 26262
  • In production use at leading OEMs and TIER1 suppliers in numerous projects
  • Stepwise migration without loss of quality is possible

AUTOSAR Tool Chain

Benefit from a practice-proven and universal tool chain for developing AUTOSAR ECUs.

AUTOSAR Basic Software

MICROSAR is the embedded software for your AUTOSAR ECUs. It consists of the runtime environment MICROSAR RTE and MICROSAR basic software modules (BSW). They cover the entire AUTOSAR standard and contain a lot of useful extensions.


PREEvision PREEvision supports you in creating AUTOSAR-conformant system and software designs.
With CANdelaStudio you define the diagnostic specification of your AUTOSAR ECU.
DaVinci Developer lets you design or fine-tune the AUTOSAR SWCs of your ECU.
vVIRTUALtarget pro Verify the implementation of your AUTOSAR SWCs in a virtual environment on your PC.
The basic software modules and the RTE are configured with DaVinci Configurator Pro.
Execute the integrated AUTOSAR code on a PC by using vVIRTUALtarget basic as a virtual ECU.
TA Tool Suite Tools for the design, simulation and verification of embedded multi-core realtime systems.
This CANoe option provides you access to the internal memory of an AUTOSAR ECU.
Use CANoe to test the AUTOSAR ECU and to validate the AUTOSAR network communication.
Use CANape to calibrate the parameters of your AUTOSAR ECU.


AUTOSAR Services

Reach Your Goals Faster

Powerful architectures and increasing standardization enable the integration of software from different suppliers in the ECU. This is the approach of AUTOSAR.

This opens up new possibilities for developing software efficiently and designing functions that are distributed across multiple ECUs. With our AUTOSAR services, we support you at every stage of your ECU development.

Based on the existing AUTOSAR competence and the desired goals, we plan and implement an individual package of measures together with you.

Your advantages: Increasing your development activities and developing AUTOSAR know-how in your organization.

Take advantage of our AUTOSAR expertise by:

  • Training and Workshops
  • Consulting and Coaching
  • Integration Support for the MICROSAR Basic Software
  • Project Reviews

Our experienced engineers will be happy to take on part tasks within your ECU project or realize your entire project.

Further details can be found in the product information (PDF).

E-Learning Module

The Vector Academy provides an E-Learning module for AUTOSAR free of charge. It is intended for all persons who wish to acquire an overview of the goals of AUTOSAR. Along with the fundamental AUTOSAR concepts, it also discusses methodology and typical migration scenarios.

Essential Know How for Your Development

The clearly structured AUTOSAR Poster in DIN A1 format gives you important technical details on the AUTOSAR Classic R19-11 (4.5) method. Among other things, the poster illustrates the following topics:

  • AUTOSAR system design
  • Layer model
  • Mode management, multi-core and safety
  • Secure variant coding (certificate handling)
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AUTOSAR Glossary front cover

To support a common understanding of the AUTOSAR software modules, we have compiled all important terms from the AUTOSAR specifications R19-11 (4.5), 4.4, 4.3, 4.2, 4.1 and 4.0 in German and English in this AUTOSAR Glossary.

  • Part 1: Introduction into AUTOSAR
  • Part 2: Description of AUTOSAR work products and activities
  • Part 3: Description of AUTOSAR Basic Software Modules (BSW)
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Qualification Program Vector Certified Embedded Professional

Extensive software skills are one of the most important qualifications for the successful implementation of projects today. Whether supplier or engineering partner - the competence of employees represents an important competitive advantage. That is why Vector offers unique certification programs for embedded software engineers. Engineers are being trained as experts in Vector's basic software and the corresponding software tools. The Vector degree enables qualified and efficient support in demanding AUTOSAR Classic projects. Through close contact with the Vector experts, further knowledge transfer is assured.

More Know How

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Do you have technical questions and are looking for suitable answers? Our KnowledgeBase provides the most important!

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AUTOSAR Workshop | 1-5 days

Do you want to know more about the basics of AUTOSAR and the AUTOSAR basic software and tools? Vector offers a 1-5-day modular AUTOSAR workshop. This deals with AUTOSAR 4 and AUTOSAR 3 alternately. According to the booked module...

  • You get to know the AUTOSAR methodology
  • You gain insights in all major subject areas of the ECU development
  • You get to know the specifics of some vehicle manufacturers
  • MICROSAR safe is presented - the Vector solution for safety-related ECUs according to ISO 26262.


Technical Sales Embedded Software and AUTOSAR

Technical Sales Embedded Software and AUTOSAR

Visitor Address: Holderäckerstr. 36
70499 Stuttgart

Phone: +49 711 80670 400
Fax: +49 711 80670 425