AUTOSAR Automotive Open System Architecture can be defined as a common platform for the whole automotive industry that is designed to enhance the scope of application for vehicle functionality without affecting the current operating model. AUTOSAR is basically an open and standard software architecture which was jointly developed by automobile manufacturers, suppliers and tool developers. This unique architecture was developed in order to establish and maintain a common standard among the manufacturers, software suppliers, and tool developers so that the outcome of the process can be delivered without the need of any alterations. As the demand for the intelligent, safer and smarter vehicle increases the competition in the automotive industry will also increase. For example, a car has airbags, GPS system , Smart integration, etc.
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AUTOSAR Automotive Open System Architecture can be defined as a common platform for the whole automotive industry that is designed to enhance the scope of application for vehicle functionality without affecting the current operating model. AUTOSAR is basically an open and standard software architecture which was jointly developed by automobile manufacturers, suppliers and tool developers.
This unique architecture was developed in order to establish and maintain a common standard among the manufacturers, software suppliers, and tool developers so that the outcome of the process can be delivered without the need of any alterations. As the demand for the intelligent, safer and smarter vehicle increases the competition in the automotive industry will also increase. For example, a car has airbags, GPS system , Smart integration, etc.
All of these features are implemented on the different ECUs Electronic Control Units by different automotive industries, so all the different automotive units should able to work hand in hand to get the desired outlet.
This also helps in software development process, because until recent time the software developed for automotive industries was only focused on delivering the functionality of the system and they never cared about what are the effects it can provide to the system. It got more complicated due to a lot of functionalities over various ECUs across different vehicle networks.
It became a more critical problem with the increase in non-standard development procedures. Each of these layers has its own purpose and has a specific operation to perform. The AUTOSAR application layer consists of various applications and specific software components that are designed to perform a specific task as per the given instructions.
The application layer comprises three of the most important components that should be taken into consideration.
They are application software components, ports of these components and port interfaces. The software components ensure the functionality of the subsystem, which involves the operations and data elements that the software requires and the resources needed by the components.
And the source of the application is independent of the location of the interactive components, the type of ECUs on which the component is mapped on and the number of times the component is instantiated in a system.
The runtime environment layer creates a suitable environment for the operation of the software components SWCs. It can be considered as the communication center between the ECUs that are within the network. It helps the software components to operate independently of the communication mechanisms and channels. The RTE is making this possible by mapping the communication relationships between components that are implemented in the different templates, to a specific Intra communication mechanism like call or an inter ECU communication mechanisms like a COM message.
RTE has the responsibility of managing the life cycle of the SWC, It should startup and shutdown the functions based on the needs. It has resulted in an ASW component specified header that we can include in the source code. The Basic Software layer can be defined as the standardized software that can provide services to the AUTOSAR software components and it is also used to run the functional part of the software.
The Basic software includes the standardized and ECU specified components. It is the topmost layer of the basic software layer, It provides the basic software modules to the application software and it is independent of the micro-controller and ECU hardware. This layer acts as an interface of the micro-controller abstraction layer which also contains some drivers of external devices. It has access to the peripherals and the devices no matter where they are located either inside or the outside of the micro-controller.
It also offers the API to interface with the micro-controller. Microcontroller layer is the access route to communicate with the hardware. This layer was framed in order to avoid direct access to micro-controller registers. The micro-controller Abstraction Layer MCAL is a hardware layer designed to ensure the standard interface to the components of basic software.
It provides micro-controller independent values for the components of the basic software and also manages the micro-controller peripherals. This layer has special timing and functional requirement for dealing with complex sensors and actuators. The complex functions include injection control, Control of electrical values, Position increase detection, etc.
AUTOSAR was created for certain reasons that are helpful for the present and which will be helpful in the future also, some of the objectives are listed below. It is more flexible to adapt for different designs and also reduces the time and cost of production. Suppliers: Suppliers can increase their efficiency of functional development and create their own business model that is suitable for them. New Market Entrant: For the new entrants AUTOSAR acts as a transparent and defined interface that can help them understand the industry standards and also to create their own business models.
Since it is versatile and flexible you can do many things from it apart from that, some of the basic outcomes that the AUTOSAR can give you are the ability to reuse the software in it for multiple units and the software used can be exchanged whenever it is needed to, AUTOSAR acts as a standard platform for all the vehicle softwares and it has no application of its own.
It has an OS with basic functions and interface softwares and the main advantage is that the same interface can be used in all basic software. Get Our Weekly Newsletter! Helena St. Related Content. Comments Log in or register to post Comment.
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The design model uses application software components which are linked through an abstract component, named the virtual function bus. The application software components are the smallest pieces of application software that still have a certain functionality. The software of an application can then be composed by using different application software-components. By only defining the interfaces, there is still freedom in the way of obtaining the functionality. The virtual function bus connects the different software components in the design model. This abstract component interconnects the different application software components and handles the information exchange between them.
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It pursues the objective to create and establish an open and standardized software architecture for automotive electronic control units ECUs. Goals include the scalability to different vehicle and platform variants, transferability of software, the consideration of availability and safety requirements, a collaboration between various partners, sustainable use of natural resources, and maintainability during the whole product lifecycle. In , work on the Adaptive Platform began. A first release was published in early , followed by release in October [5] and release in March AUTOSAR provides a set of specifications that describes basic software modules, defines application interfaces and builds a common development methodology based on standardized exchange format. Basic software modules made available by the AUTOSAR layered software architecture can be used in vehicles of different manufacturers and electronic components of different suppliers, thereby reducing expenditures for research and development and mastering the growing complexity of automotive electronic and software architectures.