PREEvision – The E/E Engineering Solution

Use Cases

Architecture Design

Design and assessmet of E/E architectures and fast evaluation of design alternatives. Multidimensional criteria for success can be freely defined, to develop a cost-optimized and robust E/E system.

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Product Line Approach

Libraries and reuse of designs ensure efficiency in E/E development. Model series or individual vehicles can be derived from product lines using variant management.

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Requirements Engineering

Seamless interworking of requirements with all development artifacts in the model extends PREEvision far beyond the functions of a classic requirements management tool.

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AUTOSAR System Design

PREEvision is a component of the AUTOSAR tool chain from Vector and supports development of software and hardware architectures and communication design while incorporating many AUTOSAR concepts.

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AUTOSAR Communication Design

PREEvision supports the AUTOSAR compliant communication design of all data elements transferred over the bus. Supported bus technologies are CAN, CAN FD, LIN, FlexRay and Ethernet.

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Automotive Ethernet Design

Designing Ethernet networks and clusters including the corresponding communication. The model-based engineering environment also enables service-oriented architectures for embedded software systems.

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Highlights Version 9.0

AUTOSAR Adaptive

PREEvision 9.0 enables developers to model their E/E systems based on AUTOSAR Adaptive Platform. Whether engineers are designing service interfaces and applications, instantiating services or describing Ethernet communication via SOME/IP – this latest version provides comprehensive functions for these tasks. Data exchange is simplified by import and export functions for the Adaptive System Description and other work products of AUTOSAR for the new generation of high-performance Electronic Control Units.

AUTOSAR Variant Management

In addition to its well-established concepts for variant management, PREEvision now also allows variant management according to AUTOSAR. PREEvision supports AUTOSAR feature models, feature selections and feature maps to define the range of possible variants. With system constants, post-build variant criterions and variation points, predefined variants can be designed, activated and highlighted. Dedicated new diagrams are available for feature maps and variation points. Table based editors complete the specification of AUTOSAR variants.

State Chart and Class Diagrams

PREEvision 9.0 offers additional SysML and UML diagrams as modeling tools.

PREEvision 9.0 offers additional SysML and UML diagrams as modeling tools for functions, including those that will be deployed in service-oriented architectures. Designers can use the class diagram, for example, to model interfaces and data types.

The state chart diagram graphically depicts a system’s mode of operation. The two new diagrams supplement block, package and use case diagrams which have been included in previous PREEvision releases.

Review and Vote

To facilitate cooperation within the organization and with suppliers, PREEvision extends the process support with mechanisms to review and vote requirements and other model artifacts. Agreement projects can be set up by selecting model artifacts and resources that review the respective artifacts. A dedicated chat view allows discussions amongst the participants.

Configuration

Products and Product Options

Vector offers different PREEvision products to compose the optimum configuration for your use cases:

PREEvision Architect supports all modeling layers for product lines; PREEvision Function Designer and PREEvision Electric Designer support subareas.

The PREEvision Collaboration Platform is the add-on for team operation, change management and product and release management. The PREEvision Server API enables the development of web applications to visualize model contents.

Knowledge

E/E Engineering at the Vector Congress 2018

Recommended Publications

Service-Oriented Architectures and Ethernet in Vehicles

Towards data centers on wheels with model-based methods

Service-oriented architectures (‘SOAs’) have been used for years in the IT industry to describe and structure distributed systems. However, service-oriented design is also becoming extremely significant in the automobile industry: how else can customers’ increasingly urgent demand to adapt the scope of functions of the automobile, similar to the possibilities of today’s smartphones, be met reliably? It is also necessary to handle additional requirements from model maintenance and to introduce technology such as autonomous driving and vehicle-to-X communication.

The development tool PREEvision supports the methodical, consistent design of a service-oriented architecture. The user is guided from the definition of the service interfaces, through specification of the interaction of services, to an AUTOSAR compliant Ethernet design through an integrated workflow. If other bus technologies such as CAN, LIN, or FlexRay are also to be used in addition to Ethernet, mixed topologies can also be designed. Thus PREEvision accompanies the system designer through the challenging task of combining classic embedded design with modern service orientation and the necessary back-end communication – and thereby supports the transformation of the automobile into a data center on wheels.

Translation of a German-language publication: "Elektronik automotive", special "Ethernet" 2017

E/E Development for Future Vehicle Innovations

An integrated, model-based approach from architecture design to series production

The development of modern electric/electronic (E/E) architectures is a challenge today more than ever. Numerous development criteria must be taken into account, and classic vehicle domains need to be linked to new functions in the areas of driver assistance and autonomous driving. Completely new functions that are no longer limited to just the vehicle, but are also provided as services in the "IT backend" outside the vehicle, are emerging here.

The introduction of service-oriented architectures and powerful domain computers, Ethernet to on-board communication, connectivity gateways and, last but not least, increasing safety and security requirements represent profound and radical changes for every development organization. To master these complex development tasks successfully as a team, a development platform and E/E database, which can be implemented in different ways, are required.

Translation of a German-language publication: "ATZ elektronik", issue 6/2016