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Why Capital Network Designer?

Networks are central to modern vehicles, tightly linked to E/E architectures, software and electrical systems. As OEMs adopt domain, zonal and centralized compute architectures, network design grows more complex. SDV development requires integrated workflows across engineering domains to innovate.

Explore Capital Network Designer

Capital Network Designer reduces the cost and complexity of automotive network engineering by automating error-prone design tasks, ensuring correctness by design and supporting full range of protocols and concepts demanded by modern vehicle programs.

Core capabilities

  • Import and export for all major industry standards (ARXML, DBC, LDF, Fibex)
  • AUTOSAR Classic and Adaptive support
  • Native Polarion ALM connector for requirements traceability across the network design workflow
  • A rich and customizable consistency check framework with thousands of predefined design rule checks to ensure correctness-by-design
  • Automatic or manual signal and PDU routing
  • Scripting interface for workflow automation, including report generation, DBC/LDF generation and ECU extract creation, enabling integration into CI/CD pipelines
  • One-click generation of ECU signal interface, timing analysis and supplier reports
  • Variability support across all vehicle variants from a single superset design

Correctness by design

Capital Network Designer delivers high levels of design automation across the full network design workflow. Signals can be automatically packed into messages within the constraints of captured timing requirements and user configurations. SOME/IP synthesis automates the generation of service-oriented communication configurations, while a streamlined SOA workflow cuts the time from service definition to validated network configuration.

The ability to automate time-consuming, error-prone tasks enables OEMs to:

  1. Reduce network design costs and cycle times, accelerating the delivery of software-driven features to market
  2. Respond to the architectural shifts demanded by zonal consolidation and high-bandwidth Ethernet backbone designs
  3. Create scalable, cost-efficient networks without overengineering, while ensuring correct real-time communication behavior

Such automated, generative design capabilities enable design exploration, rapid network implementation, and incremental change management, essential as software content and feature scope expand throughout the vehicle lifecycle.

Timing requirements and analysis

Capital Networks is backed by a sophisticated mathematical timing model that helps network designers to ensure message delivery even in worst-case scenarios. It evaluates communication timing against captured signal requirements, verifying correct real-time behavior before a single physical prototype is built - significantly reducing the need for costly late-stage testing.

This capability is especially critical in modern SDV architectures, where latency-sensitive ADAS, chassis, and powertrain functions share bandwidth with high-volume service-oriented traffic. Bus load, link utilization, and end-to-end delay metrics give design teams full visibility and control throughout the design process.

Advanced network design for SDV and commercial vehicle architectures

Capital Networks supports the sophisticated network design concepts required by modern vehicle programs across the automotive and heavy equipment industries:

  • Advanced Ethernet support for AVB, Global Timing Sync, switch configuration, SOME/IP, DDS and service discovery
  • Safety and security mechanisms, including end-to-end protection (E2E) and secure on-board communication (SecOC)
  • Network Management (NM), Partial Networking (PN), and transport protocols CAN-TP, FlexRay-TP, LIN-TP and DoIP
  • Full J1939 support, including J1939 synthesis, addressing the specific network design needs of commercial vehicle, agricultural, and construction equipment OEMs.

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