Synopsys Saber™ is a solution of high-performance virtual prototyping tools for multi-domain power electronics design that consists of SaberRD, SaberEXP, and SaberES Designer. Saber allows an engineer to run complex simulations with varying component tolerances, generate best and worst-case results, and easily conduct “what-if” studies. Industry-leading accuracy lowers development costs by reducing the number of prototypes required.
SaberES Designer is a wiring harness tool for optimizing wiring layout, materials, and costs, and can be integrated with industry CAD systems. This software provides a solution for wiring harness design challenges to ensure data consistency, data integrity, and design validation. This solution, also called as the top-down “connected” design flow, is built on a single design ESD database shared by all teams, ensuring consistency across all parallel projects.
It allows designers to choose content and parts from approved libraries and databases, ensuring correct-by-construction design while integrating the systems. The extensive capabilities for design generation, validation, and multi-domain verification lead to higher design quality and better electrical system robustness. The top-down generative flow improves the designer’s productivity, saving resources and reducing TTM. The single, unified database addresses the lack of system integration in the traditional flow. By using approved parts and maintaining consistency, the integration process is much smoother. There is no “big merge” step where numerous issues are uncovered.
The top-down flow also makes it much easier to share an architecture platform and to create concurrent variations for individual design projects. The shared database represents a “200% design” in which all possible options for the electrical system exist. As designers work on a new project, they use assembly filters to create a unique product. This makes it easy to choose among the available options to create modular and composite wiring harnesses. The filters are reused throughout the development process, including generating netlists for circuit simulation, exporting data to a 3D MCAD tool, and generating the manufacturing outputs.
The database and flow are shared by a diverse group of users. In addition to the roles managed by designers, other roles include the librarian who maintains the symbols and other information in the company library, the administrator who controls which users can access and change which data, and superusers who can make fundamental changes in the architecture platform. The design flow must be highly customizable, including adding additional types of libraries and controlling data access to follow company and project policies. Superusers have a lot of flexibility in tailoring the solution to fit the needs of the other users. SaberES Designer can handle such complexity seamlessly and is the preferred wiring harness design tool used by for several OEMs.
The common database means that all changes are available to all users immediately. There is no need for time-consuming manual import or export and no risk of data corruption by external interchange formats. Informational messages about changes are sent to the users, who assess the impact on their specific areas of the design. Users are alerted when design updates are required.
The only way to avoid unpleasant surprises when physical prototypes are built is through verification using circuit simulation. The goal is to “shift left” the design process by identifying any issues at the earliest possible project stage. For SaberES Designer, the simulator is a built-in solution so that users can readily try out options and variant combinations. This improves circuit robustness and quality, and it also enables “what-if” exploration of the design space. Simulation can analyze far more design permutations than building and testing multiple physical prototypes.
This allows the designers to right-size the electrical system and load-balance across the wiring harnesses and electrical components. The built-in simulator supports the following:
- DC simulation
- DC/voltage drop analysis
- Connectivity checking
- Fuse/wire sizing checks
The built-in simulator also supports transient simulations, variation and reliability analysis for robust design, and fault analysis to meet the requirements of the ISO 26262 functional safety standard.