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Electrical network simulation model development
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LTTS US Branch
Dublin, Ohio
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Job Description
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Job Description & Skill Requirement:
Details: Constructive comprehensive full-vehicle simulation models in the electrical circuit domain. Work with the simulation model development engineer and with the design/test departments to integrate multiple unit and component models to the full-vehicle simulation. Use industry tools such as Ansys Twinbuilder, Matlab Simulink, and NGspice to simulate required static and dynamic conditions of vehicle electrical systems including power, signalling, and user functions. A key distinction is that the Electrical Network Simulation Engineer owns system behavior, integration, validation, and decisions, while the modelling engineer or suppliers own the detailed component models.
1. Vehicle‑Level Simulation Strategy & Governance
Full‑Vehicle Electrical Simulation Strategy
- Vehicle program-level simulation objectives and scope
- Definition of required component model fidelity (architectural, predictive, real‑time)
- Acceptance criteria for externally developed component models
- Alignment with OEM V‑model milestones
Simulation Governance Framework
- Rules for model ownership, handoff, version control, and reuse
- Interfaces between component model owners and system simulation
- Escalation paths for model quality, performance, or integration issues
2. Vehicle Electrical Architecture Ownership
Vehicle‑Level E/E Architecture Simulation Model
- Power distribution topology (12V / 48V / HV; centralized or zonal)
- ECU power domains, grounding strategy, protection philosophy
- Integration of carry‑over and newly developed subsystems
Architectural Assumptions & Constraints Document
- System‑level assumptions imposed on component models
- Required interface behavior (pins, signals, power states, faults)
- Explicit documentation of what is modeled vs. abstracted
3. Component Model Integration & Oversight
Component Model Integration Specifications
- Required formats (SPICE, system‑level blocks, FMUs)
- Interface definitions (causality, I/O, parameters, units)
- Performance and numerical stability requirements
Model Acceptance & Readiness Reviews
- Technical review of supplier or internal component models
- Verification against interface contracts and expected behavior
- Approval for integration into full‑vehicle simulations
Model Compatibility Matrix
- Supported tool versions and solvers
- Known limitations and interaction risks between models
4. Full‑Vehicle Electrical System Models
Integrated Full‑Vehicle Electrical Network
- Assembly of batteries, power electronics, ECUs, and loads
- Harness‑level effects (voltage drop, shared grounds, protection)
- Variant handling (trim levels, regions, propulsion variants)
System‑Level Abstraction Layers
- Reduced‑order or averaged representations for large‑scale studies
- Fidelity switching strategy (architecture vs. transient vs. real‑time)
5. Co‑Simulation & Digital‑Thread Integration
Multi‑Domain Co‑Simulation Setup
- Electrical-controls-thermal interfaces
- Synchronization strategy and solver coordination
- Interfaces to vehicle dynamics and energy management models
FMI / FMU Integration Deliverables
- System‑level or subsystem FMU assemblies
- Validation of interfacing behavior between FMUs
- Tool‑agnostic deployment for downstream teams
6. Vehicle Operating Scenarios & Studies
Standard Automotive Use‑Case Results
- Startup, shutdown, sleep/wake cycles
- Cold crank, peak load, load dump, brownout
- Charging and regenerative braking behavior
Trade Studies & Design Decisions
- Architecture alternatives (e.g., zonal vs. domain)
- Energy flow and power budgeting studies
- Sensitivity analyses across variants and environments
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Job Requirement
Use industry tools such as Ansys Twinbuilder, Matlab Simulink, and NGspice for modelling in support of simulation for static and dynamic analysis
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