Navistar, Inc. • Lisle, IL 60532
Job #2665792963
Position Overview
Our ePowertrain Team is growing and we have a great opportunity for HV Battery ESS (Energy Storage System) Modeling Engineer.
The engineer in this position will lead rechargeable energy storage system (RESS) modeling efforts, including the creation, integration, maintenance, execution, improvement, and validation of HV Battery models.
This is a hybrid position based in our Rochester Hills, MI, Lisle, IL or San Antonio, TX locations.
Responsibilities
Development of cell-to-system electrical (and possibly physics & thermal) multi-parameter models and tools to assess RESS performance and predict behavior response, including but not limited to: SOC, SOP, SOH, voltage, current, and heat-rejection
Scale models from cell to module to pack and vis-versa
Simulate representative vehicle drive cycles, charging, and book-end conditions
Validate HV battery models using cell and/or battery pack level characterization test data and vehicle meta-data. Calibrate and fine-tune RESS models and simulations to increase accuracy and confidence.
Assess fidelity of supplier-provided models for ease-of integration, correlation, confidence, and accuracy. Work with supplier to correct model issues and implement improvements based on all available data & feedback.
Work with the performance engineering team to integrate RESS models with propulsion and vehicle models
Collaborate with cell engineering team on design of experiments to capture cell parameter data required for modeling efforts
Collaborate with our TRATON partners and the OnCommand Connection group on battery analytics, including: RESS remote diagnostics, data acquisition, prognostics, and life estimation
Utilize vehicle meta-data to optimize DoE and the number of cell, pack, and vehicle test-cases, by generating representative synthetic cycles
Develop tools to optimize energy, power, and thermal energy flow using systems engineering principles
Develop excel or script-based tools for static computation of ESS power, energy vs SOC and Temperature
Develop tools and/or scripts to pre and post-process vehicle data as required
Provide input and feedback on ESS design requirements - including requirements for cell throughput, power, and energy
Work with our TRATON partners to optimize modeling and simulation processes, tools, and strategies
Minimum Requirements
Bachelor's degree in Engineering or Engineering Technology
At least 5 years of experience in product design/development
OR
Master's degree in Engineering or Engineering Technology
At least 3 years of experience in product design/development
OR
Additional Requirements
Desired Skills
Engineering degree, preferably with an emphasis on modeling work, MS or PhD preferred
Strong understanding of battery chemical processes and equivalent circuit modeling
Ability to apply system identification methods to identify key parameters of transfer functions for dynamic RESS models & transient behavior
Ability to evaluate and apply different RESS model structures & equivalent circuit models to capture system dynamics & behavior
Working experience on modeling and simulating cells, modules, and HV Energy Storage Systems
Strong, multi-year experience with Matlab/Simulink, GTSuite, Python, COMSOL, ASIM, and/or other modeling tools
Ability to script large workflows for efficient execution
Experience with vehicle and system data acquisition tools and software (CANalyzer/INCA)
Ability to aggregate and process large amounts of data into clear and concise output formats (graphs/PowerPoint slides)
Able to clearly communicate complex concepts to leadership via email, PowerPoint, and live presentations
DFSS green or black-belt certification preferred
Proactive self-starter behavior is expected; must be able to deal with ambiguity and be able to effectively manage his or her time
Patience and willingness to teach skills to others is a desired trait for this position
Must be able to collaborate and work well in teams, including across brands and time-zones
Experience with battery life modeling a plus
Company Overview
Navistar, Inc. ("Navistar") is a purpose-driven company, reimagining how to deliver what matters to create more cohesive relationships, build higher-performing teams and find solutions where others don't.
Based in Lisle, Illinois, Navistar or its subsidiaries and affiliates produce International® brand commercial trucks and engines, IC Bus® brand school and commercial buses, all-makes OnCommand® Connection advanced connectivity services, and Fleetrite®, ReNEWeD® and Diamond Advantage® brand aftermarket parts.
With a history of innovation dating back to 1831, Navistar has more than 14,500 employees worldwide and is part of TRATON SE, a global champion of the truck and transport services industry. Additional information is available at ~~~.
Accelerating the Impact of Sustainable Mobility
Visit us at ~~~ to discover more about our organization
Navistar is an Equal Opportunity Employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics.
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