Integrated Simulation and Field Testing of Hybrid-Electric Vehicle Batteries

Principal Investigators: Drs. Chao-Yang Wang and Donald Streit
Sponsors: U.S. Defense Advanced Research Projects Agency (DARPA), Concurrent Technologies Corporation (CTC), Electrosource, Inc., Arbin Instruments, Penn State

Parallel computing facility for battery simulation

Dynamic state-of-charge (SOC) method

 

Project Objective

  • To provide a novel capability for battery designers and vehicle engineers through combined simulation and field testing.

Technical Approach

  • Develop simulation capabilities for battery packs using fast, robust, and versatile Computational Fluid Dynamics (CFD) techniques;
  • Conduct in-vehicle testing on dynamometer and PTI’s Test Track to validate CFD battery codes in real-world driving conditions;

Major Achievements

  • Developed and validated fundamental electrochemical and transport phenomena models for VRLA, Ni-MH and Li-ion cells.
  • Developed a parallel computing architecture to simulate battery packs with cell imbalance.
  • Proposed a new method to determine dynamic SOC.
  • Established in-laboratory, dyno and test track facilities to study VRLA, Ni-MH and Li-ion batteries.
  • Developed a portable or web-based simulation environment for computer-aided battery design, optimization and applications.

Predictions from 2D, non-isothermal Li-ion battery model

Validation of Pb-Acid battery code against in-vehicle test data

 

Portable Battery Simulation Environment

Hybrid-Electric Test Vehicle

 

Objective

  • To provide a new capability for battery designers and application engineers through combined simulation and field testing

Goals

  • Develop simulation capabilities for battery packs using fast, robust, and versatile Computational Fluid Dynamics (CFD) technology;
  • Conduct in-vehicle testing on PTI's Test Track to help code development;
  • Demonstrate the ability of CFD battery codes in predicting battery pack performance in real-world driving conditions;
  • Demonstrate applications of validated battery codes to integration and interfacing of the battery system with the vehicle;
  • Develop a portable simulation environment to assist battery manufacturers and vehicle builders in computer-aided battery design, optimization and applications.

Benefits

  • Establish a cost-effective procedure for future battery design and application engineering by combining first-principle simulation with field testing;
  • Provide high-fidelity battery simulators for design and simulation of military and commercial HEVs;
  • Help develop human resources for the emerging EV industry: Penn State Center for Energy Storage Technologies, a DOE Graduate Automotive Technology Education (GATE) Program to provide a gateway for future stars of the U.S. automotive industry.


Status

  • Just started

Sample Prediction of A Pb-Acid Battery Under SFUDS

Penn State Test track Facility

 


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