Modeling Transient Control of a Turbogenerator on a Drive Cycle

GTDI engines are becoming more efficient, whether individually or part of a HEV (Hybrid Electric Vehicle) powertrain. For the latter, this efficiency manifests itself as increase in zero emissions vehicle mileage. An ideal device for energy recovery is a turbogenerator (TG), and, when placed downstream the conventional turbine, it has minimal impact on catalyst light-off and can be used as a bolt-on aftermarket device. A Ricardo WAVE model of a representative GTDI engine was adapted to include a TG (Turbogenerator) and TBV (Turbine Bypass Valve) with the TG in a mechanical turbocompounding configuration, calibrated using steady state mapping data. This was integrated into a co-simulation environment with a SISO (Single-Input, Single-Output) dynamic controller developed in SIMULINK for the actuator control (with BMEP, manifold air pressure and TG pressure ratio as the controlled variables). Transient verification with WAVE-RT was conducted on WLTP and NEDC drive cycles, estimating dynamic energy recovery and fuel consumption improvement. Hints are given for a more advanced MIMO (Multiple-Input, Multiple-Output) control system architecture and calibration.

• Record URL:
  • https://doi.org/10.4271/2022-01-0415
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Petrovich, Simon
  • Ebrahimi, Kambiz
  • Mason, Byron
  • Watson, Andrew
• Conference:
  • WCX SAE World Congress Experience
  • Location: Detroit & Online Michigan, United States
  • Date: 2022-4-5 to 2022-4-7
• Publication Date: 2022-3-29

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 2405-2411
• Serial:
  • SAE Technical Paper
  • Volume: 4
  • Issue Number: 6
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Computer architecture; Control systems; Engines; Fuel consumption; Hybrid vehicles; Pressure; Simulation
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01841701
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2022-01-0415
• Files: TRIS, SAE
• Created Date: Apr 6 2022 2:18PM