Real time trajectory optimization for hybrid energy management utilizing connected information technologies

Patent · 14 September 2021

OSTI ID:1840436

Huang, Mike X.; Shibaike, Yushi; Zhang, Shengqi; Chen, Di; Stefanopoulou, Anna G.

The disclosure is directed to solving a full trajectory optimization problem in real-time for a hybrid electric vehicle (HEV) such that future driving conditions and energy usage may be fully considered in determining optimal engine energy usage and battery energy usage in real-time during a trip. An electronic control unit of the HEV may be configured to: receive route information for a route to be driven by the HEV; and after receiving the route information, iterating the operations of: measuring a current state of charge (SOC) of the battery; using at least the measured SOC and an initial co-state value stored in a memory, performing a process to iteratively update the co-state value to obtain an updated co-state value; using at least the updated co-state value, computing an updated control value; and applying the updated control value to control a usage of the battery and the internal combustion engine.

• Research Organization: Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (United States); Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• DOE Contract Number: AR0000837
• Assignee: Toyota Motor Engineering & Manufacturing North America, Inc. (Plano, TX); The Regents of the University of Michigan (Ann Arbor, MI)
• Patent Number(s): 11,117,567
• Application Number: 16/019,512
• OSTI ID: 1840436
• Country of Publication: United States
• Language: English