Implementation of Adaptive Equivalence Consumption Minimization Strategy (a-ECMS) in GM Blazer 2019

Name: Vicente Vladimir Capito Ruiz

Abstract:
The EcoCAR Mobility Challenge is a four-year development cycle part of the Advanced Vehicle Technology Competition (AVTC). It focuses on improving fuel economy and increase safety on the vehicle while maintaining the consumer requirements. The following document presents an implementation of the adaptive Equivalent Consumption Minimization Strategy (a-ECMS) with minimization at real time in the dSPACE MicroAutobox II as the Hybrid Supervisory Controller (HSC). It details all the supportive algorithms that made this possible and goes in detail with the specific component to achieve the ECMS implementation. A big portion of the development was devoted to refining ECMS, so it shows all the iterations and edge cases that were found. ECMS was tested for 1400+ miles of vehicle testing (VIL) with 130k+ miles on virtual environments (MIL & HIL) to determine the best calibration parameters for the s-factor and the penalties to achieve the best fuel economy. Several comparisons are presented between the vehicle with ECMS and a stock vehicle. The ECMS vehicle showed an improvement of 6% fuel improvement in city cycles over the stock vehicle and 17% improvement over the standardized FTP Drive Cycle on a two-axis dyno.

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Committee Members
The Ford Motor Company Chair in Electromechanical Systems, Mechanical and Aerospace Engineering Giorgio Rizzoni
Clinical Professor, Mechanical and Aerospace Engineering Shawn Midlam-Mohler