Architecture & Design of Common Hybrid Torque Controls within a Powertrain Domain Controller FCA US LLC

Format:

Book

Conference/Event

Author/Creator:

Patel, Nadirsh, author.

Contributor:

Madireddy, Krishna

Sha, Hangxing

Tuller, Zachary

Conference Name:

WCX SAE World Congress Experience (2023-04-18 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2023

Summary:

The proliferation and increased complexity of electrified powertrains presents a challenge to the associated controls development. This paper outlines the strategy of common supervisory and domain torque management for such powertrains. The strategy covers the multitude of powertrain architectures that exist in the market today while maintaining the fundamental pillars of physics-based torque controls, state-of-the-art optimization methodologies, and common-core hybrid system constraints.The electrified powertrain torque controls that Stellantis LLC. uses include key constituents such as optimization of powertrain state that relate to optimum engine speed and transmission gear, optimization of engine and motor torques, engine start-stop management, and hybrid shift execution which manages powertrain state transitions by interacting with various external transmission systems. The common backbone of these constituents are the dynamic/kinematic equations of the powertrain. Centralizing these dynamic and kinematic equations within the control structure allows for the downstream control constituents mentioned above to remain common for all electrified powertrain architectures. An added benefit of this strategy is the streamlining of calibration methodology and effort

Notes:

Vendor supplied data

Publisher Number:

2023-01-0549

Access Restriction:

Restricted for use by site license