Fca US LLC

Andy M Lee

Nadirsh Patel

Zachary L Tuller

Barry A Mason

Naresh Sathyamoorthy

Allwyn D Bhakare

Cristian Rostiti

Dhruvang Rathod

Speed control techniques include, based on a set of target speed inputs indicative a target speed for an electric motor, determining a set of profiling inputs including (i) the target speed and (ii) a set of desired acceleration calibrations, performing jerk-based profiling based on the set of profiling inputs to determine at least one of an open-loop acceleration command and a profiled target speed, determining a closed-loop torque adjustment based on the profiled target speed and a measured speed of the electric motor, determining an electric motor torque command based on the open-loop acceleration command and the closed-loop torque adjustment, and controlling the electric motor based on the respective electric motor torque command to improve vehicle responsiveness in reaching the target speed.

Use of triangular numbers in calculation of jerk limited speed profile for determination of target speeds and feed-forward torque for speed controller

Intelligent battery depletion techniques for a range-extended electrified vehicle (REEV) include receiving at least (i) a state of charge (SOC) of a battery system of the REEV and (ii) a distance for a trip of the REEV, controlling an electrified powertrain (engine and electric motor) of the REEV to generate a drive torque to satisfy a driver torque request, based on at least the battery system SOC and the trip distance, determining, an optimized charge depletion or allocation profile for the trip for powering the electric motor/battery system, and controlling the electrified powertrain based on the blended charge depletion or allocation profile until the trip distance has been reached or the battery system SOC reaches a desired minimum level, and then transitioning to a charge sustaining mode where the engine generates the drive torque and maintains the battery system SOC at the desired minimum level.

Blended charge depletion and navigation-based charge allocation for range-extended electrified vehicles

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Troy, MI, United States of America

Andy M Lee