Power boost system for electric vehicle

Abstract

An electrified vehicle includes an electric traction motor configured to generate drive torque, a high voltage (HV) battery system including a main HV battery for powering the electric traction motor under normal operating conditions, and an auxiliary energy storage system (ESS) configured to selectively provide power to the electric traction motor during a power boost mode. A control system includes a controller programmed to detect a driver selected command to operate the vehicle in the power boost mode, electrically connect the auxiliary ESS to the electric traction motor, and initiate the power boost mode, when one or more conditions are satisfied, by supplying power from the auxiliary ESS to the electric traction motor to enable the electric traction motor to operate with a higher power than what is available during the normal operating conditions with the main HV battery.

Dependencies are inferred from the claim text.