BOOST CONVERTER DEADTIME COMPENSATION

摘要

A hybrid powertrain system may include an electric machine, a battery back, a boost converter and at least one controller. The boost converter may include an inductor and be configured to receive input voltage from the battery back and provide an output voltage to the electric machine. The at least one controller may generate a duty cycle command for the boost converter based on a magnitude of input current to the boost converter and a magnitude of ripple associated with a current through the inductor such that for a given commanded voltage, an actual duty cycle for the boost converter changes depending on a direction of the current through the inductor to drive the output voltage to the given commanded voltage.

主权项

1. A hybrid powertrain system comprising:
an electric machine; a battery pack; a boost converter including an inductor and configured to receive an input voltage from the battery pack and provide an output voltage to the electric machine; and at least one controller programmed to generate a duty cycle command for the boost converter based on a magnitude of current input to the boost converter and a magnitude of ripple associated with a current through the inductor such that for a given commanded voltage, an actual duty cycle for the boost converter changes depending on a direction of the current through the inductor to drive the output voltage to the given commanded voltage.