Systems and Methods For Determining A Duty Cycle For A Variable Voltage Converter

摘要

A vehicle includes a traction battery, an electric machine, and a variable voltage converter. The variable voltage converter includes an inductor and is disposed electrically between the traction battery and electric machine. The vehicle also includes a controller programmed to issue duty cycle commands for the variable voltage converter based on a product of an AC component of current flowing through the inductor and a calibrated resistance.

主权项

1. A vehicle power system comprising:
a variable voltage converter (VVC) including an inductor; and at least one controller configured to, in response to a request to alter a duty cycle of the VVC, output a duty cycle command for the VVC based on an AC component of current flowing through the inductor, a calibrated gain having units of resistance, and an output voltage command for the VVC.