VEHICLE

摘要

When an electrical primary frequency of power fluctuation of a motor is smaller than a determination threshold value fth1 that is a lower limit frequency of a frequency band where resonance occurs in a circuit including a reactor and a capacitor of a boosting converter or greater than a determination threshold value that is an upper limit frequency of the frequency band where resonance occurs, a value G2 is set as a gain G and when the electrical primary frequency is equal to or greater than the determination threshold value fth1 and equal to or smaller than the determination threshold value, a value G3 at which the upper limit frequency of the resonant frequency band has a low frequency than the determination threshold value fth1 is set as the gain G and a current control in the boosting converter is executed using the gain G set in this way. The resonance of the circuit including the reactor and the capacitor of the boosting converter can be prevented.

主权项

1. A vehicle comprising:
a motor; an inverter for driving the motor; a battery; a boosting converter including a reactor and a capacitor and being connected to a first power line to which the inverter is connected and a second power line to which the battery is connected; and a controller that sets a target current of the reactor such that a voltage of the first power line becomes a target voltage and executes a current control in which the boosting converter is controlled using a gain such that a reactor current flowing to the reactor becomes the target current, wherein the controller sets the gain such that a frequency of power fluctuation of the motor based on a rotational speed of the motor becomes a frequency outside of a resonant frequency band where resonance occurs in a circuit including the reactor and the capacitor of the boosting converter when the current control is executed.