ELECTRIC VEHICLE AND INSULATION STATE DETERMINATION METHOD FOR ELECTRIC VEHICLE

摘要

Provided is an electric vehicle including an electric system that generates drive power, a detector, and a controller. The electric system includes a power storage device, a drive device that uses power of the power storage device to generate drive power, a first relay provided between the positive electrode of the power storage device and the drive device, and a second relay provided between the negative electrode of the power storage device and the drive device. The detector is electrically connected to the power storage device and detects an insulation abnormality in the electric system. The controller determines the insulation state of the electric system on the basis of a detection result of the detector obtained when the first relay and the second relay are open and a detection result of the detector obtained when either of the first relay and the second relay is thereafter closed.

主权项

1. An electric vehicle comprising:
an electric system configured to generate drive power, the electric system comprising:
a power storage device;a drive device configured to use power of the power storage device to generate drive power;a first relay provided between a positive electrode of the power storage device and the drive device; anda second relay provided between a negative electrode of the power storage device and the drive device; a detector configured to detect an insulation abnormality in the electric system, the detector being electrically connected to the power storage device; and a controller configured to determine an insulation state of the electric system on the basis of a detection result of the detector obtained when the first relay and the second relay are open and a detection result of the detector obtained when either of the first relay and the second relay is thereafter closed.