ELECTRIC VEHICLE

摘要

A hybrid vehicle includes a battery, a boost converter, a battery temperature sensor, a battery current sensor, a high-voltage sensor, and a control section. The control section includes an intermittent boosting operation program which stops the boost converter when a temperature of the battery is equal to or higher than a predetermined temperature and when an absolute value of a battery current is within a range of ±I0 and which restarts the boost converter when an actual boosted voltage is outside a range from VH2 to VH4, and a threshold switching program that switches the threshold range to ±I2 that is wider than the range of ±I0 and switches the range from the threshold VH2 to the threshold VH4 to a wider range from a threshold VH3 to a threshold VH5 when the battery temperature is lower than the predetermined temperature.

主权项

1. An electric vehicle comprising:
a battery; a boost converter connected to the battery; an inverter connected to the boost converter; a motor generator connected to the inverter; a temperature sensor that detects a temperature of the battery; a current sensor that detects a current in the battery; a voltage sensor that detects an actual boosted voltage provided by the boost converter; and a control section that starts and stops the boost converter, wherein the control section comprises: intermittent boosting operation means for stopping the boost converter when the current in the battery falls within a first threshold range and restarting the boost converter when the actual boosted voltage provided by the boost converter falls outside a second threshold range; and threshold switching means for switching the first threshold range to a third threshold range wider than the first threshold range when the temperature of the battery is lower than a predetermined temperature.