Patent ID: 9744876
Date: 2017-08-29
CPC Classifications: B60L,H02M,Y02T

Claim:
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.