Vehicle and control method therefor

The present invention provides a vehicle and a control method therefor. When an abnormality occurs in a first voltage sensor that detects a voltage of a power line on a high voltage side or a second voltage sensor that detects a voltage of a power line on a low voltage side, an estimated voltage of the power line on the high voltage side is calculated based on a detected current of a reactor thatis detected by a current sensor that detects a current of the reactor as the detected current, and a step-up converter is controlled using the estimated voltage of the power line on the high voltage side. 本发明提供了车辆及其控制方法。当在检测在高压侧的电力线的电压的第电压传感器或者检测在低压侧的电力线的电压的第二电压传感器中发生异常时，基于检测电抗器的电流作为检测电流的电流传感器检测到的电抗器的检测电流来计算在高压侧的电力线的估计电压，并且使用在高压侧的电力线的估计电压来控制升压转换器。