Control method and control device for high-voltage power-on of electric vehicle and vehicle

The invention provides an electric vehicle high-voltage power-on control method and device and a vehicle. The method comprises the steps that when a high-voltage power battery is in a starting state, the high-voltage power battery is controlled to power on a high-voltage load; under the condition that the high-voltage load is powered on successfully, the opening value of a brake pedal and gear information of a gear shifter are obtained, and the gear information is information of a gear where the gear shifter is located currently; and under the conditions that the opening value of the brake pedal is larger than the preset opening value and the gear information is a driving gear or a reverse gear, the high-voltage power battery is controlled to power on the driving motor. The method solves the problem that the service life of the driving motor is shortened due to the fact that the driving motor is still in a high-voltage working state when the electric vehicle is standby in the prior art. 本申请提供了一种电动汽车高压上电的控制方法、