LOW-VOLTAGE POWER SUPPLY SYSTEM AND VEHICLE HAVING SAME

A low-voltage power supply system and a vehicle having same. The low-voltage power supply system comprises: a storage battery; an electric control board, the electric control board being connected to the storage battery, the electric control board being at least integrated with a battery management control module and a motor control module, and the motor control module being configured to control a power module; a control circuit, the control circuit being connected to the battery management control module, and the control circuit being configured to receive a control command from the battery management control module; an MOS tube, the MOS tube being connected to the control circuit; and a battery management system, the battery management system being provided with a contactor. The MOS tube is connected to the contactor and mounted on the electric control board or the battery management system, and the battery management control module controls on-off of the MOS tube by means of the control circuit so as to achieve on-off of the storage battery and the contactor.