Electric control system of vehicle and vehicle

The utility model discloses an electric control system of a vehicle and the vehicle. The electric control system comprises a power battery; the rectification and inversion module is connected with the power battery in series; and the first low-voltage DC module is connected with the power battery in series and connected with the rectification inversion module in parallel, and the first low-voltage DC module is used for supplying power to a low-voltage load through the power battery. Therefore, the first low-voltage DC module is responsible for the low-current function requirement of the whole vehicle in a static state, the rectification and inversion module is responsible for cooperatively realizing the high-current function requirement of the whole vehicle in a normal high-voltage process, and the two scenes are mutually matched to work, so that various vehicle use scenes of the whole vehicle can be covered, and the purpose of canceling a starting battery is achieved; and the cost and power consumption of th