Power system control method and control system of hybrid power vehicle and vehicle

The invention provides a power system control method and system of a hybrid power vehicle and the vehicle, and relates to the technical field of vehicle control. The power system control method comprises the following steps: judging whether a power battery has a power limitation fault or not; when it is judged that the power limited fault occurs in the power battery, torque control is conducted on the first motor and the second motor, meanwhile, the anti-shake function of the second motor is turned off, so that power generation of the first motor and power utilization of the load are kept consistent, and the current of the bus end of the power battery is kept to be zero; and performing voltage control on the first motor to enable the difference value between the actual voltage of the first motor and the set voltage to be within a preset difference value range. According to the control method, normal operation of the vehicle can be guaranteed, the problem that the vehicle cannot run and even the power battery