Stroke-increasing electric automobile control system and control method thereof

The invention relates to a stroke-increasing electric automobile control system, comprising a stroke-increasing device which is used for supplying power for a high-voltage storage battery, the high-voltage storage battery is connected with a driving motor which integrates generating and driving functions into one body by a motor control unit (MCU), the motor control unit (MCU) is communicated with a vehicle management system (VMS), and the driving motor drives the vehicle to drive. The invention also discloses a control method of the stroke-increasing electric automobile control system. The invention uses the stroke-increasing device to supply power and utilizes the driving motor to generate, thus prolonging the endurance mileage from the two aspects. Namely, on the one hand, whether the stroke-increasing device needs to be started to generate electricity is determined according to the storage battery state of the high-voltage battery of the vehicle; and on the other hand, when a driver has no driving need, the control system enables the driving motor to generate electricity so as to recover energy of the vehicle kinetic energy, thus prolonging the endurance mileage.