Heavy truck fuel-saving robot device and control method

A hybrid vehicle, comprising:

• a generator set, used for converting chemical energy of vehicle fuel into electric energy, and consisting of an internal combustion engine and a motor;
• an electrical power split device (ePSD), configured as a power electronic network with three ports, each having at least one unidirectional or bidirectional electrical connection to outside, wherein a first port of the ePSD is electrically connected with an output end of the generator set bidirectionally;
• at least one power battery pack, electrically connected with a third port of the ePSD bidirectionally;
• a transmission, with its output shaft mechanically connected with a driving axle of the vehicle bidirectionally;
• at least one driving motor, electrically connected with a second port of the ePSD bidirectionally, wherein an output shaft of a main driving motor in the at least one driving motor is mechanically connected with an input shaft of the transmission bidirectionally, wherein the driving motor is operable for:
• converting electric energy into mechanical energy to drive the vehicle through the transmission;
• or
• converting mechanical energy of the vehicle into electric energy, recovering energy by regenerative braking, and charging the power battery pack through the ePSD,
• a first controllable clutch, arranged between the generator set and the driving motor, wherein the first controllable clutch is operable to couple or decouple the mechanical connection to the driving motor.