Drivetrain and control method for series hybrid vehicle

[Subject] Drive transfer system for in-series hybrid cars. [Solution means] The engine 10 which drives alt. ネータ 11, and the electric drive motor 21, The inverter which makes an electric drive motor operate by torque preset value CC, and the accelerator control device for driver operation, The actuator 15 which acts on an engine, The drive transfer system both for an in-series hybrid car which has the control device (3) with which the program which an engine operation model is loaded and makes the pair (R, PP) of the preset value of the engine revolving speed R and the position PP of the actuator 15 from the position of an accelerator control device was loaded. A control device (3) calculates torque preset value CC of an electric drive motor with the function of the difference of the revolving speed R and the revolving speed preset value R which control the position of an actuator based on the preset value PP of the position of an actuator and by which the engine was measured. [Selection figure] Fig. 1