Simulation test system and method for electronic speed regulator of diesel engine

The invention relates to a simulation test system and method for an electronic speed regulator of a diesel engine, and the system comprises a to-be-tested electronic speed regulator, an upper computer, and a diesel engine simulation module. The diesel engine simulation module comprises a simulation controller, a motor driver, a direct-current servo motor, a rotating speed sensor mounted at a speed measurement flywheel part of the direct-current servo motor, and a photoelectric encoder mounted at an output shaft of the direct-current servo motor; the simulation controller is used for driving the direct-current servo motor to simulate the operation of the diesel engine through the motor driver according to the accelerator opening degree signal and the driving current signal based on a cascade control mode; and the upper computer is used for monitoring a rotating speed signal of the direct-current servo motor, monitoring an accelerator opening signal and outputting a monitoring result. According to the technical