METHOD FOR CONTROLLING POWER OF GENERATOR IN SERIAL TYPE HYBRID ELECTRIC VEHICLE

摘要

PURPOSE: A method for controlling power of a generator in a serial type hybrid electric vehicle is provided to maximize generation efficiency by minimizing a fuel consumption rate and exhaust fumes and maintaining driving force of an engine and a motor. CONSTITUTION: A power value of a generator is inputted into an HSFC(Hybrid Specific Fuel Consumption) table according to a driving condition. An optimum engine torque value and an optimum angular velocity value of the generator corresponding to the power of the generator are determined from the HSFC table. The optimum engine torque value and the optimum angular velocity value are converted to indicative signals. The indicative signals are branched from the HSFC table and the branched signals are transmitted to an engine control portion and an angular velocity control portion of the first control portion. An engine and a generator of an operating part are operated according the indicative signals of the engine control portion and the angular velocity control portion. An output conversion portion of the engine converts an output by multiplying the torque value of the engine by the angular velocity value of the second control portion. An output conversion portion of the generator converts an output by multiplying the torque value of the generator by the angular velocity value of the second control portion. The sum of the torque values of the engine and the generator is inputted into the second control portion. The second control portion feeds back the angular velocity as a signal to a front terminal of the first control portion.