초록 ▼

A system for controlling a series hybrid vehicle, having an internal combustion engine whose output is regulated by a throttle valve, a generator-motor connected to the engine to be rotated by the engine, an electric energy storage means connected to the first generator-motor to be charged by the fi

A system for controlling a series hybrid vehicle, having an internal combustion engine whose output is regulated by a throttle valve, a generator-motor connected to the engine to be rotated by the engine, an electric energy storage means connected to the first generator-motor to be charged by the first generator-motor, and a second generator-motor connected to at least one of the first generator-motor and the electric energy storage means to input an output of at least one of the first generator-motor and the electric energy storage means to drive wheels of the vehicle to propel the vehicle. In the system, a desired engine speed is determined to minimize fuel consumption, and a desired power generation amount of the first generator-motor is determined based on a determined desired power generation base value and the desired engine speed. Then, the throttle opening is controlled to achieve the desired power generation amount, thereby optimizing fuel consumption, while rapidly converging the engine speed on the desired value, without stalling the internal combustion engine.

대표청구항 ▼

[ What is claimed is:] [1.]1. A system for controlling an output of a series hybrid vehicle, having an internal combustion engine whose output is regulated by a throttle valve, a generator-motor connected to the engine to be rotated by the engine, an electric energy storage means connected to the fi

[ What is claimed is:] [1.]1. A system for controlling an output of a series hybrid vehicle, having an internal combustion engine whose output is regulated by a throttle valve, a generator-motor connected to the engine to be rotated by the engine, an electric energy storage means connected to the first generator-motor to be charged by the first generator-motor, and a second generator-motor connected to at least one of the first generator-motor and the electric energy storage means to input an output of at least one of the first generator-motor and the electric energy storage means to drive wheels of the vehicle to propel the vehicle, comprising;desired first generator-motor power generation base value determining means for determining a desired power generation base value of the first generator-motor which the first generator-motor is desired to generate;desired engine speed determining means for determining a desired engine speed which the engine is desired to generate;desired first generator-motor power generation amount determining means for determining a desired power generation amount of the first generator-motor which the first generator-motor is desired to generate, based on the determined desired power generation base value and the desired engine speed;desired throttle opening determining means for determining a desired throttle opening of the throttle valve based on the desired power generation amount of the first generator motor;throttle valve driving means for driving the throttle valve based on the determined throttle opening; andwherein the desired first generator-motor power generation amount determining means includes:engine operating condition detecting means for detecting operating condition of the engine including at least the engine speed generated by the engine;correction value calculating means for calculating a deviation between the detected engine speed and the determined desired engine speed (NECMD) and for calculating a correction value by multiplying a gain by the calculated deviation; anddesired first generator-motor power generation amount calculating means for calculating the desired power generation amount of the first generator-motor by adding the correction value to the determined power generation base value.