Method of controlling generator driving engine and system for embodying the same

A system for controlling a generator driving engine which includes an engine for receiving fuel supply from a fuel tank, a generator for generating electric energy when driven by mechanical output of said engine, and a battery for accumulating said electric energy generated by said generator, wherein a vehicle can be driven by rotating a motor by virtue of said electric energy accumulated in said battery, said system comprising:

• a fuel vapor quantity calculating unit calculating a fuel vapor quantity in said fuel tank;
• a purge quantity calculating unit calculating a fuel vapor purge quantity based on an engine revolution number and engine torque when said engine is driven;
• a vapor capturing devise capturing said fuel vapor;
• an estimating unit estimating said fuel vapor quantity captured by said vapor capturing devise, based on said fuel vapor quantity calculating unit and said purge quantity calculating unit;
• and
• an engine controlling unit driving said engine before said fuel vapor overflows said vapor capturing devise to thus be discharged into an air.

A system for controlling a generator driving engine which includes an engine for receiving fuel supply from a fuel tank, a generator for generating electric energy when driven by mechanical output of said engine, and a battery for accumulating said electric energy generated by said generator, wherein a vehicle can be driven by rotating a motor by virtue of said electric energy accumulated in said battery, said system comprising:

• a fuel vapor quantity calculating means for calculating a fuel vapor quantity in said fuel tank;
• a purge quantity calculating means for calculating a fuel vapor purge quantity based on an engine revolution number and engine torque when said engine is driven;
• a vapor capturing means for capturing said fuel vapor;
• an estimating means for estimating said fuel vapor quantity captured by said vapor capturing means, based on said fuel vapor quantity calculating means and said purge quantity calculating means;
• and
• an engine controlling means for driving said engine before said fuel vapor overflows said vapor capturing means to thus be discharged into an air.