Patent ID: 7565942

Claim:
A drive control system for a vehicle having an internal combustion engine as one motive power source, a motor-generator as another motive power source, a generator for generating electric power when driven by the engine, and a battery for storing electric energy, wherein the electric power generated by the generator and the electric power regenerated by the motor-generator cause electric energy to be stored in the battery, and wherein the battery discharges electric energy to drive the motor-generator, the drive control system comprising: a first fuel consumption calculating means for calculating first fuel consumption as an amount of fuel consumed to drive the engine; a second fuel consumption calculating means for calculating second fuel consumption as an amount of fuel consumed to drive the motor-generator; and a motive power distribution determining means for determining distribution of motive power between the engine and the motor-generator from the first and second fuel consumptions; wherein the second fuel consumption calculating means calculates contributing fuel consumption that contributes to the electric energy stored in the battery, and calculates the second fuel consumption by reflecting the contributing fuel consumption therein.