Hybrid vehicle

Abstract

A hybrid vehicle is disclosed, in which the drive torque is controlled according to a target, and the engine operating point and the battery charging rate are controlled thereby as targeted to improve the fuel consumption rate of the hybrid vehicle as a whole. An engine torque estimating unit 41 estimates the engine torque based on the motor current, and an engine output correction unit 42 calculates a correct value of the throttle opening based on the difference between the estimated value and the target value. The battery management unit 43, on the other hand, calculates a target battery charge/discharge rate based on the navigation information and the battery charging rate. The engine output correction unit 44 calculates and outputs the correction value of the target battery charge/discharge value based on the difference between the target battery charge/discharge current and the actual current. The corrected target battery charge/discharge value is input to an overall control unit 22 and added to the target engine output value.

Dependencies are inferred from the claim text.