Patent ID: 8831811

Claim:
A control unit for a hybrid vehicle, the hybrid vehicle including: an engine; a generator which generates electric power by being driven by the engine; a battery which supplies electric power to an electric motor; and the electric motor which is connected to a drive shaft of the hybrid vehicle and which is driven by means of electric power supplied from at least either of the battery and the generator, wherein the control unit includes: a basic required output calculator for calculating a basic required output for driving the hybrid vehicle based on a driving speed of the hybrid vehicle and an accelerator pedal opening which corresponds to an accelerator pedal operation in the hybrid vehicle; a gradient calculator for calculating a rising gradient of a road surface on which the hybrid vehicle runs; a correction output calculator for calculating a correction output which is added to the basic required torque based on the rising gradient; and a target output calculator for calculating, when a required output which results from adding the correction output to the basic required output is larger than a predetermined value, based on the required output, a battery target electric power by which the battery is required to output part of the required output and an engine target output by which the engine is required to output the remaining of the required output.