Patent ID: 9085296
Filing Date: 2015-07-21
Classification: B60K,B60L,B60W,F02D,Y02T,Y10S

Abstract:
1. A hybrid vehicle including: an engine which generates a driving force; a battery which supplies an electric power; a generator which is driven by the engine to generate an electric power; an electric motor which is connected to a drive wheel and which is driven by the electric power supplied from at least one of the battery and the generator to generate a driving force; a power transmission engaging/disengaging unit which is disposed between the generator and the drive wheel to engage and disengage a power transmission line from the engine to the drive wheel; and an engaging/disengaging control unit which controls the power transmission engaging/disengaging unit, wherein the hybrid vehicle is driven by the driving force transmitted from at least one of generator or the engine, the hybrid vehicle further including: an engine controller which controls a driving state of the engine; and a battery controller which calculates an upper limit to be imposed on the battery as to supplying of the electric power; a required output calculation unit which calculates a required output required of the hybrid vehicle based on an accelerator pedal opening which corresponds to an operation of an accelerator pedal and a running speed of the hybrid vehicle, and wherein, when the required output exceeds a sum of the driving force to be generated by the electric motor supplied with the electric power of the battery corresponding to the upper limit and the driving force of the engine while the hybrid vehicle is running on an engine-directly-connected drive mode in which the power transmission engaging/disengaging unit is engaged and at least the engine works as a drive source, the engaging/disengaging control unit controls the power transmission engaging/disengaging unit to be disengaged after a shifting period in which the engine controller decreases a mechanical transmission of an output of the engine and increases an electrical transmission of the output of the engine.