Patent ID: 9340201
Filing Date: 2016-05-17
CPC Classification: B60K,B60W,F02D,Y02T,Y10S

Claim Text:
1. An engine operation control device for a hybrid vehicle, comprising: an engine provided in a vehicle; a power generator that is driven by the engine to generate electric power; a driving battery that is chargeable with electric power supplied from the power generator; a driving motor that drives drive wheels with electric power supplied from the driving battery or electric power supplied from the power generator; a clutch that transmits or ceases to transmit power from the engine to the drive wheels; a mode switching unit for switching a travel mode of the vehicle to a series mode in which the driving motor drives the drive wheels to cause the vehicle to travel while the engine is operated at a predetermined set rotational speed to cause the power generator to generate electric power, with the clutch disengaged; an atmospheric pressure detection unit for detecting atmospheric pressure in a present position of the vehicle; and a setting unit for setting a rotational speed and output torque of the engine so that the set rotational speed increases and the engine output torque decreases with decreasing of the atmospheric pressure detected by the atmospheric pressure detection unit to ensure that the power generator generates required electric power in the series mode.