Patent ID: 8774999
Filing Date: 2014-07-08
Classification: B60H,B60L,Y02T

Abstract:
1. An air-conditioning control device for an electric vehicle that travels using electric power of a battery, the air-conditioning control device comprising: a detector configured to detect a remaining power of the battery; a calculator configured to calculate a demand load of air-conditioning based on at least one of a preset temperature set for air in a passenger compartment of the electric vehicle and an outside temperature of air outside of the electric vehicle; and a switching portion configured to switch a mode of the air-conditioning between a battery mode and an engine mode based on the calculated demand load and the detected remaining power of the battery, the battery mode causing the battery to supply the electric power for the air-conditioning, the engine mode causing an engine of the electric vehicle to supply combustion energy for the air-conditioning, wherein the switching portion is configured to switch the mode of the air-conditioning to the batter mode when the detected remaining power is larger than or equal to a first predetermined value in case where the calculated demand load is lower than a threshold, the switching portion is configured to switch the mode of the air-conditioning to the engine mode when the detected remaining power is smaller than the first predetermined value in case where the calculated demand load is lower than the threshold, the switching portion is configured to switch the mode of the air-conditioning to the battery mode when the detected remaining power is larger than or equal to a second predetermined value which is larger than the first predetermined value in case where the calculated demand load is higher than or equal to the threshold, and the switching portion is configured to switch the mode of the air-conditioning to the engine mode when the detected remaining power is smaller than the second predetermined value in case where the calculated demand load is higher than or equal to the threshold.