Patent ID: 8052066
Filing Date: 2011-11-08
Classification: B60H,B60K,B60L,B60W,Y02T

Abstract:
1. A heating control system for a vehicle having an internal combustion engine generating driving force of the vehicle from thermal energy generated by burning fuel, comprising: an air conditioning apparatus using thermal energy derived from cooling water of said internal combustion engine; a water temperature measurement unit measuring temperature of said cooling water; control target temperature setting means for setting a control target temperature of said cooling water based on a preset temperature corresponding to a temperature of said cooling water that is necessary for performing heating by said air conditioning apparatus and based on a cooling water temperature measured by said water temperature measurement unit; and water temperature increase means for changing, when said cooling water temperature is lower than said preset temperature, operation of said internal combustion engine to allow an amount of heat generated by said internal combustion engine to increase, according to a control amount calculated according to a deviation between said control target temperature and said cooling water temperature, wherein said control target temperature setting means sets said control target temperature at said preset temperature when a temperature difference between said preset temperature and said cooling water temperature is at most a predetermined value and sets said control target temperature higher than said preset temperature when said temperature difference is larger than said predetermined value, said vehicle further has an electric motor generating driving force of the vehicle from electrical energy, said control amount is an amount of increase in output power of said internal combustion engine, and when said cooling water temperature is lower than said preset temperature, said water temperature increase means determines a driving force share ratio that is a ratio between respective shares of driving force to be generated by said internal combustion engine and said electric motor, so that an output power demand on said internal combustion engine which is a part of an output power demand on the vehicle as a whole is higher by said amount of increase in output power calculated according to said deviation, relative to a case where said cooling water temperature is not lower than said preset temperature.