| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of cooling a hybrid electric vehicle(HEV), with which the function, efficiency, and productivity of the components of the HEV can be maintained by cooling the components. SOLUTION: This method is used for cooling the components of the HEV, including an air-conditioning system, an internal combustion engine 64 and its related parts, an electric drive system 66 containing an inverter, a DC/DC converter 68, a generator motor, and a drive motor and its related parts. Cooling of the components is performed by means of a cooling system composed of a cooling loop filled up with a fluid, radiators 54 and 56, a fan 58, pumps 60 and 62, an air-conditioner condenser 52, and a controller 50. The pumps 60 and 62 generate flow, through the cooling loop so that the fluid absorbs heat from the components and radiate the heat through the radiators 54 and 56 with the assistance of an air flow from the fan 58. The controller 50 monitors the temperature data of the components by measuring the actual temperatures of the components or their corresponding refrigerants and compares the temperature data of the components with a threshold which can be constituted, so as to discriminate whether the fan 58 should be actuated. |
