초록 ▼

In vehicles having drive systems with a highly variable degree of heat generation but in which the total quantity of heat generated is small, the heat given off is inadequate to warm the vehicle properly. The cooling system must nevertheless be designed for the worst-possible operating point, i.e. t

In vehicles having drive systems with a highly variable degree of heat generation but in which the total quantity of heat generated is small, the heat given off is inadequate to warm the vehicle properly. The cooling system must nevertheless be designed for the worst-possible operating point, i.e. the greatest amount of heat generated, even if it is generated only briefly. It is the purpose of the present development to make the best possibly exergetic use of the available energy sources while ensuring that the drive components are cooled. The air extracted from the passenger compartment (1) comprises a proportion of exhaust air and one of recirculated air, where the recirculated air is heated in the heat exchanger (9) for the cooling circuit (16) of the drive system and taken to the passenger compartment. The system is particularly suitable for electric vehicles, vehicles with hydrogen and hybrid drives and vehicles developing little heat.

대표청구항 ▼

[ We claim:] [1.] A device for cooling drive components and for controlling a temperature inside a passenger compartment, of a motor vehicle, comprising:a cooling circuit through which a coolant is circulated for cooling the drive components;a refrigerant circuit including a condenser and an evapora

[ We claim:] [1.] A device for cooling drive components and for controlling a temperature inside a passenger compartment, of a motor vehicle, comprising:a cooling circuit through which a coolant is circulated for cooling the drive components;a refrigerant circuit including a condenser and an evaporator; andan air-guide duct through which an air current is circulated and arranged to exchange heat with said cooling circuit and said refrigerant circuit, said air-guide duct extending from an outflow opening of the passenger compartment to an intake-air opening thereof, said air-guide duct includingan inflow air-current control element for mixing the air current from said passenger compartment with a fresh air flow,a heat exchanger, disposed downstream of said inflow air-current control element, for transferring heat from said coolant of said cooling circuit to the mixed air current of the air-guide duct,an outflow air-current control element, disposed downstream of said heat exchanger, for dividing the mixed air current of the air-guide duct into an air component introduced into the passenger compartment and an exhaust air component drawn off into the environment, anda bypass duct having a first end disposed upstream of the inflow air-current control element and a second end connected to said outflow air-current control element such that a bypass flow of said bypass duct is introduced into the passenger compartment and said mixed air current is drawn off into the environment,wherein said evaporator is disposed upstream of the inflow air-current control element and said condenser is disposed downstream of the inflow air-current control element but upstream of the outflow air-current control element.