Kühlsystem, Kraftfahrzeug mit einem Kühlsystem und Verfahren zur Regelung eines Kühlsystems

摘要

A cooling system of the invention used to cool down a battery switches over an effective air blow mode between an inside air intake mode of taking in the inside air (the air in a passenger compartment) and directly blowing the intake air to the battery and an A/C intake mode of taking in the air cooled down by an air conditioner and blowing the cooled intake air to the battery. Upon the requirement for accelerated cooling of the battery (requirement for the A/C intake mode), the cooling system estimates a battery cooling power W1 in the inside air intake mode based on an inside temperature Tin and a vehicle speed V (drive-related noise), while estimating a battery cooling power W2 in the A/C intake mode based on an air conditioner outlet temperature Tac, the vehicle speed V, and an A/C air volume Qac as an air volume required for the air conditioner (steps S140 to S170). The cooling mode having the greater estimated battery cooling power is then selected as the effective air blow mode.