公开(公告)号：US10913332B2

公开(公告)日：2021-02-09

申请号：US16088889

申请日：2017-03-02

Applicant: DENSO CORPORATION

Inventor： Go Sato ,  Takashi Yasuda ,  Koichi Harada ,  Ken Muto ,  Masaaki Kawakubo ,  Nobukazu Kuribayashi ,  Hiroyuki Sakane

IPC: B60K11/04 ,  B60H1/32 ,  F01P3/18 ,  F01P7/04 ,  F01P11/10 ,  B60K11/08

Abstract: In a heat exchange unit, a shutter device is disposed on a vehicle front side with respect to a coolant heat exchanger to open and close a passage for traveling air directed toward the coolant heat exchanger. A blower is switchable between a first blowing state in which air flows from the vehicle front side to the vehicle rear side and a second blowing state in which air flows from the vehicle rear side to the vehicle front side. In a case where a switch that makes a vehicle travelable is in an on state, a control unit switches the blower to the second blowing state, while an open degree of the shutter device is set at a closing side from a maximum open degree of the shutter device when a temperature of the engine coolant is equal to or lower than a predetermined temperature determination value.