公开(公告)号：US20200086713A1

公开(公告)日：2020-03-19

申请号：US16692753

申请日：2019-11-22

Applicant: DENSO CORPORATION

Inventor： Akira YAMAGUCHI ,  Yoshiharu ENDO ,  Tetsuya TAKECHI ,  Terukazu HIGUCHI

IPC: B60H1/00 ,  B60H1/22 ,  B60H1/32 ,  B60H3/02

Abstract: A vehicular air conditioner includes an air conditioning, a heater core, a heat pump cycle unit, a temperature detector, and a controller. The heat pump cycle unit includes a first inside heat exchanger disposed downstream of the heater core in a flow direction of a conditioning air, a second inside heat exchanger disposed upstream of the heater core in the flow direction of the conditioning air, and an outside heat exchanger. The temperature detector is configured to detect a passage air temperature, the passage air temperature being a temperature of the conditioning air that has passed through the heater core. The controller is configured to selectively switch a circuit layout of the heat pump cycle unit between a cooling circuit, a heating circuit, and a dehumidifying-heating circuit based on the passage air temperature.

公开(公告)号：US20200298665A1

公开(公告)日：2020-09-24

申请号：US16897340

申请日：2020-06-10

Applicant: DENSO CORPORATION

Inventor： Mitsuhiro NAKAZAWA ,  Hitoshi NAKAHATA ,  Tetsuya TAKECHI ,  Yoshihiko UESUGI ,  Yuji KAWAZOE

IPC: B60H1/08 ,  B60H1/02 ,  B60H3/02

Abstract: A vehicular heater includes a heat medium circuit connected to a heater core that heats vent air via heat exchange with a heat medium. The heat medium circuit includes a first flow path connected to the heater core through a power unit, and a second flow path arranged in parallel with the first flow path and connected to the heater core through a heat source different from the power unit. A controller adjusts a first flow rate of the heat medium in the first flow path to be larger than a second flow rate of the heat medium in the second flow path when the power unit is operating.

公开(公告)号：US20190283537A1

公开(公告)日：2019-09-19

申请号：US16431863

申请日：2019-06-05

Applicant: DENSO CORPORATION

Inventor： Akira YAMAGUCHI ,  Tetsuya TAKECHI ,  Yoshiharu ENDO ,  Terukazu HIGUCHI

IPC: B60H1/00

Abstract: An electronic control unit is applied to an air conditioner, the air conditioner including a heating unit which heats a heat medium, a casing which allows an air flow to circulate toward a compartment, a blower which generates the air flow in the casing, and a heat exchanger disposed in the casing that heats the air flow by exchanging heat between the heat medium heated by the heating unit and the air flow. The blower air volume of the blower is controlled based on a first candidate value determined based on an estimated blowing temperature, and a second candidate value determined based on a required blowing air temperature and the estimated blowing temperature. The second candidate value is set as a predetermined value when a warm-up operation of the heating unit is completed.