US 11,919,360 B2
Vehicle heat management system
Yasushi Takagi, Tokyo (JP); and Shinya Kurasawa, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Aug. 1, 2019, as Appl. No. 16/528,779.
Claims priority of application No. 2018-185262 (JP), filed on Sep. 28, 2018.
Prior Publication US 2020/0101810 A1, Apr. 2, 2020
Int. Cl. B60H 1/00 (2006.01); B60L 58/26 (2019.01); B60R 16/04 (2006.01); B60H 1/32 (2006.01)
CPC B60H 1/00028 (2013.01) [B60H 1/00278 (2013.01); B60L 58/26 (2019.02); B60R 16/04 (2013.01); B60H 1/3228 (2019.05)] 10 Claims
OG exemplary drawing
 
1. A vehicle heat management system for a vehicle comprising:
a refrigerant circuit configured to circulate a refrigerant to regulate a temperature inside a passenger compartment;
a heating circuit configured to circulate liquid that exchanges heat with the refrigerant, the heating circuit being capable of regulating the temperature inside the passenger compartment;
a battery temperature regulation circuit configured to regulate a temperature of a battery by introducing liquid of the heating circuit or liquid that exchanges heat with the refrigerant to the battery;
an equipment cooling circuit including a first circuit and a second circuit coupled with the first circuit via a radiator in parallel,
the first circuit including a first piece of equipment and configured to circulate liquid to regulate temperature of the first piece of equipment, the first piece of equipment including at least one of a first driving motor for driving the vehicle and a circuit for driving the first driving motor, and
the second circuit configured to include a second piece of equipment and configured to circulate liquid to regulate temperature of the second piece of equipment, the second piece of equipment other than the first piece of equipment and including at least one of a second driving motor for driving the vehicle and a circuit for driving the second driving motor, wherein
the second circuit is configured to include:
a first channel configured to couple the battery temperature regulation circuit with the first circuit via the radiator by bypassing the second piece of equipment included in the second circuit, and introduce liquid cooled by the equipment cooling circuit into the battery temperature regulation circuit; and
a second channel configured to couple, between the radiator and the second piece of equipment, the battery temperature regulation circuit with the second circuit, the battery temperature regulation circuit being on a downstream side of the second piece of equipment, and configured to introduce liquid warmed by the second piece of equipment to flow from the second piece of equipment through a control valve through the second channel prior to entering the battery temperature regulation circuit, wherein
the temperature of the battery is regulated by selectively routing liquid flow through the first channel and liquid flow through the second channel.
 
10. A vehicle heat management system for a vehicle comprising:
a refrigerant circuit configured to circulate a refrigerant to regulate a temperature inside a passenger compartment;
a heating circuit configured to circulate liquid that exchanges heat with the refrigerant, the heating circuit being capable of regulating the temperature inside the passenger compartment;
a battery temperature regulation circuit configured to regulate a temperature of a battery by introducing liquid of the heating circuit or liquid that exchanges heat with the refrigerant to the battery;
an equipment cooling circuit including a first circuit and a second circuit coupled with the first circuit via a radiator in parallel,
the first circuit including a first piece of equipment and configured to circulate liquid to regulate temperature of the first piece of equipment, the first piece of equipment including at least one of a first driving motor for driving the vehicle and a circuit for driving the first driving motor, and
the second circuit configured to include a second piece of equipment and configured to circulate liquid to regulate temperature of the second piece of equipment, the second piece of equipment other than the first piece of equipment and including at least one of a second driving motor for driving the vehicle and a circuit for driving the second driving motor, wherein
the second circuit is configured to include:
a first channel configured to couple the battery temperature regulation circuit with the first circuit via the radiator by bypassing the second piece of equipment included in the second circuit, and introduce liquid cooled by the equipment cooling circuit into the battery temperature regulation circuit; and
a second channel configured to couple, between the radiator and the second piece of equipment, the battery temperature regulation circuit with the second circuit on a downstream side of the second piece of equipment, and configured to introduce liquid warmed by the second piece of equipment to flow from the second piece of equipment through a control valve through the second channel prior to entering the battery temperature regulation circuit,
the temperature of the battery is regulated by selectively routing liquid flow through the first channel and liquid flow through the second channel, and
wherein the heating circuit is coupled to one or more valves, the one or more valves being configured to at least partially restrict the liquid from flowing into the battery temperature regulation circuit.