US 12,168,388 B2
Vehicle power management system
Takayuki Shimauchi, Toyota (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Oct. 21, 2022, as Appl. No. 17/971,068.
Claims priority of application No. 2021-184466 (JP), filed on Nov. 12, 2021.
Prior Publication US 2023/0150340 A1, May 18, 2023
Int. Cl. B60H 1/00 (2006.01)
CPC B60H 1/00921 (2013.01) [B60H 1/00278 (2013.01); B60H 2001/00307 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A vehicle power management system comprising:
a battery installed in a vehicle;
an air conditioner for a vehicle cabin, the air conditioner being driven by power of the battery;
an external power supply device that enables external power supply in which the power of the battery is supplied to an external electric device; and
a determination unit that determines whether an operation restriction of the air conditioner is executed during the external power supply, wherein the determination unit determines that the operation restriction is executed when all of following four conditions are satisfied, regarding a cooling operation state of the air conditioner, as determination of whether the operation restriction is executed:
(A-1) a target blowout temperature is less than a predetermined blowout threshold temperature during cooling;
(A-2) an outside air temperature exceeds a predetermined outside air threshold temperature during cooling;
(A-3) a refrigerant temperature after heat is exchanged with an air blown into the vehicle cabin exceeds a predetermined refrigerant threshold temperature during cooling; and
(A-4) a blower air volume of the air conditioner exceeds a predetermined threshold air volume.
 
5. A vehicle power management system comprising:
a battery installed in a vehicle;
an air conditioner for a vehicle cabin, the air conditioner being driven by power of the battery;
an external power supply device that enables external power supply in which the power of the battery is supplied to an external electric device; and
a determination unit that determines whether an operation restriction of the air conditioner is executed during the external power supply, wherein the determination unit determines that the operation restriction is executed when all of following four conditions are satisfied, regarding a heating operation state of the air conditioner, as determination of whether the operation restriction is executed:
(B-1) a target blowout temperature exceeds a predetermined blowout threshold temperature during heating;
(B-2) an outside air temperature is less than a predetermined outside air threshold temperature during heating;
(B-3) a refrigerant temperature after heat is exchanged with an air blown into the vehicle cabin is less than a predetermined refrigerant threshold temperature during heating; and
(B-4) a blower air volume of the air conditioner exceeds a predetermined threshold air volume.