US 11,897,310 B2Granted

Vehicle thermal management system

AssigneeToyota Jidosha Kabushiki Kaisha

InventorTakayuki Shimauchi

Life of this patent

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Abstract

A control device supplies regenerative electric power to increase an output of a low-voltage air conditioner when the regenerative electric power is surplus with respect to electric power that is able to be charged to a main battery as compared with a case where the regenerative electric power is not surplus with respect to the electric power that is able to be charged to the main battery. Therefore, it is possible to reduce an output (work load and electric power per unit time) of a high-voltage air conditioner required to maintain comfort of an occupant in a vehicle cabin. Therefore, it is possible to improve electric power consumption rate while maintaining comfort of the occupant in the vehicle cabin.

Claims4

Dependent claims

A vehicle thermal management system comprising:

a high-voltage air conditioner to which electric power is supplied from a main battery;
a low-voltage air conditioner to which electric power is supplied from an auxiliary battery of which an output voltage is lower than an output voltage of the main battery;
and
a control device that includes a travel control electronic control unit and an air conditioner electronic control unit that are connected to each other such that the travel control electronic control unit and the air conditioner electronic control unit are able to communicate with each other, and supplies regenerative electric power to increase an output of the low-voltage air conditioner when the regenerative electric power is surplus with respect to electric power that is able to be charged to the main battery as compared with a case where the regenerative electric power is not surplus with respect to the electric power that is able to be charged to the main battery.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/691,787Filed 10 Mar 2022
Priority: JP 2021-0632232 Apr 2021
Published: US 2022/0314730 A16 Oct 2022
Granted: 13 Feb 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

B60H 1/004
For vehicles having an electrical drive, e.g. hybrid or fuel cell: for vehicles having a combustion engine and electric drive means, e.g. hybrid…
B60H 1/00428
Driving arrangements for parts of a vehicle air-conditioning: electric
B60H 1/2221
The heat being derived from electric heaters: arrangements of electric heaters for heating an intermediate liquid
B60L 1/00
Supplying electric power to auxiliary equipment of vehicles

Family

US 2022/0314730 A1Pre-grant publication · published 6 Oct 2022
US 11,897,310 B2This patent

From the US filing history. Foreign family members aren’t listed.

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