Thermal management system for vehicles with an electric powertrain

Patent metadata

Field	Value
Publication number	US-2023256866-A1
Application number	US-202318154338-A
Country	US
Kind code	A1
Filing date	Jan 13, 2023
Priority date	Jan 3, 2014
Publication date	Aug 17, 2023
Grant date	—

Abstract

This patent application is directed to thermal management systems of vehicles with an electric powertrain. More specifically, the battery system and one or more powertrain components and/or cabin climate control components of a vehicle share the same thermal circuit as the battery module through which heat can be exchanged between the battery module and one or more powertrain or climate control components as needed.

First claim

1 .- 26 . (canceled)

27 . A thermal management system for a vehicle, the system comprising:
a control system; a shared thermal circuit comprising a fluid transfer module and one or more switches, the one or more switches being configured to operate based on signals received from the control system; a powertrain component thermally coupled to the shared thermal circuit; an external heat exchanger module comprising one or more heat rejection devices configured to dissipate heat in an operation mode; and a battery module having a cycle life of at least 100 cycles and being capable of operating at a temperature between about 40° C. and 150° C., the battery module being thermally coupled to the thermal circuit, wherein the control system is configured to cause the heat dissipated by the powertrain component to transfer to the battery module when the battery module is lower than a predetermined temperature.

28 . The system of claim 27 , wherein the powertrain component comprises an electric motor.

29 . The system of claim 27 , wherein the one or more heat rejection devices are configured to dissipate heat away from the thermal management system.

30 . The system of claim 27 , wherein the shared thermal circuit comprises one or more pumping devices for transferring the working fluid in either direction within the circuit.

31 . The system of claim 27 , wherein the predetermined temperature is 75° C.

32 . The system of claim 27 , wherein the vehicle does not comprise an internal combustion engine.

33 . The system of claim 27 , wherein the battery module is a 16 kWh battery module.

34 . The system of claim 27 , wherein the battery module further comprises a solid-state battery.

35 . The system of claim 27 , wherein the battery module further comprises a battery comprising a solid-state electrolyte.

36 . The system of claim 27 , wherein the battery module further comprises a battery comprising a lithium-stuffed garnet electrolyte.

37 . The system of claim 27 , wherein the vehicle comprises an electric vehicle.

38 . The system of claim 27 , wherein the vehicle comprises a plug-in hybrid vehicle.

39 . The system of claim 27 , wherein the vehicle comprises a plug-in hybrid vehicle.

Assignees

• Quantumscape Battery Inc

Inventors

• Hettrich Kevin
• Wojcik Tomasz
• Hermann Weston Arthur

Classifications

• B60L58/27 Primary

  by heating · CPC title

• B60L58/24

  for controlling the temperature of batteries · CPC title

• B60H1/00278

  for the battery · CPC title

• B60K6/40

  characterised by the assembly or relative disposition of components · CPC title

• B60K11/02

  with liquid cooling · CPC title