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US 10,889,205 B2Granted
Thermal management system for vehicles with an electric powertrain
AssigneeQuantumScape Corporation
InventorsKevin Hettrich, Tomasz Wojcik, Weston Arthur Hermann
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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.
Claims17
A thermal management system for a vehicle with an electric drivetrain, the system comprising:
- a battery system comprising at least one battery cell having a cycle life of at least 100 cycles, and an optimal operating temperature of 75° C. or higher;
- an internal combustion engine (ICE);
- at least one heat exchanger;
- a shared thermal circuit thermally coupling the battery system and the ICE, comprising:
- a working fluid,
- at least one valve for directing the working fluid in the following direction:
- from the battery system to the ICE,
- from the ICE to the heat exchanger, and
- from the heat exchanger to the battery system;
- and
- a control system for controlling the heat exchange between the ICE and the battery system, wherein the control system actuates the at least one valve;
- wherein the working fluid of the shared thermal circuit is shared among the battery system, the ICE, and optionally other components.
9 more elements
Dependencies are inferred from the claim text.