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US 2021/0268936 A1Published application
Battery thermal management system and methods of use
AssigneeQuantumScape Battery, Inc.
InventorsKevin Hettrich, Tomasz Wojcik
Life of this patent
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Abstract
Set forth herein are systems and methods for determining battery heating conditions and pre-heating lead times of at least a minute or more, based on input parameters and sets of input parameters, to predictively and dynamically heat a secondary battery so that the battery has a specific power output and performance level when used in an electric or hybrid vehicle application.
Claims47
A secondary battery thermal management system, the system comprising:
- at least one temperature sensor for determining a temperature of a battery in a vehicle, the battery being a secondary battery;
- at least one receiver for receiving at least one of a plurality of input parameters;
- a module configured to send control signals to either the battery or a heating device, wherein the signals result in heating of the battery to temperatures optimized for a predicted vehicle use;
- wherein the module determines the temperatures optimized for the predicted vehicle use and a heating lead time of at least a minute or more based on the determined temperatures and at least one of the plurality of input parameters.
1 more element
A method for secondary battery thermal management in a vehicle, the method comprising:
- determining a temperature of a battery and optionally the ambient air temperature;
- analyzing a plurality of input parameters;
- providing or determining a vehicle start time and a probability of correctness;
- providing a control signal to either the battery, or a heating device, to heat the battery to temperatures optimized for a predicted vehicle use;
- wherein the control signal comprises a heating power rating and a heating lead time of at least a minute or more based on the determined temperatures and at least one of a plurality of input parameters;
- optionally comparing vehicle start time and probability of correctness with the actual vehicle start time, and adjusting an algorithm for providing the vehicle start time;
- thereby providing thermal management for the battery.
4 more elements
Dependencies are inferred from the claim text.