System, method, and apparatus for battery pack thermal management
First Claim
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1. A method, comprising:
- operating a hybrid power train comprising an internal combustion engine, an electric motor, a hybrid power system battery pack electrically coupled to the electric motor, and a driveline structured to motively couple the engine and the electric motor to a vehicle;
generating, thermal energy in the hybrid power system batter pack;
determining a heat transfer value in response to a temperature of the hybrid power system battery pack and a target temperature description;
providing a heat transfer command in response to the heat transfer value indicating the temperature of the hybrid power system battery pack is too high;
removing an amount of the thermal energy from the hybrid power system battery pack in response to the heat transfer command;
securing, at least a portion of the removed thermal energy, anddetermining a propulsion state of the vehicle, wherein securing at least the portion of the removed thermal energy includes providing the removed thermal energy to the driveline of the vehicle in response to the propulsion state indicating the electric motor is providing motive power to the driveline of the vehicle.
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Abstract
An apparatus is described including a hybrid power train having an internal combustion engine and an electric motor. The apparatus includes a hybrid power system battery pack that is electrically coupled to the electric motor. The apparatus includes an energy securing device that is thermally coupled to the hybrid power system battery pack. The energy securing device selectively removes thermal energy from the hybrid power system battery pack, and secure removed thermal energy. The energy securing device secures the removed thermal energy by storing the energy in a non-thermal for, or by using the energy to accommodate a present energy requirement.
166 Citations
19 Claims
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1. A method, comprising:
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operating a hybrid power train comprising an internal combustion engine, an electric motor, a hybrid power system battery pack electrically coupled to the electric motor, and a driveline structured to motively couple the engine and the electric motor to a vehicle; generating, thermal energy in the hybrid power system batter pack; determining a heat transfer value in response to a temperature of the hybrid power system battery pack and a target temperature description; providing a heat transfer command in response to the heat transfer value indicating the temperature of the hybrid power system battery pack is too high; removing an amount of the thermal energy from the hybrid power system battery pack in response to the heat transfer command; securing, at least a portion of the removed thermal energy, and determining a propulsion state of the vehicle, wherein securing at least the portion of the removed thermal energy includes providing the removed thermal energy to the driveline of the vehicle in response to the propulsion state indicating the electric motor is providing motive power to the driveline of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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operating a hybrid power train comprising an internal combustion engine, an electric motor, a hybrid power system battery pack electrically coupled to the electric motor, and a driveline structured to motively couple the engine and the electric motor to a vehicle; generating thermal energy in the hybrid power system battery pack; determining a heat transfer value in response to a temperature of the hybrid power system battery pack and a target temperature description; providing a heat transfer command in response to the heat transfer value indicating, the temperature of the hybrid power system battery pack is too high; removing an amount of the thermal energy from the hybrid power system battery pack in response to the heat transfer command; securing at least a portion of the removed thermal energy; and determining a propulsion state of the vehicle, wherein securing at least the portion of the removed thermal energy includes providing the removed thermal energy as electrical energy to one of the hybrid power system battery pack, an ultracapacitor, and an auxiliary load in response to the propulsion state indicating the electric motor is not providing motive power to the driveline of the vehicle. - View Dependent Claims (12)
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13. A method, comprising:
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operating a hybrid power train comprising an internal combustion engine, an electric motor, a hybrid power system battery pack electrically coupled to the electric motor, and a driveline structured to motively couple the engine and the electric motor to a vehicle; generating thermal energy in the hybrid power system battery pack; determining a heat transfer value in response to a temperature of the hybrid power system battery pack and a target temperature description; providing a heat transfer command in response to the heat transfer value indicating the temperature of the hybrid power system battery pack is too high; in response to the heat transfer command, removing an amount of the thermal energy from the hybrid power system battery pack and securing at least the portion of the removed thermal energy; and determining a propulsion state of the vehicle, and wherein removing thermal energy from the hybrid power system battery pack and securing at least the portion of the removed thermal energy is performed by providing the removed thermal energy to the driveline of the vehicle in response to the propulsion state indicating the electric motor is providing motive power to the driveline of the vehicle. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method comprising:
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operating a hybrid power train comprising an internal combustion engine, an electric motor, a hybrid power system battery pack electrically coupled to the electric motor, and a driveline structured to motively couple the engine and the electric motor to a vehicle; generating thermal energy in the hybrid power system battery pack; determining a heat transfer value in response to a temperature of the hybrid power system battery pack and a target temperature description; providing a heat transfer command in response to the heat transfer value indicating the temperature of the hybrid power system battery pack is too high; in response to the heat transfer command, removing the amount of the thermal energy from the hybrid power system battery pack and securing at least the portion of the removed thermal energy; and determining a propulsion state of the vehicle, and wherein romoving the thermal energy from the hybrid power system battery pack and securing at least the portion of the removed thermal energy performed by providing the removed thermal energy as electrical energy to one of the hybrid power system battery pack, an ultracapacitor, and an auxiliary load in response to the propulsion state indicating the electric motor is not providing motive power to the driveline of the vehicle.
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Specification