Method and system for extending battery life
First Claim
Patent Images
1. A method for extending a life cycle of a battery comprising:
- receiving a storage mode status signal at a battery system controller, the storage mode status signal including an expected duration of a storage mode;
and incrementally adjusting a state of charge window over a predefined time period in response to receiving the storage mode status signal by gradually adjusting a state of charge low limit from a first state of charge low limit value to a second state of charge low limit value by periodically decrementing the state of charge low limit value by a set amount over a predefined period of time,gradually adjustig a state of charge high limit from a first state of charge high limit value to a second state of charge high limit value by periodically decrementing the state of charge high limit value by a set amount over a predefined period of time,and gradually adjusting a state of charge maximum limit from a first state of charge maximum limit value to a second state of charge maximum limit value periodically decrementing the state of charge maximum limit value by a set amount over a predefined time period;
and maintaining a state of charge minimum limit in response to the storage mode status signal.
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Abstract
A method for extending the life cycle of a battery includes receiving a storage mode status signal at a battery controller and incrementally adjusting a state of charge window over a period of time in response to receiving the storage mode status signal.
10 Citations
16 Claims
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1. A method for extending a life cycle of a battery comprising:
- receiving a storage mode status signal at a battery system controller, the storage mode status signal including an expected duration of a storage mode;
and incrementally adjusting a state of charge window over a predefined time period in response to receiving the storage mode status signal by gradually adjusting a state of charge low limit from a first state of charge low limit value to a second state of charge low limit value by periodically decrementing the state of charge low limit value by a set amount over a predefined period of time, gradually adjustig a state of charge high limit from a first state of charge high limit value to a second state of charge high limit value by periodically decrementing the state of charge high limit value by a set amount over a predefined period of time, and gradually adjusting a state of charge maximum limit from a first state of charge maximum limit value to a second state of charge maximum limit value periodically decrementing the state of charge maximum limit value by a set amount over a predefined time period; and maintaining a state of charge minimum limit in response to the storage mode status signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- receiving a storage mode status signal at a battery system controller, the storage mode status signal including an expected duration of a storage mode;
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12. A vehicle battery system controller comprising:
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a non-transitory computer readable medium storing instructions operable to cause a battery system controller to incrementally adjust a state of charge window over a predefined time period in response to receiving a storage mode status signal by gradually adjusting a state of charge low limit from a first state of charge low limit value to a second state of charge low limit value by periodically decrementing the state of charge low limit value by a set amount over a predefined period of time, gradually adjusting a state of charge high limit from a first state of charge high limit value to a second state of charge high limit value by periodically decrementing the state of charge high limit value by a set amount over a predefined period of time, and gradually adjusting a state of charge maximum limit from a first state of charge maximum limit value to a second state of charge maximum limit value periodically decrementing the state of charge maximum limit value by a set amount over a predefined time period; and further operable to maintain a state of charge minimum limit, in response to a storage mode status signal; and an operator input having at least one of a touch screen button, a physical button, a toggle, and a remote input connection, the operator input including a duration input operable to receive a duration of a storage mode. - View Dependent Claims (13, 14, 15)
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16. A method for operating an electrified vehicle:
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receiving a storage mode status signal from a vehicle operator at a battery energy control module; and gradually adjusting a state of charge low limit from a first state of charge low limit value to a second state of charge low limit value by periodically decrementing the state of charge low limit value by a set amount over a predefined period of time, gradually adjusting a state of charge high limit from a first state of charge high limit value to a second state of charge high limit value by periodically decrementing the state of charge high limit value by a set amount over a predefined period of time, and gradually adjusting a state of charge maximum limit from a first state of charge maximum limit value to a second state of charge maximum limit value periodically decrementing the state of charge maximum limit value by a set amount over a predefined time period.
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Specification