Method and device for setting a maximum depth of discharge of an energy store for a time period
First Claim
1. A method for setting a maximum depth of discharge of an energy reservoir for a time period, the method comprising:
- defining a first target aging value of the energy reservoir for a first time period;
determining a first aging value that describes an actual aging of the energy reservoir during the first time period;
calculating a first difference between the first target aging value of the energy reservoir and the first aging value of the energy reservoir;
defining a second target aging value of the energy reservoir for a second time period;
calculating a maximum aging value of the energy reservoir for the second time period, based on the second target aging value and at least the first difference;
calculating a maximum depth-of-discharge value based on the maximum aging value;
setting the maximum depth of discharge of the energy reservoir for the second time period to the maximum depth-of-discharge value; and
controlling the discharging of the energy reservoir during the second time period to limit the discharging to at most the maximum depth of discharge.
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Abstract
A method and apparatus for setting a maximum depth of discharge of an energy reservoir for a time period. The method includes: defining a first target aging value of the energy reservoir for a first time period; determining a first aging value that describes an aging of the energy reservoir during the first period; calculating a first difference between the first target aging value of the energy reservoir and the first aging value of the energy reservoir; defining a second target aging value of the energy reservoir for a second time period; calculating a maximum aging value of the energy reservoir for the second time period, based on the second target aging value and at least the first difference; calculating a maximum depth-of-discharge value based on the maximum aging value; setting the maximum depth of discharge of the energy reservoir for the second time period to the maximum depth-of-discharge value.
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Citations
9 Claims
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1. A method for setting a maximum depth of discharge of an energy reservoir for a time period, the method comprising:
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defining a first target aging value of the energy reservoir for a first time period; determining a first aging value that describes an actual aging of the energy reservoir during the first time period; calculating a first difference between the first target aging value of the energy reservoir and the first aging value of the energy reservoir; defining a second target aging value of the energy reservoir for a second time period; calculating a maximum aging value of the energy reservoir for the second time period, based on the second target aging value and at least the first difference; calculating a maximum depth-of-discharge value based on the maximum aging value; setting the maximum depth of discharge of the energy reservoir for the second time period to the maximum depth-of-discharge value; and controlling the discharging of the energy reservoir during the second time period to limit the discharging to at most the maximum depth of discharge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for setting a maximum depth of discharge of an energy reservoir for a time period, comprising:
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a defining device for defining a first target aging value of the energy reservoir for a first time period and for defining a second target aging value of the energy reservoir for a second time period; an aging value determining device for determining a first aging value that describes an actual aging of the energy reservoir during the first time period; a calculation device for calculating a first difference between the first target aging value of the energy reservoir and the first aging value of the energy reservoir, for calculating a maximum aging value of the energy reservoir for the second time period based on the second target aging value and at least the first difference, and for calculating a maximum depth-of-discharge value based on the maximum aging value; a setting device for setting the maximum depth of discharge of the energy reservoir for the second time period to the maximum depth-of-discharge value; and a battery charge control device to limit discharging of the battery during the second time period to at most the maximum depth of discharge.
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Specification