Variable battery refresh charging cycles
First Claim
Patent Images
1. A refresh control system to selectively initiate a refresh charge cycle of an energy storage device, comprising:
- a bias factor module that determines a bias factor; and
a usage period module that monitors a usage period of said energy storage device, that determines a modified usage period threshold based on a usage period threshold and said bias factor and that initiates said refresh charge cycle of said energy storage device when said usage period exceeds said modified usage period threshold.
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Abstract
A refresh control system that selectively initiates a refresh charge cycle includes an energy storage device and an electric machine that is operable to charge the energy storage device. A control module monitors a usage period of the energy storage device and determines a bias factor. The control module determines a modified usage period threshold based on a usage period threshold and the bias factor. The control module regulates the electric machine to initiate a refresh charge cycle of the energy storage device when the usage period exceeds the modified usage period threshold.
24 Citations
54 Claims
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1. A refresh control system to selectively initiate a refresh charge cycle of an energy storage device, comprising:
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a bias factor module that determines a bias factor; and a usage period module that monitors a usage period of said energy storage device, that determines a modified usage period threshold based on a usage period threshold and said bias factor and that initiates said refresh charge cycle of said energy storage device when said usage period exceeds said modified usage period threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A refresh control system to selectively initiate a refresh charge cycle, comprising:
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an energy storage device; an electric machine that is operable to charge said energy storage device; and a control module that monitors a usage period of said energy storage device, that determines a bias factor, that determines a modified usage threshold based on a usage threshold and said bias factor and that regulates said electric machine to initiate a refresh charge cycle of said energy storage device when a usage period exceeds said modified usage threshold. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of initiating a refresh charge cycle of an energy storage device, comprising:
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monitoring a usage period of said energy storage device; determining a bias factor; determining a modified usage threshold based on a usage threshold and said bias factor; and regulating said electric machine to initiate a refresh charge cycle of said energy storage device when said usage period exceeds said modified usage threshold. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method of initiating a refresh charge cycle of an energy storage device, comprising:
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monitoring an amp-hour count of said energy storage device; determining a total bias factor based on a plurality of bias factors; determining a modified amp-hour threshold based on an amp-hour threshold and said total bias factor; and regulating said electric machine to initiate a refresh charge cycle of said energy storage device when an amp-hour count exceeds said modified amp-hour threshold. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A refresh control system to selectively initiate a refresh charge cycle, comprising:
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an engine; an electric machine that is selectively driven by said engine; an energy storage device that is charged based on energy generated by said electric machine; and a control module that monitors an amp-hour count of said energy storage device, that determines a total bias factor based on a plurality of bias factors, that determines a modified amp-hour threshold based on an amp-hour threshold and said plurality of bias factors and that regulates said electric machine to initiate a refresh charge cycle of said energy storage device when an amp-hour count exceeds said modified amp-hour threshold. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification