METHOD AND SYSTEM FOR EXTENDING LIFE OF A VEHICLE ENERGY STORAGE DEVICE
First Claim
1. A method for controlling a power transfer rate in to and/or out of a vehicle energy storage device to affect a current state of charge of the energy storage device, the vehicle on a vehicle mission, the mission comprising a plurality of future power transfer opportunities, the method comprising:
- adjusting the power transfer rate based on an estimated duration of a future power transfer opportunity.
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Abstract
Methods and systems are provided for controlling a power transfer rate in to and/or out of a vehicle energy storage device to affect a current state of charge of the energy storage device. The vehicle may be on a mission comprising a plurality of future power transfer opportunities. In one example, the method comprises adjusting the power transfer rate based on an estimated duration of a future power transfer opportunity. Further, the method may include, if the estimated duration of the future power transfer opportunity is different from a predetermined threshold, changing the power transfer rate at the future power transfer opportunity. The method allows the operating life of the energy storage device to be extended.
135 Citations
26 Claims
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1. A method for controlling a power transfer rate in to and/or out of a vehicle energy storage device to affect a current state of charge of the energy storage device, the vehicle on a vehicle mission, the mission comprising a plurality of future power transfer opportunities, the method comprising:
adjusting the power transfer rate based on an estimated duration of a future power transfer opportunity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for a locomotive on a mission, the system comprising:
an energy storage device; and a control system configured to; during a current power transfer opportunity, estimate a duration of a future power transfer opportunity, and adjust a power transfer rate of the energy storage device at the current power transfer opportunity to affect a current state of charge of the energy storage device based on the estimated duration of the future power transfer opportunity; and
further adjust a power transfer rate of the future power transfer opportunity based on the estimated duration of the future power transfer opportunity.- View Dependent Claims (21, 22, 23, 24)
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25. A method of controlling an energy storage device in a powered system, the method comprising:
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operating the powered system according to a mission profile, wherein the mission profile includes data about future opportunities to use or generate electrical power in the powered system; and adjusting a power transfer rate of electrical energy in to or out of the energy storage device, based on the data, and in advance of the powered system encountering the future opportunities. - View Dependent Claims (26)
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Specification