System and method for battery control of hybrid locomotives
First Claim
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1. A method for controlling stored battery charge, the method comprising:
- sensing a present state of charge (SoC) of one or more batteries and generating present SoC data there from;
sensing a present excursion defined by a relationship represented as maximum SoC−
minimum SoC for a desired cycle and generating present excursion data there from; and
controlling power/current charging limits for the one or more batteries in response to the present SoC data and the present excursion data.
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Abstract
A system and method are provided for battery control of hybrid vehicles such as, but not limited to, hybrid locomotives. The system and method are implemented to sense a present state of charge (SoC) of one or more batteries and generate present SoC data there from, sense a present excursion defined by a relationship represented as maximum SoC−minimum SoC for a desired cycle and generate present excursion data there from, and control the one or more battery power/current charging limits in response to the present SoC data and the present excursion data.
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Citations
33 Claims
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1. A method for controlling stored battery charge, the method comprising:
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sensing a present state of charge (SoC) of one or more batteries and generating present SoC data there from; sensing a present excursion defined by a relationship represented as maximum SoC−
minimum SoC for a desired cycle and generating present excursion data there from; andcontrolling power/current charging limits for the one or more batteries in response to the present SoC data and the present excursion data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A battery control system comprising:
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a battery charge sensor configured to sense and generate data corresponding to a present state of charge (SoC) of one or more batteries, and further configured to sense and generate data corresponding to a present excursion defined by a relationship represented as maximum SoC−
minimum SoC for a desired cycle; anda battery controller configured to control power/current charging limits for the one or more batteries in response to the present SoC data and the present excursion data. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A battery control system for enhancing hybrid vehicle battery performance and fuel savings via modulation of battery charging and discharging current control limits based on a relationship defined as
Control Limit (P, I)=f(Excursion, SoC), where P is total battery charging power in Amp hours, I is battery charging/discharging current, SoC means state of charge of the battery cells, and Excursion means the magnitude of a cycle defined as maximum SoC− - minimum SoC for a cycle.
- View Dependent Claims (29, 30, 31, 32, 33)
Specification