Optimized Fuzzy Logic Controller For Energy Management In Micro and Mild Hybrid Electric Vehicles
First Claim
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1. An energy storage system of a vehicle, comprising:
- an energy storage device;
a regulation device coupled to the energy storage device, wherein the regulation device is configured to regulate at least one of a voltage level, a current level, and any additional state parameter of the energy storage device;
one or more sensing devices for sensing current levels, voltage levels, temperature levels, and/or pressure levels of the energy storage device and/or on components thereof; and
a control unit configured to determine dynamically a power flow in/out of the energy storage device using a fuzzy logic approach.
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Abstract
An energy storage system of a vehicle includes an energy storage device, a regulation device coupled to the energy storage device, one or more sensing devices for sensing current levels, voltage levels, temperature levels, and/or pressure levels of the energy storage device and/or on components thereof, and a control unit configured to determine dynamically a power flow in/out of the energy storage device using a fuzzy logic approach. The regulation device is configured to regulate at least one of a voltage level, a current level, and any additional state parameter of the energy storage device.
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Citations
26 Claims
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1. An energy storage system of a vehicle, comprising:
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an energy storage device; a regulation device coupled to the energy storage device, wherein the regulation device is configured to regulate at least one of a voltage level, a current level, and any additional state parameter of the energy storage device; one or more sensing devices for sensing current levels, voltage levels, temperature levels, and/or pressure levels of the energy storage device and/or on components thereof; and a control unit configured to determine dynamically a power flow in/out of the energy storage device using a fuzzy logic approach. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A micro-hybrid vehicle, comprising:
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a vehicle control unit for determining operation modes of the micro-hybrid vehicle, and generating controlling signals corresponding to the operation modes; an energy storage system configured to receive the controlling signals, and comprising; a first energy storage device and a second energy storage device; a regulation device coupled to the first and second energy storage devices, wherein the regulation device is configured to regulate at least one of a voltage level, a current level, and any additional state parameter of the first and second energy storage devices; one or more sensing devices for sensing current input signals and voltage input signals to at least one of the first and second energy storage devices and/or components thereof; and a control unit configured to determine dynamically a target state of charge (SOC) of each of the first and second energy storage devices based on a current vehicle speed using a fuzzy logic approach. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer-implemented method for controlling an operation of an energy storage system of a micro-hybrid vehicle, the energy storage system having a vehicle operation unit, a control unit, and a voltage and current regulator device, first and second energy storage devices, the method comprising:
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determining whether the micro-hybrid vehicle is in a driving mode, and determining a speed of the micro-hybrid vehicle when in the driving mode; determining a target SOC of each of the first and second energy storage devices based on the hybrid vehicle speed; determining a current SOC of each of the first and second energy storage devices; evaluating a difference between the target SOCs and the current SOCs; and determining dynamically using a fuzzy logic approach an amount of power available for regeneration, energy assistance, and propulsion. - View Dependent Claims (25, 26)
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Specification