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6947855 |
Adaptive algorithm to control and characterize super-capacitor performance
A method for determining a state of charge (SOC) of a super-capacitor (SC) system includes modeling the SC system with an equivalent circuit having first and second parameters. The method further...
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6946817 |
System and method for powering and charging a mobile communication device
A system for powering and charging a mobile communication device includes a processing device, a rechargeable battery, a Universal Serial Bus (USB) interface, and a charging subsystem. The...
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6943528 |
Method and arrangement for determination of the state of charge of a battery
Method of determining the state of charge soc of a battery, in particular a starting battery of a motor vehicle; the state of charge being calculated, in a first operating range, on the basis of a...
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6943693 |
Method for informing user of available battery time based on operating mode of hybrid terminal
Disclosed is a method for informing a user of an available battery time of a battery in a hybrid terminal based on the operating mode of the hybrid terminal. The hybrid terminal has a plurality of...
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6940255 |
Battery charge indicator such as for an implantable medical device
This document discusses, among other things, a system providing a battery charge indicator for an implantable medical device, such as using a lithium/carbon monofluoride (CFx) or other battery....
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6936995 |
Battery voltage reduction
A regulator voltage control includes measuring a current of a battery, determining a state of charge (SOC) of the battery based on the current, and determining a nominal optimum charging voltage as...
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6930468 |
Discharge methodologies for optimizing the performance of lithium/silver vanadium oxide cells
It is known that reforming implantable defibrillator capacitors at least partially restores and preserves their charging efficiency. An industry-recognized standard is to reform implantable...
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6931332 |
Method and system for testing battery connectivity
A method for testing battery connectivity in a battery-backed up system, the method includes inducing a step increase in a battery bus voltage, and monitoring a magnitude of a corresponding current...
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6930465 |
Residual capacity correction method for battery
In a residual capacity correction method for a battery, a count of one cycle is made each time an accumulated quantity of a charge capacity of a battery reaches a learning capacity of the battery...
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6927554 |
Simple optimal estimator for PbA state of charge
A state of charge estimator for a battery includes a meter that generates a terminal voltage signal of the battery and a terminal current signal of the battery. A controller employs a linearized...
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6928372 |
Method for estimating time to full-charge in a rechargeable battery
A method for determining time to completion is provided for a battery charging system. The system preferably includes a charger having a microprocessor and a battery with a memory. The memory...
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6928371 |
Monitoring system of VRLA battery capacitance
A method and apparatus for monitoring the capacity of a valve regulated lead acid battery comprising at least one battery monitor connected to the valve regulated lead acid battery; a centralized...
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6924622 |
Battery capacity measurement
A method of obtaining information relating to the charge capacity of one or more cells utilizing information from the initial discharge period of the cell or cells. The method involves measuring a...
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6924624 |
Method and apparatus for slowing the discharge process of a battery
A battery unit including a battery ( 3 ) is equipped with a monitoring circuit ( 9 ) for detecting and evaluating operating variables related to charge state of the battery ( 3 ). So that energy is...
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6911803 |
Systems and methods for evaluating a charge state of a battery based on optical properties of the battery electrolyte material
System and methods for evaluating a charge state of a battery are provided. A light source is configured for emitting light through an electrolyte contained within the battery. An optical element...
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6911804 |
MOBILE INFORMATION APPARATUS, METHOD AND PROGRAM FOR OPTIMIZING THE CHARGE STATE OF THE APPARATUS, AND BATTERY MANAGEMENT SERVER, METHOD AND PROGRAM USING THE SERVER TO OPTIMIZE THE CHARGE STATE OF BATTERY-POWERED ELECTRICAL APPARATUS
A schedule recording section ( 4 ) records a user's schedule. A SOC (state-of-charge) optimization planning section ( 5 ) plans the SOC of a rechargeable battery ( 21 ) based on the user's...
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6909261 |
Method for predicting the loading capability of an electrochemical element
A method for predicting the loading capability of an accumulator by measuring the current I, voltage U and temperature T of the accumulator, and comparing the measured values with the corresponding...
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6902018 |
Electric vehicle drive control apparatus, electric vehicle drive control method, and program thereof
An electric vehicle drive control apparatus has an electric machine; a battery; an inverter that is driven in accordance with a drive signal, and that receives DC current from the battery and...
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6892148 |
Circuit and method for measurement of battery capacity fade
The remaining run-time (t_rem) of a battery is determined independently of the condition of the battery and the amount of load on the battery by obtaining the value of a present total zero-current...
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6891378 |
Electronic battery tester
An electronic battery tester connectable to a battery through any one of multiple cables. The tester includes an input that can couple to any one of the multiple cables. Also included is a memory...
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6891355 |
Method for computing an amount of energy taken from a battery
A method to compute an amount of energy taken from a battery coupled to a switching power converter is disclosed. The switching power converter charges a capacitor to a voltage and by the...
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6888468 |
Apparatus and method for protecting a battery from overdischarge
A battery discharge indicator for protecting a storage battery is provided. The battery discharge indicator includes a positive connector that can couple to a positive terminal of the battery and a...
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6876174 |
Method for dynamically measuring the state of health and charge of a car battery and device for implementing said method
Based on the measurement of the increase of sinusoidal voltage ΔV=V max sine(2πft) on adding a sinusoidal current ΔI=I max sine(2πft+φ) to the battery current, where f is the frequency and I...
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6876175 |
Methods for determining the charge state and/or the power capacity of charge store
Methods are described for determining the state of charge and/or the operability of a charge accumulator using estimates. The information, which is obtained at a least two different operating...
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6873135 |
Battery pack and battery pack checking method
The present invention is a battery pack with BMU mounted in the control circuit for controlling battery voltage, etc. In order to avoid worsening of the battery pack durability due to failure of...
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6870349 |
Battery life estimator
A method and apparatus are provided to calculate capacitance remaining on a power source in a battery powered device. A database is provided to store data associated with past battery performance...
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6867595 |
Verification system for verifying authenticity of a battery and method thereof
A verification system for verifying authenticity of a battery used in a portable electronic device includes a battery for supplying a first electrical current, the battery containing a transducer...
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6864665 |
Battery state monitoring device and electronic device fitted with such device
In an electronic device that uses a self-emissive display such as an organic EL display, terminal voltage of a battery is monitored with high precision. In a digital camera 10 , an organic EL...
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6856162 |
AC/DC monitor system
A combined AC/DC monitoring system simultaneously monitors an AC power supply and a DC power supply in a mobile unit. The monitoring system is electrically isolated from an AC input source through...
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6856922 |
System and method for battery management using host processing
A system and method for portable computer battery management using host processing relocates analog and digital components needed to implement the SBDS standard from the battery pack to the...
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6850037 |
In-vehicle battery monitor
An apparatus and a method of monitoring a battery in an automotive vehicle are provided. An output is provided which can be a relative output as a function of minimum and maximum parameters of the...
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6850038 |
Method of estimating state of charge and open circuit voltage of battery, and method and device for computing degradation degree of battery
A method of estimating a state of charge of a battery, a method of estimating an open circuit voltage of a battery, and a method and device for computing a degradation degree of a battery are...
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6844704 |
Voltage threshold device and energy storage cell failure detection system for power supply
An active voltage limiting and failure detection system for an energy storage cell of a multiple energy storage cell pack includes a first electrical circuit and a second electrical circuit...
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6845332 |
State of charge calculation device and state of charge calculation method
A state of charge calculation device includes an ammeter for detecting charge and discharge currents of a secondary battery, a state detection sensor for detecting a start time of discharge from...
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6841972 |
Method for resetting a state of charge of a battery of a hybrid electric vehicle
A method for resetting a state of charge of a battery for a hybrid electric vehicle comprises: determining whether a discharge current of the battery is greater than a predetermined discharge...
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6836096 |
Method of calculating capacity of intelligent battery, intelligent battery and portable electronic device
A method of calculating capacity of an intelligent battery is provided for, whereby an intelligent battery and a portable electronic device are capable of allowing for power consumption by a minute...
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6835491 |
Battery having a built-in controller
A multiple-cell battery having a built-in controller is disclosed that extends the run time of the battery. The controller may extend the run time of the battery, for example, by converting the...
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6832171 |
Circuit and method for determining battery impedance increase with aging
An internal impedance of a battery ( 30 ) is automatically determined by operating a processor ( 13 ) to analyze current flowing through the battery to determine if a transient condition due to...
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6829562 |
Method and device for state sensing of technical systems such as energy stores
A method and a device for state sensing of a technical system, such as an energy store, in which performance quantities are measured and supplied to a state estimation routine, which determines the...
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6828761 |
Battery charging/discharging apparatus and battery charging/discharging method
When a battery is in a standby mode, a microcomputer switches to a sleep mode when no charging/discharging current is supplied within a predetermined time and controls a timer to start measuring...
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6820019 |
Device and method for determining and communicating the remaining life of a battery in an implantable neurological tissue stimulating device
The invention is a device and method for determining the current status and remaining life of a power source in an implantable neurological tissue stimulator. The invention contemplates a method,...
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6809501 |
Method of improving fuel economy
A fuel economy control method includes estimating a temperature of a battery, measuring a current of the battery, and measuring a voltage of the battery. A nominal optimum charging voltage is...
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6801016 |
Matching cells for a battery pack
A battery pack having a first secondary cell and a second secondary cell, preferably of a non-aqueous chemistry, is described. Each secondary cell has a discharge capacity and an internal...
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6798172 |
Method for preserving capacity of a battery of an electronic device
A battery capacity recovery apparatus and method thereof periodically conducts discharge and recharge operations for a battery used in a wireless telephone to prevent a memory effect on the...
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6794853 |
Display device for fuel cell vehicle and fuel cell vehicle
A display portion of a meter device of a fuel cell vehicle has a motor output meter and a capacitor capacitometer. The motor output meter has an output indicating portion and a regenerative power...
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6789026 |
Circuit and method for monitoring battery state of charge
A processor ( 13 ) operates to determine amount of charge presently stored in a battery by determining that the battery is in a zero-current relaxed condition. Circuitry ( 16,23 ) including a first...
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6781382 |
Electronic battery tester
An electronic battery tester for testing a storage battery is provided. The tester includes a pair of Kelvin connectors that can electrically couple to terminals of the battery. Also included, is a...
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6777914 |
Method for determining the state of charge of rechargeable batteries by integration of the amounts of current flowing during charging and discharging
In a method for determining the state of charge of rechargeable batteries by integration of the amounts of current flowing during charging and discharging, a first state of charge value LZ A is...
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6774636 |
Method and apparatus for determining the state of charge of a lithium-ion battery
Computer-assisted methods for determining the state of charge of a specific lithium ion battery, without the need for charging and discharging the battery, by utilizing look-up tables or algorithms...
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6771043 |
Power tools
Battery-powered tools may include battery 1 or battery pack BP and a drive source (e.g., motor M) for generating power using current supplied from the battery. A switch 3 may electrically...
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