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7795843 Short circuit detection for batteries  
A method and apparatus for short circuit detection for batteries. Some embodiments of a method include receiving a battery pack in a system, where the battery pack is rechargeable and includes...
7791347 Battery assembly with enhanced properties  
A battery assembly for use in an aircraft. The battery assembly may include a battery and a circuit configured to monitor the battery in situ. The circuit may include at least one sensor...
7786734 Method and device for regenerating batteries  
Method for treatment, in the form of regeneration, of an accumulator (160) having at least one cell, preferably lead batteries, in which a varying direct current from a power source (130) is...
7777453 Car power source apparatus having an over-charge and over-discharge protection circuit with automatic self-test function  
A car power source apparatus includes a battery array that has a plurality of battery units connected in series, a battery over-charge and over-discharge detection circuit, selection switches that...
7764066 Simulated battery logic testing device  
A simulated battery test device and method that is capable of testing a battery charging circuit and logic circuit to determine proper operation. An operational amplifier is used that can both...
7759903 Battery voltage measurement circuit, battery voltage measurement method, and battery electric control unit  
A voltage between both terminals of each unit battery is amplified by a differential amplifier and is then converted by a converter into a predetermined physical quantity that corresponds to the...
7750639 Battery management system with predictive failure analysis  
The invention relates to the management of large stationary batteries. The invention is a comprehensive system and process for the management of stationary batteries that are used for backup power...
7728599 Battery management system and driving method thereof  
A battery management system and a driving method thereof. The battery management system manages a plurality of battery cells, and a plurality of cell relays respectively coupled to the plurality...
7723959 Method for determining residual battery charge  
A method is provided for determining a residual charge on a battery (12), comprising applying a discharge pulse to the battery (12) and measuring a first voltage on the battery (12) at a first...
7701174 Method and device for determining the charge that can be drawn from an energy accumulator  
A device for ascertaining the charge able to be drawn from an energy store, in particular a battery, up to a specified cutoff, is provided. A particularly precise charge prediction may be achieved...
7688032 Battery remaining capacity detecting apparatus and battery remaining capacity detecting method  
A battery remaining capacity detecting apparatus includes a remaining capacity calculating section, first and second target remaining capacity calculating sections and a remaining capacity...
7688075 Lithium sulfur rechargeable battery fuel gauge systems and methods  
Systems and methods for accurately determining the state of charge and the relative age of lithium sulfur batteries are provided. The cell resistance and taper input charge of a particular type of...
7683591 Semiconductor device with voltage variation detector  
A semiconductor device includes a comparator which includes two input terminals and compares the voltage values between the power supply voltage which is inputted to one side input terminal and...
7675291 Method and device for monitoring deterioration of battery  
A battery characteristic detecting method according to the invention includes a first step in which constant current discharge from a battery is performed at a predetermined current value, and a...
7675269 Circuit and method for battery charging and discharging protection  
A method to detect the presence of battery protection circuits in any battery powered product. The major advantage of the method is to make the battery voltage very smooth during the charging...
7675292 Method of determining acid stratification in rechargeable batteries  
A method of determining a stratification of an electrolyte in an active mass of positive electrode plates in rechargeable batteries includes determining a variation of at least one of a charging...
7663375 Battery voltage detecting circuit  
A battery voltage detecting circuit includes: a first capacitor having one end connected to one input terminal of an operational amplifier; a second capacitor having one end connected to an output...
7659692 Rechargeable battery pack for a power tool having an interruptor for prevention of overcharging  
A battery pack for a power tool of self-contained over-charge protection is proposed. The battery pack includes a battery stack composed of a plurality of series connected secondary cells, and a...
7656164 Method of voltage measurement and apparatus for same  
A method of voltage measurement, and an apparatus for the same, having an improved accuracy and low cost is provided. The apparatus includes: a charging unit for charging a capacitor; a measuring...
7624292 Battery power detection device  
A battery power detection device is disclosed that has a reduced circuit area and is able to achieve sufficiently high detection accuracy. The battery power detection device includes a temperature...
7619389 Charge control device for a secondary battery  
A charge circuit 6 supplies a charging voltage (Vc) or a charging current to a secondary battery 2, 24 to 26 used for driving an appliance 21; a charged level setting device 5, Sc1 causes the...
7586311 Apparatus and method for monitoring load driving circuit for abnormality  
An ECU executes a program including the steps of: when a DC/DC converter is boosting the voltage, calculating a VB estimate value, and if a state, where an absolute value of a difference between...
7583053 Battery pack controller with specific battery voltage detection  
The invention provides a specific battery detection means that specifies single batteries believed to be in an excess discharge state during operation of the electric motor for starting the...
7579811 Battery pack, battery protection processing apparatus and control method thereof  
It is aimed at stably implementing a protection function of a secondary battery mainly under software control and providing a battery pack characterized by a reduced circuit installation area,...
7573241 Vehicle having a battery with multiple cells and method for operating such a battery  
A method for operating a battery having a plurality of battery cells includes determining when certain end of life criteria for the battery are met. A counter is incremented when the certain end...
7573238 Voltage detection device and electric vehicle including voltage detection device  
A voltage detection device for accurately correcting detection errors with voltage greater than an internal reference voltage. The device includes a first switch group of switches for obtaining...
7570023 Method of charging batteries  
In a method of charging batteries, a microcontroller and a series divider resistor are used to control the level of a charge current source supplied from a power supply, so that a plurality of...
7557585 Abnormal voltage detection apparatus for detecting voltage abnormality in assembled battery  
An abnormal voltage detection apparatus is provided for an assembled battery including a plurality of battery blocks connected in series to each other. In the abnormal voltage detection apparatus,...
7550975 Portable information terminal apparatus and voltage measurement apparatus  
The measurement unit measures a voltage by converting it from analog to digital and outputs a measurement value. The changeover unit, being connected to a battery and a reference voltage source...
7542858 Simulated battery logic testing device  
A simulated battery test device and method that is capable of testing a battery charging circuit and logic circuit to determine proper operation. An operational amplifier is used that can both...
7531990 Voltage detector for an assembled battery  
An apparatus and method for detecting total voltage of an assembled battery including a number of serially-connected electric cells. Voltages of the respective cells are detected and added up,...
7529068 Protective circuit for a frequency converter  
The voltage of the intermediate circuit of a frequency converter is monitored, while the intermediate circuit is charged via charging resistors. When the voltage has not reached at least a...
7504830 Dual load tester  
The apparatus relates to a dual load tester that is hand held and highly portable. The dual load tester includes two resistive loads, and the two resistive loads may be used in series or one of...
7492160 Device and method for measuring individual cell voltages in a cell stack of an energy accumulator  
A device and method enable measuring individual cell voltages of cells in a cell stack of an energy accumulator. To this end, a series circuit formed of two diodes is connected in parallel to each...
7486079 Available input-output power estimating device for secondary battery  
An available input-output power estimating device for a secondary battery includes a parameter estimating section substituting a measured current value I and a measured voltage value V into an...
7474228 Battery monitor  
An apparatus and method for monitoring at least one battery condition. An ac signal is applied to a battery. A difference between a signal output from the battery and a threshold determines a...
7474103 Storage medium having game program stored thereon and game apparatus  
At least one of continuous disconnection, intermittent disconnection, and temporary disconnection, of wireless communication between the input device and the game apparatus is detected. Remaining...
7466137 Apparatus and method for measuring voltage of the fuel cell stack using a capacitor  
An apparatus for measuring voltage is provided which measures output voltage between at least one pair of detecting terminals provided on an object under measurement. The apparatus for measuring...
7456613 Battery remaining capacity calculating method, battery remaining capacity calculating device, and battery remaining capacity calculating program  
A battery remaining capacity calculating method, a battery remaining capacity calculating device, and a battery remaining capacity calculating program that make it possible to estimate the...
7439706 Battery determination system for battery-powered devices  
This system provides a method for determining whether ordinary battery cells, a battery pack, and/or a charger unit are attached to a portable electronic device. The system provides a center...
7437647 Mode entry circuit and method  
An apparatus and method for generating an active mode activation signal in response to an input signal having a voltage exceeding the greater of two reference voltages by a voltage margin.
7432719 Abnormality monitoring apparatus in load drive circuit  
An ECU performs a program. In the program, in the case where a converter is performing an operation for increasing a voltage (i.e., YES in step S 102), when a difference between an estimated...
7423408 Monitoring device and method for determining at least one characteristic variable for the state of a battery  
A method for determining at least one characteristic variable for the state of a battery includes: (a) determining the charge throughput of the battery per time step; having, (b) determining a...
7420374 Battery with remaining electrical power display function and method of the same  
This invention provides an electronic device that has a battery with a power storage unit and a display module, a power detector and a display control module. The power storage unit is for storing...
7421603 Method for monitoring the operating readiness of at least one memory element assigned to an electronic unit  
A method for monitoring the operating readiness of memory elements which are assigned to an electronic unit, an engine control unit for example. Furthermore, an electronic unit for executing the...
7417438 Battery voltage measurement apparatus  
A voltage measurement circuit includes a plurality of voltage input terminals that are supplied with voltage outputted by secondary batteries via voltage measurement lines, a plurality of voltage...
7417437 Vehicle battery testing assembly  
A portable assembly includes a multi-level housing having a vertically oriented back wall and an elongated rectilinear axle conjoined thereto. The housing further includes an elongated handle...
7411400 Method for testing battery condition  
According to this invention a battery testing device is provided. Such device activates a shortening between the battery poles using a predefined electronic circuit (in order to maximize the...
7358704 Critical state estimation system and method for secondary cells  
For estimation of a critical state of a performance under a working condition of a secondary cell, in consideration of an internal resistance of the cell, a variable data provider provides...
7352156 State-of-charge estimating device of secondary battery  
A state-of-charge (SOC) estimating device and method for a secondary battery that estimates the SOC of the battery with high precision when variation takes place in the parameters of the battery...