To Compare Battery Voltage With A Reference Voltage Patents (Class 324/433)
  • Patent number: 10286801
    Abstract: The disclosure includes a system and method for providing charging services to mobile client devices. The system includes a processor and a memory storing instructions that, when executed, cause the system to: estimate a departure time of a future journey associated with a mobile client device; verify one or more electrical characteristics of a battery associated with the mobile client device; determine a target state of charge for the battery at the departure time; and determine a charge scheme to improve an operational life of the battery. The charge scheme has a combining charge cost that satisfies a charge objective of the mobile client device. The combining charge cost includes a weighted combination of a power cost and a battery degradation cost. The charge scheme is configured to charge the battery to achieve the target state of charge at the departure time.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: May 14, 2019
    Inventors: Takayuki Shimizu, Akihisa Yokoyama, Kunihiko Kumita, Tomoya Ohno
  • Patent number: 10267865
    Abstract: A medical infusion pump and a method for logging a power source voltage of a medical infusion pump are disclosed. The medical pump may include a power source, a processor, and a voltage supervisor which responds if a voltage (VDD) drops to a response voltage level which is above a reset voltage level of the processor. When the voltage supervisor responds, the processor start logging the voltage (Vbat) of the power source in a memory, thus generating a voltage log. The memory maintains the logged data when the power supply by the power source is interrupted, thus enabling retrospective analysis of the voltage log.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: April 23, 2019
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Reto Aeschlimann, Thomas Rufer
  • Patent number: 10268229
    Abstract: An electrical apparatus includes a battery and an adjustable circuit. The adjustable circuit is configured to adjust a load current in the electrical equipment when battery impedance for the battery is higher than a predetermined threshold battery impedance. The battery impedance for the battery is compared in a session against the predetermined threshold battery impedance and the load current is adjusted in the session when the predetermined threshold battery impedance is higher than the predetermined threshold battery impedance.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 23, 2019
    Assignee: ZOLL Medical Corporation
    Inventor: Timothy F. Stever
  • Patent number: 10263415
    Abstract: A battery operated portable communication device provides converged functionality while avoiding resets to the device. Composite logic circuitry formed of at least one comparator and a logic interface controls current limiting to a primary load formed of high power land mobile radio (LMR) devices and programming to secondary loads formed of non-LMR peripherals. At least one current limit control signal is used to control current to the primary load under high current mode operations. Another control signal provides an interruption alert to a slave processor for controlled programming of the secondary loads during the high current operations of the primary load. Current to the primary load is restored while the secondary load is interrupted. Operation of secondary load processes is resumed when the primary load ceases high power operation.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: April 16, 2019
    Assignee: MOTOROLA SOLUTIONS, INC.
    Inventors: Peter J. Bartels, Javier Alfaro, Hugo Garcia, Kevin Alonso, Stephen C. Glass
  • Patent number: 10247785
    Abstract: An assembled-battery system, a semiconductor circuit, and a diagnostic method enables appropriate self-diagnosis of a measuring unit. An output value (A-B) output from an analog-to-digital converter through power-supply lines, a cell-selection switch, and a level shifter is summed with an output value (B-VSS) obtained by a directly input reference voltage B being output from the analog-to-digital converter. When the summed value is considered equal the reference voltage A—the voltage VSS, it is diagnosed that an abnormality such as a breakdown has not occurred.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: April 2, 2019
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventors: Naoaki Sugimura, Takaaki Izawa
  • Patent number: 10175283
    Abstract: A determining device determining electrical leakage in a specified circuit having a voltage source, includes: an AC-signal-output unit that outputs an AC signal to a signal line connected to the specified circuit; a detecting unit that detects a peak value of the AC signal; and a determining unit determining electrical leakage of the specified circuit based on the peak value. The specified circuit includes switching elements switching the connection between the voltage source and a specified voltage to be conduction or blocking; and a determining device prohibits overlapping of the point of time when the switching elements are switched from conduction to blocking or the point of time when switched from the blocking state to the conducting state, and the period from the point of time when the AC-signal-output unit starts outputting the AC signal until the detecting unit detects the peak value of the AC signal.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: January 8, 2019
    Assignee: DENSO CORPORATION
    Inventor: Masakatsu Horiguchi
  • Patent number: 10124678
    Abstract: A control apparatus for a hybrid vehicle including an internal combustion engine, a motor, and a storage battery and configured to charge the storage battery with electric power generated as a result of regenerative braking and electric power generated by using output of the engine. The control apparatus executes a downhill control which decreases the remaining capacity of the storage battery before the vehicle enters a downhill section and executes a congestion control which increases the remaining capacity before it enters a congestion section. In addition the control apparatus determine which control is to be executed according to the positional relation between the start point of the downhill section and the start point of the congestion section when both a downhill section and a congestion section are contained in a planned travel route of the vehicle.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: November 13, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuki Ogawa
  • Patent number: 10101404
    Abstract: A battery monitoring device includes a first voltage measurement unit, a second voltage measurement unit, a current measurement unit, a cell voltage ratio calculation unit, a cell voltage calculation unit, and a trigger signal generation unit. The cell voltage ratio is a ratio of an individual cell voltage measurement value to a total sum of all cell voltage measurement values. The cell voltage measurement value is equal to the cell voltage ratio multiplied by the total voltage of all of the battery cells constituting the battery pack.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: October 16, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Mutsumi Suzuki, Mutsumi Kikuchi
  • Patent number: 10060988
    Abstract: A semiconductor device is performed a cell voltage measurement control for measuring each cell voltage of each target battery cell among a plurality of battery cells connected in series, using a difference voltage output circuit having first and second input terminals. In the measurement control, first and second connection states are formed with respect to each target battery cell so that each cell voltage is sequentially measured. Anode and cathode of each target battery cell are connected to the first and second input terminals in the first connection state, respectively, and the anode and cathode are connected to the second and first input terminal in a second connection state, respectively. Among the first and second connection states, a connection state that is first formed for a current target battery cell is the same as a connection state that has been last formed for a previous target battery cell.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 28, 2018
    Assignee: LAPIS Semiconductor Co., Ltd.
    Inventor: Masaru Sekiguchi
  • Patent number: 10041988
    Abstract: Electrical drain test systems and methods are disclosed. An example electrical drain test device includes a battery interface design with electrical cables to connect in-line with a battery and an electrical system under test. The example electrical drain test device also includes a battery disconnect switch. The switch has a first position to electrically connect the battery and the electrical system. The switch also has a second position to electrically connect the electrical system under test to the battery through a test circuit to test the electrical system under test for parasitic drain. The example electrical drain test device includes an output device to output a conclusive pass/fail result of the test of the electrical system by analyzing current curves through predetermined criteria programmed into the device.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: August 7, 2018
    Assignee: Grosch, LLC
    Inventor: Briant Grossi
  • Patent number: 9996991
    Abstract: An engine generator includes a generator body connected to an engine, a converter including rectifiers that convert an output from the generator body to DC current, an inverter that converts an output from the converter to AC current, an input voltage detector that detects an input voltage from the generator body to the converter, and an AC current detector that detects an AC current output from the inverter. An abnormality in the engine generator is determined if a state that a current detected by the AC current detector is not higher than a first threshold value and a duty ratio of a voltage detected by the input voltage detector is not higher than the second threshold value continues for a first predetermined time; or if the current detected by the AC current detector is not higher than a third threshold value and the duty ratio change rate is not higher than a fourth threshold value.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: June 12, 2018
    Assignee: YAMAHA MOTOR POWER PRODUCTS KABUSHIKI KAISHA
    Inventors: Koichi Taketomi, Keisuke Sugiura, Shinichi Suzuki
  • Patent number: 9990842
    Abstract: A learning alarm includes a sensor operatively connected to a processor to detect environmental properties and an alarm operatively connected to the processor to provide an alert if the environmental properties are outside an acceptable range. A user interface is operatively connected to the processor to accept user input indicating an alert corresponds to a nuisance condition. A memory is also operatively connected to the processor for storing detected environmental properties corresponding to the nuisance condition. The processor is configured to suppress alerts from the alarm based on detected environmental properties corresponding to the environmental properties of the nuisance condition stored in the memory.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: June 5, 2018
    Assignee: Carrier Corporation
    Inventors: Anis Zribi, Stan Burnette, Bill Chandler
  • Patent number: 9935343
    Abstract: A method for cycling a lithium-sulphur cell, said method comprising discharging a lithium-sulphur cell, terminating the discharge when the voltage of the cell reaches a threshold discharge voltage that is in the range of 1.5 to 2.1V, charging the lithium-sulphur cell, and terminating the charge when the voltage of the cell reaches a threshold charge voltage that is in the range of 2.3 to 2.4V, wherein the lithium-sulphur cell is not fully charged at the threshold charge voltage, and wherein the lithium-sulphur cell is not fully discharged at the threshold discharge voltage.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: April 3, 2018
    Assignee: Oxis Energy Limited
    Inventor: Lukasz Kabacik
  • Patent number: 9903918
    Abstract: An object of the present invention is to provide an apparatus for inspecting an all-solid battery with which a battery capacity where a voltage abnormality occurs can be grasped before the voltage abnormality occurs. The present invention is an apparatus for inspecting an all-solid battery including a storage section storing a relationship between the battery capacity where the voltage abnormality occurs and a resistance of the all-solid battery, and a resistance calculation section calculating the resistance based on a current and voltage in charging the all-solid battery, wherein the battery capacity where the voltage abnormality occurs in the all-solid battery is calculated from the relationship stored in the storage section and the resistance calculated in the resistance calculation section.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: February 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Norihiro Ose
  • Patent number: 9891285
    Abstract: A system includes a battery; an analog-to-digital converter coupled to the battery and capable of measuring an output voltage of the battery; a processor, receiving measured battery output voltages from the analog-to-digital converter; the processor using a first equivalent circuit model of the battery to estimate battery current when the battery operation is static; and the processor using a second equivalent circuit model of the battery to estimate battery current when the battery operation is dynamic.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: February 13, 2018
    Assignee: Texas Instruments Incorporated
    Inventors: Githin K. Prasad, Yevgen Barsukov, Yandong Zhang
  • Patent number: 9876261
    Abstract: A monitoring device for a battery, a lithium-ion battery with the monitoring device and a method for the monitoring of a battery, wherein the battery is provided with a plurality of cell composites comprising a number of mutually parallel-interconnected battery cells. The cell composites are also interconnected by means of electrical cell couplers, and one or more temperature sensors are arranged between the cell composites. Where a voltage drop across one or more of the battery cells on the electrical cell couplers exceeds a predetermined value and, simultaneously, a temperature occurs on at least one of the temperature sensors which exceeds a predetermined value, a fault signal is generated. The defective battery cell can then be isolated from the cell composite.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: January 23, 2018
    Assignee: Robert Bosch GmbH
    Inventor: Frank Stimm
  • Patent number: 9863817
    Abstract: A battery temperature monitoring circuit, which has a cold comparator and a hot comparator, achieves high accuracy in a small cell size by utilizing a cold current optimized for the cold comparator and a cold reference voltage, and a hot current optimized for the hot comparator and a hot reference voltage, along with switching circuitry that provides the cold current to the cold comparator as the battery temperature approaches the cold trip temperature, and the hot current to the hot comparator as the battery temperature approaches the hot trip temperature.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: January 9, 2018
    Assignee: NATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Luan Minh Vu, Thomas Y. Tse, Tuong Hoang
  • Patent number: 9853462
    Abstract: A series-parallel battery system with a buffer resistor coupled to each junction of batteries or battery cells. Buffer resistors on the same row are coupled to a measurement node. Terminals of the battery system and the measurement nodes are treated as measurement points that are coupled to a conventional battery management unit. The buffer resistors provide a means for limiting in-rush current and a means for maintaining voltage balance across the row of batteries in the parallel columns of batteries. A control unit in series with each series of batteries monitors current in the series and comprises a switch to deactivate the column when the current exceeds a set of predetermined current levels.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: December 26, 2017
    Assignee: Amperex Technology Limited
    Inventor: Li-Yan Zhu
  • Patent number: 9837158
    Abstract: A nonvolatile memory device includes a memory cell, and a switching unit. The memory cell includes a cell transistor having a floating gate and a coupling capacitor connected to the floating gate. The switching unit is coupled between the coupling capacitor and a bias terminal, and switches on or off based on the comparison result between a cell current flowing through the memory cell with a reference current during a program operation for programming the memory cell.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: December 5, 2017
    Assignee: SK Hynix Inc.
    Inventors: Hyun Min Song, Jeong Hoon Kim
  • Patent number: 9804230
    Abstract: Provided is a battery degradation detection device that detects the degradation state of a battery installed on a vehicle. The battery degradation detection device includes: a flag setting unit that sets, each time the vehicle is started, a flag indicating a sign of degradation of the battery on the basis of a voltage value of the battery at the start of the vehicle; a flag storage unit that stores the flag; a sign-of-degradation determination unit that determines whether or not the battery shows a sign of degradation on the basis of the number of times the flag has been stored in the past; and a degradation determination unit that determines whether or not the battery is in a degradation state on the basis of the voltage value of the battery when it is determined by the sign-of-degradation determination unit that the battery shows a sign of degradation.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 31, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayuki Akaishi, Yasuomi Takeuchi
  • Patent number: 9786609
    Abstract: A stress shield for a plastic integrated circuit package is disclosed. A shield plate is attached by an adhesive to a top surface of an integrated circuit die such that the shield plate covers less than all of the top surface and leaves bond pads exposed. A molding material is applied over the shield plate and the integrated circuit die. The shield plate shields the integrated circuit die from stresses imparted by the molding material.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: October 10, 2017
    Assignee: ANALOG DEVICES GLOBAL
    Inventors: Oliver J Kierse, Frank Poucher, Michael J Cusack, Padraig L Fitzgerald, Patrick Elebert
  • Patent number: 9716426
    Abstract: A lamp oscillator which outputs a sawtooth wave signal to be compared with an error signal of an output voltage in order to generate a PWM signal. The oscillator includes a first charging current changing circuit, in which a current amplifier converts a differential voltage between the error signal and a reference voltage into a current and outputs the converted current. When the load of a switching power supply circuit is heavy, a capacitor is charged with a constant current and generates a sawtooth wave signal having a predetermined slope. During a light load, the first charging current changing circuit adds the current, which increases as the load becomes lighter, to the current to thereby make the slope of the sawtooth wave signal steeper.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: July 25, 2017
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Takato Sugawara
  • Patent number: 9667082
    Abstract: It should be possible in a motor vehicle having an electric drive to allow a deep discharge of the electrochemical energy storage device by a control input (S18), which is otherwise forbidden. In the present case, it is counted how often the deep discharge has occurred, and an event is preferably triggered when a threshold value (i-limit) has been reached for a predetermined number of times, specifically a warning signal is outputted and/or the subsequent deep discharge is blocked (S26).
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: May 30, 2017
    Assignee: AUDI AG
    Inventor: Bernd Ritter
  • Patent number: 9660485
    Abstract: Improved mechanisms for automated control of harvested energy delivery are described. A device harvests and stores energy and activates a controller when a sufficient level of stored energy is achieved. The controller retrieves previous power-off state information determines status information, and activates and powers a powered device. Just before insufficient energy remains to power the powered device, the controller stores shutdown status information and enters a power-off state.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 23, 2017
    Assignee: Nokia Technologies Oy
    Inventors: Matti Juhani Naskali, Heikki Paananen
  • Patent number: 9548615
    Abstract: A shovel includes: an engine generating a drive power; a generator performing a generating operation using the drive power transmitted from the engine; an electric accumulator having a plurality of electric storage cells in which an electric power generated by the generator is accumulated, the electric accumulator supplying an electric power to an electric load of the shovel; and an equalizing circuit provided to each of the electric storage cells and including a discharge resistor and a switching circuit in order to equalize capacitances of the electric storage cells. A determination is made as to whether to activate the equalizing circuit based on a variation in outputs of the electric storage cells.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: January 17, 2017
    Assignee: SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
    Inventor: Jitsutaka Takeo
  • Patent number: 9527398
    Abstract: The described method and system provides for dynamic adjustment of the lower charge threshold of an electrically-powered vehicle to allow a vehicle low on battery charge to continue to be operated. The vehicle's telematics unit monitors the charge level via the vehicle bus or other vehicle resources to determine if the vehicle is running low on electric charge. If the telematics unit determines that the charge level is approaching, meets or falls below the lower threshold, the telematics unit communicates the vehicle position to a call center along with vehicle identification data. The call center determines the amount of charge required to reach one or more local charging stations or other points of interests and proposes destination recommendations to the driver. The driver may then select one of the recommendations, and the call center transmits a new lower charge threshold to the vehicle.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: December 27, 2016
    Assignee: GENERAL MOTORS LLC
    Inventors: Armando A. Duer, Michael L. Imel
  • Patent number: 9529048
    Abstract: A system and method for identifying and responding to exceptional charge events of series-connected energy storage elements.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 27, 2016
    Assignee: TESLA MOTORS, INC.
    Inventors: Francisco LePort, Scott Ira Kohn
  • Patent number: 9475400
    Abstract: A charging device for use with an electric vehicle including a power storage device. The charging device includes a power conduit configured to electrically couple the power storage device to the charging device. The charging device includes a first protection device configured to electrically isolate the charging device from the power storage device if a current flowing through the power conduit exceeds a current limit. The charging device also includes a controller configured to control the current flowing through the power conduit if the current flowing through the power conduit causes an integration threshold to be exceeded, wherein the integration threshold is representative of a predetermined amount of current that is enabled to flow through the power conduit over a predetermined period of time.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 25, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John Kenneth Hooker, Shawn Alan Morgan, Ivan Rodriguez Marcano
  • Patent number: 9455583
    Abstract: A battery pack, which supplies power to an electronic apparatus, includes a battery cell, a charger configured to receive power from an external source, and charge the battery cell by using the supplied power, and a charge controller configured to, when a voltage of the battery cell is lower than a predetermined first voltage even though the battery cell has a problem, control the charger to charge the battery cell.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-wook Choi, In-sung Hwang
  • Patent number: 9446679
    Abstract: A battery ECU provides an N-th arithmetic processing device with an ID assignment signal. The N-th arithmetic processing device receives the ID assignment signal, and stores an ID that is transmitted by the battery ECU. The battery ECU provides an i-th arithmetic processing device (i is a natural number from N to 2) with a command for providing an ID assignment signal. The i-th arithmetic processing device provides the (i?1)-th arithmetic processing device with the ID assignment signal in response to the command for providing an ID assignment signal. The (i?1)-th arithmetic processing device receives the ID assignment signal, and stores an ID that is transmitted by the battery ECU.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: September 20, 2016
    Assignee: SANYO ELECTRIC CO., LTD.
    Inventors: Shinya Kataoka, Osamu Nakano, Tsuyoshi Watanabe
  • Patent number: 9372239
    Abstract: A method for manufacturing a sealed battery (10) includes the steps of: measuring a voltage of the sealed battery (10) when a charging current of a predetermined value or more is caused to flow to the sealed battery (10) for a predetermined time after initial charging of the sealed battery (10); and determining whether a battery case (11) of the sealed battery (10) is damaged or not based on a change in the measured voltage. When an inclination of the voltage increases in a time change of the measured voltage, it may be determined that a recess (12) is present in the battery case (11) of the sealed battery (10).
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: June 21, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kosuke Iwase
  • Patent number: 9340122
    Abstract: A battery system monitoring apparatus that monitors a battery system is provided having a cell group having a plurality of unit cells connected in series, including: a first control device that controls the cell group; and a plurality of voltage detection lines that connect positive electrodes and negative electrodes of the unit cells to the first control device, for measuring inter-terminal voltages of the unit cells. The first control device includes a balancing switch connected between the voltage detection line connected to the positive electrode of each unit cell and the voltage detection line connected to the negative electrode thereof for conducting balancing discharge of the unit cell, for each of the unit cells. A first resistor is disposed in series with each of the voltage detection lines, a first capacitor is connected between the voltage detection line, and a GND which is a lowest-level potential of the cell group.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: May 17, 2016
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tatsumi Yamauchi, Akihiro Machida, Akihiko Kudo, Akihiko Emori, Mutsumi Kikuchi
  • Patent number: 9329241
    Abstract: A device for measuring a minimum cell voltage among cell voltages of a plurality of battery cells connected in series includes a plurality of ohmic resistors connected in series. The device is configured to be connected to a plurality of battery cells connected in series in such a way that a respective battery cell of the plurality of battery cells is associated with each ohmic resistor of the plurality of ohmic resistors according to the series connections. Each ohmic resistor of the plurality of ohmic resistors, with the exception of a first ohmic resistor, is configured to conduct the smaller of a current that corresponds to the cell voltage of the associated battery cell and the current that is conducted by a preceding ohmic resistor in the series connection.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 3, 2016
    Assignee: Robert Bosch GmbH
    Inventor: Stefan Butzmann
  • Patent number: 9281695
    Abstract: A method of charging a battery pack is provided. The method includes: electronically connecting a battery pack to a charger; detecting information regarding the battery pack; determining an appropriate charging regime based on the detected information; and applying the charging regime to the battery pack. A battery charger may also provided. The battery charger includes: a first terminal for connecting to a battery pack; a second terminal for connecting to a battery pack, a microprocessor operatively connected to the terminals and configured to receive a signal from at least one terminal regarding a battery pack connected to the terminal and control the charger to select and apply a charging regime to the battery pack according to the signal.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: March 8, 2016
    Assignee: Black & Decker Inc.
    Inventors: Nathan J. Cruise, Michelle L. Bowers, Snehal S. Choksi, Regina Gracia C. Cunanan, Geoffrey S. Howard, Alexis W. Johnson, Andrew E. Seman, Danh T. Trinh, Daniel J. White, R. Roby Bailey, Jr.
  • Patent number: 9267992
    Abstract: A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: February 23, 2016
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Takeyuki Shiraishi, Tomohiro Kawauchi, Takeshi Itagaki, Tomoshige Inoue, Daisuke Konishi
  • Patent number: 9222986
    Abstract: A distributed battery management device and a method thereof are provided. The method comprises: receiving, by a battery management control module, a first identification distribution request from a first data acquisition module; activating, by the battery management control module, the first data acquisition module for monitoring one or more batteries; and sending, by the battery management control module, a first identification message corresponding to the first identification distribution request, to the first data acquisition module. The device comprises: a battery management control module; and a first data acquisition module communicatively coupled with the battery management control module, wherein the battery management control module and the first data acquisition module are configured to communicate with each other to identify the data acquisition module.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: December 29, 2015
    Assignees: Shenzhen BYD Auto R&D Company Limited, BYD Company Limited
    Inventors: Xiaofeng Shen, Shuping Li, Jiaojiao Sun, Gang Liu, Haijun Yu
  • Patent number: 9213064
    Abstract: A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: December 15, 2015
    Assignee: GS YUASA INTERNATIONAL LTD.
    Inventors: Takeyuki Shiraishi, Tomohiro Kawauchi, Takeshi Itagaki, Tomoshige Inoue, Daisuke Konishi
  • Patent number: 9203255
    Abstract: The present invention provides a control method for an electric vehicle, comprising the steps of: measuring a current voltage of a battery cell module and an external temperature immediately before or after a start of charging; determining whether or not charging has been completed by measuring a charging voltage of the battery cell module after charging during a predetermined time set according to at least one of the current voltages and the external temperature; and calculating a voltage variation on the basis of the current voltage and the charging voltage if it is determined that charging has been completed, and determining whether the battery cell module is normal or abnormal on the basis of the voltage variation and a set reference voltage variation.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: December 1, 2015
    Assignee: LG Electronics Inc.
    Inventor: Jun Hyeon Hong
  • Patent number: 9194904
    Abstract: System and methods for detecting electrical leakages in a battery sensing are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to detect certain electrical leakages and implement one or more actions to protect vehicle systems from damage resulting from such leakages.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 24, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Fang Wang, Andrew K. Chandler, Paul W. Kelley, Richard H. Miller
  • Patent number: 9157967
    Abstract: Systems and methods for assessing voltage threshold detection circuitry of individual battery cells within a battery pack supplying power to a vehicle are disclosed. One example system comprises, a plurality of battery cells within a battery pack, a plurality of voltage threshold detecting circuits detecting voltage of the plurality of battery cells, a voltage of a first battery cell of the plurality of battery cells coupled to a first voltage threshold detecting circuit of the plurality of voltage threshold detecting circuits, and a network that selectively couples a second battery cell to the first voltage detecting circuit while the first battery cell is coupled to the first voltage detecting circuit.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 13, 2015
    Assignee: A123 Systems LLC
    Inventors: Paul W. Firehammer, John H. Floros
  • Patent number: 9153972
    Abstract: A battery monitoring apparatus for monitoring a battery condition of an assembled battery. In the apparatus, a monitoring unit is powered by the assembled battery and transitions from a normal mode, in which power supply from the assembled battery to the monitoring unit is maintained, to a dark-current mode, in which the power supply is partially interrupted, in response to a mode-switching instruction signal from a control unit. Upon reception of a mode confirmation signal from the control unit during the normal mode, the monitoring unit transmits a response signal to the control unit. The control unit transmits the mode-switching instruction signal to the monitoring unit, and thereafter transmits the mode confirmation signal to the monitoring unit. Upon reception of the response signal to the mode confirmation signal from the monitoring unit, the control unit determines that the dark-current mode of the monitoring unit is malfunctioning.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: October 6, 2015
    Assignee: DENSO CORPORATION
    Inventor: Takumi Shimizu
  • Patent number: 9119158
    Abstract: The present invention relates to an apparatus and method for monitoring a battery lifespan of a machine type communication device, and more particularly, to an apparatus and method for preventing a disconnection in communication due to a battery being expended by verifying a battery lifespan of the machine type communication device in a network. The present invention may include detecting a residual capacity of a battery power supply, comparing the residual capacity of the battery power supply to a threshold required for a power supply, and warning against a shortage of the residual capacity of the battery power supply when the residual capacity of the battery power supply is less than or equal to the threshold required for the power supply.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 25, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hye Yeon Kwon, Moon Soo Jang, Ae Soon Park
  • Patent number: 9091733
    Abstract: A method of inspecting a secondary battery includes: discharging the secondary battery initially charged, at a discharge current, from an initial voltage to a discharge ending voltage; calculating an interval capacity in a voltage interval from a check starting voltage to a check ending voltage, based on the discharge current, and discharge time taken in the voltage interval; measuring a voltage change amount from a point in time when the voltage reaches a first voltage to a point in time when a length of time elapses from the above point in time, when the secondary battery is discharged from the initial voltage to the discharge ending voltage; and determining whether a total capacity satisfies a performance requirement, by comparing the calculated interval capacity with a first threshold value, and determining whether an output satisfies a performance requirement, by comparing the measured voltage change amount with a second threshold value.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: July 28, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Seigo Nakamura
  • Patent number: 9057750
    Abstract: A method for testing a testing device for determining a voltage state of an on-board high-voltage electrical system of a motor vehicle includes establishing a predetermined voltage state in the on-board high-voltage electrical system by supplying a test voltage to the on-board high-voltage electrical system and determining the voltage state with the testing device and comparing the determined voltage state with the predetermined voltage state This ensures that, before maintenance work on the on-board high-voltage electrical system is performed, a voltage-free state of the on-board high-voltage electrical system determined by the testing device is actually present, thereby eliminating risk to maintenance personnel due to an accidentally applied voltage.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: June 16, 2015
    Assignee: AUDI AG
    Inventor: Marco Thömmes
  • Patent number: 9050902
    Abstract: Provided are a hybrid vehicle and control method thereof. The hybrid vehicle has a power storage device, an internal combustion engine, a power generation device, an input device and an electronic control unit. The electronic control unit is configured to control charging of the power storage device by the power generation device in such a manner that charging of the power storage device is promoted when an increase of the power storage amount is requested through the input device, and in a state where an increase of the power storage amount has been requested through the input device, to suppress charging of the power storage device when a travel load is small, as compared to when the travel load is large, and to mitigate suppression of charging of the power storage device when a predefined condition is met during suppression of charging of the power storage device.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: June 9, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuma Aoki, Koji Hokoi, Hiroki Endo
  • Patent number: 9035616
    Abstract: State based full and empty control for rechargeable batteries that will assure a uniform battery empty condition, even in the presence of a load on the battery. A fuel gauge provides a prediction of the open circuit voltage of the battery, and when the predicted open circuit voltage of the battery reaches the predetermined open circuit voltage of an empty battery, the load is terminated, after which the battery will relax back to the predetermined open circuit voltage of an empty battery. A similar technique is disclosed for battery charging, allowing faster battery charging without overcharging. Preferably an RC battery model is used as the fuel gauge to provide the prediction, but as an alternative, a coulomb counter may be used to provide the prediction, with error correction between successive charge discharge cycles.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: May 19, 2015
    Assignee: Maxim Integrated Products, Inc.
    Inventor: Jason Allen Wortham
  • Patent number: 9024572
    Abstract: A battery block composed of a plurality of battery cells and a voltage detecting circuit (state detecting circuit) for detecting a voltage between terminals of each battery cell are included, and a flexible printed circuit board, in which a voltage detecting line for electrically connecting a positive electrode terminal or a negative electrode terminal of the battery cell and the voltage detecting circuit (state detecting circuit) is integrated with a substrate made or a flexible material, is provided.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: May 5, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yoshitomo Nishihara, Keiji Kishimoto, Kazumi Ohkura, Kenji Taguchi
  • Publication number: 20150115900
    Abstract: A battery voltage measuring circuit for an implantable cardiac device is presented. Since the usable battery voltage for the device is limited to an upper range of voltages, the need for measuring lower voltages at which the battery is approaching end of life is of no use. The disclosed invention allows for the measurement of a selectable upper range of battery levels that can be chosen without using a level shifting device such as a zener diode. Multiple voltage ranges with associated measurement resolutions can be achieved without using high current zener diode implementations. This allows for a trade-off between measurement range and resolution while resulting in a lower power and more accurate measurement circuit. Conventional zener diode implementations only allow for a single measurement range and are prone to non-linear error as the voltage measurement range increases.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: Cameron Health, Inc.
    Inventor: Ravi S. Ananth
  • Publication number: 20150102819
    Abstract: A lithium-ion energy store (1), comprising an electrode having a main section (2) and having a measuring section (3) electrically isolated from the main section, a counterelectrode (4) and a separator (5) between the electrode and the counterelectrode, wherein a measuring cell, which forms a part of the lithium-ion energy store, comprises the measuring section (3) of the electrode, a counterelectrode measuring section, which is situated opposite the measuring section (3) of the electrode in relation to the separator (5), and a section of the separator (5) that is arranged between the measuring sections (3) of the electrode and the counterelectrode.
    Type: Application
    Filed: October 13, 2014
    Publication date: April 16, 2015
    Inventor: Stefan Butzmann
  • Patent number: 9007068
    Abstract: A method is provided for current-based detection of an electrical fault in an electrical network of a motor vehicle, the network having at least: one battery, one pulse-controlled inverter, one d.c. voltage converter, and an intermediate circuit associated with the pulse-controlled inverter. The method includes: detecting magnitudes of each a battery current, a d.c. voltage converter current, and an intermediate circuit current; comparing current magnitudes according to provided equations; and checking based on the comparison of whether a specifiable deviation has been exceeded. An alternative method for voltage-based detection of an electrical fault in an electrical network of a motor vehicle includes: detecting magnitudes of each a battery voltage, a d.c. voltage converter voltage, and an intermediate circuit voltage; comparing voltage magnitudes according to provided equations; and checking based on the comparison of whether a specifiable deviation has been exceeded.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: April 14, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Beqir Pushkolli, Ulrich Klein