Electricity Storage (e.g., Battery, Capacitor) (epo/jpo) Patents (Class 903/907)
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Publication number: 20120312122Abstract: A powertrain for a vehicle includes an engine and a transmission having an input member, an output member, and a neutral state in which torque is not transmitted from the input member to the output member. A first motor/generator is coupled to the engine. A second motor/generator is coupled with vehicle wheels directly or indirectly through the transmission. The first motor/generator acts as a generator when powered by the engine to provide electric power to the second motor/generator. The second motor/generator acts as a motor when receiving electric power from a battery or from the first motor/generator. A shift selector is moved by a vehicle operator to establish an electric propulsion mode in which the transmission is in the neutral state and the second motor/generator functions as a motor.Type: ApplicationFiled: June 10, 2011Publication date: December 13, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Michael Andrew Miller, Alan G. Holmes, Brendan M. Conlon, Steven A. Tarnowsky
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Publication number: 20120316716Abstract: A nonaqueous electrolyte battery includes: an electrode group including a positive electrode and a negative electrode; and a nonaqueous electrolyte including an electrolytic solution, the electrode group including an insulating layer, the insulating layer containing a ceramic, the electrolytic solution including an electrolyte salt and an additive, the electrolyte salt including the compound of formula (1), and the additive being at least one of the compounds of formulae (2) to (14), and the compound of formula (1) being contained in 0.001 mol/L to 2.5 mol/L with respect to the electrolytic solution.Type: ApplicationFiled: May 31, 2012Publication date: December 13, 2012Applicant: SONY CORPORATIONInventors: Toru Odani, Tadahiko Kubota
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Publication number: 20120312615Abstract: An improved protection system for a battery pack mounted between the passenger cabin floor panel of an electric vehicle and the driving surface is provided, the system utilizing a ballistic shield mounted under the electric vehicle and interposed between the battery pack enclosure and the driving surface, where the ballistic shield is spaced apart from the enclosure bottom panel. A layer of a compressible material is interposed between the ballistic shield and the battery pack enclosure.Type: ApplicationFiled: August 13, 2012Publication date: December 13, 2012Applicant: TESLA MOTORS, INC.Inventor: Peter Dore Rawlinson
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Patent number: 8326478Abstract: When passage through a road pricing area where an exhaust gas emission vehicle is subjected to billing is predicted, an ECU calculates a stored energy quantity available for EV traveling based on the current SOC of a power storage device, and estimates a required energy quantity for passing through the road pricing area by EV traveling. The ECU further calculates a deficit of the stored energy quantity relative to the required energy, and if a deficit is found, executes vehicle control for preparing a vehicle condition for passage through the road pricing area corresponding to the energy deficit.Type: GrantFiled: February 12, 2009Date of Patent: December 4, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Shinji Ichikawa
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Patent number: 8324858Abstract: The invention relates to systems and methods for charging a vehicle. A vehicle and charging station can be designed such that an electric or hybrid vehicle can operate in a fashion similar to a conventional vehicle by being opportunity charged throughout a known route.Type: GrantFiled: July 1, 2009Date of Patent: December 4, 2012Assignee: Proterra Inc.Inventors: Dale Hill, Michael Walker, Joshua Goldman, John Horth
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Publication number: 20120303193Abstract: The invention relates to vehicles for transporting persons and/or goods, which vehicles travel on roads or alternatively on rails and at least partially use electrical energy using electric motors as drive units, wherein the electrical energy used is predominantly or substantially produced within the vehicle by converting kinetic energy, in particular components of the kinetic energy that are caused on the vehicle bodywork as gravitation effects and components of the kinetic energy from curve centrifugal forces and acceleration motions of the vehicle body, the vertical dynamic acceleration motions of the wheels and wheel suspensions, and other components, wherein the electrical energy generated in such away is temporarily stored in chemical energy stores (batteries) and/or other suitable storage media, for example, high-power capacitors or flywheel stores, until the electricity is used in the vehicle drive motors and/or other loads.Type: ApplicationFiled: June 24, 2010Publication date: November 29, 2012Applicant: INTERTRONIC GRESSER GMBHInventor: German Gresser
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Publication number: 20120298433Abstract: A plurality of separators are arranged to line up in an X-direction on a cooling plate to respectively correspond to a plurality of battery cells. The separators corresponding to the odd-numbered battery cells and the separators corresponding to the even-numbered battery cells are arranged in opposite directions in the X-direction. On a bottom surface portion of each of the separators, the corresponding battery cell is arranged. In this case, one side surface or the other side surface of each of the battery cells contacts a side surface portion of the corresponding separator, and a bottom surface of each of the battery cells contacts the bottom surface portion of the corresponding separator.Type: ApplicationFiled: May 25, 2012Publication date: November 29, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventor: Kazumi OHKURA
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Publication number: 20120301755Abstract: A method is provided for controlling the temperature of a traction battery in a hybrid vehicle, where the hybrid vehicle includes an internal combustion engine and an electric motor for traction power. The method includes providing a first temperature regulating circuit for the internal combustion engine, providing a second temperature regulating circuit for the traction battery, heating the traction battery by an electrical heater provided in the second temperature regulating circuit in series with a pump, a radiator and the traction battery, transferring power to the heater via a DC/DC converter in the second temperature regulating circuit from the electrical motor, which electrical motor is driven by the internal combustion engine, while the battery is below a predetermined temperature interval.Type: ApplicationFiled: October 9, 2009Publication date: November 29, 2012Applicant: VOLVO LASTVAGNAR ABInventors: Tobias Axelsson, Guy Mouden, Johan Larsson, Jerker Lennevi
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Patent number: 8314595Abstract: In a hybrid electric motor vehicle , a power supply system for storing and supplying electrical power includes a motor-generator located onboard the vehicle, driveably connected to the vehicle wheels and producing AC electric power, an energy storage device for alternately storing and discharging electric power, an inverter coupled to the motor-generator and the energy storage device for converting alternating current produced by the motor-generator to direct current transmitted to the energy storage device, and for converting direct current stored in the energy storage device to alternating current transmitted to the motor-generator, an off board source of AC electric power located external to the vehicle, and a charger coupled to said electric power source and the energy storage device for supplying DC electric power to the energy storage device from said AC electric power source.Type: GrantFiled: June 9, 2009Date of Patent: November 20, 2012Assignee: Ford Global Technologies, LLCInventors: Kerry E. Grand, Venkatapathi R. Nallapa, Fazal U. Syed, Ming L. Kuang
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Patent number: 8306692Abstract: An input/output control device for a secondary battery mounted on a vehicle includes a current estimating unit estimating a battery current input to or output from the secondary battery based on an input/output power of the secondary battery and outputting an estimated value (estimated current (Is)), a current sensor measuring the battery current and outputting a measured value (measured current (It)), and an input/output control unit controlling the input/output power based on the estimated value and the measured value. The input/output control device controls the input/output of the secondary battery, using the measured current (It) as well as the estimated value (Is), and therefore can suppress more reliably significant increase in heating value of the secondary battery and its peripheral parts.Type: GrantFiled: March 5, 2008Date of Patent: November 6, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Teruo Ishishita
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Patent number: 8305032Abstract: The Centralized Vehicle Load Management System is hierarchical in nature in that it detects and remediates an overload which can be highly localized at one or more electrical substations or an overload which is widely distributed as a cumulative set of sub-critical loads. The Centralized Vehicle Load Management System operates to determine the load presented to the Electric Power Grid by vehicles which are served by service disconnects which are located at a plurality of points on the Electric Power Grid. The Centralized Vehicle Load Management System regulates the demands presented by the vehicles to the E-Grid thereby to spread the load presented to the Electric Power Grid over time to enable the controllable charging of a large number of vehicles.Type: GrantFiled: May 6, 2009Date of Patent: November 6, 2012Assignee: Lava Four, LLCInventor: Daniel Bernard McKenna
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Publication number: 20120247107Abstract: A battery module includes a rigid external casing made, for example, of a metallic sheet material. Securement features, tabs, and so forth may be formed in the material of the casing. The casing may be made by stamping and bending metallic sheet. A liner is disposed in the casing, and one or more battery cells are disposed in the liner. The liner may comprise an insulative sheet material that is cut and folded to generally conform to the casing. The structure may include a bus bar assembly, compression members, a thermal component and other structural and functional elements.Type: ApplicationFiled: March 29, 2012Publication date: October 4, 2012Applicant: Johnson Controls Technology LLCInventors: Mikhail S. Balk, Richard M. DeKeuster, Binbin Fan
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Publication number: 20120235624Abstract: Systems and methods for controlling multiple storage devices are provided. A system may include a first storage device and a second storage device, each adapted to store and release electrical energy. The system may also include a controller coupled to the first storage device, the second storage device, and a load. The controller is adapted to optimize operation of the system relative to a first system parameter by controlling the channeling of electric charge in a variable manner between the first storage device, the second storage device, and the load.Type: ApplicationFiled: March 16, 2012Publication date: September 20, 2012Applicant: Johnson Controls Technology CompanyInventors: Brian C. Sisk, Thanh T. Nguyen, Perry M. Wyatt, Ryan S. Mascarenhas, Junwei Jang
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Patent number: 8269446Abstract: When an electric vehicle outputs a torque instruction, firstly, a request torque is acquired and a judged whether the acquired request torque is positive or negative. Regardless of the sign of the request torque, it is judged whether the eco-switch is ON. If the request torque has a positive sign and the eco-switch is OFF, a map A is selected. If the eco-switch is ON, a map B which limits the maximum torque to a low value for the map A is selected. If the request torque has a negative sign, a map C is selected regardless of the eco-switch ON/OFF state and the maximum torque is not limited.Type: GrantFiled: June 30, 2011Date of Patent: September 18, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Masayoshi Suhama, Hideto Hanada, Masaki Okamura, Hiroaki Kioka, Ken Iwatsuki
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Patent number: 8269452Abstract: A battery charge monitoring device for monitoring feed of electric power from a power source installation to a battery, the power source installation being disposed separately from a vehicle on which the battery is mounted, and the vehicle using the electric power fed from the battery as a drive source for traveling, includes a vehicle storage portion which stores therein vehicle identification information allotted to the vehicle, a vehicle side communication portion which performs a power line communication with a power source side communication portion of the power source installation through a power line for feeding the electric power from the power source installation to the battery, and a vehicle side control portion which controls the vehicle side communication portion so as to transmit the vehicle identification information stored in the vehicle storage portion, to the power source side communication portion, when a communication channel is established between the power source side communication portioType: GrantFiled: July 2, 2009Date of Patent: September 18, 2012Assignee: Yazaki CorporationInventor: Jin Watanabe
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Patent number: 8265821Abstract: A method for determining a voltage level across an electrical circuit of a powertrain includes measuring a plurality of voltage levels and utilizing a comparison test between at least two voltage levels of the plurality of voltage levels to determine the circuit voltage level.Type: GrantFiled: October 16, 2008Date of Patent: September 11, 2012Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke AktiengesellschaftInventors: Wei D. Wang, William R. Cawthorne, Aniket Kothari, Nicholas Kokotovich, Wei Ren, Bo Zhang
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Patent number: 8265815Abstract: A method of controlling output torque in a hybrid or electric vehicle transmissions includes calculating a first long-term output torque constraint and a first short-term output torque constraint. A first effective output torque constraint is determined from at least one of the first long-term and short-term output torque constraints. The first effective output torque constraint is bounded by both of the first long-term and short-term output torque constraints. The method may further include calculating a rate limit, such that determining the first effective output torque constraint includes restricting the magnitude of changes in the first long-term output torque constraint to the calculated rate limit. A spread between the first short-term output torque constraint and the first effective output torque constraint may be measured, and the rate limit calculated as a function of that spread. The rate limit may also be calculated with an inversely-proportional relationship to the spread.Type: GrantFiled: November 25, 2009Date of Patent: September 11, 2012Assignee: GM Global Technology Operations LLCInventors: Sean W McGrogan, Anthony H. Heap
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Patent number: 8258743Abstract: The E-Grid Sub-Network Load Manager operates to regulate the demands presented by the vehicles to the associated Sub-Network thereby to spread the load presented to the service disconnect over time to enable the controllable charging of a large number of vehicles. The load management can be implemented by a number of methodologies, including: queuing requests and serving each request in sequence until satisfaction; queuing requests and cycling through the requests, partially serving each request, then proceeding to the next until the cyclic partial charging service has satisfied all requests; ordering requests pursuant to a percentage of recharge required measurement; ordering requests on an estimated connection time metric; ordering requests on a predetermined level of service basis; and the like. It is evident that a number of these methods can be concurrently employed thereby to serve all of the vehicles in the most efficient manner that can be determined.Type: GrantFiled: May 6, 2009Date of Patent: September 4, 2012Assignee: Lava Four, LLCInventors: Richard M. Tyler, Daniel B. McKenna, James M. Graziano
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Patent number: 8258650Abstract: The invention relates to an electric circuit for an automobile, that comprises a ground line (M), an onboard network (R) with a battery (1) connected to the network (R) and to the ground (M) by a branch (b1) comprising a switch (K1) and by a second branch (b2) including a switch (K2), an alternator (3) connected to the battery, a starter and consumer members (4) connected to said onboard network and to the ground. The circuit further includes a voltage holding device that comprises a bridge (b3) connecting the branch (b1) to the branch (b2) and a capacitor (2) connected to the bridge (b3) at a location between the third switch (K2) and the second branch (b2), and an internal supply device (8) that allows the current flow in the second branch (b2) only when recharging the capacitor (2).Type: GrantFiled: December 2, 2008Date of Patent: September 4, 2012Assignee: Peugeot Citroen Automobiles SAInventors: Herve Perseval, Bernard Boucly
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Publication number: 20120217452Abstract: Provided are a mixed cathode active material including lithium manganese oxide expressed as Chemical Formula 1 and a stoichiometric spinel structure Li4Mn5O12 having a plateau voltage profile in a range of 2.5 V to 3.3 V, and a lithium secondary battery including the mixed cathode active material. The mixed cathode material and the lithium secondary battery including the same may have improved safety and simultaneously, power may be maintained more than a required value by allowing Li4Mn5O12 to complement low power in a low state of charge (SOC) range. Therefore, a mixed cathode active material able to widen an available SOC range and a lithium secondary battery including the mixed cathode active material may be provided and properly used in a plug-in hybrid electric vehicle (PHEV) or electric vehicle (EV).Type: ApplicationFiled: May 9, 2012Publication date: August 30, 2012Inventors: Jung Hwan PARK, Song Taek Oh, Geun Chang Chung, Su Hwan Kim, Juichi Arai
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Publication number: 20120217076Abstract: An embodiment of a system for the storage of electric energy with reduced thickness for a vehicle with electric propulsion; the storage system has: a support plane; and a plurality of chemical batteries, each of which includes at least one electrochemical cell which rests on the support plane and has a flat parallelepiped shape with two mutually parallel, opposite larger bases; in each chemical battery the electrochemical cell is arranged parallel to the support plane and rests a larger lower base on the support plane; and each chemical battery includes its own compression system which presses directly on a larger upper base of the electrochemical cell opposite to the larger lower base, keeps the electrochemical cell pressed against the support plane, and is independent from the compression systems of the other batteries.Type: ApplicationFiled: February 24, 2012Publication date: August 30, 2012Applicant: FERRARI S.P.A.Inventor: Fabrizio FAVARETTO
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Patent number: 8249768Abstract: A method and an apparatus for controlling the hybrid drive of a motor vehicle having the following components: internal combustion engine (VKM), manual transmission (SG), at least one electrical machine (Emi), at least one clutch (Kj) and an energy storage device (ES), and at least one driven axle (HA; VA) are intended to provide maximum efficiency and service life of the components. To this end, a decision is made about which operating modes (AMK) are possible on the basis of a driver input (FW) and operating state, a division is made about which gears (Gj) are available for the possible operating modes (AMK), so that a larger number of modes (AMGK) are available for selection, operating points which correspond to the driver input are determined for all these modes (AMGK), taking into account the operating state and system state (SZA), the modes (AMGK) are assessed and the mode (AMGK*) which is assessed as being most expedient is selected.Type: GrantFiled: December 11, 2007Date of Patent: August 21, 2012Assignee: Magna Steyr Fahrzeugtechnik AG & Co. KGInventors: Peter Mori, Theodor Schöberl, Helmut Martin, Florian Kramer, Clemens Burow, Jan-Erik Hein, Manfred Posch
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Patent number: 8249769Abstract: In a hybrid vehicle equipped with an engine, a planetary gear mechanism linked to the output shaft of the engine and to a driveshaft, a first motor linked the planetary gear, a second motor inputting and outputting power to and from the driveshaft, and a battery inputting and outputting electric power to and from the motors, when the battery temperature Tb is lower than the preset reference temperature Tbref, drive control prohibits the intermittent operation of the engine and controls the engine and the motors to output the torque demand to the driveshaft with warm-up control of the battery. When the battery temperature Tb is higher than or equal to the preset reference temperature Tbref and the cooling water temperature Tw is higher than or equal to the preset reference temperature Twref, drive control performs the intermittent operation of the engine and controls the engine and the motors to output the torque demand to the driveshaft.Type: GrantFiled: April 22, 2008Date of Patent: August 21, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takao Itoh, Koji Yamamoto
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Patent number: 8242627Abstract: A path for charging a main battery from an external power source is established by turning on a first relay and a second relay. This charging path is provided independently of an electric path between a motor generator for generating a vehicle driving force and the main battery established by turning on a third relay. Further, an auxiliary load system including an auxiliary battery is not connected to the above-mentioned electric path, but receives operating power through a power line between the second relay and a power converter so as to be operable even with the third relay turned off.Type: GrantFiled: January 21, 2009Date of Patent: August 14, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Shinji Ichikawa
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Patent number: 8244422Abstract: In the case where a connector of a charging cable is connected to a charging connector provided on a hybrid vehicle, a connector signal CNCT indicating that the connector of the charging cable is connected to the charging connector provided on the hybrid vehicle is input to a power supply ECU and an HV_ECU having an operating frequency higher than that of the power supply ECU. When the connector signal CNCT is input, the power supply ECU activates the HV_ECU. The HV_ECU controls the electrical system of the hybrid vehicle so as to charge a battery pack. The HV_ECU stops the charging when the input of the connector signal CNCT is stopped during charging of the battery pack.Type: GrantFiled: September 2, 2008Date of Patent: August 14, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yoshinori Fujitake
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Patent number: 8232875Abstract: A degradation evaluating unit collects data related to a power storage device from a vehicle through a power cable, and based on the collected data, evaluates the state of degradation of the power storage device. A data processing unit reads data related to the state of degradation of the power storage device evaluated by degradation evaluating unit from a storage unit, and processes the read data related to the state of degradation to a first display item for a user, a second display item for a dealer and a third display item for a manufacturer. A display control unit controls display of the data processed by data processing unit on a display terminal.Type: GrantFiled: June 24, 2009Date of Patent: July 31, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masatoshi Uchida
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Publication number: 20120187919Abstract: A battery charging system and a method for a increasing endurance of a high voltage battery in a hybrid electric vehicle includes a high voltage battery for vehicle propulsion, a generator for charging the high voltage battery, a DC/DC converter for converting a high voltage to a low voltage, a low voltage battery charged with the low voltage, and an alternator, driven by an engine, and connected with the low voltage battery in parallel with the voltage converter. The method includes registering a parameter, where the parameter is at least one of a state of charge of said high voltage battery, and energy inflow/outflow to/from said high voltage battery to said vehicle drive motor or said generator, and controlling the low voltage in dependence of the registered parameter.Type: ApplicationFiled: April 27, 2010Publication date: July 26, 2012Applicant: Volvo Lastvagnar ABInventors: Christian Andersson, Jan Grundberg, Tommy Hjelle
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Publication number: 20120186891Abstract: A motor vehicle has an electrochemical cell, which includes an electrode stack of at least two electrodes in a parallel arrangement. The electrochemical cell is arranged outside an engine compartment of the motor vehicle in an accommodation compartment of the motor vehicle, the cross-sectional surface of which is tapered in the direction of the vertical axis of the vehicle. A cross-sectional surface of the electrochemical cell is thereby adapted to the cross-sectional surface of the accommodation compartment. Thus, particularly good use is made of the available space in the motor vehicle.Type: ApplicationFiled: August 4, 2010Publication date: July 26, 2012Applicant: Siemens AktiengesellschaftInventors: Martin Schuessler, Alois Stauber
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Patent number: 8229612Abstract: A hybrid vehicle equipped with an engine, a planetary gear mechanism linked to the output shaft of the engine and to a driveshaft, a first motor linked to the planetary gear, a second motor inputting and outputting power to and from the driveshaft, and a battery inputting and outputting electric power to and from the motors. When a cooling water temperature Tw of the engine is lower than a threshold Twref, the intermittent operation of the engine is prohibited, and a controller performs a warm-up control on a condition that a battery temperature Tb is a preset reference temperature T?, while performing a low state of charge control on condition that a battery temperature Tb is higher than or equal to a preset reference temperature T? and lower than a preset reference temperature T?.Type: GrantFiled: April 22, 2008Date of Patent: July 24, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takao Itoh, Koji Yamamoto
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Publication number: 20120176082Abstract: Disclosed is a battery pack system to supply current necessary to operate an external device, including a battery module including battery cells which can be charged and discharged, a temperature sensor, an auxiliary power unit to supply a charge and discharge pulse current to the battery module, and a controller to connect the auxiliary power unit to the battery module so that the charge and discharge pulse current is supplied to the battery module when a measured temperature (Tbat) of the battery module is less than a set temperature (Tcrit) based on information detected by the temperature sensor before the battery module is electrically connected to the external device and to interrupt the supply of the charge and discharge pulse current to the battery module when the temperature of the battery module becomes equal to or greater than the set temperature (Tcrit) and an operating method of the same.Type: ApplicationFiled: February 27, 2012Publication date: July 12, 2012Applicant: LG CHEM, LTD.Inventors: JinKyu LEE, Jin Seok HEO, Min Chul JANG, DalMo KANG
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Patent number: 8205700Abstract: A power storage device is mounted on a rear portion of a vehicle. The power storage device includes a high-voltage terminal and a low-voltage connector having a lower voltage than the high-voltage terminal. The high-voltage terminal is arranged on a front side in the vehicle. The low-voltage connector is arranged on a rear side in the vehicle.Type: GrantFiled: May 1, 2007Date of Patent: June 26, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Yazaki CorporationInventors: Shuichi Nagata, Hajime Oyanagi, Hideomi Adachi
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Patent number: 8207705Abstract: The present invention provides a charging apparatus capable of efficiently charging battery in view of power consumption and a charging method. The charging apparatus has a charging unit which charges a battery, a remaining capacity detecting unit which detects remaining capacity of the battery, a necessary charging capacity obtaining unit which obtains charging capacity necessary for use after completion of the charging of the battery, an additional charging capacity calculating unit which calculates additional charging capacity for additionally charging the battery based on the remaining capacity and the necessary charging capacity of the battery, a charging current determining unit which determines a charging current at the time when the charging unit charges for the additional charging capacity based on power consumption generated at the time of charging for the additional charging capacity, and a control unit which controls the charging unit based on the determined charging current.Type: GrantFiled: July 2, 2009Date of Patent: June 26, 2012Assignee: Sony CorporationInventors: Osamu Nagashima, Kei Tashiro, Yoichi Miyajima, Toshio Takeshita
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Publication number: 20120146578Abstract: A section of roadway has at least one integrated induction loop designed to inductively charge a vehicle battery of a hybrid or electric vehicle that is situated on the induction loop. The section of roadway is arranged in the region of a road in which the traffic is at least temporarily stationary. As a result, useless time waiting at traffic lights or railway crossing gates can be used productively.Type: ApplicationFiled: December 5, 2011Publication date: June 14, 2012Applicant: DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFTInventor: Richard Krestel
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Patent number: 8198855Abstract: Provided is a charging cable capable of detecting an abnormal state, such as a break, of a control line through which a pilot signal is transmitted, the charging cable including: a power cable through which an external power source feeds a power storage device; a signal generating circuit for generating a control signal to output to a vehicle; a control line L1 through which the control signal is transmitted to the vehicle; and a bypass circuit for changing a voltage applied from a vehicle side through the control line L1.Type: GrantFiled: July 6, 2009Date of Patent: June 12, 2012Assignees: Fujitsu Ten Limited, Toyota Jidosha Kabushiki Kaisha, Denso CorporationInventors: Satoshi Fukui, Kenichi Ishii, Ryuichi Kamaga, Masahiro Karami
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Patent number: 8198859Abstract: The E-Grid Sub-Network Load Manager operates to regulate the demands presented by vehicles to the associated Sub-Network thereby to spread the load presented to the service disconnect over time to enable controllable charging of a large number of vehicles. Load management can be implemented by a number of methodologies, including: queuing requests and serving each request in sequence until satisfaction; queuing requests and cycling through the requests, partially serving each one, then proceeding to the next until the cyclic partial charging service has satisfied all of the requests; ordering requests pursuant to a percentage of recharge required measurement; ordering requests on an estimated connection time metric; ordering requests on a predetermined level of service basis; and the like. It is evident that a number of these methods can be concurrently employed thereby to serve all of the vehicles in the most efficient manner that can be determined.Type: GrantFiled: May 6, 2009Date of Patent: June 12, 2012Assignee: Lava Four, LLCInventors: Richard M. Tyler, Daniel B. McKenna, James M. Graziano
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Publication number: 20120136517Abstract: A method and apparatus is provided for obtaining improved power generation efficiency by operating the primary power source, such as an ICE, only at the most efficient operating modes for a given engine, and simultaneously supplementing the power provided by the ICE with additional power stored in an accumulator, such as an ultra capacitor, as the load demands would otherwise cause that ICE to operate outside of the more efficient operating modes. In the case of a hybrid electric vehicle, the present invention would use banks of ultra-capacitors instead of batteries not just to start the ICE but also to supplement the electric power available for wheel drive motors when the ICE is in operation. According to the present invention, a control device would maintain the ICE at specific operational modes, either off, idle, or specific fuel efficient operating conditions over the entire range of vehicle operation.Type: ApplicationFiled: November 29, 2010Publication date: May 31, 2012Inventor: Peter Bauer
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Patent number: 8187736Abstract: A cooling system for hybrid vehicles is provided with a battery case with a battery storage room for receiving a battery, a motor control unit for controlling an electric motor and a DC-DC converter for converting a voltage of the battery. The cooling system includes a blower for drawing an air existing in a passenger compartment of a vehicle, an introduction duct through which the air is introduced into the battery storage room to cool the battery, a first supply duct through which the air is supplied from the battery storage room to the DC-DC converter to cool the latter, a second supply duct through which the air is supplied from the battery storage room to the motor control unit to cool the latter, and an air distributor means for distributing the air flowing out of the battery storage room to the first supply duct and the second supply duct.Type: GrantFiled: February 1, 2007Date of Patent: May 29, 2012Assignee: Halla Climate Control Corp.Inventors: Min Woo Park, Dae Woong Lee, Hyung Joo Kim, Il Guk Son, Sung Je Lee
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Patent number: 8190320Abstract: A method of optimizing the operation of the power source of an electric vehicle is provided, where the power source is comprised of a first battery pack (e.g., a non-metal-air battery pack) and a second battery pack (e.g., a metal-air battery pack). The power source is optimized to minimize use of the least efficient battery pack (e.g., the second battery pack) while ensuring that the electric vehicle has sufficient power to traverse the expected travel distance before the next battery charging cycle. Further optimization is achieved by setting at least one maximum speed limit based on vehicle efficiency and the state-of-charge (SOC) of the first and second battery packs.Type: GrantFiled: December 10, 2010Date of Patent: May 29, 2012Assignee: Tesla Motors, Inc.Inventors: Kurt Russell Kelty, Vineet Haresh Mehta, Jeffrey Brian Straubel
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Patent number: 8183820Abstract: Embodiments include a power processing system and methods of its operation in a plug-in electric vehicle. The power processing system includes at least one AC electric motor, a bi-directional inverter system, and an electronic control system. The electronic control system provides a drive function by providing first control signals to the bi-directional inverter system which, in response, draws DC electrical power from a DC energy source, converts the DC power to AC power, and provides the AC power to windings of the at least one AC electric motor. The electronic control system also provides a charging function by providing second control signals to the bi-directional inverter system which, in response, draws AC power from the windings of the at least one AC electric motor, converts the AC power to DC power, and provides the DC power to the DC energy source in order to recharge the DC energy source.Type: GrantFiled: July 21, 2008Date of Patent: May 22, 2012Assignee: GM Global Technology Operations LLCInventors: Mohammad N. Anwar, Erkan Mese
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Patent number: 8180512Abstract: A method of optimizing the operation of the power source of an electric vehicle is provided, where the power source is comprised of a first battery pack (e.g., a non-metal-air battery pack) and a second battery pack (e.g., a metal-air battery pack). The power source is optimized to minimize use of the least efficient battery pack (e.g., the second battery pack) while ensuring that the electric vehicle has sufficient power to traverse the expected travel distance before the next battery charging cycle. Further optimization is achieved by setting at least one acceleration limit based on vehicle efficiency and the state-of-charge (SOC) of the first and second battery packs.Type: GrantFiled: December 10, 2010Date of Patent: May 15, 2012Assignee: Tesla Motors, Inc.Inventors: Kurt Russell Kelty, Vineet Haresh Mehta, Jeffrey Brian Straubel
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Publication number: 20120112533Abstract: A power supply system for a hybrid automotive vehicle having a battery which produces a first high voltage sufficient to power one or more electric motors to propel the vehicle. A first voltage step down circuit is connected to the battery circuit which reduces the first voltage to a second voltage sufficient to actuate fuel injectors in the internal combustion engine also used to propel the vehicle. A second step down voltage circuit is connected to either the battery circuit or the first voltage step down circuit which reduces the voltage to a third voltage sufficient to power a low voltage electrically powered device in the drive system of a vehicle.Type: ApplicationFiled: November 9, 2010Publication date: May 10, 2012Inventors: Terrance Lee Yarmak, Gary Whelan, Larry Lee Aho
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Patent number: 8169183Abstract: An electric automobile has a battery and also has a travel motor and a vehicle interior load device which operate using electric power from the battery. In response to a request for a start of electric power supply to the vehicle interior load device with the automobile being at a standstill, the electric automobile determines, based on the charged state of the battery, whether electric power from the battery can be supplied to the vehicle interior load device. When determining that the electric power from the battery cannot be supplied to the vehicle interior load device, the electric automobile makes a request to an electric power supply device to supply electric power to the vehicle interior load device. In response to the request, the electric power supply device electrically connects to the vehicle interior load device and starts supply of electric power to the vehicle interior load device.Type: GrantFiled: April 18, 2008Date of Patent: May 1, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Kazuyoshi Obayashi
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Publication number: 20120091972Abstract: A system for charging a plurality of power storage devices includes a first charging device and at least one other charging device coupled to the first charging device to form a network. The first charging device includes a processor programmed to determine whether said first charging device possesses a network token, and if so, to determine a first charging parameter and a first priority associated with said first charging device, a second charging parameter and a second priority associated with said second charging device, and to determine a second amount of current to be at least one of received from the electrical supply or supplied to the first power storage device, based on the determined first and second charging parameters and first and second priority.Type: ApplicationFiled: October 21, 2011Publication date: April 19, 2012Inventors: Radoslaw Narel, Cecil Rivers, JR.
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Patent number: 8143842Abstract: The E-Grid Sub-Network Load Manager operates to regulate the demands presented by the vehicles to the associated Sub-Network thereby to spread the load presented to the service disconnect over time to enable the controllable charging of a large number of vehicles. The load management can be implemented by a number of methodologies, including: queuing requests and serving each request in sequence until satisfaction; queuing requests and cycling through them, partially serving each request, then proceeding to the next until the cyclic partial charging service has satisfied all requests; ordering requests pursuant to a percentage of recharge required measurement; ordering requests on an estimated connection time metric; ordering requests on a predetermined level of service basis; and the like. It is evident that a number of these methods can be concurrently employed thereby to serve all of the vehicles in the most efficient manner that can be determined.Type: GrantFiled: May 6, 2009Date of Patent: March 27, 2012Assignee: Lava Four, LLCInventors: Richard M. Tyler, Daniel B. McKenna, James M. Graziano
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Publication number: 20120070716Abstract: Provided is a battery pack that ensures sufficient sealing performance between a tray and a cover by arranging a necessary sealing member between a lower flange portion of the tray and an upper flange portion of the cover that are held in abutment with each other. The tray and the cover covering the tray constitute a packaging case of electric cells. At least a part of a facing surface of at least one of the lower flange portion of the tray and the upper flange portion of the cover that abut each other forms a non-abutting portion that is located apart from the facing surface of the opposite flange portion, and a sealing member is arranged on the non-abutting portion.Type: ApplicationFiled: September 15, 2011Publication date: March 22, 2012Applicant: Lithium Energy JapanInventors: Toshiki Yoshioka, Toshiki Kusunoki
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Patent number: 8136617Abstract: During an operation of an engine, an input limit Swin and an output limit Swout of a battery are set to a power demand-based input limit Wp*, which depends on a power demand P*, and to an accelerator opening-based output limit Wacc, which depends on an accelerator opening Acc (steps S400 to S420). This control technique effectively prevents the battery from being frequently charged or discharged to a relatively high level of electric power within an allowable electric power range defined by the reference input limit Bwin and the reference output limit Bwout, thus restraining premature deterioration of the battery.Type: GrantFiled: June 3, 2005Date of Patent: March 20, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Yoshiaki Kikuchi
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Publication number: 20120055727Abstract: In the event of collision of a vehicle, a control device for a power converting apparatus in the vehicle is supplied with a power source voltage for operations thereof, using electric power resulting from residual charges accumulated in smoothing capacitors provided in the power converting apparatus. With such a configuration, even if a power source voltage for the control device is not supplied from outside the power converting apparatus due to disconnection of a line, the residual charges accumulated in the smoothing capacitor provided in the power converting apparatus can be discharged.Type: ApplicationFiled: May 13, 2009Publication date: March 8, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Omiya, Hiromichi Kuno
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Publication number: 20120050945Abstract: Disclosed is an ionic liquid: wherein: n is 1 or 2; R1 is selected from H and (C1-C6)alkyl; R2 is selected from —(CH2)wO[(CH2)xO(CH2)y]m(CH2)zCH3 and wherein w is 1 to 6, x is 1 to 6, y is 0 to 6, z is 0 to 6, m is 0 to 3 and [w+m(x+y)+z] is less than or equal to 12; and R3 is selected from H and methyl, wherein if n is 1 then R3 is methyl, and if n is 2 then R3 is H. Also disclosed are electrochemical devices and devices employing such electrochemical devices as energy sources.Type: ApplicationFiled: February 8, 2011Publication date: March 1, 2012Applicant: INVISTA NORTH AMERICA S.A R.L.Inventors: Kenneth Richard Seddon, Tayeb Belhocine, Alberto V. Puga, Keith Whiston
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Patent number: 8125180Abstract: An electrical port is integrated within a side view mirror assembly of an automotive vehicle. The electrical port is electrically connected with a charging system of the vehicle. The electrical port may be coupled with a power source remote from the vehicle to power the charging system. The electrical port may be concealed or exposed depending on a position of the side view mirror assembly.Type: GrantFiled: May 12, 2008Date of Patent: February 28, 2012Assignee: Ford Global Technologies, LLCInventors: Duane M. Grider, Bala Chander, Dale Gilman, David W. Schultz, Michael Kevin Martin
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Publication number: 20120046815Abstract: A method for limiting the adverse effects of temperature on the electrical energy storage system (ESS) of an electric vehicle after the vehicle has been turned off is provided. In general, whether or not coolant is circulated through a coolant loop coupled to the ESS depends on the difference between the ambient temperature and a preset temperature, the preset temperature typically corresponding to the temperature of the ESS.Type: ApplicationFiled: November 1, 2011Publication date: February 23, 2012Applicant: TESLA MOTORS, INC.Inventors: Weston Arthur Hermann, Scott Ira Kohn, Kurt Russell Kelty, Vineet Haresh Mehta, Jeffrey Brian Straubel