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公开(公告)号：US11214208B2
公开(公告)日：2022-01-04
申请号：US15038665
申请日：2013-11-28
发明人： Jerker Lennevi , Tobias Smidebrant
摘要： A traction voltage system in a vehicle includes a junction box with multiple connectors for electrical components, which components include electrical supplies and electrical loads, and an electronic control unit arranged to monitor current flowing flow to or from the components. A controller or a circuit breaker is arranged to control the supply of power to each respective component, and at least all but one of the connectors are provided with a current sensor arranged to transmit a signal representing detected current values to the electronic control unit. The electronic control unit is arranged to determine an instantaneous current value flowing to or from each component, to compare the instantaneous current value with a predetermined limit value for each connector, and to take action in response to the comparison. A method for controlling the traction voltage system is also provided.
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公开(公告)号：US11440433B2
公开(公告)日：2022-09-13
申请号：US16954244
申请日：2018-12-20
发明人： Simon Brunet , Tobias Smidebrant
摘要： The invention relates to a method (100) for determining an adjusted state-of-charge (SOC) operating window of a battery pack assembly in a vehicle. The method comprises the steps of determining (120) an energy throughput or an electrical current through put of the battery pack assembly; determining (130) a SOC operating window margin based on said determined energy throughput or electrical current through put of the battery pack assembly;adjusting (140) the SOC operating window in response to the determined SOC operating window margin.
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公开(公告)号：US10065632B2
公开(公告)日：2018-09-04
申请号：US14770066
申请日：2013-03-11
发明人： Jerker Lennevi , Tobias Smidebrant
IPC分类号： B60W20/50 , B60W20/20 , B60L3/00 , B60W10/00 , F02N11/08 , B60L11/14 , B60L11/18 , B60L15/20
摘要： A method is provided for operating a hybrid electric vehicle including an internal combustion engine and an electrical system, which electrical system includes at least one electronic control unit, an engine-driven electric machine (operable as a motor for driving the vehicle or as a generator for supplying power to one or more electrical loads via a high voltage traction bus, and a high voltage battery pack coupled to the high voltage traction bus by at least one contactor arranged to connect the battery pack to the high voltage traction bus. If it is determined that the at least one parameter indicates a condition preventing the battery pack from being connected to the high voltage bus, the electric machine is operated in voltage control mode during operation of the vehicle until the condition is eliminated, whereafter the high voltage bus is pre-charged and the high voltage battery pack reconnected.
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公开(公告)号：US10377261B2
公开(公告)日：2019-08-13
申请号：US15535996
申请日：2014-12-15
发明人： Tobias Smidebrant
IPC分类号： B60L58/15 , B60L50/16 , B60L50/51 , B60L53/00 , B60L58/13 , B60L15/20 , B60L3/00 , B60L7/10 , B60L11/18
摘要： A device/method for the control of a charge operation and the State Of Charge (SOC) of an electrical Energy Storage System (ESS), e.g. a battery, that includes a multitude of cells is provided. The ESS is electrically connected to a propulsion system of a vehicle in order to power an Electric Motor. The method includes charging the ESS from an electrical power source, e.g., the grid, when the vehicle is at standstill, stopping the charging when the SOC level of the ESS is above a maintenance limit for the SOC level of the ESS, monitoring the battery and/or performing a service operation of the ESS after the ESS has been charged to a SOC level above the maintenance limit for the SOC level of the ESS, deliberately discharging the ESS to lower the SOC level. The SOC level of the ESS is reduced to a take-off limit for the SOC level of the ESS which is set in order to allow the vehicle to be controlled to use regenerative braking for charging of the ESS under subsequent driving when the vehicle is restarted and takes off.
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公开(公告)号：US09937815B2
公开(公告)日：2018-04-10
申请号：US14911848
申请日：2013-08-15
CPC分类号： B60L11/1866 , B60L11/14 , B60L11/1809 , B60L11/1861 , B60L2240/547 , B60L2240/80 , B60L2250/12 , H01M10/4257 , H01M10/441 , H01M10/482 , H01M2010/4271 , H01M2010/4278 , H01M2220/20 , Y02T10/70 , Y02T10/7005 , Y02T10/7044 , Y02T10/7061 , Y02T10/7077 , Y10S903/907
摘要： A method is provided for balancing an energy storage system that includes a plurality of connected battery cells in a vehicle including an electric machine arranged for propulsion of the vehicle. The method includes monitoring a need for balancing of the cells, initiating a request for the balancing based on the operational condition related to the battery cells, discharging or charging the energy storage system until the state of charge of the energy storage system has reached a predetermined level, and balancing the voltage of the battery cells. The method further includes allowing input instructions representing a time schedule for the balancing upon initiating the request for balancing, and initiating the discharging so that the energy storage system reaches the predetermined level of the state of charge in accordance with the input instructions. An arrangement for balancing an energy storage system is also provided.
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公开(公告)号：US09868360B2
公开(公告)日：2018-01-16
申请号：US14769823
申请日：2013-02-27
发明人： Tobias Smidebrant , Jerker Lennevi
IPC分类号： H02J7/00 , B60L11/18 , B60L1/00 , B60L3/00 , B60L3/12 , B60L7/20 , B60L11/14 , B60L11/16 , B60L15/20
CPC分类号： B60L11/1866 , B60L1/003 , B60L1/006 , B60L3/0046 , B60L3/12 , B60L7/20 , B60L11/14 , B60L11/16 , B60L11/1803 , B60L11/1861 , B60L11/1862 , B60L15/20 , B60L15/2009 , B60L2200/18 , B60L2200/36 , B60L2240/34 , B60L2240/423 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2240/80 , B60L2260/44 , H02J7/0014 , H02J7/0016 , Y02T10/645 , Y02T10/70 , Y02T10/7005 , Y02T10/7044 , Y02T10/7055 , Y02T10/7061 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
摘要： A method is provided for balancing the voltage of multiple series-connected electrochemical cells of an electrical storage system of a hybrid electric vehicle. The method includes discharging the electrical storage system by operating at least one large electrical machine of the vehicle at vehicle standstill until the state of charge of the electrical storage system or the cell having the lowest state of charge has reached a predetermined level, and subsequently balancing the voltage of the cells.
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公开(公告)号：US11831185B2
公开(公告)日：2023-11-28
申请号：US17660314
申请日：2022-04-22
发明人： Anton Klintberg , Faisal Altaf , Tobias Smidebrant
CPC分类号： H02J7/0013 , B60L58/18 , H02J7/0031 , H02J7/0063
摘要： A method for operating a switching arrangement of an energy storage system, the energy storage system comprising a plurality of parallelly arranged battery packs and the switching arrangement comprising an associated contactor for each battery pack, the contactors being configured to connect and disconnect the battery packs relative a load by closing and opening, respectively. The method comprises disconnecting the battery packs from the load by means of the contactors such that the battery packs are disconnected in a sequence in which one contactor is opened last and thereby subject to increased disconnection wear, controlling the sequence in which the battery packs are disconnected in such a way that the increased disconnection wear is accounted for and used to distribute contactor wear among the contactors during subsequent disconnections of the battery packs from the load.
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公开(公告)号：US20220009374A1
公开(公告)日：2022-01-13
申请号：US17370549
申请日：2021-07-08
发明人： Tobias Smidebrant
摘要： The invention relates to a control system for controlling an electric energy system (1) for propulsion of a vehicle (100), wherein the electric energy system comprises:
a traction voltage bus (2); a plurality of batteries (3′, 3″) electrically connectable to each other via the traction voltage bus (2), and wherein each battery is electrically connectable to the traction voltage bus by at least one contactor (A, B); wherein the control system comprises a respective battery control unit (BMU1, BMU2) for each one of the plurality of batteries, wherein the control system further comprises: a master electronic control unit (MECU) for controlling the plurality of batteries, wherein the master electronic control unit (MECU) is communicatively connected to each one of the battery control units (BMU1, BMU2), and wherein the master electronic control unit (MECU) is configured to provide a predefined electric interference to the traction voltage bus (2) after a signal to open the at least one contactor (A, B) of each battery (3′, 3″) has been provided, and wherein each battery control unit (BMU1, BMU2) is configured to detect the predefined electric interference, and when the predefined electric interference is detected by at least one of the battery control units (BMU1, BMU2), the at least one battery control unit (BMU1, BMU2) is further configured to issue a signal indicative of that the predefined electric interference was detected. The invention further relates to an electric energy system (1), a method and a vehicle (100).-
公开(公告)号：US09766298B2
公开(公告)日：2017-09-19
申请号：US14898296
申请日：2014-05-23
发明人： Jerker Lennevi , Tommy Hjelle , Tobias Smidebrant , Niklas Legnedahl , Johanna Gustafsson , Hanna Bryngelsson
CPC分类号： G01R31/3679 , B60L3/12 , B60L11/1857 , B60L11/1862 , B60L2240/547 , B60L2240/80 , G01R31/3606 , G01R31/3627 , G01R35/005 , Y02T10/7005 , Y02T10/7044 , Y02T10/705
摘要： A method for estimation of state-of-health (SOH) characteristics of a battery in hybrid vehicles includes charging and discharging the battery at least one time within an upper region of a state-of-charge (SOC) window, wherein the battery; charging and discharging the battery at least one time within a lower region of the SOC window, calibrating a battery management unit included in the hybrid vehicle by using the reached levels outside the SOC window, and estimating the SOH characteristics of the battery during the charge and discharge periods by using the battery management unit.
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公开(公告)号：US20240278690A1
公开(公告)日：2024-08-22
申请号：US18441278
申请日：2024-02-14
IPC分类号： B60L58/40
CPC分类号： B60L58/40 , B60L2240/12 , B60L2240/26 , B60L2240/36 , B60L2240/545 , B60L2240/642 , B60L2240/662
摘要： A computer system and a method for controlling a power producing assembly of a vehicle is described. The power producing assembly includes a fuel cell system and an energy storage system comprising one or more batteries. The method includes identifying an upcoming driving event of the vehicle, said upcoming driving event comprising following a route in a geographic location, identifying a current operating condition of the vehicle,-using driving event information, including power output from a fuel cell system, for driving events following the same route which have previously been performed under determined operating conditions, and determining a desirable power output profile from the fuel cell system during the identified upcoming driving event for the current operating condition on the basis of the driving event information.
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