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1. 发明申请

WO2021121672A1 METHOD FOR DETERMINING AN ELECTRIC ENERGY STORAGE SYSTEM STATE-OF-POWER VALUE 审中-公开
公开(公告)号：WO2021121672A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/066874
申请日：2020-06-18
申请人： VOLVO TRUCK CORPORATION
发明人： ALTAF, Faisal , KLINTBERG, Anton
IPC分类号： B60L3/12 , B60L58/21 , B60L58/14 , B60L58/15 , B60L58/16 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2260/44
摘要： The present disclosure relates to a method for determining an electric energy storage system state-of-power value (SOPESS; SOPESS(k)), the electric energy storage system state-of-power value being indicative of the total maximum amount of electric load that an electric energy storage system (18) can deliver or receive at a constant load level during a predetermined future time range without violating a state-of-power, defined by a state-of-power value (SOPi; SOPi(k)), for any one of said battery units (24, 26), the electric energy storage system comprising at least two battery units (24, 26) electrically connected in parallel to each other, the method comprising: - for each battery unit (24, 26) in the electric energy storage system (18), determining the battery unit state-of-power value (SOPi; SOPi(k)), the battery unit state-of-power value (SOPi; SOPi(k)) being indicative of the maximum amount of electric load that the battery unit (24, 26) can deliver or receive at a constant load level during the predetermined future time range without violating electro-thermal limits of the battery unit (24, 26), - for each battery unit in the electric energy storage system, obtaining a battery unit measured load value (Li; Li(k)) indicative of the electric load actually imparted on the battery unit (24, 26) at a certain time instant, - on the basis of the battery unit measured load value for each battery unit in the electric energy storage system, determining a load distribution amongst the battery units of the electric energy storage system, and - determining the electric energy storage system state-of-power value on the basis of the battery unit state-of-power values (SOPi; SOPi(k)) and on the load distribution.

2. 发明申请

WO2020128068A1 IMPROVED METHOD FOR CONTROLLING AN ENERGY STORAGE SYSTEM 审中-公开
公开(公告)号：WO2020128068A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/086835
申请日：2019-12-20
申请人： VOLVO TRUCK CORPORATION
发明人： ALTAF, Faisal , KLINTBERG, Anton
IPC分类号： B60L3/12 , B60L58/21 , B60L58/14 , B60L58/15 , B60L58/16
摘要： The invention relates to a method for management of an energy storage system (ESS) of a vehicle, wherein said vehicle comprises a vehicle control unit (VCU) and an energy storage control management unit (ESCM), wherein said ESS comprises at least two battery units electrically connected in parallel to each other.

3. 发明申请

WO2021121609A1 A METHOD FOR ESTIMATING CAPACITY OF A BATTERY UNIT 审中-公开
公开(公告)号：WO2021121609A1
公开(公告)日：2021-06-24
申请号：PCT/EP2019/086430
申请日：2019-12-19
申请人： VOLVO TRUCK CORPORATION
发明人： KLINTBERG, Anton , ALTAF, Faisal , FRIDHOLM, Björn
IPC分类号： G01R31/367 , G01R31/388 , G01R31/3835
摘要： A method for estimating a capacity (Q) of a battery unit (202) in an energy storage system (200) of a vehicle (201), the method comprising: - during at least a first no-load condition of the battery unit, measuring a terminal voltage (Vb) of the battery unit at a number of points in time to determine a transient voltage response of the battery unit, - from the transient voltage response of the battery unit during at least the first no-load condition, estimating at least a first value of an open circuit voltage (Voc) of the battery unit by means of a battery model, - estimating the capacity (Q) of the battery unit based on at least the estimated at least first value of the open circuit voltage.

4. 发明申请

WO2021121673A1 METHOD FOR PREDICTING AN ELECTRIC LOAD IMPARTED ON EACH BATTERY UNIT IN AN ELECTRIC ENERGY STORAGE SYSTEM 审中-公开
公开(公告)号：WO2021121673A1
公开(公告)日：2021-06-24
申请号：PCT/EP2020/066919
申请日：2020-06-18
申请人： VOLVO TRUCK CORPORATION
发明人： ALTAF, Faisal , KLINTBERG, Anton
IPC分类号： B60L3/12 , B60L58/21 , B60L58/14 , B60L58/15 , B60L58/16 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2260/44
摘要： The present disclosure relates to a method for predicting an electric load (Li) imparted on each battery unit in an electric energy storage system (18) comprising at least two battery units (24, 26) electrically connected in parallel to each other. The method comprises: - establishing a battery parameter set, the battery parameter set comprising at least the following values for each battery unit (i) in the electric energy storage system: an internal ohmic resistance value (R0i) indicative of the internal ohmic resistance of the battery unit (i) and an open circuit voltage value (Voci) indicative of the open circuit voltage of the battery unit (i), - using an electric load level (LESS) indicative of a total electric energy storage system load, and - using the electric load level (LESS) and the battery parameter set for predicting the imparted load (Li) on each battery unit (i) in the electric energy storage system (18).

5. 发明申请

WO2020128066A1 IMPROVED METHOD FOR CONTROLLING AN ENERGY STORAGE SYSTEM 审中-公开
公开(公告)号：WO2020128066A1
公开(公告)日：2020-06-25
申请号：PCT/EP2019/086833
申请日：2019-12-20
申请人： VOLVO TRUCK CORPORATION
发明人： ALTAF, Faisal , KLINTBERG, Anton
IPC分类号： B60L3/12 , B60L58/21 , B60L58/14 , B60L58/15 , B60L58/16
摘要： The invention relates to a method for management of an energy storage system (ESS) of a vehicle, wherein said vehicle comprises a vehicle control unit (VCU) and an energy storage control master unit (ESCM), wherein said ESS comprises at least two battery units electrically connected in parallel to each other.

6. 发明公开

EP4299367A1 A METHOD AND SYSTEM FOR DETERMINING AN ELECTRICAL ENERGY STORAGE PACK REPLACEMENT CONFIGURATION 审中-公开
公开(公告)号：EP4299367A1
公开(公告)日：2024-01-03
申请号：EP22182283.6
申请日：2022-06-30
申请人： VOLVO TRUCK CORPORATION
发明人： ALTAF, Faisal , HAMRIN, Alice , KLINTBERG, Anton , FRIDHOLM, Björn
IPC分类号： B60L53/80 , B60L58/16 , B60L58/18
摘要： The invention relates to a method for determining an electrical energy storage pack replacement configuration of a propulsion electrical energy storage (2) of a vehicle (1) comprising several electrical energy storage packs (BP1-BP4), the method comprising: classifying (S104) a vehicle usage type using vehicle driving pattern data of the vehicle as input data; determining (S104) a minimum state of health required for usage according to the classified vehicle usage type; determining (S106) a state of health of each of the electrical energy storage packs of the vehicle; concluding (S108) a replacement of the electrical energy storage packs having state of health lower than the minimum state of health; determining (S110) a load distribution between electrical energy storage packs after reconfiguration including replacement electrical energy storage packs and maintained electrical energy storage packs; and once electrical energy storage pack replacement is performed, determining (S112) a load sharing factor indicative of a load distribution between the electrical energy storage packs, and depending on the outcome of comparing the load sharing factor to a predetermined condition, performing (S114) a reconfiguration of the electrical energy storage to more equally distribute the load across the electrical energy storage packs.

7. 发明公开

EP4299370A1 A METHOD AND SYSTEM FOR RECONFIGURING AN ELECTRICAL ENERGY STORAGE SYSTEM COMPRISING MULTIPLE ELECTRICAL ENERGY STORAGE PACKS 审中-公开
公开(公告)号：EP4299370A1
公开(公告)日：2024-01-03
申请号：EP22182307.3
申请日：2022-06-30
申请人： VOLVO TRUCK CORPORATION
发明人： ALTAF, Faisal , KLINTBERG, Anton , FRIDHOLM, Björn
IPC分类号： B60L58/16 , B60L58/18 , B60L58/21 , B60L53/80 , B60L58/22
摘要： The invention relates to a method for reconfiguring electrical energy storage packs of an electrical energy storage system (2) of a vehicle (1), the method comprising: determining (S102) a state of health of each of the electrical energy storage packs (BP1-BP4) of the vehicle; detecting (S104) at least one malfunctioning electrical energy storage pack (BP4) of the electrical energy storage system; determining (S106) an uncertainty measure for each of the determined state of health's; concluding (S108) to replace the electrical energy storage packs (BP3) having state of health lower than a minimum state of health, and electrical energy storage packs that are concluded to be malfunctioning, evaluating (S110) the determined state of health's and the corresponding uncertainties for maintained electrical energy storage packs and a set of replacement electrical energy storage packs to find a combination of maintained electrical energy storage packs and replacement electrical energy storage packs that fulfil energy and power requirements for the vehicle taking the uncertainties in state of health into account; determining (S112) a new configuration of the electrical energy storage system including the combination of maintained electrical energy storage packs and replacement electrical energy storage packs, providing (S114) a signal indicating an arrangement of the electrical energy storage packs according to the new configuration, once electrical energy storage pack replacement is performed, determining (S116) a load sharing factor (α) indicative of a load distribution between the electrical energy storage packs of the new configuration, and if the load sharing factor fulfils a predetermined condition, performing (S118) a reconfiguration of the electrical energy storage pack to more equally distribute the load across the electrical energy storage packs.

8. 发明公开

EP4063884A1 A METHOD FOR ESTIMATING OR PREDICTING AN INTERNAL BATTERY STATE OF A BATTERY UNIT 审中-公开
公开(公告)号：EP4063884A1
公开(公告)日：2022-09-28
申请号：EP21164358.0
申请日：2021-03-23
申请人： VOLVO TRUCK CORPORATION
发明人： KLINTBERG, Anton , ALTAF, Faisal
IPC分类号： G01R31/382 , G01R31/367 , G01R31/36 , B60L58/12
摘要： The invention relates to a method for estimating or predicting an internal battery state of at least one battery unit (203) within an electric energy storage system (201), such as in a vehicle (200), the method comprising:
- obtaining operational data of the electric energy storage system relating to operating conditions of the electric energy storage system,
- feeding the obtained operational data to a non-linear state observer adapted to estimate and/or predict the internal battery state of the at least one battery unit in a series of time steps, such that an observer error of the non-linear state observer converges towards zero, or towards a value close to zero,
- based on at least the obtained operational data, estimating or predicting the internal battery state using the non-linear state observer.
The non-linear state observer is a switched multi-gain observer switching between at least two different static observer gains, wherein the observer gain to be used is selected based on a predicted or estimated value of the internal battery state as determined by the nonlinear state observer.

9. 发明公开

EP4084265A1 A METHOD FOR OPERATING A SWITCHING ARRANGEMENT OF AN ENERGY STORAGE SYSTEM 审中-公开
公开(公告)号：EP4084265A1
公开(公告)日：2022-11-02
申请号：EP21171095.9
申请日：2021-04-29
申请人： VOLVO TRUCK CORPORATION
发明人： KLINTBERG, Anton , ALTAF, Faisal , SMIDEBRANT, Tobias
IPC分类号： H02J7/00 , B60L50/60 , H01H1/00
摘要： The present invention relates to a method for operating a switching arrangement of an energy storage system, the energy storage system comprising a plurality of parallelly arranged battery packs (131...133) and the switching arrangement comprising an associated contactor (141...143) 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.

10. 发明公开

EP4084035A1 A SWITCHING ARRANGEMENT 审中-公开
公开(公告)号：EP4084035A1
公开(公告)日：2022-11-02
申请号：EP21171108.0
申请日：2021-04-29
申请人： VOLVO TRUCK CORPORATION
发明人： KLINTBERG, Anton , ALTAF, Faisal , SMIDEBRANT, Tobias
IPC分类号： H01H9/54
摘要： The present invention relates to a switching arrangement (10) for reducing contactor wear of an energy storage system having a plurality of battery packs arranged in parallel for powering a load, the switching arrangement comprising:
- a contactor for each battery pack, the contactors being configured to connect and disconnect the battery packs relative the load by closing and opening, respectively,
- an electric arc reducing circuitry (20) associated to one of the contactors, wherein the switching arrangement is configured to electrically disconnect the battery packs from the load by means of the contactors such that the contactor being associated with the electric arc reducing circuitry is opened last.

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