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公开(公告)号：EP3998667A1
公开(公告)日：2022-05-18
申请号：EP21158095.6
申请日：2021-02-19
IPC分类号： H01M10/42 , H01M10/48 , G01R31/382 , B64C29/00
摘要： The present invention relates to a battery management system for an electric air vehicle such as an eVTOL aircraft for observing a battery system state and optionally a battery health state of an energy storage system of the air vehicle. Based on an observation result, a state prediction, in particular, a prediction of the remaining accessible energy, can be carried out during a flight according to a planned flight profile and a range of the flight is determined. Hence, it can be confirmed during the flight that the intended destination can be safely reached with the remaining accessible energy. Otherwise, an alert to an operator is issued. State observation according to the present invention is performed using a two-lane architecture, wherein vehicle management computers are integrated in each of two independent and dissimilar lanes each including battery cell measurement equipment and independently performing a state observation using dissimilar algorithms.
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公开(公告)号：EP3998486A1
公开(公告)日：2022-05-18
申请号：EP21158091.5
申请日：2021-02-19
发明人： KURTZ, Johannes , SCHUHMANN, Moritz
IPC分类号： G01R31/36 , B60L58/10 , G01R31/3828 , G01R31/3842 , G01R31/392 , G01R31/00
摘要： The present invention relates to a battery management system and method for performing a battery state and optionally health parameter observation, in particular cell state-of-charge (SOC) observation, with two redundant, independent and dissimilar lanes. Specifically, a SOC determination in a first one of the lanes is based on Coulomb Counting. The other lane employs a different algorithm than Coulomb Counting. In embodiments, a battery health observation is further performed independently by the two lanes, wherein the first lane employs an ageing model and the other lane a different (dissimilar) algorithm. On the basis of state and health observation, state (state of function) of the battery system can be predicted to determine a range of flight in accordance with a predetermined flight profile.
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公开(公告)号：EP4295432A1
公开(公告)日：2023-12-27
申请号：EP22703326.3
申请日：2022-01-28
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公开(公告)号：EP3998487A1
公开(公告)日：2022-05-18
申请号：EP21158082.4
申请日：2021-02-19
发明人： KURTZ, Johannes , SCHUHMANN, Moritz
IPC分类号： G01R31/367 , G01R31/389 , G01R31/392 , B60L58/10 , G01R31/00
摘要： The present invention relates to a battery management system and method for performing a battery health parameter observation, in particular cell impedance observation, with two redundant, independent and dissimilar lanes. Specifically, a cell impedance observation in a first one of the lanes is based on Electrochemical Impedance Spectroscopy, EIS. The other lane employs a different algorithm than EIS. In embodiments, a battery state observation is further performed independently by the two lanes, wherein again the first lane employs EIS and the other lane a different (dissimilar) algorithm). On the basis of state and health observation, state (state of function) of the battery system can be predicted to determine a range of flight in accordance with a predetermined flight profile.
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