Method and apparatus for locating a battery module among multiple battery modules of a traction battery that are electrically connected to one another
First Claim
1. A method for locating a battery module among multiple battery modules of a traction battery that are electrically connected to one another, said method comprising:
- measuring an electrical potential at each of the battery modules in real time relative to a potential reference that is common to the battery modules,subtractively computing potentials between the battery modules using the measured electrical potentials,deriving a positional relationship for the battery modules from the subtractively computed potentials,retrieving a voltage dropped across the battery module that is to be located using a module controller that is univocally denoted within the traction battery, andlocating the battery module on the basis of the positional relationship within the traction battery using the retrieved voltage and the substractively computed potentials.
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Abstract
A method for locating a battery module among multiple battery modules of a traction battery that are electrically connected to one another, having the following features: an electrical potential is measured at each of the battery modules in real time relative to a potential reference that is common to the battery modules; the potentials are used to subtractively compute voltages between the battery modules; a positional relationship for the battery modules is derived from the voltages; a module controller that is univocally denoted within the traction battery is used to retrieve a voltage dropped across the battery module that is to be located; and the retrieved voltage and the computed voltages are used to locate the battery module on the basis of the positional relationship within the traction battery. Also described is a corresponding apparatus, a corresponding computer program and a corresponding storage medium.
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Citations
10 Claims
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1. A method for locating a battery module among multiple battery modules of a traction battery that are electrically connected to one another, said method comprising:
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measuring an electrical potential at each of the battery modules in real time relative to a potential reference that is common to the battery modules, subtractively computing potentials between the battery modules using the measured electrical potentials, deriving a positional relationship for the battery modules from the subtractively computed potentials, retrieving a voltage dropped across the battery module that is to be located using a module controller that is univocally denoted within the traction battery, and locating the battery module on the basis of the positional relationship within the traction battery using the retrieved voltage and the substractively computed potentials. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for locating a battery module among multiple battery modules of a traction battery that are electrically connected to one another, said apparatus comprising:
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means for measuring an electrical potential at each of the battery modules relative to a potential reference that is common to the multiple battery modules, means for subtractively computing potentials between the battery modules from the measured electrical potentials, means for deriving a positional relationship for the battery modules from the subtractively computed potentials, means for retrieving a voltage dropped across a battery module that is to be located among the battery modules using a module controller that is univocally denoted within the traction battery, and means for locating the battery module on the basis of the positional relationship within the traction battery using the retrieved voltage and the subtractively computed potentials.
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Specification