Monitoring IC Chip for Battery Management Unit
AssigneesRobert Bosch GmbH, Samsung SDI Co., Ltd.
InventorStefan Butzmann
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Abstract
A monitoring IC chip is designed to detect at least one operating variable from at least one battery cell or from a battery module, which comprises a predetermined number of battery cells, and which can be connected, together with a multiplicity of monitoring IC chips of the same type, to a first bus in a daisy-chain topology such that successive monitoring IC chips in the daisy-chain topology are situated in a rising voltage chain, wherein one of the monitoring IC chips connected to the first bus can be used as a base monitoring IC chip which is designed to use a second bus to communicate with a controller. The monitoring IC chip can be used as the base monitoring IC chip either at a lower end or at an upper end of the voltage chain on the basis of a configuration or an interconnection.
Claims13
A monitoring IC chip configured to detect at least one operating variable of at least one battery cell or one battery module having a predetermined number of battery cells, the monitoring IC chip being configured to be connected, together with a plurality of similar monitoring IC chips, to a first bus in a daisy-chain topology such that successive monitoring IC chips in the daisy-chain topology are located in a rising voltage chain, wherein:
- the monitoring IC chip is a base monitoring IC chip configured to communicate with a controller via a second bus, and
- the base monitoring IC chip is optionally positioned at one of a lower end and an upper end of the voltage chain in dependence on a configuration or an interconnection.
A battery management unit comprising:
- a plurality of monitoring IC chips connected together in a daisy-chain topology such that successive monitoring IC chips of the plurality of monitoring IC chips in the daisy-chain topology are located in a rising voltage chain, wherein:
- each of the plurality of monitoring IC chips is connected to a first bus, and
- one of the plurality of monitoring IC chips is a base monitoring IC chip which is also connected to the first bus and is configured to communicate with a controller via a second bus.
A battery comprising:
- a multiplicity of series-connected battery cells or battery modules each having a predetermined number of battery cells;
- and
- a battery management unit having a plurality of monitoring IC chips configured to be connected together in a daisy-chain topology such that successive monitoring IC chips of the plurality of monitoring IC chips in the daisy-chain topology are located in a rising voltage chain, wherein:
- each of the plurality of monitoring IC chips is configured to detect a voltage in one of the multiplicity of battery cells or battery modules,
- each of the plurality of monitoring IC chips is connected to a first bus, and
- one of the plurality of monitoring IC chips is a base monitoring IC chip which is also connected to the first bus and is configured to communicate with a controller via a second bus.
Dependencies are inferred from the claim text.