Redundant parallel operation of motor vehicle electrical system generators
AssigneeRobert Bosch GmbH
InventorThomas Peuser
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Abstract
In a method for controlling a group of at least two electrical generators which supply a motor vehicle electrical system, each individual generator of the group provides a generator workload value, which indicates a workload of the individual generator, to each other one of the group of generators. The workload values represent an absolute value which indicates an actual power which is generated by the individual generator. Alternatively, the workload values represent a relative value, which indicates a ratio of the actual power to a nominal power of the individual generator.
Claims19
A method for controlling a group of at least two electrical generators configured to supply power to a motor vehicle electrical system, comprising:
- controlling each individual generator of the group to provide a generator workload value indicating the workload of the individual generator to each other one of the group of generators, wherein the generator workload value represents one of (i) an absolute value indicating an actual power generated by the individual generator, or (ii) a relative value indicating a ratio of the actual power generated by the individual generator to a nominal power of the individual generator.
A decentralized control unit configured to activate an associated first individual electrical generator of a motor vehicle electrical system and situated on the associated first individual electrical generator, comprising:
- an input/output interface configured to communicate with an input/output interface of at least one further decentralized control unit;
- a receiving unit configured to receive a generator workload value transmitted via the input/output interface of the at least one further decentralized control unit;
- and
- a transmitting unit configured to transmit a generator workload value indicating the workload of the associated first individual generator to a receiving unit of the at least one further decentralized control unit.
A total power specification unit configured to specify a total power to be generated by a group of electrical generators to supply a motor vehicle electrical system, comprising:
- a common communication network connecting all electrical generators of the group;
- a central memory connected to the common communication network and configured to store a value of the total power to be generated;
- an output terminal connected to one of (i) the central memory via the common communication network to transmit the value of the total power to the central memory of the network, or (ii) the individual electrical generators of the group via the common communication network to transmit the value of the total power to each electrical generator of the group.
Dependencies are inferred from the claim text.