Operating method for a data bus for several users with flexible timed access
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsMartin Peller, Josef Berwanger
Life of this patent
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Abstract
The invention relates to an operating method for a data bus for several parties with flexible, timed access. According to the method, the parties are synchronized, the bus messages are sent from the parties in a hierarchical sequence and are sent at least in part, only if necessary. A logic element is provided between the parties and the data bus which only gives bus access to each party when said party is allowed to send and for the duration of the send operation.
Claims6
An operating method for a data bus having several users, the data bus having a flexible, timed access, the method comprising the acts of:
- synchronizing the several users on the data bus;
- sending bus messages in a hierarchical transmission sequence by the several users and at least partially only as required;
- and
- releasing a bus access for a respective user only when and as long as the respective user is permitted to transmit via a switching element situated between the users and the data bus.
Dependencies are inferred from the claim text.