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US 2017/0249268 A1Published application
Time and event based message transmission
AssigneeCallahan Cellular L.L.C.
InventorLars-Berno Fredriksson
Life of this patent
Estimating the term…
Abstract
A system, apparatus and method for efficient utilization of available band-width on the system's bus connection. The system includes a scheduler configured to receive a virtual schedule that provides at least one slot for sending a message over the communication bus. A module is configured to send a message over the communication bus.
Claims21
1-20. (canceled)
An automotive vehicle system, comprising:
- an electronic communication bus that operates according to a controller area network (CAN) protocol;
- a plurality of modules communicatively connected to the electronic communication bus;
- at least one of the plurality of modules comprising:
- at least one actual clock;
- a scheduler coupled to the at least one actual clock, wherein the scheduler receives a virtual schedule comprising a time slot for sending a message to the electronic communication bus, and determines an actual time for sending a message in relation to the virtual schedule and according to time kept in the at least one actual clock;
- wherein at least one of the plurality of modules sends a message according to the actual time, wherein the at least one of the plurality of modules starts transmission of the message according to the actual time such that the message begins within an adjacent time slot on the electronic communication bus;
- and
- wherein the at least one of the plurality of modules resends the message after receiving the end of a colliding message.
5 more elements
An automotive vehicle apparatus comprising:
- a scheduler that receives a virtual schedule,
- wherein the virtual schedule includes a time slot for sending a message to an electronic communication bus that operates according to a controller area network (CAN) protocol, and
- wherein the scheduler is configured to determine an actual time for sending the message in relation to the virtual schedule and according to time kept in at least one actual clock;
- and
- a transmitter that:
- sends the message according to the actual time,
- transmits the message outside of the time slot, and
- resends the message after receiving an end of a colliding message.
5 more elements
A method implemented in an automotive vehicle, comprising:
- determining, using a communication module, an actual time according to time kept in at least one actual clock for sending a message based on a virtual schedule,
- wherein the virtual schedule includes a time slot for sending a message to an electronic communication bus that operates according to a controller area network (CAN) protocol;
- and
- transmitting the message from the communication module to the electronic communication bus according to the actual time,
- wherein the transmitting begins outside the time slot for sending the message.
2 more elements
An automotive vehicle apparatus, comprising:
- means for determining an actual time according to time kept in at least one actual clock for sending a message based on a virtual schedule wherein the virtual schedule includes a time slot for sending a message to an electronic communication bus that operates according to a controller area network (CAN) protocol;
- and
- means for transmitting the message to the electronic communication bus at the actual time, wherein the transmitting begins outside the time slot for sending the message.
Dependencies are inferred from the claim text.