Scheduling for charger and electric vehicle communication in power line communication system
First Claim
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1. A method comprising:
- performing, by a power line communication (PLC) deviceassigning a first transmission priority to a first category of data messages to be communicated over a narrow-band PLC channel;
assigning a second transmission priority to a charger equipment category of data messages to be communicated over the narrow-band PLC channel, the second transmission priority being higher than the first transmission priority;
communicating a data message of the first category over the narrow-band PLC channel;
halting initiation of further communication of the first category of data messages over the narrow-band PLC channel in response to a determination that at least one data message having the second transmission priority is queued for communication over the narrow-band PLC channel; and
communicating the at least one data message having the second transmission priority in response to the second transmission priority and a determination that the narrow-band PLC channel is available.
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Abstract
Systems and methods for establishing scheduling for charger and electric vehicle communication in a PLC system are described. In an illustrative embodiment, a method performed by a PLC device. In a further embodiment, the PLC device may be configured to operate according to a narrow-band PLC communication protocol. In a further embodiment, the narrow-band PLC communications between PLC devices in the charger and the electric vehicle are conducted over a pilot wire coupling the charger to the electric vehicle. In still a further embodiment, the pilot wire may be one of a standard set of existing wires in a standard cable used for connecting the charger to the electric vehicle.
22 Citations
20 Claims
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1. A method comprising:
performing, by a power line communication (PLC) device assigning a first transmission priority to a first category of data messages to be communicated over a narrow-band PLC channel; assigning a second transmission priority to a charger equipment category of data messages to be communicated over the narrow-band PLC channel, the second transmission priority being higher than the first transmission priority; communicating a data message of the first category over the narrow-band PLC channel; halting initiation of further communication of the first category of data messages over the narrow-band PLC channel in response to a determination that at least one data message having the second transmission priority is queued for communication over the narrow-band PLC channel; and communicating the at least one data message having the second transmission priority in response to the second transmission priority and a determination that the narrow-band PLC channel is available. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power line communication (PLC) device, comprising:
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a processor; and a memory coupled to the processor, the memory configured to store program instructions executable by the processor to cause the PLC device to; assign a first transmission priority to a first category of data messages to be communicated over a narrow-band PLC channel; assign a second transmission priority to a charger equipment category of data messages to be communicated over the narrow-band PLC channel, the second transmission priority being higher than the first transmission priority; communicate a data message of the first category over the narrow-band PLC channel; halt initiation of further communication of the first category of data messages over the narrow-band PLC channel in response to a determination that at least one data message having the second transmission priority is queued for communication over the narrow-band PLC channel; and communicate the at least one data message having the second transmission priority in response to the second transmission priority and a determination that the narrow-band PLC channel is available. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory electronic storage medium having program instructions stored thereon that, upon execution by a processor within a power line communication (PLC) device, cause the PLC device to:
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assign a first transmission priority to a first category of data messages to be communicated over a narrow-band PLC channel; assign a second transmission priority to a charger equipment category of data messages to be communicated over the narrow-band PLC channel, the second transmission priority being higher than the first transmission priority; communicate a data message of the first category over the narrow-band PLC channel; halt initiation of further communication of the first category of data messages over the narrow-band PLC channel in response to a determination that at least one data message having the second transmission priority is queued for communication over the narrow-band PLC channel; and communicate the at least one data message having the second transmission priority in response to the second transmission priority and a determination that the narrow-band PLC channel is available.
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Specification