Methods and apparatus to facilitate TPMS broadcast mode selection
AssigneeFord Global Technologies, LLC
InventorsJohn Robert Van Wiemeersch, Ali Hassani, Dilip B. Patel
Life of this patent
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Abstract
Method and apparatus are disclosed to facilitate TPMS broadcast mode selection. An example vehicle comprises sensors, a processor, and memory. The processor is in communication with the memory and with the sensors. The processor is configured to: receive an unencrypted signal indicating an abnormal tire pressure, enter an encrypted mode with the sensors, receive an encrypted follow up tire pressure status from the sensors, and determine whether the unencrypted signal is authentic based on the encrypted follow up tire pressure status.
Claims20
A vehicle tire pressure monitoring system comprising:
- sensors;
- and
- a processor and memory in communication with the sensors and configured to:
- receive an unencrypted signal indicating an abnormal tire pressure data;
- enter an encrypted mode with the sensors;
- receive an encrypted follow up tire pressure data status from the sensors;
- and
- determine whether the unencrypted signal is authentic based on the encrypted follow up tire pressure data status.
A method of a vehicle tire pressure monitoring system comprising:
- receiving, with a processor, an unencrypted signal indicating an abnormal tire pressure data;
- entering, with the processor, an encrypted mode with sensors;
- receiving, with the processor, an encrypted follow up tire pressure data status from the sensors;
- and
- determining, with the processor, whether the unencrypted signal is authentic based on the encrypted follow up tire pressure data status.
A vehicle tire pressure monitoring system comprising:
- sensors disposed in wheel and tire assemblies of the vehicle;
- and
- a processor in communication with the sensors and configured to:
- receive an unencrypted signal including first tire pressure data;
- selectively enter an encrypted communication mode with the sensors based on the first tire pressure data;
- transmit an encrypted request to the sensors for second tire pressure data;
- receive an encrypted signal from the sensors including the second tire pressure data;
- and
- authenticate the unencrypted signal based on the first tire pressure data and the second tire pressure data.
Dependencies are inferred from the claim text.