DEAD ZONE MITIGATION FOR A PASSIVE ENTRY SYSTEM OF A VEHICLE
First Claim
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1. A vehicle comprising:
- antenna modules to determine signal strengths of communication with a mobile device;
a wireless module to;
when the mobile device is in a dead zone, generate first and second predictors, wherein the first and second predictors are estimated locations of the mobile device within the dead zone, wherein the dead zone is an area within a theoretical communication range of the antenna modules where the wireless module cannot determine the location of the mobile device based on the signal strengths of the communication with the mobile device;
enable passive entry when the first and second predictors match and indicate that the mobile device is in a passive entry zone, and a sensor detects a user; and
a body control module to unlock a door when passive entry is enabled.
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Abstract
Method and apparatus are disclosed for dead zone mitigation for a passive entry system of a vehicle. An example vehicle includes antenna modules to measure signal strengths of broadcasts from a mobile device. The example vehicle also includes a wireless module to, when the mobile device is in a dead zone, generate first and second predictors and enable passive entry when the first and second predictors match and indicate that the mobile device is in a passive entry zone, and a sensor detects a user. The example vehicle also includes a body control module to unlock a door when passive entry is enabled.
8 Citations
21 Claims
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1. A vehicle comprising:
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antenna modules to determine signal strengths of communication with a mobile device; a wireless module to; when the mobile device is in a dead zone, generate first and second predictors, wherein the first and second predictors are estimated locations of the mobile device within the dead zone, wherein the dead zone is an area within a theoretical communication range of the antenna modules where the wireless module cannot determine the location of the mobile device based on the signal strengths of the communication with the mobile device; enable passive entry when the first and second predictors match and indicate that the mobile device is in a passive entry zone, and a sensor detects a user; and a body control module to unlock a door when passive entry is enabled. - View Dependent Claims (4, 5, 6, 7, 9, 10)
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8. (canceled)
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11. A method comprising:
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determining, with antenna modules of a vehicle, signal strength measurements of broadcasts from a mobile device; upon determining that the mobile device is in a dead zone near the vehicle, generating multiple predictors that are estimated locations of the mobile device within the dead zone with a wireless module that includes a processor and memory, wherein the dead zone is an area within a theoretical communication range of the antenna modules where the wireless module cannot determine the location of the mobile device based on the signal strengths measurements of the broadcasts from the mobile device; enabling, with the wireless module, passive entry when the multiple predictors match within a passive entry zone near a door of the vehicle; and unlocking, with a body control module, the door when passive entry is enabled and a sensor detects a user is touching a handle of the door. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A vehicle comprising:
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antenna modules to determine signal strengths of communication with a mobile device; a controller to generate first and second estimated locations of the mobile device upon determining the mobile device is within a dead zone, wherein the dead zone is an area within a theoretical communication range of the antenna modules where the controller cannot determine the location of the mobile device based on the signal strengths of the communication with the mobile device; and a body control module to unlock a door responsive to the controller determining; the first and second estimated locations match within the passive entry zone; and a sensor detects a user in the passive entry zone.
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Specification