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Method and system for detecting proximity of an end device to a vehicle based on signal strength information received over a bluetooth low energy (BLE) advertising channel

A terminal device and vehicle technology, applied in the field of vehicles, can solve the problem of the driver losing the remote key

Active Publication Date: 2014-07-02
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a driver may lose their key fob, or inadvertently lock it in their vehicle

Method used

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  • Method and system for detecting proximity of an end device to a vehicle based on signal strength information received over a bluetooth low energy (BLE) advertising channel
  • Method and system for detecting proximity of an end device to a vehicle based on signal strength information received over a bluetooth low energy (BLE) advertising channel
  • Method and system for detecting proximity of an end device to a vehicle based on signal strength information received over a bluetooth low energy (BLE) advertising channel

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Embodiment Construction

[0099] The following detailed description is merely exemplary in nature and not intended to limit the application and use. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description.

[0100] Figure 1A A system 100 including a vehicle 110 and an end device 170 is shown in accordance with the disclosed embodiments.

[0101] The end device 170 is a Bluetooth enabled device. The terminal device 170 includes a Bluetooth antenna 172 and a Bluetooth chipset 175 and is capable of executing any known Bluetooth standards and protocols including the Bluetooth Low Energy (BLE) protocol. The Bluetooth specification is developed and published by the Bluetooth Special Interest Group (SIG). Bluetooth Core Specification Version 4.0 approved on June 30, 2010, Core Specification Supplement (CSS) v1 approved on December 27, 2011, Core Specification Addendum (CSA) ...

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Abstract

A passive entry passive start (PEPS) system is provided for performing at least one PEPS function with respect to a vehicle as an end device (e.g., smart phone or key fob, etc.) approaches the vehicle and comes within range for authorization. The vehicle includes a plurality of sensors and a central module. The central module is communicatively coupled to the end device and to the sensors via short-range wireless connections. The central module can determine, based on signal strength information provided from the sensors or the end device, whether the end device is within range for authorization. When the end device is determined to be within range for authorization, the central module can control performance of at least one PEPS function at the vehicle.

Description

technical field [0001] The technical field relates generally to vehicles, and more particularly to passive entry passive start (PEPS) systems and detecting proximity of an end device to a vehicle. Background technique [0002] Passive Entry A passive start system allows the driver or anyone with an authorized key fob to unlock the doors as they approach the vehicle without touching the fob. Once the remote key is within range of the vehicle, eg 1 m, the locked door can be opened by pulling the door handle. Additionally, some PEPS systems may be configured to automatically start the vehicle's engine when an authorized fob is in proximity to the vehicle. Other PEPS systems require the driver to push an ignition button to start and / or stop the vehicle's engine. [0003] PEPS systems typically require multiple low frequency (LF) (eg, 125 kHz) transmit antennas on the interior and exterior of the vehicle. An external antenna may be positioned in the door handle. In one type o...

Claims

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Application Information

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IPC IPC(8): H04B17/00B60R25/20
CPCB60W2600/00B60W10/30B60W50/00B60W10/08B60R25/24G07C9/00309G07C9/00658G07C2209/63G07C2209/64B60C23/0408B60C23/0416B60C23/0437B60W2556/00
Inventor N.R.高塔马A.J.卡尔霍斯R.A.赫拉巴克N.J.维格特
Owner GM GLOBAL TECH OPERATIONS LLC
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