Systems and methods for reducing power consumption in smart key of vehicle

A smart key, power-consuming technology, applied in the field of power-consuming systems

Pending Publication Date: 2021-09-10
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Implementing this action, however, can be challenging because at least a first circuit in the key fob must remain on at all times in order to detect a signal transmitted by the vehicle's computer system at any random moment

Method used

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  • Systems and methods for reducing power consumption in smart key of vehicle
  • Systems and methods for reducing power consumption in smart key of vehicle
  • Systems and methods for reducing power consumption in smart key of vehicle

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Embodiment Construction

[0012] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. However, this disclosure may be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. It will be apparent to those skilled in the relevant art that various changes in form and details can be made in the various embodiments without departing from the spirit and scope of the present disclosure. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the appended claims and their equivalents. The following description is presented for purposes of illustration and is not intended to be exhaustive or to be limited to the precise forms disclosed. It should be noted that the alternative implementations may be used in any desired ...

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PUM

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Abstract

The disclosure is generally directed to systems and methods for reducing power consumption in a smart key of a vehicle. In an exemplary method, an accelerometer in the smart key detects that the smart key is moving. For example, an individual may be carrying the smart key in his/her pocket and walking towards the vehicle. However, an RF transceiver circuit of the smart key may be out of range of a communication system in the vehicle. A processor in the smart key may place some circuits, such as a wakeup receiver, in a power-down condition, based on detecting the moving state of the smart key and a lack of communications between the Bluetooth® transceiver circuit and the communication system of the vehicle. The wakeup receiver typically has a smaller operating range than the RF transceiver circuit and is therefore unnecessary when the smart key is far from the vehicle.

Description

technical field [0001] The present disclosure relates generally to operations associated with vehicles, and more particularly to systems for reducing power consumption in a vehicle's key fob. Background technique [0002] Power consumption is often a major concern in battery powered devices, such as key fobs, which are used to perform various operations on the vehicle. For example, a smart key can be used to unlock or lock the doors of a vehicle without pressing any buttons on the smart key. The smart key can also be carried in the driver's pocket and used to start the vehicle's engine without inserting a traditional key into the ignition lock. As part of this starting procedure, a first circuit provided in the key fob detects a signal transmitted by the vehicle's computer system. A second circuit in the fob then communicates with the vehicle's computer system to allow the computer system to perform operations such as authentication of the fob and activation of the vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
CPCG07C9/00309B60R25/24B60R25/406B60R25/245B60R2325/205B60R2325/105B60R2325/101B60R25/209
Inventor 维维卡纳德·埃兰戈维安亚伦·德朗约翰·罗伯特·范维梅尔施
Owner FORD GLOBAL TECH LLC
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