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Wireless portable device for vehicle

A portable device and wireless technology, applied in anti-theft vehicle accessories, vehicle parts, radio wave measurement system, etc., can solve the problems of lack of accuracy, abnormal PEPS system and remote parking

Active Publication Date: 2021-02-02
VALEO COMFORT & DRIVING ASSISTANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Inherently, for the frequency ranges used by the BluetoothTM communication system, RSSI measurements may lack precision, causing PEPS systems to perform improperly or remote parking functions to operate in violation of applicable regulations

Method used

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  • Wireless portable device for vehicle
  • Wireless portable device for vehicle
  • Wireless portable device for vehicle

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Embodiment Construction

[0035] In the following description, well-known functions or constructions by those skilled in the art are not described in detail since they would obscure the invention with unnecessary detail.

[0036] The present invention relates, according to non-limiting examples, to figure 1 and 2 A wireless portable device 1 of a vehicle 2 is shown in . In a non-limiting embodiment, said vehicle 2 is an automobile vehicle. In non-limiting examples, the automotive vehicle is a motor vehicle or an electric vehicle or a hybrid vehicle. Said vehicle 2 comprises:

[0037] - at least one low frequency transceiver 21, also called LF transceiver 21,

[0038] - at least one low frequency antenna 22, also called LF antenna 22,

[0039] - at least one Bluetooth Low Energy TM transceiver 23, also known as BLE transceiver 23,

[0040] - a central processing unit 24 .

[0041] In a non-limiting embodiment, the vehicle 2 also comprises a wireless base station 20 for the wireless portable devic...

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PUM

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Abstract

The invention relates to a wireless portable device (1) for a vehicle, comprising a received strength signal indication measurement circuit (10) for positioning the wireless portable device (1) relative to the vehicle, wherein the received strength signal indication measurement circuit (10) is a wireless charging receiver circuit (11) configured to be in a wireless charging mode (M1) and charge wirelessly charges a battery (12); The device comprises at least two low-frequency antennas (11x, 11y) aligned along two axes X and Y, and configured to receive a plurality of low-frequency signals (2x,2y) from the vehicle; The low-frequency antennas are configured to be in a ranging mode (M2). When the wireless charging mode (M1) is activated, received strength signal indication measurement (RSSI)is performed on the received low-frequency signals (2x, 2y) and used for a short-range location.

Description

technical field [0001] The present invention relates to a wireless portable device for a vehicle. Such wireless portable devices may be used in, but are not limited to, motor vehicles. Background technique [0002] It is well known to those skilled in the art that a wireless portable device for a vehicle, such as a smartphone, is used for passive entry and passive start of said vehicle, referred to as the PEPS function. In order to locate the wireless portable device around the vehicle to perform PEPS related functions, received strength signal indication measurements (also referred to as RSSI measurements) are used to range the wireless portable device around the vehicle. RSSI measurements are performed by a Bluetooth Low Energy™ transceiver embedded in the wireless portable device. [0003] Wireless portable devices such as smartphones known to those skilled in the art for vehicles are also used for the remote parking functionality of said vehicles. In order to comply w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/3822H04B5/00G01S11/06H02J50/00H02J50/20H02J7/00
CPCH04B1/3822G01S11/06H02J50/00H02J50/20H04B5/72G01S5/0258G01S5/0036B60R25/24
Inventor 修罗S.埃特
Owner VALEO COMFORT & DRIVING ASSISTANCE