Tire air pressure detection system, vehicle-side device, and tire-side device

A body side device, air pressure technology, applied in tire measurement, tire parts, signal transmission system, etc., can solve problems such as response signal crosstalk

Inactive Publication Date: 2019-07-19
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the LF signal sent from the transmitter at this time is received by a tire detection device other than the corresponding detection device, crosstalk occurs in which the response signal from the tire detection device is not clear, causing problems.

Method used

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  • Tire air pressure detection system, vehicle-side device, and tire-side device
  • Tire air pressure detection system, vehicle-side device, and tire-side device
  • Tire air pressure detection system, vehicle-side device, and tire-side device

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Embodiment Construction

[0023] [Description of Embodiments of the Present Invention]

[0024] First, embodiments of the present disclosure will be described. In addition, at least a part of the embodiments described below may be combined arbitrarily.

[0025] (1) One aspect of the present disclosure relates to a tire air pressure detection system including: a tire side device, which is respectively installed on a plurality of tires mounted on a vehicle, has a sensor for detecting the air pressure of the tire, and receives and transmits a request wirelessly. The tire-side receiving unit for the signal of the measurement result obtained by the sensor and the tire-side transmitting unit for wirelessly transmitting the measurement result according to the request; The vehicle body and the vehicle body side transmitting unit and the vehicle body side receiving unit wirelessly transmit and receive signals with the tire side device, and the body side device obtains the air pressure of each tire and detects ...

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Abstract

This tire-side device comprises: a first storage unit that stores an identifier for identifying the tire-side device; a reception intensity measurement unit that measures the reception intensity of each measurement signal; an identification unit that identifies the number of measurement signals which have been received; and a second storage unit that stores the number of measurement signals, whichhave been received among the measurement signals corresponding to a plurality of tires as sequentially sent to the tire-side devices from a vehicle-side device, and the reception order in which the measurement signal having the strongest reception intensity among the received measurement signals was received. A reply signal, containing information showing the number of the measurement signals andthe reception order stored in the second storage unit and the identifier, is sent to the vehicle-side device, and a response is determined by the vehicle-side device on the basis of the comparison ofinformation showing the number of the measurement signals and the reception order sent from the plurality of tire-side devices.

Description

technical field [0001] The present disclosure relates to a tire air pressure detection system. Background technique [0002] Use a tire air pressure warning system (TPMS: Tire Pressure Monitoring System, Tire Pressure Monitoring System) that detects the air pressure of multiple tires equipped on the vehicle and issues a warning when the detected air pressure is abnormal. . Patent Document 1 discloses a tire air pressure warning system, including: a detection device, including a sensor provided on each tire; a monitoring device on the vehicle body side, which receives a detection signal from the detection device; and a transmission device (LF antenna), which is set In the vicinity of each tire, an LF (Low Frequency, low frequency) signal is sent to the detection device. In the TPMS with such a structure, the LF signals are sequentially sent from each transmitting device to the corresponding detection device, and the detection device that receives the LF signal responds to t...

Claims

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Application Information

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IPC IPC(8): B60C23/02B60C23/04G08C17/00G08C17/02
CPCB60C23/0416B60C23/044B60C23/045G08C17/00G08C17/02B60C23/0455
Inventor 李奇英
Owner AUTONETWORKS TECH LTD
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