Wheel position detection apparatus, and tire air pressure detection apparatus having same

A detection device, wheel technology, applied in tire measurement, measurement device, wheel test and other directions, can solve the problem of longer wheel position detection and other problems

Active Publication Date: 2015-04-22
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, if a wider range is set in combination with rough road surfaces, the time for detecting the wheel position on flat road surfaces may become longer

Method used

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  • Wheel position detection apparatus, and tire air pressure detection apparatus having same
  • Wheel position detection apparatus, and tire air pressure detection apparatus having same
  • Wheel position detection apparatus, and tire air pressure detection apparatus having same

Examples

Experimental program
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no. 1 Embodiment approach

[0042] A first embodiment of the present disclosure will be described with reference to the drawings. First, refer to figure 1 , the overall configuration of the tire air pressure detection device to which the wheel position detection device in the first embodiment of the present disclosure is applied will be described. also, figure 1 The top of the paper is consistent with the front of vehicle 1, and the bottom of the paper is consistent with the rear of vehicle 1.

[0043] like figure 1As shown, the tire air pressure detection device is mounted on a vehicle 1 and includes a transmitter 2 , a tire air pressure detection device ECU (Electronic Control Unit) (hereinafter referred to as TPMS-ECU) 3 functioning as a receiver, and a gauge 4 . The wheel position detection device uses the transmitter 2 and the TPMS-ECU 3 included in the tire air pressure detection device, and obtains information corresponding to each wheel 5 ( 5 a to 5 d ) from the brake control ECU (hereinafter ...

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PUM

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Abstract

In a wheel position detection apparatus, a first control unit (23) of a transmitter (2) repeatedly transmits a frame including unique identification information at the timing when the angle of the transmitter (2) is at a predetermined angle. A second control unit (33) of a receiver (3) receives the frame transmitted from the transmitter (2), and identifies which of a plurality of wheels (5a to 5d) the transmitter (2) that has transmitted the frame is attached to. The receiver (3) modifies an allowable variation range in accordance with a road surface condition expressed by the degree of road surface roughness each time the frame is received, and sets the allowable variation range wider for a rough road surface than for a smooth road surface.

Description

[0001] Cross-reference of related applications [0002] This indication is based on the Japanese application number 2012-174138 of an application on August 6, 2012, and uses the description content here. technical field [0003] The present disclosure relates to a wheel position detection device which detects which position of a wheel is mounted on a vehicle, and a tire air pressure detection device including the wheel position detection device. Background technique [0004] Conventionally, as one of the tire air pressure detection devices, there is a direct type tire air pressure detection device. In this type of tire air pressure detection device, a transmitter including a sensor such as a pressure sensor is directly attached to the side of the wheel on which the tire is attached. Also, an antenna and a receiver are provided on the vehicle body side, and when a detection signal from a sensor is transmitted from the transmitter, the receiver receives the detection signal v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C23/04G01L17/00
CPCB60C23/0416B60C23/0488B60C23/0489G01L17/00B60C23/0462G01M17/013G01V7/04
Inventor 森雅士关泽高俊新家多佳朗林义则
Owner DENSO CORP
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