Unlock instant, AI-driven research and patent intelligence for your innovation.

Tire condition detecting system and method

A state detection and tire technology, applied in tire measurement, signal transmission system, measurement device, etc., can solve the problem of battery-free tire pressure detection system not saving battery consumption, etc.

Inactive Publication Date: 2009-09-09
DENSO CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The transmission between the transmitter and receiver is frequent because the batteryless tire pressure detection system does not save battery drain and requires frequent transmissions to control the vehicle according to the detected tire pressure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tire condition detecting system and method
  • Tire condition detecting system and method
  • Tire condition detecting system and method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0021] Such as figure 1 As shown, a tire air pressure detection system is installed in a vehicle 1 as an example of a tire state detection system, and has a transmitter 2 , a receiver 3 and a warning unit 4 .

[0022] The transmitter 2 is installed in the wheels 5 a - 5 d of the vehicle 1 . Each emitter 2 is attached to an air injection valve in the disc of the corresponding wheel 5a-5d. The transmitter 2 detects the pneumatic pressure of the tires corresponding to the wheels 5a-5d, puts the detection parameters representing the measured pressure into a response frame, and transmits the response frame. The receiver 3 is installed in the chassis 6 of the vehicle 1 , and transmits electric waves for charging (hereinafter referred to as charging waves) to the transmitter 2 . Also, the receiver 3 receives the response frame from the transmitter 2, and performs various processes and calculations using the detected parameters in the response frame to obtain the tire air pressure. ...

no. 2 example

[0068] This second embodiment differs from the first embodiment in that a process for acquiring transmission priority is performed in addition to the process in the first embodiment.

[0069] Figure 7 A flow chart of the process executed by the controller of the second embodiment to obtain the priority is shown. When the receiver 3 fails to receive a response frame within the second predetermined period, the controller 32b performs these processes through a timer interrupt. The second predetermined period is set to a period not much longer so as to effectively serve as an interval between subsequent tire pressure detections. Therefore, if image 3 The basic process shown in is performed on a normal basis, then these processes are additional to the basic process. For example, the second predetermined period is ten times the time interval between the transmission moments of the initial tire pressure detection system.

[0070] Such as Figure 7As shown, in this additional p...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A vehicle tire state detection system has a transmitter (2) and a receiver (3). The transmitters are mounted in wheels (5a-5d) and the receivers are mounted in the chassis of the vehicle (1). The receiver (3) has a controller (32b) that determines the transmission timing at which the transmission / reception unit (32a) transmits electric waves for charging to the transmitter (2). And the controller (32b) detects electric waves from nearby vehicles at the moment of transmission. If the detection wave from nearby vehicles is strong, wait for a predetermined period of time before causing the transmitting / receiving unit (32a) to transmit electric waves.

Description

technical field [0001] The present invention relates to a vehicle tire condition detection system and method which has a transmitter and a receiver and detects the condition of a vehicle tire such as tire pressure, wherein the transmitter is directly installed in a wheel with the tire. The transmitter may include a sensing unit and transmit a detection signal output by the sensing unit. The receiver is installed in the chassis of the vehicle and receives the detection signal from the transmitter. Background technique [0002] Among conventional tire pressure detection systems, there is a direct type tire pressure detection system having a transmitter installed in a wheel with a tire and having a sensing unit such as a pressure sensor. The detector also has a receiver with antenna and is mounted in the vehicle chassis. When the transmitter emits radio waves including detection signals received from the sensing unit, the receiver receives the radio waves with an antenna. Th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01L17/00B60C23/00B60C23/02B60C23/04B60C23/20G08C17/00G08C17/02
CPCB60C23/0413B60C23/0408B60C23/0466
Inventor 渡部宣哉
Owner DENSO CORP