Automobile tire monitoring device based on organic piezoelectric material

A piezoelectric material, automobile tire technology, applied in tire measurement, tire parts, vehicle parts, etc., can solve problems such as failure to meet actual use, requirements, and patents are rarely applied.
CN102069686AInactive Publication Date: 2011-05-25JILIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JILIN UNIV
Publication Date
2011-05-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the field of automotive electronic measurement, and in particular relates to an automobile tire monitoring device based on an organic piezoelectric material. The automobile tire monitoring device consists of a probe in a tire, a circuit part in the tire (slave) and a main control circuit part, wherein, the probe is formed by matching a PVDF (polyvinylidene fluoride) film with a specific support. In the invention, change of the operating distance x in the case of under-pressure of the automobile tire during the running process is converted into pressure and deformation acting on the PVDF film through the probe so as to generate a piezoelectric signal for reflecting the status of the tire; and meanwhile, data correction based on multi-physical quantity is carried out on an induction signal, and then the signal is transmitted in a wireless communication manner, so that the monitoring system can effectively measure and estimate the tire pressure in real time, and can also judge truly dangerous situations of the tire, such as air leakage and under voltage, and give an alarm.
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Description

technical field

[0001] The invention belongs to the field of automobile electronic measurement, and in particular relates to an automobile tire monitoring device based on an organic piezoelectric material. technical background

[0002] Tires are an important part of a car, and their performance will directly affect the driveability, comfort, stability and safety of the car. According to a recent survey by the American Society of Automotive Engineers, 75% of tire failures each year are caused by tire leakage or insufficient inflation; according to statistics from the Ministry of Public Security, 70% of traffic accidents on Chinese highways are caused by tire problems. Therefore, it is the key to solve the above problems to be able to monitor the status of the tires, especially the tire pressure in real time, so that the tires can be found leaking in time when the car is running, so as to maintain the standard tire pressure.

[0003] It can be seen that the research and devel...

Claims

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