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Vehicle height sensor based on ultrasonic range finding in airbag

A technology of height sensor and temperature and humidity sensor, which is applied in the direction of sound wave re-radiation, radio wave measurement system, instrument, etc., can solve the problems of restricting the measurement accuracy of height sensor, complicated manufacturing process, and complicated electromagnetic environment, so as to save labor and time The effect of cost, small size and high integration

Pending Publication Date: 2019-08-20
RUILI GROUP RUIAN AUTO PARTS CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the harsh environment under the vehicle and the complex electromagnetic environment when the car is running, the service life, stability and reliability of the height sensor made by the above principles face certain challenges.
At present, in order to ensure sufficient relevant performance of the above-mentioned existing height sensors, the manufacturing process is relatively complicated and the cost is relatively high
In addition, its attached complex linkage mechanical mechanism has a loss ratio in the mechanical transmission process, which introduces additional measurement errors and restricts the measurement accuracy of the height sensor

Method used

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  • Vehicle height sensor based on ultrasonic range finding in airbag
  • Vehicle height sensor based on ultrasonic range finding in airbag
  • Vehicle height sensor based on ultrasonic range finding in airbag

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Embodiment Construction

[0036] The following specific examples illustrate the implementation of the present invention. Those who are familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0037] see Figure 1 to Figure 3 . It should be noted that the structure, proportion, size, etc. of the accompanying drawings in the present invention are only used to cooperate with the content shown in the specification for the understanding and reading of those familiar with this technology, and are not limiting conditions for the implementation of the present invention, so they do not have substantial In terms of technical meaning, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the technical content of the present invention without affecting the essential effects and essential functions that the present invention can produce. within the scope co...

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Abstract

The invention discloses a vehicle height sensor based on ultrasonic range finding in an airbag. The sensor comprises a sensor main body and a reflection plate. The sensor main body is connected to anair intake channel of an ECAS system airbag. The sensor main body comprises an ultrasonic probe. The reflection plate is installed on an inner bottom surface of the airbag and is located right below the ultrasonic probe. By using the height sensor, an absolute height of the airbag is measured in an ultrasound mode to represent a vehicle frame height, a measurement process takes place in an internal space of the enclosed airbag, and the sensor has characteristics of high measurement precision, a long service life, good reliability and the like. Simultaneously, the structure of the height sensoris simple, a calibration link is not needed during an assembling process, and high assembling efficiency and maintainability are achieved.

Description

technical field [0001] The invention relates to the technical field of automobile electronics, in particular to an automobile height sensor based on ultrasonic ranging in an airbag. Background technique [0002] In recent years, with the rapid development of the automotive electronics industry, the automotive electronic control system has become an indispensable part of the car. As the information source of the automotive electronic control system, the automotive sensor can measure the external physical quantities such as temperature, pressure, position, height, acceleration, etc. in real time and accurately. Its performance has become a key factor to measure the level of the automotive electronic control system. Compared with modern small passenger vehicles, commercial vehicles have larger loads and higher operating intensity, but the development level of their automotive electronic control systems is relatively backward. In particular, the development status of commercial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/08G01L7/00G01D21/02
CPCG01S15/08G01L7/00G01D21/02
Inventor 陈亮池华张传敏陈积明贺诗波
Owner RUILI GROUP RUIAN AUTO PARTS CO LTD
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