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Vehicle panel and method for integrating an ultrasonic transducer into a vehicle panel

An ultrasonic and vehicle technology, applied in the re-radiation of sound waves, sounding equipment, vehicle parts, etc., can solve the problems of no longer being identified, the transmission time of the transmitted signal is limited by the short-range measurability, etc., to achieve the effect of flexible fixation

Inactive Publication Date: 2016-12-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, the arrangement of the sensors on the vehicle surface limits the measurability at short distances due to the non-negligible propagation time of the usual transmitted signals
Therefore most objects that are closer than 20cm to the sensor can no longer be recognized

Method used

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  • Vehicle panel and method for integrating an ultrasonic transducer into a vehicle panel
  • Vehicle panel and method for integrating an ultrasonic transducer into a vehicle panel
  • Vehicle panel and method for integrating an ultrasonic transducer into a vehicle panel

Examples

Experimental program
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Embodiment Construction

[0032] in figure 1 Shown in is a vehicle panel, which is composed of two different vehicle panel elements 10, 12, which are separated from each other by a gap 14. An ultrasonic sensor element 20 is provided in the gap 14, which emits ultrasonic waves through the gap 14 between the vehicle panel elements 10 and 12, as shown by a solid arrow. Here, the ultrasonic sensor element 20 is fixed in the cavity 30 formed by the inner panel element 40. An alternative arrangement is shown in dashed lines, in which the ultrasonic sensor element 20' is further retracted inwardly and fixed inside the cavity 30. In particular, the ultrasonic sensor element 20 can also be fixed directly on the bottom section 42 of the inner panel element 40. According to the beam path shown in dashed lines, it can be seen that the intermediate beam passes through the gap between the vehicle panel elements 10, 12 unobstructed, wherein a part of the ultrasonic energy (see arrow direction 50, 50') does not direct...

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Abstract

The invention relates to vehicle trim having an ultrasound sensor assembly. The ultrasound sensor assembly comprises at least one ultrasound sensor element (20), which is provided in a cutout or an outwardly open cavity (30) in the vehicle trim. The cutout (30) or the outwardly open cavity (30) is formed by at least one vehicle trim element (10, 12), the outer face of which is not interrupted in order to receive the ultrasound sensor element (20). The invention further relates to a method for integrating ultrasound sensors in vehicle trim. At least one ultrasound sensor element (20) of an ultrasound sensor assembly is fixed to the vehicle trim. The ultrasound sensor element (20) is fixed in a cutout (30) or in an outwardly open cavity (30) in the vehicle trim, wherein the cutout (30) or the outwardly open cavity (30) in which the ultrasound sensor element (20) is fixed is formed by at least one vehicle trim element (10, 12), the outer face of which is not interrupted to receive the ultrasound sensor element (20). The invention finally relates to methods for the protected emission and reception of ultrasound waves.

Description

Background technique [0001] The use of sensors for recognizing objects (e.g. for estimating distances) is popular in vehicle technology. Here the sensor is placed on the outside of the vehicle, it outputs waves and detects objects in the surrounding environment based on the reflected waves. Particularly suitable as sensors are microwave sensors that emit and receive microwave pulses and ultrasonic sensors that emit and receive ultrasonic beams, and it can estimate distance based on propagation time and other criteria. [0002] Ultrasonic sensors dominate the market in vehicle technology, and they are embedded in the outer surface of the vehicle. These sensors are usually fixed in the outer surface of the bumper or fixed in the corresponding decorative strip, the way is that they are embedded in the surface or fixed in the bumper or the decorative strip through the middle piece or the rear wall fixing device. [0003] On the one hand, this fixing requires additional steps, through ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R11/00
CPCB60R11/00B60Q1/0023B60R19/483B60R2001/1223G01S7/521G01S2015/937G01S2015/938G10K9/22G10K11/26
Inventor M·卡尔
Owner ROBERT BOSCH GMBH