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Method and apparatus for detecting objects in ambient environment of vehicle

A surrounding environment and vehicle technology, applied to the field of objects in the surrounding environment of the vehicle, can solve problems such as unreliable detection and achieve the effect of reducing costs

Inactive Publication Date: 2013-01-30
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of such ambient detection based solely on external sound in road traffic can be very unreliable, since the driving situation and (therefore) the presence of external sound in the surrounding environment in which to drive is unpredictable

Method used

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  • Method and apparatus for detecting objects in ambient environment of vehicle
  • Method and apparatus for detecting objects in ambient environment of vehicle

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Embodiment Construction

[0050] in figure 1 A cross-sectional view of a sensor 20 for monitoring the surrounding environment of an acoustic vehicle used in a device (not shown) according to the present invention is shown in FIG.

[0051] According to the invention, such a sensor 20 is constructed in a robust manner, in particular with respect to the direct coupling of the function-dependent inherent sound of the vehicle (not shown).

[0052] The sensor 20 includes an electroacoustic transducer 10. figure 1 The electro-acoustic transducer 10 in the includes a diaphragm 11 and a cable 12 connected to the electro-acoustic transducer. The diaphragm 11 is a real transducer surface.

[0053] Alternatively, the electroacoustic converter can be implemented as a purely passive component, but alternatively it can also include an amplifier as an active component.

[0054] The electroacoustic transducer 10 is surrounded by a mass core housing 14 in the sensor 20. Preferably, the electroacoustic transducer 10 is held ther...

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Abstract

According to the invention, a method is provided for detecting objects from the vehicle environment of a vehicle, in which a plurality of signals, in particular electrical signals, suitable for signal processing, and which are generated from acoustic signals, are analysed relative to comparable features and, in the event of a potential collision of the vehicle with a detected object, a warning is emitted to the driver and / or the vehicle dynamics are actively acted upon and / or functions for reducing or avoiding a severe accident are activated. In the method according to the invention, for detecting at least one first object from the vehicle environment, acoustic signals are used from the vehicle environment, said signals impinging on the vehicle from at least one first predefined direction and comprising intrinsic noise generated by the vehicle, depending on the function, and / or external noise from the vehicle environment.

Description

Technical field [0001] The invention relates to a method and a device for detecting objects in the surrounding environment of a vehicle. The invention also relates to a vehicle assistance system with a device according to the invention. Background technique [0002] For the detection of the acoustic surroundings of the vehicle, the ultrasonic system that performs measurement in pulses is usually used at present, in which a short signal pulse of 0.3ms is transmitted, and the object is determined according to the propagation time of the reflection of the pulse on the object in the surrounding environment and the speed of sound the distance. [0003] For acoustic ambient monitoring, the ultrasonic frequency range is used, because usually the intensity of interference noise in the surrounding environment decreases as the frequency increases. However, since the spatial attenuation increases with the increase of the signal frequency, the lower region of the ultrasonic frequency band of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/93B60Q9/00
CPCG01S11/14G01S7/521G08G1/166G01S5/18G08G1/163
Inventor M·卡尔
Owner ROBERT BOSCH GMBH
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