KR-102962105-B1 - APPARATUS FOR INSPECTING A VEHICLE AND METHOD THEREOF

KR102962105B1KR 102962105 B1KR102962105 B1KR 102962105B1KR-102962105-B1

Abstract

The present invention relates to a vehicle inspection device and a method thereof. The vehicle inspection device performs a quality inspection method using an acoustic transfer function and may include: a step of setting a microphone sensor at at least one location to extract an acoustic transfer function; a step of performing excitation for a unit acoustic power through an excitation source provided in the vehicle and processing the frequency-specific sound pressure level (SPL) at a location measured through the microphone sensor to extract an acoustic transfer function; and a step of comparing the extracted acoustic transfer function with a reference normal acoustic transfer function to identify a leakage type.

Inventors

안지현

Assignees

현대자동차주식회사
기아 주식회사

Dates

Publication Date: 20260511
Application Date: 20201216

Claims (15)

A step of setting up a microphone sensor at at least one location to extract an acoustic transfer function; A step of performing excitation for unit acoustic power through an excitation source provided in the vehicle, and extracting an acoustic transfer function by processing the frequency-dependent sound pressure (Sound Pressure Level, SPL) at a location measured through the microphone sensor; The method includes a step of comparing the extracted acoustic transfer function with a reference normal acoustic transfer function to identify the leakage type. The step of verifying the above leakage type is, A step of confirming that the frequency-dependent sound pressure at the above-mentioned measured location increases; If the acoustic transfer function extracted through sensing of the microphone sensor is confirmed to increase the sound pressure across all frequencies due to leakage within the trunk, a step of comparing the error between the normal standard trunk SPL and the measured trunk interior SPL; and A quality inspection method using an acoustic transfer function characterized by including a step of determining an abnormal acoustic transfer function according to the type of leakage by accumulating big data on the extracted acoustic transfer function.
In Article 1, The source having the above is a speaker installed in the interior of the assembled vehicle, and A quality inspection method using an acoustic transfer function characterized by verifying the interior acoustic excitation of a vehicle through the above-mentioned speaker, wherein this verifies the vibration characteristics through the above-mentioned speaker.
In claim 1, the step of setting the microphone sensor is, The method involves setting a microphone sensor at at least one location on the assembled vehicle, and The above at least one location includes at least one of a window sealer, a door sealer, a trunk sealer, an engine, and a steering curling connection part, and This is a quality inspection method using an acoustic transfer function characterized by including at least one or more different location information within the same area.
delete
In claim 1, the step of verifying the leakage type is, A quality inspection method using an acoustic transfer function characterized by including a step of determining the abnormal acoustic transfer function by comparing the error between the standard normal SPL and the SPL of the measured position.
In Clause 5, the step of verifying the above leakage type is, A quality inspection method using an acoustic transfer function characterized by including the step of storing data for the above abnormal acoustic transfer function.
In Clause 6, the step of verifying the above leakage type is, The method includes the step of managing data regarding the above abnormal acoustic transfer function in the form of a database, A quality inspection method using an acoustic transfer function characterized by including a step of identifying the corresponding leakage type by considering the above database.
In Clause 7, the step of verifying the above leakage type is, A quality inspection method using an acoustic transfer function, characterized by further including the step of canceling the shipment of the above vehicle and conducting an inspection of the said leakage.
A microphone sensor set at at least one location to extract an acoustic transfer function; It includes a controller that performs excitation for unit acoustic power through an excitation source provided in the vehicle, processes the frequency-dependent sound pressure (Sound Pressure Level, SPL) at a location measured through the microphone sensor to extract an acoustic transfer function, and compares the extracted acoustic transfer function with a reference normal acoustic transfer function to identify a leakage type. The above controller is, Confirming that the frequency-dependent sound pressure at the above-measured location increases, If the acoustic transfer function extracted through sensing by the microphone sensor is confirmed to increase the sound pressure across all frequencies due to leakage within the trunk, the error between the normal standard trunk SPL and the measured trunk interior SPL is compared, and A quality inspection device using an acoustic transfer function characterized by determining an abnormal acoustic transfer function according to the type of leakage through big data accumulation regarding the above-described acoustic transfer function.
In Clause 9, the source having the above is, It is a speaker installed in the interior of the above-mentioned vehicle after assembly is complete, and A quality inspection device using an acoustic transfer function characterized by verifying the interior acoustic excitation of a vehicle through the above-mentioned speaker, wherein this verifies the vibration characteristics through the above-mentioned speaker.
In claim 9, the microphone sensor is, It is set at at least one location of the assembled vehicle, and The above at least one location includes at least one of a window sealer, a door sealer, a trunk sealer, an engine, and a steering curling connection part, and This is a quality inspection device using an acoustic transfer function characterized by further including at least one different location information within the same area.
delete
In Clause 9, the above controller is, A quality inspection device using an acoustic transfer function characterized by comparing the error between the SPL of the above-mentioned standard normal and the SPL of the above-mentioned measured position to determine an abnormal acoustic transfer function.
In Clause 13, the above controller is, It stores data regarding the above abnormal acoustic transfer function, and The data regarding the above abnormal acoustic transfer function is managed in the form of a database, and A quality inspection device using an acoustic transfer function characterized by identifying the corresponding leakage type by considering the above database.
In Clause 14, the above controller is, A quality inspection device using an acoustic transfer function characterized by canceling the shipment of the above-mentioned vehicle and conducting an inspection of the corresponding leakage.

Description

Apparatus for Inspecting a Vehicle and Method Thereof The present invention relates to a vehicle inspection device and a method thereof, and more specifically, to a technology for performing a leakage quality inspection of a vehicle. Leakage caused by faulty sealing and assembly in vehicles not only leads to a decline in product quality and brand image due to noise, vibration, and water leakage, but also incurs massive recall costs. Meanwhile, current quality inspections using lasers at the component level and quality inspections through post-assembly test runs are not quality inspection methods for reviewing whether leakage has occurred. Therefore, there is a need for a method to perform more efficient and accurate leakage inspections. FIG. 1 is a block diagram showing the configuration of a vehicle system including a vehicle inspection device according to one embodiment of the present invention. FIG. 2 is a schematic diagram illustrating a system configuration for performing leakage quality inspection using an acoustic transfer function according to an example of the present invention. FIG. 3 is a schematic diagram illustrating a configuration for managing acoustic transfer function data and a database according to an embodiment of the present invention. FIG. 4 is a schematic diagram illustrating a configuration for performing a leakage test by considering the increase in sound pressure of the corresponding frequency according to one embodiment of the present invention. FIG. 5 is a schematic diagram illustrating a configuration for identifying leakage types and performing inspections using big data according to another embodiment of the present invention. FIG. 6 illustrates a computing system according to one embodiment of the present invention. Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted. In describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application. Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 6. FIG. 1 is a block diagram showing the configuration of a vehicle system for performing vehicle inspection according to one embodiment of the present invention. Referring to FIG. 1, a vehicle inspection system (100) according to one embodiment of the present invention includes a communication unit (110), a storage unit (120), a display unit (130), a processor (140), and an alarm unit (150), and can perform background transmission of data for wireless updates of the vehicle's software from a server (20) outside the vehicle. This vehicle system (100) can control background transmission for the wireless update based on at least one of network load, vehicle power status, battery status, and remaining ROM data transmission estimated time. Additionally, it can control the performance of wireless updates for each ECU in the vehicle. It controls the execution of updates using commands corresponding to each function for each update. Additionally, after a successful update, it can control the system to read the SW version, verify the completion of normal reprogramming, and report it. The communication unit (110) is a hardware device implemented with various electronic circuits to transmit and receive signals via wireless or wired connection. In the present invention, it performs in-vehicle communication through CAN communication, CAN-FD communication, LIN communication, Ethernet communication, etc., and may include various communication units such as a mobile communication unit, a broadcast reception unit such as a DMB module or DVB-H module, a short-range communication unit such as a Zigbee module or NEC module, a Bluetooth module, and a Wi-Fi communication unit for communication wi