KR0174580B1 - Apparatus for measuring and analyzing the vibration of a car handle - Google Patents
Apparatus for measuring and analyzing the vibration of a car handle Download PDFInfo
- Publication number
- KR0174580B1 KR0174580B1 KR1019940000173A KR19940000173A KR0174580B1 KR 0174580 B1 KR0174580 B1 KR 0174580B1 KR 1019940000173 A KR1019940000173 A KR 1019940000173A KR 19940000173 A KR19940000173 A KR 19940000173A KR 0174580 B1 KR0174580 B1 KR 0174580B1
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- vibration
- vibration signal
- steering wheel
- signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H1/00—Measuring characteristics of vibrations in solids by using direct conduction to the detector
- G01H1/003—Measuring characteristics of vibrations in solids by using direct conduction to the detector of rotating machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
- G01M17/065—Steering behaviour; Rolling behaviour the vehicle wheels co-operating with rotatable rolls
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
자동차 핸들의 진동측정및 분석장치에 있어서, 핸들의 좌우에 동방향으로 설치된 1개의 가속도계 및 상하에 반대방향으로 설치된 가속도계로 구성되는 진동검출부와, 상기 진동검출부에서 검출된 진동신호를 증폭하는 진동신호 증폭기와, 진동신호 증폭기에서 증폭된 진동신호를 쉬미, 세이크 및 전체 진동신호로 분리 검출하여 디지탈 신호로 변환시키는 진동신호 분리검출부와, 전륜 두바퀴의 차축과 상호 회전가능하게 설치된 슬립링에 부착된 어댑터에 광센서 및 회전엔코더를 장착하여 구성되는 위상검출부와, 상기 분리검출된 진동신호 및 검출된 위상을 처리하여 표시하도록 컴퓨터, 모니터 및 주변장치로 형성되는 검출신호처리부로 구성된 자동차 핸들의 진동측정 및 분석장치를 제공한다.An apparatus for measuring and analyzing vibration of a steering wheel of a vehicle, comprising: a vibration detector comprising one accelerometer disposed at the left and right sides of the steering wheel in the same direction and an accelerometer disposed at opposite sides of the steering wheel; and a vibration signal for amplifying the vibration signal detected by the vibration detector. It is attached to an amplifier, a vibration signal separation detecting unit for separating the vibration signal amplified by the vibration signal amplifier into a digital signal by detecting the shimmy, shake and total vibration signal, and a slip ring installed to be rotatable with the axles of the front wheels. Vibration measurement of the steering wheel of the vehicle comprising a phase detector configured to attach an optical sensor and a rotary encoder to the adapter, and a detection signal processor formed of a computer, a monitor, and a peripheral device to process and display the separated detected vibration signal and the detected phase. And an analysis device.
Description
제1도는 본 발명의 개략적인 구성도.1 is a schematic configuration diagram of the present invention.
제2도는 본 발명을 사용하여 측정한 전륜 두바퀴의 위상차가 존재하는 것을 나타내는 도면.2 is a diagram showing that there is a phase difference between two front wheels measured using the present invention.
제3도는 본 발명을 사용하여 측정한 전륜 두바퀴의 위상차가 존재하지 않는 것율 나타내는 도면이다.3 is a diagram showing the rate at which there is no phase difference between two wheels measured using the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1,2 : 가속도계 3 : 핸들1,2: accelerometer 3: handle
4A,4B : 광센서 5A,5B : 회전엔코더4A, 4B: Optical sensor 5A, 5B: Rotary encoder
6A,6B : 슬립링 7A, 7B : 어댑터6A, 6B: Slip ring 7A, 7B: Adapter
9 : 차축 10A,10B : 바퀴9: axle 10A, 10B: wheels
100 : 진동검출부 200 : 진동신호 분리검출부100: vibration detection unit 200: vibration signal separation detection unit
300 : 위 상검출부 400 : 검출신호 처리부300: phase detection unit 400: detection signal processing unit
θ : 위상차 500 : 진동신호 증폭기θ: Phase difference 500: Vibration signal amplifier
본 발명은 자동차 핸들의 진동측정 및 분석장치에 관한 것이다.The present invention relates to an apparatus for measuring and analyzing vibration of a vehicle steering wheel.
일반적으로, 자동차 주행시 차량의 잘못된 정렬 및 타이어의 언밸런스에 의해 발생된 진동이 현가장치를 통해 핸들 및 차량 내부로 전달된다. 이때, 자동차의 핸들에는 상하좌우로 떨리는 세이크 진동과 원주 방향으로 떨리는 쉬미 진동이 합성된 전체 진동이 전달되며, 이러한 진동은 운전자의 승차감을 저하시키고 또한 장시간 운전시 운전자의 피로도를 증가시켜 건강을 해치게된다.Generally, vibrations caused by misalignment of the vehicle and unbalance of tires during vehicle driving are transmitted through the suspension to the steering wheel and the inside of the vehicle. At this time, the steering wheel of the car is transmitted by the vibration vibration shake up, down, left and right and the shimmy vibration trembling in the circumferential direction, such vibration lowers the driver's riding comfort and increases the fatigue of the driver when driving for a long time to harm the health do.
종래에는 자동차 핸들의 진동원인을 파악하기 위해 자동차 핸들의 상하에 1개의 가속도계를 설치하여 핸들의 진동을 측정하고 분석하였다. 그러나, 이와 같이 측정된 핸들의 진동은 전체 진동만을 나타낼뿐 진동을 세이크와 쉬미 진동으로 분리 측정하지 못하여 진동원인을 파악하기가 어려웠다. 또한, 전륜 두바퀴의 위상차를 측정할 수 없어 두바퀴의 위상차가 핸들의 진동에 미치는 영향을 평가하기 못하였다.Conventionally, in order to determine the cause of the vibration of the steering wheel, one accelerometer was installed above and below the steering wheel to measure and analyze the vibration of the steering wheel. However, the vibration of the handle thus measured represents only the total vibration, and it is difficult to identify the cause of vibration because the vibration cannot be separately measured by the shake and the shimmy vibration. In addition, the phase difference between the two wheels could not be measured, and thus the effect of the phase difference between the two wheels on the steering wheel vibration could not be evaluated.
따라서, 본 발명의 목적은 자동차 주행시 핸들의 진동을 세이크와 쉬미 진동으로 분리 측정하고, 분석하여 핸들의 진동원인을 파악할 수 있는 자동차 핸들의 진동측정 및 분석장치를 제공하기 위한 것이다.Accordingly, an object of the present invention is to provide a vibration measurement and analysis device for a vehicle handle that can determine the vibration cause of the steering wheel by analyzing the vibration of the steering wheel and shake and shimmy vibration while driving the vehicle.
본 발평의 다른 목적은 자동차 주행시 전륜 두바퀴의 위상차를 측정하여 핸들의 진동원인을 파악하고, 전륜 두바퀴의 위상차가 핸들의 진동에 미치는 영향을 평가할 수 있는 자동차 핸들의 진동측정 및 분석장치를 제공하기 위한 것이다.Another object of the present invention is to provide a vibration measuring and analyzing device of a car steering wheel that can measure the phase difference of the front wheels while driving the vehicle to identify the cause of the vibration of the steering wheel, and to evaluate the effect of the phase difference of the front wheels on the vibration of the steering wheel. It is to.
이하, 첨부된 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
제1도에 도시된 바와 같이, 본 발명은 핸들(3), 핸들(3)의 좌우에 동방향으로 설치된 1개의 가속도계(2) 및 상하에 반대방향으로 설치된 가속도계(1)로 구성되는 진동검출부(100)와, 상기 진동검출부(100)에서 검출된 진동신호를 증폭하는 진동신호 증폭기(500)와, 진동신호 증폭기(500)에서 증폭된 진동신호를 쉬미, 세이크 및 전체 진동신호로 분리 검출하여 디지탈 신호로 변환시키는 진동신호 분리검출부(200)와, 전륜 두바퀴(10A,10B)의 차축(9)과 상호 회전가능하게 설치된 슬립링(6A, 6B)에 부착된 어댑터(7A,7B)에 광센서(4A,4B) 및 회전엔코더(5A,5B)를 장착하여 구성되는 위상검출부(300)와, 상기 분리검출된 진동신호 및 검출된 위상을 처리하여 표시하도록 컴퓨터, 모니터 및 주변장치로 형성되는 검출신호처리부(400)로 구성된다.As shown in FIG. 1, the present invention provides a vibration detecting unit comprising a handle 3, one accelerometer 2 installed in the same direction on the left and right sides of the handle 3, and an accelerometer 1 installed in the opposite direction on the upper and lower sides. (100), the vibration signal amplifier 500 for amplifying the vibration signal detected by the vibration detection unit 100, and the vibration signal amplified by the vibration signal amplifier 500 is separated into a shimmy, a shake and a total vibration signal To the adapter (7A, 7B) attached to the vibration signal separation detection unit 200 for converting into a digital signal, and slip rings (6A, 6B) rotatably installed with the axles (9) of the front wheels (10A, 10B). Phase detection unit 300 comprising optical sensors 4A and 4B and rotary encoders 5A and 5B, and a computer, a monitor, and a peripheral device to process and display the separated detected vibration signal and the detected phase. It consists of a detection signal processing unit 400.
이와 같이 구성된 본 발명의 작용효과는 다음과 같다.Effects of the present invention configured as described above are as follows.
자동차 주행시 차량의 잘못된 정렬 및 타이어의 언밸런스에 의해 발생한 진동이 자동차의 핸들(3)로 전달된다. 진동검출부(100)는 핸들(3)의 상하 및 좌우에 설치된 가속도계(1,2)로 핸들(3)에 전달된 진동신호를 진동신호 증폭기(500)로 증폭하여 진동신호 분리검출부(100)로 전송한다 .Vibration caused by misalignment of the vehicle and unbalance of tires during vehicle driving is transmitted to the steering wheel 3 of the vehicle. The vibration detector 100 amplifies the vibration signal transmitted to the handle 3 with the vibration signal amplifier 500 by accelerometers 1 and 2 installed on the top, bottom, left and right sides of the handle 3 to the vibration signal separation detector 100. send .
진동신호 분리검출부(200)는 가속도계(1)에서 검출되어 진동신호 증폭기(500)에 의해 각각 증폭된 2개의 진동신호를 합성하여 상하좌우로 떨리는 세이크 진동을율 상쇄시키므로서 원주방향으로 떨리는 쉬미 진동신호를 검출하고, 가속도계(2)에서 검출되어 진동신호 증폭기(500)로 증폭된 2개의 진동신호를 합성하여 원주방향으로 떨리는 쉬미 진동을 상쇄시키므로서 상하좌우로 떨리는 세이크 진동신호를 검출한다. 또한, 세이크 및 쉬미로 분리 검출된 진동신호를 합성하고 평균한 전체 진동신호를 검출하여 세이크, 쉬미 및 전체 진동신호를 각각 디지탈신호로 변환시킨 데이터를 검출신호 처리부(400)로 보낸다.The vibration signal separation detecting unit 200 synthesizes two vibration signals detected by the accelerometer 1 and amplified by the vibration signal amplifier 500, thereby canceling the shake vibrations up, down, left, and right, and thus shaking the shimmy vibration in the circumferential direction. A signal is detected, and a shake vibration signal that is shaken up, down, left, and right is detected by synthesizing two vibration signals detected by the accelerometer 2 and amplified by the vibration signal amplifier 500 to cancel the shimmy vibration that is circulated in the circumferential direction. In addition, the vibration signal separated by the shake and the Shimi are synthesized and the average vibration signal is detected, and the data obtained by converting the shake, Shimi and all vibration signals into digital signals are sent to the detection signal processor 400.
한편, 위상검출부(300)는 광센서(4A,4B)로 전륜 두바퀴(10A,10B)가 회전하는 것을 감지하여 1회전마다 펄스를 발생시키고, 회전엔코더(5A,5B)로 각 바퀴(10A,10B)의 1회전 간격을 1도 간격으로 판독하여 검출된 바퀴(10A,10B)의 위상을 검출신호 처리부(400)로 보낸다.On the other hand, the phase detector 300 detects that the front wheels 10A, 10B rotate by the optical sensors 4A, 4B, and generates a pulse for each revolution, and each wheel 10A by the rotary encoders 5A, 5B. 1B intervals of 10B are read at 1 degree intervals, and the detected phases of the wheels 10A and 10B are sent to the detection signal processing unit 400.
검출신호 처리부(400)는 진동신호 분리검출부(200)에서 입력된 세이크, 쉬미 및 전체 진동신호 데이터를 각각의 표준신호 데이터와 상호 비교하여 차량의 잘못된 정열, 타이어의 언밸런스 및 조향장치의 이상등 핸들(3)의 진동원인을 판단한다. 또한, 위상검출부(300)에서 검출된 두바퀴(10A,10B)의 위상을 상기 엔코더를 사용하여 비교함으로써 제2도와 같이 위상차(θ)가 존재하면 핸들(3)의 진동원인이 타이어의 언밸런스에 기인한 것으로 판정하고, 두바퀴(10A,10B)의 위상차(θ)가 핸들(3)의 진동에 미치는 영향을 평가한다. 그리고, 제3도와 같이 두바퀴(10A,10B)의 위상차(θ)가 존재하지 않으면 핸들(3)의 진동원인이 차량의 잘못된 정렬에 기인한 것으로 판정한다.The detection signal processing unit 400 compares the shake, shimmy and total vibration signal data input from the vibration signal separation detection unit 200 with the respective standard signal data to handle misalignment of the vehicle, unbalance of the tire, and abnormality of the steering system. Determine the cause of vibration in (3). Also, by comparing the phases of the two wheels 10A and 10B detected by the phase detection unit 300 using the encoder, if the phase difference θ exists as shown in FIG. 2, the cause of vibration of the handle 3 may be caused by the unbalance of the tire. It judges that it originated, and evaluates the influence which the phase difference (theta) of two wheels 10A, 10B has on the vibration of the handle 3. And if the phase difference (theta) of the two wheels 10A and 10B does not exist like FIG. 3, it is determined that the vibration cause of the steering wheel 3 is due to the misalignment of the vehicle.
상기한 바와 같이, 본 발명의 의하면 자동차 핸들의 진동을 세이크, 쉬미 및 전체 진동으로 분리 측정하여 각각의 표준 진동과 상호 비교함으로써 핸들의 진동원인을 정확하게 파악할 수 있는 효과가 있다. 또한, 전륜 두바퀴의 위상을 측정하여 두바퀴의 위상차로 핸들의 진동이 차량의 잘못된 정렬에 기인한 것인가 또는 타이어의 언밸런스에 기인한 것인가를 쉽게 파악할 수 있고, 두바퀴의 위상차가 핸들의 진동에 미치는 영향을 평가할 수 있는 효과가 있다.As described above, according to the present invention, the vibration of the steering wheel of the car is measured separately by shake, shimmy, and total vibration, and compared with each of the standard vibrations, so that the cause of vibration of the steering wheel can be accurately understood. In addition, by measuring the phase of the two front wheels, it is easy to determine whether the steering wheel vibration is due to misalignment of the vehicle or the tire unbalance due to the phase difference of the two wheels. The effect is to assess the impact.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940000173A KR0174580B1 (en) | 1994-01-06 | 1994-01-06 | Apparatus for measuring and analyzing the vibration of a car handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940000173A KR0174580B1 (en) | 1994-01-06 | 1994-01-06 | Apparatus for measuring and analyzing the vibration of a car handle |
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| Publication Number | Publication Date |
|---|---|
| KR950023969A KR950023969A (en) | 1995-08-18 |
| KR0174580B1 true KR0174580B1 (en) | 1999-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940000173A KR0174580B1 (en) | 1994-01-06 | 1994-01-06 | Apparatus for measuring and analyzing the vibration of a car handle |
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| KR (1) | KR0174580B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700454A (en) * | 2016-04-21 | 2018-10-23 | 日本精工株式会社 | The extraordinary noise detection method of steering and the evaluating apparatus of steering |
-
1994
- 1994-01-06 KR KR1019940000173A patent/KR0174580B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700454A (en) * | 2016-04-21 | 2018-10-23 | 日本精工株式会社 | The extraordinary noise detection method of steering and the evaluating apparatus of steering |
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| Publication number | Publication date |
|---|---|
| KR950023969A (en) | 1995-08-18 |
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