• The tire
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• s.170
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• pp.69-72
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• 1994

• The tire
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• s.51
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• pp.22-22
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• 1974

• The tire
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• s.64
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• pp.18-21
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• 1976

목하개최중인 오끼나와 국제해양전람회에서 처음으로 신도시교통 시스템이라고 하는 CVS(Computer Controlled Vehicle System)가 실용화되었다. 이 CVS는 동해양박람회장 2km의 전용궤도를 무인으로 콤퓨우터어에 의해서 운전하여 6명승의 전 16대가 연일 아무 트러블도없이 활약, 관계방면의 관심을 집중시키고 있다. 그런데 이 충승 해양박의 CVS에 채용된 차륜이 고무의 타이어란 점에 주목하기바란다. 고무의 타이어라고 하드라도 이 알맹이가 다르다. 어떻게 다른고하니 보통타이어의 알맹이는 공기이며 그 공기가 큰 역할을 하여주고 있는바이나 이 타이어의 경우는 공기의 대신에 포옴러버어(Form Rubber)가 차있다고 하는 점이다. 알맹이가 공기가 아니란 것은 타이어에 있어서 최대의 약점인 빵꾸라고 하는 고장이 없다는 것이다. 최근노우 빵꾸타이어라고 하는 안전타이어의 많은 시작품이 세계각타이어 메이커어로부터 발표되고 있으나 광의로 이「포옴충진타이어」도 그 1종이라고 할 수가 있을 것 같다. 물론 동종의 타이어는 일찍부터 각방면에서 시작연구는 되고 있었으나 용도가 너무나 한정되어 실용화가 충분하다곤 할 수가 없었다. 그러나 구빈고무가 만든 이 포옴 충진타이어는 훌륭하게 오끼나와 해양박에서 실용화된 것이다. 동사기술진의 설명에 의하면 알맹이는 물론이고 모든 면에 있어서 종래의 그것과는 일맥 상통한 것이라고 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.346-349
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• 2015

Generally, in order to verify the degree of tire wear or abnormal wear, a driver or an auto mechanic checks the degree of tire wear and the existence of tire abnormality, directly with the naked eye or by way of using a gauge equipment. In case of such verification, individual subjective judgments may be involved or a driver may suffer heavy burdens to expend the time and cost for using the wheel alignment equipment. Therefore, this thesis will use a number of laser sensors to check the existence of abnormal wear and the degree of wear on each tire and develop a system checking the sides of tires to receive the tire information, so that subjective judgments may be overcome and objective and accurate judgments may be rendered.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.7
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• pp.2925-2930
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• 2011

A vehicle fuel economy is very important issue in the view of fuel cost and environmental regulation. The fuel economy is much improved according to the development of electric, electronic and mechanical technology, but up to now the measurement of it tests the given mode(LA-4, FTP-75, etc) within computer simulation program and engine dynamometer. This fuel economy is different with it of real road. The one of main reason is not considered the gradient of the road. To estimate the effects of fuel economy at highway with gradient in this paper, we measure the amount of fuel consumption and calculate the fuel economy of it with running the Youngdong highway with high gradient. Also this paper analysis and compares the fuel economy with gradient and without gradient when the vehicle runs the same driveway. Then we calculate the total energy created the difference of fuel consumption amount of the two cases and calculate the consumpted energy by tire driving force from the torque and power of engine in the simulation. This paper verifies the relation of the driving force and the total energy by creating the difference of fuel consumption amount. This paper also proposes the method of fuel economy improvement despite of gradient at the result.

• The Journal of the Acoustical Society of Korea
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• v.11 no.4
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• pp.5-13
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• 1992

The vibration of a vehicle, which is caused by and transmitted from the engine, has significant effect on the ride comfort and the dynamic characteristics of the engine mount system has direct influence on the vibration and noise of the vehicle. This paper examines the body shake caused by the engine excitation force on engine key-off of a jeep by experiment and computer simulation using a general purpose mechanical system program, DADS. The computer simulation model consists of the engine, body including frame, and front and rear axles and each axle has right and left tires. The force element between body and suspension is modeled as a combination of suspension spring and damper, and the unsprung mass has roll and pitch motion. The body shake obtained from experiment was compared with the result of computer simulation. Parametric study of the body shake on engine key-off is performed with changing the stiffness of engine mount rubber, the engine mount installation angle and position of engine mounts by using the verified computer simulation model.