| Autor: |
Tetsuaki KAWATA, Tadashi KOUNO, Hitoshi SAKUMA |
| Jazyk: |
japonština |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 901, Pp 21-00193-21-00193 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2187-9761 |
| DOI: |
10.1299/transjsme.21-00193 |
| Popis: |
Automobiles are indispensable as a means of daily transportation. On the other hand, accidents are endless. Therefore, improving vehicle motion and steering stability of automobiles is one of the important issues. In Japan, while there are many narrow urban roads, the maximum speed has been raised to 120km / h in some sections of the expressway. Therefore, future automobiles will be required to have steering stability suitable for a wider speed range. Information such as steering wheel torque and yaw behavior that a person receives from the vehicle is mainly generated from tire cornering force and self-aligning torque. In this paper, the cornering force and self-aligning torque were measured by applying a slip angle simulating high-speed running at 100km / h and low-speed running at speeds of 30km / h or less to the tires on the flat belt tester. Tire slip angle at high speeds is ± 0.65degrees with a 0.2Hz sine waveform equivalent to a lane change that is generally performed on highways. Tire slip angle at low speed is 0 to 1.3degrees with 6.5deg/sec, which is also generally performed on congested urban roads avoid other traffics. It was observed that at low speeds there is difference between time histories of the measured self-aligning torque and the self-aligning torque due to the cornering force, which is given as product of the cornering force and the pneumatic trail. This phenomena is thought to be raised from torsional deformation of the tire. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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