| ESTIMATION OF THE ADHESION FORCE FOR A DISC BRAKE IN A SKID CONTROL CONDITION |
| Y.-M. KIM1, Y.-G. KIM2, S.-W. KIM2, C.-K. PARK2, Tae Won Park1 |
1Ajou University
2Korea Railroad Research Institute |
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| ABSTRACT |
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The performance of brakes has become important due to increased train speeds. The brake system of a train must possess a large brake force to stop the train safely within a limited stopping distance. However, an excessive brake force deteriorates the ride comfort and causes the train to skid. Therefore, it is necessary to control the brake force within the adhesion force limit. This paper presents an analytical method to estimate the relationship between the brake and adhesion forces of a disc brake system. This method has been applied to the actual disc braking control system of the Korea High-Speed Train (HSR350x), and the adhesion force is estimated in an actual skid condition. |
| Key Words:
Skid, Slip, Adhesion force, Brake force, Dynamic model, Wheel flat, Korea high-speed train (HSR350x), Stopping distance |
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