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Model-Based Brake Disc Temperature Prediction on High Speed Testing Mode and Circuit
Technical Paper
2020-01-0214
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A brake is a mechanical device that inhibits the motion by absorbing energy from a moving system. It is used for slowing or stopping a moving vehicle, wheel, axle, or to prevent its motion, most often accomplished by friction energy. Commonly, most brakes use friction between two surfaces pressed together to convert the kinetic energy of the moving object into heat, though other methods of energy conversion may be employed. If braking is repeated or sustained in high load or high-speed conditions, the motion will be unstable and can lead to a loss of stopping power because the disc capability for braking is not enough. These phenomena are generally defined as brake fading. Brake fade is caused by an overheating brake system. This paper describes the thermal modeling and process to predict the disk temperature under a condition which causes the fade characteristics. Also, the model of disc temperature prediction developed with consideration of acceleration and deceleration from the vehicle specification by combining the full vehicle modeling with thermal disc model. The disc temperature model is a highly reliable model because it is correlated with measurement data and based on this correlated thermal model, it can be predicted the brake disc geometrical parameters according to the specification change of the vehicles in the concept stage before the prototype development.
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Citation
Jeong, P., Lee, J., Oswald, M., and Kellner, S., "Model-Based Brake Disc Temperature Prediction on High Speed Testing Mode and Circuit," SAE Technical Paper 2020-01-0214, 2020, https://doi.org/10.4271/2020-01-0214.Also In
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