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A Model for the Mechanical Subsystem of an Air Brake System
Technical Paper
2009-28-0058
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Ensuring the safety of passengers is one of the prime challenges for vehicle design engineers. The braking system is the most important safety feature incorporated in a vehicle. Most of the commercial vehicles such as trucks, buses, etc., are equipped with an air brake system. The air brake system is sensitive to maintenance and needs to be monitored regularly to ensure its proper functioning. Current monitoring methods of air brake systems are predominantly manual in nature and can be performed only when the vehicle is stationary. One of the most important parameters that are critical for the proper functioning of an air brake system is the push rod stroke. The push rod stroke is related to the clearance between the brake pad/shoe and the brake drum and hence is indicative of brake wear. The objective of this research work is to study the mechanical subsystem of the air brake system and develop a mathematical model for the same. This model will correlate the push rod stroke and the clearance between the brake pad/shoe and the brake drum. This model will ultimately be useful for providing a warning in case of excessive brake wear and helpful in avoiding a degradation in the performance of the brake system thus increasing the safety of the vehicle. This model will also be useful for studying the response of a commercial vehicle during braking. An experimental setup has been developed and data collected from the same are used to corroborate this mathematical model.
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Citation
Sonawane, D. and Subramanian, S., "A Model for the Mechanical Subsystem of an Air Brake System," SAE Technical Paper 2009-28-0058, 2009, https://doi.org/10.4271/2009-28-0058.Also In
References
- Accidental deaths and suicides in India 2007 National Crime Records Bureau, Ministry of Home Affairs, Government of India http://ncrb.nic.in/ADSI2007/Accident07.pdf 2007 July 2009
- Safety report: Analysis of intrastate trucking operations National Transportation Safety Board Washington, D. C. March 2002
- Limpert, R. Brake Design and Safety Second SAE 1999
- USDOT-FMCSA The large truck crash causation study http://ai.fmcsa.dot.gov/Itccs/data/documents/reportcongress_11_05.pdf 2005 July 2009
- Subramanian, S. C. Swaroop, D. Rajagopal, K. R. 2006 A Diagnostic System for Air Brakes in Commercial Vehicles IEEE Transactions on Intelligent Transportation Systems 7 3 360 376
- On-board brake warning device for air brake equipped vehicles http://www.patentstorm.us/patents/5892437/fulltext.html 2007 July 2009
- Kandt, L. D. Reinhall, P. G. Scheibe, R. R. 2005 Determination of Air Brake Adjustment From Air Pressure Data Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 215 21 29
- Heusser, R. B. 1991 Heavy Truck Deceleration Rates as a Function of Brake Adjustment Society of Automotive Engineers, paper 910126
- Karthikeyan, P. Subramanian, S. C. 2009 Development and Modelling of an Electropneumatic Brake System Proceedings of the 2009 IEEE Intelligent Vehicles Symposium 858 863